Valerie L. Katz, MD, FACS

• Assistant Professor of Clinical Surgery
• Weill Medical College of Cornell University
• Section Chief, Department of General Surgery
• Lincoln Medical and Mental Health Center
• Bronx, New York

Complications of therapeutic intervention for bleeding include those related to airway management medications resembling percocet 512 purchase pirfenex with visa, aspiration treatment 1st degree burn buy pirfenex 200mg on line, and pulmonary complications symptoms yeast infection women order pirfenex 200 mg free shipping. Obtaining hemodynamic stability is imperative prior to proceeding with a minimally invasive approach treatment associates safe 200mg pirfenex, such as therapeutic endoscopy medicine 5513 order pirfenex 200 mg online, and blood products should be immediately available. Awareness that rebleeding occurs in up to 50 % of cases when a blood vessel is visible is important and surveillance endoscopy prior to patient discharge may be useful in preventing urgent repeat endoscopy thereafter in those patients [2, 9]. The endoscopic techniques described previously for gastric bypass are also applicable in treating complications of the single staple line of the gastric sleeve as well as the multiple staple lines of the biliopancreatic diversion with duodenal switch. Sleeve Calibration In some circumstances, the endoscope can serve as a calibration tool during bariatric surgery. Sleeve gastrectomy is often performed with a transorally placed bougie of 32­38 French diameter to calibrate the diameter of the gastrectomized stomach and guide stapler placement. This technique potentially reduces the risk of esophageal injury during insertion of the bougie through direct visualization [10]. Reduced visceral trauma is also appreciated as the endoscope is introduced a single time to serve in the role of sleeve calibration as well as intraoperative inspection of the sleeve staple line. Postoperative Endoscopy the presence of adverse gastrointestinal symptoms after bariatric surgery and the management of surgical complications are the most common indications for postoperative endoscopy. These include abdominal pain, unrelenting nausea, vomiting, dysphagia, heartburn, regurgitation, diarrhea, bleeding, anemia, and weight regain. These include phlebitis, hypoxemia, hypoventilation, 35 the Role of Endoscopy in Bariatric Surgery 395. Patients who are at higher risk for these complications include the elderly, patients with pulmonary compromise, and those with sleep apnea. Bleeding, infection, and reaction to medications are reported in less than 1 % of cases and perforation is exceedingly rare. The goal of short-term postoperative endoscopy is to assess for structural pathology, such as ulcers or strictures. The most common diagnoses found with upper endoscopy after bariatric surgery are marginal ulcer, anastomotic stricture, staple line dehiscence, band erosion or slippage, gastroesophageal reflux sequelae, and choledocholithiasis [3]. Esophageal dilatation is frequently detected after gastric band, most commonly occurring because of chronic obstruction. Gastric outlet obstruction can be encountered secondary to anastomotic stenosis following bypass and biliopancreatic diversion with duodenal switch and structural kink following sleeve gastrectomy or due to a slipped gastric band. The etiology of each of these conditions is multifactorial, including local tissue ischemia, anastomotic tension, technical error, and noncompliance with postoperative dietary and lifestyle modifications. On rare occasion, recurrent and refractory marginal ulcers require anastomotic revision involving healthier adjacent small bowel and stomach for definitive treatment. Stricture After gastric bypass or biliopancreatic diversion with duodenal switch, progressive food intolerance 3 or more weeks after surgery suggests stenosis of the proximal anastomosis. The reported incidence is 3­12 % and is typically hallmarked by dysphagia, nausea, and vomiting [3]. Endoscopic balloon dilatation with a 12­20 mm balloon is the preferred initial treatment modality, although this can also be achieved via wire-guided bougie dilatation as well. The balloon is inserted 2 cm or less into the stenosis and it is dilated to allow a smaller bore scope with a working channel through the stenosis. When this is achieved, the mid aspect of the balloon is positioned at the stenosis and fully inflated for 60 s. In this case, medical therapy is most appropriate as long as the anastomosis is patent. Complications associated with balloon dilation are associated with blind insertion. The placement of covered stents has limited value in the treatment of anastomotic stricture, but may be used in select refractory cases [2]. Balloon dilatation and stenting are Marginal Ulcer Marginal ulcers typically present as severe epigastric discomfort, which is temporarily resolved with gastrointestinal cocktails consisting of anesthetic and mucosal coating agents such as viscous lidocaine and sucralfate along with antisecretory medication. These ulcers will often heal with conservative management over the course of several weeks. Conversion of the sleeve to a formal Roux-en-Y gastric bypass serves as definitive treatment in the case of failed repeated endoscopic treatments. Postoperative Leaks Although rare, one of the more concerning perioperative complications following gastric bypass, biliopancreatic diversion with duodenal switch, and sleeve gastrectomy includes staple line leak. Leaks after gastric bypass and duodenal switch typically occur at the proximal anastomosis. Following sleeve gastrectomy, they most commonly occur along the most proximal staple line near the esophagogastric junction and often present within the first or second week following surgery. The mainstay of the treatment of an anastomotic or staple line leak is source control using wide drainage and distal enteral access for nutrition. The use of fully covered stents to assist with source control and divert enteral flow downstream is gaining favor in that this allows the surrounding tissues to heal and close the leak over the course of 6­8 weeks. Fully covered stent migration is a familiar problem for endoscopists who frequently treat patients with sleeve-related leaks. Although the initial stent is deployed thus covering the leak, distal migration into the sleeved portion of the stomach with the distal landing zone resting against the pylorus results in uncovering of the leak proximally. Deploying an identical stent above and inside the initial stent often results in telescoping of the stents with both resting below the leak. Attempts to secure proximal stents in place with clips and sutures have been marginally successful. The use of partially covered stents results in rapid ingrowth of the esophagogastric mucosa through the stent interstices resulting in significant difficulty in stent removal thereafter. Nesting two different fully covered stents, however, utilizes the structure of each to benefit the combination of the two. Deploying a distal stent with "dumbbell"-shaped proximal and distal landing zones and then deploying a proximal stent (of similar diameter) with simple flared ends allow for the distal flared end to nest within the proximal "dumbbell" of the distal stent, essentially stacking the stents and locking them in place until the leak has healed and proximal removal is indicated. In addition to source control and distal feeding to treat leaks, the leak itself can be plugged or closed at the time of initial endoscopy. To augment healing of the tissues involved in the leak, endoscopic coagulation can be used to freshen the involved surfaces, followed by endoscopic suturing, or the placement of fibrin glue, hemoclips, or transmural clips. A French clinical trial is currently enrolling patients with sleeve-based leaks to determine the effectiveness of large transmural clips to reduce the healing time of these leaks. Once this is diagnosed, the band is no longer functional and removal is necessary. Endoscopic removal involves cutting the band endoscopically with transoral removal of the band and tubing following abdominal wall disconnection of the port. For patients who have undergone adjustable gastric banding and present with sudden intolerance to per oral intake, band slippage is a concerning possibility. Endoscopic findings typically include an enlarged gastric pouch with a very narrow or acutely tilted passage into the distal stomach. Prompt treatment includes surgical repositioning of the band in the correct position