Branden D. Nemecek, PharmD, BCPS

• Assistant Professor, Department of Pharmacy Practice, Mylan School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania

https://www.duq.edu/academics/faculty/branden-nemecek

Examination of the face After completion of the primary survey treatment diffusion order generic lovegra online, the face is examined for areas of swelling and tenderness that can indicate underlying fractures treatment vertigo lovegra 100mg purchase fast delivery. Palpation of the facial bones for crepitus or abnormal motion can locate a fracture medicine for yeast infection lovegra 100mg order with visa. Grasping the teeth and pulling forward can demonstrate Le Fort fractures with abnormal motion of the alveolar ridge medications journal order lovegra mastercard, midface treatment 0 rapid linear progression purchase 100mg lovegra mastercard, or whole face. Blind clamping of bleeding sites is dangerous in that it can injure nerves and other structures that run in proximity to vessels. Facial asymmetry can be due to direct trauma but also to facial nerve injury, and an assessment of the muscles of facial expression and facial sensation is made. Examination of the eye Anatomically, the orbit sits relatively protected by the orbital ridge, the malar prominence, and nose. The ciliary and corneal reflexes rapidly close the eyelid adding further protection to direct contact with the globe. Victims of motor vehicle crashes often have fragments of glass that can become embedded in the eye causing lacerations or corneal abrasions. Often patients have massive soft tissue swelling around the eye that makes examination difficult. In these cases devices to hold the eyelid open must be used and can be improvised by bending paperclips in to blunt retractors and gently retracting the lids. Formal measurement of visual acuity may not be possible in the early phases of resuscitation but an initial estimate of vision can be made by having the patient count fingers or report light perception. Complete loss of vision in a previously normal eye requires immediate consultation with an ophthalmologist. The conjunctivae are assessed for foreign bodies and chemosis that can indicate rupture of the globe. A "peaked" pupil is highly suspicious for rupture of the globe, and the "peak" often points to the site of rupture. The position of the globe in the orbit is noted for enophthalmos (blowout fracture) or exophthalmos (retro-orbital hematoma). Inability to perform all extraocular movements may indicate a brain lesion, cranial nerve injury, or entrapment of extraocular muscles. Lacerations involving the lacrimal duct and lid margins should be noted and referred to an ophthalmologist for repair. A brief fundoscopic exam is performed to assess the position of the lens and the presence of blood in the anterior chamber (hyphema) or retina. Examination of the nose the nose is inspected for lacerations of overlying skin and of the cartilage. The presence of nasal fracture is often obvious clinically with deformity, crepitus, epistaxis, and tenderness to palpation. Examination of the mouth the mouth is inspected for lacerations, avulsion or fracture of teeth, swelling of the tongue and oral mucosa, and misalignment of the teeth (indicating a mandible or maxilla fracture). Simultaneously, an evaluation of the airway is made examining for stridor, dysphonia, gagging or drooling, and inability to handle oral secretions. The presence or absence of a gag reflex in obtunded patients often influences the decision to intubate the patient to protect against aspiration. Certain radiographic views are indicated to clarify specific clinical findings such as a submentovertex view to detect zygomatic arch fracture or Panorex views for suspected mandible fractures. Suspicion of injury to the lacrimal duct is best confirmed by an ophthalmologist using fine probes. A detailed evaluation of the anterior chamber can be performed on stable patients using a slit lamp examination. Patients with suspected posttraumatic glaucoma or retro-orbital hematoma should undergo tonometry to measure the intraocular pressure, but this test should never be done if there is a possibility of a ruptured globe. Parotid duct laceration can be demonstrated by probing the duct or by performing a sialogram. Examination of the ear the ear is inspected for the presence of lacerations or hematoma. The tympanic membrane is examined for perforations or accumulation of blood in the middle ear that is seen as hemotympanum. Facial Injury 31 General Management Airway management is of prime importance when facial injuries threaten the ability to ventilate the patient. Suction of secretions and manual removal of foreign bodies may establish airway patency, but often endotracheal intubation is indicated. Nasotracheal intubation should not be attempted with nasal, basilar skull, or Le Fort fractures or in apneic patients. Patients with massive facial injuries present a special problem, and the management of the airway in these cases is controversial. Consequently, some advocate the use of awake orotracheal intubation in these cases. This is a difficult and often unsuccessful task in an agitated, possibly hypoxic patient with severe bleeding in the oropharynx. Others have demonstrated the safety and efficacy of using rapid sequence intubation with paralytic drugs in this setting. The decision on the method of intubation should be based on the experience of the physician and the facilities of the emergency room. In selected cases in no need of immediate airway establishment, awake fiberoptic intubation by an experienced anesthesiologist or otolaryngologist is an excellent alternative. In all cases a physician should be immediately available to perform a cricothyroidotomy, if conventional intubation fails. Massive facial injuries that distort anatomic landmarks and produce severe bleeding may make orotracheal intubation impossible. Prolonged attempts at intubation are detrimental to the patient, and early use of cricothyroidotomy is essential and often life-saving. Facial injuries that do not threaten the airway can safely be deferred to the secondary survey and definitive care phases of trauma management. Active bleeding can usually be controlled by direct pressure or packing of wounds. However, prolonged bleeding from facial or scalp wounds can result in hemorrhagic shock and should not be ignored. Treatment of facial fractures can be deferred until the patient is hemodynamically stable. Once the possibility of a ruptured globe has been established, the eye should be protected by use of a Fox shield or similar device to prevent further pressure on the globe. Retro-orbital accumulation of blood or air with deteriorating vision or massive elevation of intraocular pressure requires decompression by lateral canthotomy or creation of a communication from the retro-orbital space in to the maxillary sinus. Penetrating trauma of the ear is relatively uncommon and is managed by minimal debridement, irrigation, and primary closure. Blunt trauma is more common and often results in perichondrial hematoma formation. Because ear cartilage is dependent on its skin covering for blood supply, an interposed hematoma can result in ischemic necrosis of the cartilage. Consequently, the ear must be examined for this condition, and a hematoma should be aspirated. A pressure dressing is applied to prevent reaccumulation of the hematoma or abscess formation. Avulsed cartilage from the ear or nose should be preserved in saline, as it is difficult to recreate the shape of these organs with other tissues. Most facial fractures can be repaired electively with operative fixation and bone grafting if necessary. Antibiotics are unnecessary for most facial lacerations, although open fractures require prophylactic coverage. Severe oromaxillofacial trauma can produce delayed airway occlusion from swelling or bleeding. These patients should be intubated early or observed carefully in a monitored environment. Attempts to perform endotracheal intubation in the presence of extensive facial trauma, without being prepared to perform a cricothyroidotomy, if intubation fails. Blind clamping of bleeding sites is rarely successful and it can injure nerves and other structures that run in proximity to vessels. Injury to the cranial nerves is difficult to detect in severely injured patients, especially if they are comatose, intoxicated, or otherwise unable to cooperate with physical examination. Other causes are scraping by branches or twigs, broken glass, industrial injuries involving power grinders and saws, or welding without adequate eye protection. Clinically, the patient presents with a history of sudden onset of pain