on the gastric cardia. As previously discussed, although some complications following index bariatric surgeries will require immediate surgical revision, many can be approached using definitive transoral flexible endoscopy with or without laparoscopic assistance. Significant weight loss in morbidly obese individuals has been shown to reduce reflux symptoms as well. The gastric bypass not only serves as the standard for major weight loss procedures, it also serves as a durable antireflux procedure due to the disconnection of the acidproducing gastric fundus and body from the esophagus. There are, however, a small minority of patients who present with refractory gastroesophageal reflux disease due to esophageal regurgitation from the jejunum and gastric pouch, through an incompetent lower esophageal sphincter. Because of their altered foregut anatomy, a traditional fundoplication is not possible in patients who have undergone gastric bypass or biliopancreatic diversion with duodenal switch. All seven subjects had documented postgastric bypass gastroesophageal reflux disease, documented with 24 h pH testing (mean fraction of time 7 % ± 2 % for pH < 4. Biliopancreatic Access An obstacle for endoscopists following Roux-en-Y gastric bypass and biliopancreatic diversion with duodenal switch is accessing the biliopancreatic tree for diagnostic as well as therapeutic purposes. Following division of the stomach, the traditional transoral endoscopic route to the duodenum and biliopancreatic anatomy is not a straightforward option. Three options are available after these procedures: percutaneous transhepatic approaches, double-balloon enteroscopy, or surgically assisted remnant gastrostomy or duodenostomy. The surgically assisted technique has a high success rate and is widely available. This method has the advantage of direct access to the duodenum and visualization of the papilla in the usual anatomic orientation. In each case, the gastric remnant was accessed laparoscopically and a 15 mm trochar placed transabdominally into the stomach. Reavis Although so far we have discussed the benefits of detecting bariatric related pathology following surgery, upper endoscopy is also useful in detecting non-bariatric pathology. Forensic Endoscopy Once a patient has undergone bariatric surgery, lifelong compliance with lifestyle modifications as well as follow-up with healthcare providers experienced in the care of the bariatric patient is imperative. Due to economic, familial, and professional circumstances, many well-intended patients are unable to maintain close connection with their bariatric providers. Some patients develop surgically related complications long after their index procedure has been completed. Following a careful history and physical exam, radiographs such as an upper gastrointestinal swallow study can provide clues regarding current gastrointestinal enteric flow, regurgitation, obstruction, and stasis. Upper endoscopy can further elucidate the original surgical configuration as well as functional changes that have occurred. The setup and positioning for forensic endoscopy is the same as for standard preoperative upper endoscopy. Awareness and understanding of the history of the most common bariatric surgical procedures over the past several decades is highly useful in this clinical situation. From 1950 to 2000 bariatric procedures were classified into three categories: malabsorptive, malabsorptive/restrictive, and purely restrictive. Although most of these procedures are not currently being performed, it is still common in bariatric surgical practice to see patients that have undergone these procedures in the past. The original operation consisted of an end-to-end jejunoileostomy with a separate ileocecostomy to drain the bypassed bowel. Several modifications to this procedure were reported, including the bypassed segment being anastomosed to the sigmoid or transverse colon. These procedures were abandoned due to sequelae including, steatorrhea, uncontrolled diarrhea, nephrolithiasis, electrolyte imbalances, bacterial overgrowth in the bypassed limb, hepatic fibrosis, and liver failure [15]. During workup for these presenting conditions, lower endoscopic findings typically include ileocolic anastomoses usually without structural concern. Surgical reversal is recommended for patients suffering from the long-term sequelae listed above. Today, modern malabsorptive procedures share a common trait in that each intestinal limb serves as a conduit for the flow of either alimentary contents or biliopancreatic secretions minimizing the bacterial and hepatic sequelae previously mentioned. After this early era of intestinal malabsorptive procedures, the biliopancreatic diversion gained popularity in the 1980s. Similar to a long intestinal limb gastric bypass, the biliopancreatic diversion was performed by creating a proximal gastric pouch of 200­500 ml transecting the stomach horizontally along with a distal gastrectomy. The proximal duodenum was closed and the jejunum was next divided 300 cm proximal to the ileocecal valve. The remaining biliopancreatic limb was anastomosed to the Roux limb 50 cm proximal to the ileocecal valve and thus created a very short common channel. In the 1990s the biliopancreatic diversion was modified to the more current configuration, which includes a duodenal switch. The pylorus is preserved 35 the Role of Endoscopy in Bariatric Surgery 399 and the proximal duodenum is divided. The bypassed biliopancreatic limb is anastomosed to the ileum 100 cm proximal to the ileocecal valve. Although fairly popular in Europe, this procedure comprises approximately 2 % of index bariatric procedures currently performed in the United States. Long-term sequelae from the biliopancreatic diversion with or without duodenal switch can include steatorrhea and uncontrolled diarrhea due to the extensive amount of bypassed intestine. The staple line and anastomotic configurations are similar to those seen with the sleeve gastrectomy and gastric bypass. Thus, similar structural defects can be anticipated during upper endoscopic workup of symptomatic patients including anastomotic stricture and functional kinking. Malabsorptive/Restrictive the combined malabsorptive/restrictive operations involved the creation of a small gastric pouch with a small outlet (restrictive component) that creates early satiety and a gastrointestinal bypass as a malabsorptive element. Originally, the gastric pouch was created based on the fundus with an undivided horizontal staple line partition. In the more current Roux-en-Y gastric bypass, the gastric pouch is based on the lesser curvature, which is stapled and divided from the remnant stomach. Originally a loop gastrojejunal anastomosis was created and more recently has been modified to a Rouxen-Y configuration to avoid bile reflux into the small gastric pouch. The early variation, which included the horizontal stapling of the stomach with no division and a loop gastrojejunostomy, was termed the mini gastric bypass. Symptoms related to bile regurgitation as well as staple line dehiscence of the mini gastric bypass and related variations have been reported by patients seeking revision surgery. Staple line dehiscence results in symptoms ranging from weight regain to heartburn from remnant gastric acid, resultant stricturing of the gastrojejunostomy, to nausea and vomiting due to stasis of ingested food in the vagotomized portion of the remnant stomach since it has rejoined the enteric pathway. Endoscopic findings in these patients include esophagitis, anastomotic strictures, and multiple gastrogastric fistulae in patients reporting heartburn and regurgitation. In patients reporting nausea and vomiting, it is common to find gastrogastric fistulae and retained food in the remnant stomach. Surgical conversion to either division and resection of the remnant stomach or complete conversion to sleeve gastrectomy or Roux-en-Y gastric bypass depending on original surgical anatomy and specific patient concerns will remedy the presenting symptoms in most circumstances. Restrictive the era of purely restrictive operations started with the gastroplasty in the early 1970s. Poor results led to its modification-reinforcing the outlet with a running suture initially and then with a polypropylene mesh or silastic ring and modifying the direction of the stapling vertically resulting in the vertical banded gastroplasty. Due to its unadjustable nature, it was largely supplanted over the past decade by the laparoscopic adjustable gastric band.

Based on this chronology of events treatment urinary incontinence buy pirfenex 200mg without a prescription, what are the possible mechanisms of action of the operative procedure Pure calorie deprivation treatment narcolepsy cost of pirfenex, as the weight loss in the first 2 postoperative weeks was so great that she had an efficient and definitive insulin-sensitizing effect medicine to help you sleep pirfenex 200 mg buy on line. Decreased renal glucose production medications cause erectile dysfunction generic 200mg pirfenex, as this is one of the main counter effects over impaired hepatic glucose production medicine 60 order pirfenex 200 mg amex. Increased muscle glucose intake, which is a wellknown effect after bariatric surgery. Enhanced incretin effect, as bypassing the proximal gut and delivering undigested food distally to the bowel is an almost immediate antidiabetic effect after Roux-en-Y gastric bypass. After a Roux-en-Y gastric bypass, diabetes control usually happens after major weight loss. After surgery, antidiabetics and insulin can be withdrawn immediately, and there is unquestionable evidence that they will never be needed again, regardless of the severity of the disease, as bariatric surgery is a formidable way to cure diabetes. Treatment of mild to moderate obesity with laparoscopic adjustable gastric banding or an intensive medical program: a randomized trial. Laparoscopic sleeve gastrectomy for diabetes treatment in nonmorbidly obese patients: efficacy and change of insulin secretion. Gastrointestinal metabolic surgery for the treatment of diabetic patients: a multi-institutional international study. Type 2 diabetes in obese patients with body mass index of 30­35 kg/m2: sleeve gastrectomy versus medical treatment. Glycemic control after stomach-sparing duodenal bypass surgery in diabetic patients with low body mass index. Moderate effect of duodenal-jejunal bypass surgery on glucose homeostasis in patients with type 2 diabetes. Jejunal nutrient sensing is required for duodenal-jejunal bypass surgery to rapidly lower glucose concentrations in uncontrolled diabetes. Effect of gastric bypass surgery in patients with type 2 diabetes and only mild obesity. Diabetes remission and insulin secretion after gastric bypass in patients with body mass index < 35 kg/m2. Diabetes remission and reduced cardiovascular risk after gastric bypass in Asian Indians with body mass index < 35 kg/m2. Outcomes of Metabolic Surgery Francesco Rubino, Ashwin Soni, and Alpana Shukla 31 Chapter Objectives In this chapter, we aim to: 1. Review the effects of gastrointestinal surgery on metabolic outcomes from retrospective and observational studies. Review the outcomes of metabolic surgery from prospective randomized controlled trial data. Introduction Definition of Metabolic Surgery Historically, "bariatric surgery" has been synonymous with "weight loss surgery. While the evidence in support of bariatric surgery is derived largely from clinical experience, the evidence base for metabolic surgery includes a large body of experimental data from studies in both obese and non-obese animal models [1]. The most striking of these benefits is the early improvement of diabetes in a majority of patients, which precedes significant F. Subsequently, the concept of "metabolic surgery" has evolved to more broadly indicate a surgical approach aimed at controlling of metabolic illnesses, and not just excess weight. At the Weill Cornell Medical Center, the two programs operate separately with distinct stated goals: (1) the metabolic surgery program with the stated intent of treating diabetes and metabolic disease and (2) the bariatric surgery program with a primary focus on weight loss. We sought to examine the clinical implications of this division as a means to better define and understand the surgical discipline of metabolic surgery. These two programs serve the same metropolitan area, share the same clinical facilities, offer the same surgical procedures, and use the same criteria to define eligibility for surgery in patients with morbid obesity. A retrospective review of a prospective database of 200 consecutive patients who underwent surgery at the two units was analyzed. Demographics, baseline clinical characteristics including prevalence and severity of diabetes, metabolic and cardiovascular disease, as well as 30-day postoperative morbidity and mortality were compared between the groups. Diabetes was more severe in metabolic surgery patients (higher mean hemoglobin A1c (HbA1c) levels, p < 0. There was no mortality in both groups, and there were no differences in minor or major perioperative complications. Our findings suggest that demographic characteristics, prevalence, and severity of diabetes and cardiovascular disease differ substantially in patients who present for metabolic surgery compared to those who seek conventional bariatric surgery for weight loss. Such differences have important ramifications for preoperative and postoperative patient management as well as outcomes of metabolic surgery. An intuitive consequence of the change in goals of surgery is the need to redefine success and failure of surgical treatment. A recent position statement of the International Diabetes Federation recommends the use of diabetes-specific parameters as a measure of efficacy of treatment when bariatric surgery is performed with the intent to treat diabetes [3]. These recommendations include mandatory assessment of HbA1c levels, C-peptide, fasting glycemia and insulin, lipid profile, and regular monitoring of arterial blood pressure, among others. The proportion of subjects in whom the remission was sustained at 10 years declined to 36 % in the surgical group and 13 % in the medical group [4]. It must be noted that most of these studies were retrospective with a follow-up duration of only 1­3 years. There is, however, an intrinsic difficulty in pooling data from several studies due to the differing criteria used to define remission. The remission rate for gastric bypass was significantly lower with the new definition than with the previously used definition (40. Several factors, both surgical and patient-related, have been identified to impact glycemic outcome after metabolic surgery. From a surgical perspective, the choice of procedure is an important determinant of outcome. Increased severity of diabetes as judged by higher preoperative HbA1c, longer duration of diabetes, and preoperative insulin usage have been noted to be significant factors inversely correlated with the remission of diabetes. Effect of Gastrointestinal Surgery on Lipid Metabolism the benefits of metabolic surgery extend beyond the correction of hyperglycemia and include favorable effects on other associated metabolic disorders. This assumes particular relevance in light of the evidence that tight glucose control reduces mainly microvascular complications in diabetes, whereas control of hypertension and dyslipidemia has a greater impact on reducing macrovascular complications, in particular cardiovascular disease. Hyperlipidemia can be present in up to 50 % of morbidly obese patients undergoing metabolic surgery [10]. The impact of metabolic surgery on the lipid profile varies based on the surgical procedure employed. Vila and coworkers have recently reviewed published studies about lipid changes and glucose metabolism regulation after different surgical procedures, although this did not include data on sleeve gastrectomies. For restrictive procedures, modest changes in total cholesterol have also been recorded by some authors. Comparisons of published studies are hampered by the lack of standard definitions of "normal" or healthy lipid profiles as well as the differing criteria for initiating, maintaining, or discontinuing statins. A confounding factor is that antihyperlipidemic medications are stopped in some patients who had been taking them before surgery while some internists do not stop statins even though the cholesterol is in the normal range. In the gastric banding group, there was an 18 % reduction of triglycerides and a 20. Moreover, all patients at the 5- and 6-year follow-up visits were no longer requiring any lipid-lowering medication, demonstrating the somewhat long-term efficacy of surgery. It has been reported that there is a correlation and association between percentage weight loss postoperatively and improvement of the lipid profile. However, the association between weight loss and changes in lipid parameters is not clear, with some studies showing a positive correlation and others not demonstrating a correlation between the two variables. Further conclusions seem premature due to the limited observations available over the long term. On average, 75 % of patients experienced resolution or improvement of their hypertension, demonstrating that benefits of this procedure also extend beyond amelioration of hyperglycemia [17]. This may in part be due to the fact that predominantly restrictive procedures were performed in this study [4]. Effect of Gastrointestinal Surgery on Hypertension Hypertension is one of the most common comorbidities associated with obesity and a major risk factor for coronary artery disease and stroke. The incidence of hypertension in obese patients ranges from 40 to 70 % depending on various criteria [15]. Their data showed that there was a significant reduction in mean systolic blood pressure from 140 ± 17 mmHg preoperatively to 123 ± 18 mmHg at 12 months postoperatively (p < 0. The mean diastolic blood pressure also decreased from 80 ± 11 mmHg to 71 ± 8 mmHg at 12 months postoperatively (p < 0. Of the patients, 46 % had complete resolution and 19 % of patients had improvement of their hypertension at 12-month follow-up. There was a positive correlation between the excess weight loss percentage and the resolution of hypertension. The duration of preexisting hypertension was also an important determinant of outcome. Improvement of hypertension occurred as early as 1 month postoperatively and was more frequently seen in patients with a shorter preoperative duration of disease [15]. Such multiple risk factor reduction might intuitively be expected to translate into reduced cardiovascular mortality. Long-term mortality from various causes was examined by a retrospective cohort study by Adams et al. The study revealed clear reductions in fatal and total myocardial infarctions, strokes and all-cause mortality. These findings, however, are consistent with previous data suggesting that the control of diabetes after bariatric surgery is also, at least in part, independent of weight loss. Clinical features include hirsutism, alopecia, anovulatory cycles, and infertility. It is closely linked to obesity, insulin resistance, and type 2 diabetes and is associated with an increased risk of stroke and coronary artery disease. In the bariatric female population, the prevalence is estimated at 13­30 % [23, 24]. These objectives are often difficult to achieve and sustain, particularly in the morbidly obese. Hirsutism improved or normalized in all but one patient, and there was also an improvement of other metabolic parameters, such as insulin sensitivity and dyslipidemia [23]. All patients in this study had complete resolution of their menstrual abnormalities and the mean time to normalization postoperatively was 3. Enrollment 60 60 150 Total cholesterol change (%) -7 (27) -49 (12) -17 (12) 2 0 1 (27) 4 (24) -0. At the end of the 2-year follow-up period, 73 % in the surgical group and 13 % in the conventional group achieved remission of diabetes (defined as fasting glucose level <126 mg/dl and glycated hemoglobin [HbA1c] value <6. Remission of type 2 diabetes was related to weight loss and lower baseline HbA1c levels. Although there was no significant blood pressure difference between study participants in the surgical and conventionaltherapy groups, there was a significant reduction in use of antihypertensive agents in the surgical group. There also was a reduction in the use of lipid-lowering medications in the surgical group (12/29 at baseline and 4/29 at 2 years, P =. The primary end point of the study was the rate of diabetes remission at 2 years (defined as a fasting glucose level of <100 mg/ dl [5. Systolic and diastolic blood pressure levels were significantly reduced in all three study groups allowing reduction/ discontinuation of antihypertensive medication in the majority of patients. The proportion of patients who reached the primary end point was 12 % in the medical-therapy group versus 42 % in the gastric-bypass group and 37 % in the sleeve-gastrectomy group. Significantly, all patients in the gastric-bypass group who achieved the primary end point did so without the use of any medication, whereas 28 % in the sleeve-gastrectomy group required the use of one or more glucose-lowering drugs. There was a large and rapid improvement, by 3 months, in levels of HbA1c and fasting plasma glucose after each of the surgical interventions. This improvement was sustained over the year of observation with reduced hypoglycemic medication use. In contrast, patients receiving medical therapy alone had a smaller and more gradual improvement in glycemic control with some attenuation observed over the final 6 months, despite an increase in the use of hypoglycemic medications. The use of drugs to lower glucose, lipid, and blood pressure levels decreased significantly after both surgical procedures but increased in patients receiving medical therapy only. At the end of 12 months, insulin use declined to 4 % in the gastricbypass group and to 8 % in the sleeve-gastrectomy group but remained high (38 %) in the medical-therapy group. Which of the following conditions is most likely improved by the possible mechanism of reducing inflammatory cytokines post-gastrointestinal surgery Metabolic surgery to treat type 2 diabetes: clinical outcomes and mechanisms of action. Lifestyle, diabetes and cardiovascular risk factors 10 years after bariatric surgery. Although medical therapy has rapidly advanced in recent years, the majority of patients still fail to attain treatment goals even with the combination of the most innovative and effective medical therapies. The outcomes of metabolic surgery suggest that it is a viable alternative to medical treatment in patients who are not adequately managed by lifestyle modification and optimal pharmacotherapy. Most importantly, there is a survival benefit demonstrated from performing metabolic surgery in obese individuals. Changes in lipid profile and insulin resistance in obese patients after Scopinaro biliopancreatic diversion. Resolution of hyperlipidemia follows surgical weight loss in patients undergoing Roux-en-Y gastric bypass surgery: a 6-year analysis of data. Specific effects of biliopancreatic diversion on the major components of metabolic syndrome. Obstructive sleep apnoea is independently associated with an increased prevalence of metabolic syndrome. Effects of surgical weight loss on measures of obstructive sleep apnea: a meta-analysis. Adjustable gastric banding and conventional therapy for type 2 diabetes: a randomized controlled trial. Part V Specific Considerations Management of the Gallbladder Before and After Bariatric Surgery Rohini Khatri, Sayeed Ikramuddin, and Daniel Leslie 32 Chapter Objectives 1.

Discount pirfenex 200 mg on-line. Physical Symptoms You May Experience After You Quit Smoking.

These few pilot studies suggest that currently designed lifestyle interventions are modestly effective in enhancing further weight loss among post-bariatric surgery patients 86 treatment ideas practical strategies cheap pirfenex 200mg without prescription. Multiple factors appear to influence outcome results medications education plans pirfenex 200mg purchase without prescription, including patient selection medicine news purchase pirfenex without prescription, timing and intensity of the intervention medicine 524 order pirfenex 200mg otc, comprehensiveness of counseling provided symptoms stiff neck buy generic pirfenex 200mg line, and selection of outcome measurements. Furthermore, the influence of other determinants of weight loss or weight regain (discussed earlier) may need to be addressed. Psychological Counseling and Peer Support in the Postoperative Period Data suggest that patients with postoperative depression experience poorer weight loss than those who are not depressed. Similarly, postoperative patients who exhibit disordered eating patterns, such as grazing and loss of control over eating, have poorer weight loss and greater weight regain [10, 36]. Patients who are found to have mood disorders, disordered eating behavior, or substance abuse after bariatric surgery should be offered professional psychological counseling and support. It is not known, however, whether such treatment improves weight loss or other outcomes. For unclear reasons, patients who exhibit disordered eating patterns may be more receptive to a behavioral intervention after surgery than before surgery. In one small nonrandomized prospective study, preoperative and postoperative bariatric surgical patients with binge eating or other disordered eating patterns were referred to a 10-week cognitive behavioral therapy program designed to address and improve the maladaptive eating patterns. Patients who were referred to the program postoperatively were much more likely to attend the initial session and to complete the program than patients referred preoperatively. In epidemiologic studies, attendance at postoperative support groups is associated with improved weight loss outcomes [51, 52]. There is a lack of data regarding the effects of other types of postoperative psychological support, such as group or individual therapy, on weight loss and other outcomes. Webb Pharmacotherapy There are no published studies describing the use of adjunctive pharmacotherapy for management of weight regain following bariatric surgery. This is due, in part, to a paucity of anti-obesity medication available and the prevailing paradigm of not combining surgical and pharmacologic modalities for treatment. Refer to a health psychologist for counseling and support and a registered dietitian for education on healthy eating patterns. Conclusion the incidence of weight regain following bariatric surgery is not well defined. However, the current literature suggests that a significant percentage of patients will experience regain beginning several years following surgery. There are multiple determinants of weight regain that include biological, surgical, behavioral, social, and psychological factors. Patients who present with significant weight regain following bariatric surgery should undergo a comprehensive evaluation for determination of remedial factors. Additional clinical research is needed to further delineate this long-term postoperative problem. Long-term impact of bariatric surgery on body weight, comorbidities, and nutritional status. Swedish obese subjects study: effects of bariatric surgery on mortality in Swedish obese subjects. Weight gain after short and long limb gastric bypass in patients followed for longer than 10 years. A prospective randomized trial of laparoscopic gastric bypass versus laparoscopic adjustable gastric banding for the treatment of morbid obesity. Maladaptive eating patterns, quality of life, and weight outcomes following gastric bypass: results of an internet survey. Reasons and outcomes of reoperative bariatric surgery for failed and complicated procedures (excluding adjustable and gastric banding). Indications, safety, and feasibility of conversion of Question and Answer Section Questions 1. Cross-sectional data from the literature suggests that weight regain after bariatric surgery occurs in what percentage of patients Current medications include omeprazole/sodium bicarbonate, sertraline, and a multivitamin-mineral supplement. Which 21 Medical Approach to a Patient with Postoperative Weight Regain failed bariatric surgery to Roux-en-Y gastric bypass: a retrospective comparative study with primary laparoscopic Roux-en Y gastric bypass. Roux-en-y-gastric bypass and laparoscopic sleeve gastrectomy; understanding weight loss and improvements in type 2 diabetes after bariatric surgery. Excessive gestational weight gain and postpartum weight retention among obese women. Associations of excess weight gain during pregnancy with long-term maternal overweight and obesity: evidence from 21 y postpartum follow-up. Pregnancy outcome of patients who conceive during or after the first year following bariatric surgery. Increased visceral fat and decreased energy expenditure during the menopausal transition. Safety of low dose glucocorticoid treatment in rheumatoid arthritis: published evidence and prospective trial data. History of smoking and post cessation weight gain among weight loss surgery candidates. Fierabracci P, Pinchera A, Martinelli S, Scartabelli G, Salvetti G, Giannetti M, et al. Prevalence of endocrine diseases in morbidly obese patients scheduled for bariatric surgery; beyond diabetes. Prevalence of doctordiagnosed arthritis and arthritis-attributable activity limitation- United States, 2007­2009. The benefits of bariatric surgery in obese patients with hip and knee osteoarthritis: a systematic review. Loss of control over eating reflects eating disturbances and general psychopathology. Grazing and loss of control related to eating: two high risk factors following bariatric surgery. Preventing weight regain after bariatric surgery: an overview of lifestyle and psychosocial modulators. Physical activity after surgery for severe obesity: the role of exercise cognitions. Pre- to postoperative physical activity changes in bariatric surgery patients: self report vs. Physical activity in gastric bypass patients: associations with weight loss and psychosocial functioning at 12-month follow-up. Impact of routine and long term follow up on weight loss after laparoscopic gastric bypass. Food quality, physical activity, and nutritional follow-up as determinants of weight regain after Roux-en-Y gastric bypass. Physical fitness in morbidly obese patients: effect of gastric bypass surgery and exercise training. Changes in functional walking distance and health related quality of life after gastric bypass surgery. A pilot study investigating the efficacy of postoperative dietary counseling to improve outcomes after bariatric surgery. Discuss the importance of habitual physical activity in relation to health outcomes, weight loss, and weight loss maintenance. Review evidence regarding the role of physical activity in bariatric surgery outcomes. Describe the physical activity patterns of preoperative and postoperative patients. Explain how to formulate an appropriate physical activity prescription and apply behavioral counseling strategies to facilitate patient engagement in habitual physical activity preoperatively and postoperatively. King exercise performed during "free" time and involving elements of personal choice, enjoyment, etc. It is important to note that some health benefits can still be obtained through being physically active even with little or no related gains in fitness [1]. The intensity of activities can be viewed along a continuum with sedentary activities at the lowest end of the continuum and vigorous-intensity activities at the highest end [7]. Sedentary activities are waking behaviors performed in a sitting or reclining posture. However, due to carrying extra weight, and potentially a lack of fitness, severely obese individuals may achieve moderate-intensity walking at 1. Other examples of activities that may be done at moderate intensity include low-impact aerobics, weight lifting, doubles tennis, house painting, and packing boxes. Examples of activities that may be done at vigorous intensity include jogging, swimming laps, singles tennis, biking, and lifting heavy loads. Relative intensity methods assess the level of effort involved in performing a specific exercise or activity. Precise measurement of the relative intensity of a specific exercise or activity involves use of objective physiological indicators, such as heart rate. For example, engagement in brisk walking or another moderate-intensity exercise would be indicated when a patient can talk, but cannot carry on a full conversation or sing. The intensity of a given activity can also be classified based on absolute intensity. Thus, when communicating with patients, it is important to help them understand that they should pay attention to physiological sensations and potentially use a couple of methods. While there is a dose­response relationship 22 the Role of Physical Activity in Optimizing Bariatric Surgery Outcomes 219 Table 22. Less rigorous preoperative recommendations have been made by the 2007 Expert Panel on Weight Loss Surgery [12] as well as the American Heart Association [13] to improve cardiorespiratory fitness, reduce risk of surgical complications, facilitate healing, and enhance postoperative recovery. Four different types of activity monitors have been employed in this area of research: pedometers, accelerometers, step activity monitors, and multisensor devices. Pedometers are small, relatively inexpensive devices worn on the hip that estimate the number of steps taken and distance traveled typically via an internal spring lever that responds to vertical motion of the hips during walking, jogging, and running activity. Newer pedometers use an electronic sensor to detect motion, and some provide additional capabilities such as calculation of energy expenditure and positioning via global positioning system satellite networks. Accelerometers are small, batteryoperated devices typically worn on the waist that employ microelectronic sensors to continuously record minute-byminute changes in velocity across multiple planes of movement (vertical, anteroposterior, and lateral planes). Data are used to estimate time spent in different intensities of physical activity and sedentary behaviors during waking hours. While the cost for high-quality activity monitors, burden of retrieving monitors from participants, and required technical expertise to process the data have prohibited their use in many studies, there is a growing body of literature with activity monitor use. Participants were randomized to either usual care or 12 weeks of aerobic and strength-building exercises with a personal trainer for 45 min/3 times a week. Those in the exercise group had better excess weight loss (37 %) and change in percentage body fat (3. Together these studies suggest that many postoperative patients do not take advantage of the weight loss maintenance benefits of exercise. However, all of the reviewed studies were observational and many were cross-sectional. Thirty-three postoperative patients were randomized to 12 weeks of either high-volume exercise + dietary counseling (n = 21) or dietary counseling alone (n = 12). Over the first 4 weeks of the program, participants in the exercise + diet group were progressed to expending 2,000 kcal/week via moderate-intensity exercise on 5 or more days of the week. Preoperative Levels of Physical Activity and Sedentary Behaviors Two studies using pedometers found that preoperative patients averaged 4,621 ± 3,701 [30] and 6,061 ± 2,740 [20] steps/day respectively, thereby placing most patients in the sedentary (<5,000 steps/day) or "low active" (5,000­7,499 steps/day) categories [31]. Studies using more accurate step activity monitors and accelerometers address many of the aforementioned limitations associated with pedometers. Participants (n = 757) averaged 7,569 ± 3,159 steps/ day, higher than reported in the aforementioned pedometer studies, although more than half of the sample was either categorized as sedentary or low active. Bond and colleagues [34] also used the multisensor SenseWear Pro Armband to assess the amount of time that preoperative patients spend in sedentary behaviors, defined as percentage of time spent performing activities <1. Participants, on average, were sedentary during the vast majority (79­81 %) of their waking time, a percentage much higher than that observed in the general adult population (57 %). However, recent work 22 the Role of Physical Activity in Optimizing Bariatric Surgery Outcomes 223 conducted by Bond et al. By contrast, at 6 months postoperatively, 55 % reported meeting this recommendation compared to 5 % according to the objective measure. Thus, addressing exercise barriers preoperatively may help patients establish healthy exercise attitudes and develop effective coping strategies that carry over into the postoperative period. Traditionally, the three modes of activities that comprise a balanced exercise prescription include: (1) aerobic or endurance activities that are repetitive and increase breathing and heart rate over an extended period of time. Implementing a prescription that integrates all of these activities may overwhelm preoperative patients, however, who tend to be novice exercisers. Consequently, it is appropriate to begin by focusing on aerobic exercises, which provide the greatest health benefits. Prescribing exercise in shorter bouts may serve as an efficacious strategy to counter barriers such as inadequate fitness level and perceived lack of time. King long bout or several shorter bouts is planned, encouraging patients to find consistent times to exercise on a daily basis may better help to establish this behavior as a habit. While these activities are typically of shorter duration and thus may not contribute to improvements in endurance, they can reduce the amount of time spent being sedentary, increase overall energy expenditure, and possibly improve mobility, strength, and balance. Finally, similar to the prescribed preoperative regimen, patients should continue to focus on increasing their lifestyle activity and decreasing sedentary behaviors [4, 15]. Common barriers reported by adults include lack of time, childcare, and safe and affordable facilities or outdoor environments. For example, they may lack confidence to go to a gym or fitness facility because they are unable to keep up in regular group exercise classes, they are too heavy to use much of the equipment and/or do not know how to use it, or they are simply too embarrassed to exercise in front of others.

Program policies and procedures as well as clinical pathways will maintain consistency of care and clarity to both the patient and team members of the preoperative and postoperative continuum care plan symptoms of dehydration effective pirfenex 200mg. Clinical pathways should be designed by the team to ensure best practice shinee symptoms mp3 pirfenex 200 mg free shipping, optimal patient outcomes treatment 1st degree av block purchase pirfenex with a visa, and decreased legal liability [13 medicine reviews pirfenex 200 mg purchase without a prescription, 35] medications you cant drink alcohol with pirfenex 200mg order mastercard. Clinical excellence and working collaboratively should be the core requirement for each team member. Therefore, the program should have an infrastructure to support comprehensive, collaborative longitudinal care following bariatric surgery. Regularly scheduled team meetings will encourage collaboration, communication, quality improvement, and program development. Early on as a new program gets started, team meetings can keep individuals accountable for the development of the program. This includes everything from equipment needs, education requirements, staff development, policy and procedure implementation, and patient education protocols. Bariatric team meetings should include professionals who represent disciplines and departments that the patient normally interacts with during their operative experience. These members often include: medical director, program director or coordinator, clinical unit manager, behavioral health, nutritionist or registered dietician, exercise coordinator, administration representative, quality assurance coordinator, and a nursing educator. The benefit of regularly scheduled team meetings in a mature program is to allow a timely and efficient response when issues arise. Ongoing team meetings must encourage evaluation of current program practices, protocols, pathways, and policies and assess a need for change if necessary. Quality improvement should be based on both the individual program outcome data and published studies. Always keep the team focused on patient satisfaction, patient safety, and optimal outcomes. Ongoing quality assessment and improvement will help identify real or potential risks and implement a plan to minimize risk and adverse outcomes. Detailed minutes with a list of agreed upon action items and assigned responsibility for follow-up will promote ongoing positive development and momentum of the program. Staff Development and Education Surgeons performing bariatric and metabolic surgery today are expected to have specific surgical training. Each team member must be specifically trained to support the patient pre-, peri-, and postoperatively. The current expectation, both publically and professionally, is that each of the integrated team 188 T. Martinez members acquires in-depth expertise beyond their basic professional education requirements prior to caring for this clinically challenging patient population. All team members are obliged to understand and be fully competent in their scope of practice. Possessing in-depth knowledge of the disease of morbid obesity and surgical intervention, clinical assessment skills, lab surveillance, competence in both long-term and short-term complication recognition, and compassion will help the patient through a safe surgical intervention and beyond. These domains are "cognitive skills," which means the ability to analyze and utilize critical thinking; psychomotor skills that demonstrate the ability to perform physical tasks necessary to do the job-in other words "technical skills"; and lastly "interpersonal skills," which demonstrate the ability to work as an integral part of an interdisciplinary team. Patient Education the goal of each team member should be their commitment to utilize their expertise within their discipline to optimize patient outcomes. This goal is achieved through patient selection and preoperative preparation and astute clinical assessment preoperatively and in long-term postoperative follow-up. Educating bariatric surgical patients is the obligation of the multidisciplinary staff. Each member of the team should be dedicated to convey his or her expertise to the bariatric patient. Each patient needs to understand that morbid obesity is a chronic disease, one for which we have no cure. It is equally important that the patient has a clear understanding that lifelong treatment and lifelong follow-up are required. Learning to utilize the tool appropriately can help them change their relationship with food, exercise, and improving overall health. Like any chronic disease, lifelong attention and ongoing effort is imperative to keep morbid obesity under control with weight loss and weight maintenance. All team members should standardize education objectives and document that it has been done. Often group classes can be more stimulating for the patient as they interact with others as well as efficient for the staff. Currently, more hospitals who perform bariatric surgery are implementing bariatric nursing competencies. Competencies for bariatric nurses should address the unique knowledge base that a bariatric nurse should possess. These include: · In-depth knowledge of the disease of morbid obesity · Comorbidities and how they may increase the risk of complications · In-depth anatomical changes following the bariatric procedures performed at their specific institution · Symptoms of complications (both the obvious and subtle) · Nutritional support and guidelines · Long-term expected results and complications · Last, but not least, empathy awareness There is not one way to assess competency. These include true/false test questions, multiple choice questions, and case studies with priority action questions. It is essential that patients not only understand what to do but also understand why it is important (Table 19. For example, a patient must understand that after undergoing gastric bypass, B12 supplementation is required for life. They must also be educated that noncompliance with B12 supplementation can lead to neuropathy that may be permanent. Support Group One of the many misunderstandings about those who suffer from the disease of morbid obesity is that they have an excessive percentage of psychological illness. On the contrary, studies of severely overweight persons conducted before seeking treatment have shown that there is no single personality type that characterizes the severely obese [37]. Often society shows the ignorant belief that if a patient ate less and exercised more, then they could control their weight. Nonsurgical weight management does not demonstrate sustained weight loss long-term in those suffering from severe obesity [38]. Twin studies show that two-thirds of the variation in body weight can be attributed to genetic factors [39]. The psychological aspects due to the bias of this disease are as important as the more publicized major medical comorbid conditions when one considers the quality of life of the severely obese [40]. Martinez Successful support groups should provide ongoing education and support for this unique peer group. In addition, most importantly, support group meetings should create a safe and empathetic environment to help individuals through their journey. If your support group is created with this in mind, your patients will be more likely to return and successfully continue along their postoperative path while maximizing their own success potential. The Purpose of a Support Group Patients who attend a support group regularly have better postoperative success [41]. There are numerous reasons why support groups are conducted in bariatric programs. One is to educate the prospective patient on the postoperative lifestyle as they interact with postoperative patients. The preoperative patient who attends a support group prior to surgery may have a significant advantage because they are in a less stressful environment to absorb information. Having patients attend support groups preoperatively is another aspect of the numerous ways in which informed consent may be provided. For this reason, some programs make attendance mandatory for the preoperative patient. Secondarily, many patients with severe obesity present to the program with a sense of shame and guilt from years of failed dieting. It is not uncommon for this population to put their needs on hold-commonly doing for others to gain acceptance while neglecting their own requirements. This environment can facilitate learning if the patient feels understood and comfortable. As previously mentioned, many practitioners in the field of bariatrics call bariatric surgery a "tool": teaching the patient to utilize their "tool" to maximize their individual postoperative success. The educational opportunities offered in a support group gives patients the knowledge they need to take ownership of their decision to have surgery to treat their obesity and enables them to take ownership of their necessary lifestyle changes. Being immersed in a group of peers with common life struggles, with the chronic disease of morbid obesity, creates an environment of knowledge, empowerment, and self-responsibility. Thirdly, educational needs change from the acute postoperative patient (0­12 months) to the more advanced patient of 12 months or longer. Commonly seen needs of the acute patient are food advancement and intolerances and the importance of protein intake and vitamin supplementation. Other educational needs include mobility and the role of exercise (in particular resistance training for prevention of muscle mass loss), body image challenges, hair loss, and criticism from others for the decision to have surgery. Commonly, patients express a fear that surgery will not be successful, having failed at every other attempt at weight loss. After approximately 1 year after bariatric surgery, education and support needs change. Because of the distinct difference in needs of the acute patient versus the over 1 year patient, one might consider having two separate support group meetings (0­12 months and over 12 months) in order to meet the needs of the patients in the two postoperative phases. The vast concerns and issues previously mentioned demonstrate the value in the multidisciplinary approach in a support group. Many patients have limited friends, dating is less common, and there is research documenting employment discriminations as well as reduced acceptance to major colleges [42]. The burden of failure and shame is lightened, therefore, creating an environment that potentiates self-confidence and self-worth. Another purpose for a support group is for the long-term postoperative patient to get "back on track. Sometimes postoperative patients feel bulletproof for 1, 2, and even 3 years, only to rediscover that surgery really is only a powerful tool. When a patient returns to the program with the chief complaint of weight gain, it is important to reemphasize the postoperative guidelines of nutrition, vitamin supplementation, and the role of exercise and education. Encouraging these patients to return to a support group can be very effective at helping them lose their regained weight and reestablish the importance of ongoing follow-up. The patient must accept the fact that maintaining weight loss is an ongoing, lifetime commitment and effort. Patients should be congratulated on taking responsibility for reaching out for the necessary support. The program should 19 the Importance of a Multidisciplinary Team Approach 191 provide the opportunity to get them back on track in the continuum of care pathway. It is essential that the facilitator be a well-trained professional who represents the surgeon and the program with a unified mission, in other words, an arm of the program. The leader should have training or experience in group facilitation and be capable of creating a constant format for the meeting-providing a compassionate and empathetic environment that enables the patient to feel comfortable. The psychologist, registered nurse, registered dietician, and surgeon can be equally successful and effective. However, they should possess basic characteristics of a qualified group facilitator. The Four Phases There are some common characteristics observed in bariatric patients, in my experience. The support group facilitator should have some insight into these phases in order to best understand the group dynamics. I break them up into four phases commonly exhibited in various stages from the preoperative period and years after surgery: 1. The "Hope Phase" this phase consists of patients who decided to have surgery and are preparing for it. They are extremely optimistic and are commonly full of questions for the group participants. They are, often for the first time in their life, surrounded by a group of individuals who understand their plight, sense of guilt, defeat, and hopelessness. The veterans in the group will eagerly share their experiences and give advice and encouragement. It is important the facilitator not allow the patient to monopolize the meeting, allowing others to speak and voice their questions, concerns, and opinions. This is when it would be appropriate to encourage that patient to attend an informal seminar or consult in order to gain basic knowledge about surgery. It is important for preoperative patients to have the opportunity to interact with postoperative patients as part of the in-depth and multifaceted consent. The "Honeymoon Phase" this phase often occurs in month 1 through 12 following bariatric surgery. This is the time when patients often, for the first time, experience a sense of satiety. Commonly, depending on the type of procedure performed, patients may even experience minimal to no hunger. In addition, stressing that compliance with the program guidelines including nutrition, supplementation and physical exercise is imperative. Equally important is stressing that lifestyle changes are imperative for longterm control of severe obesity and resolved related medical conditions. One of the most common and fearful experiences shared by patients in this phase is when active hunger returns and dietary consumption increases. They can obsess about every food eaten, often weighing themselves several times a day. Commonly, this group of patients requires reassurance that their sensations have been experienced by others. Postoperative patients will add their experiences of going through this phase as well.

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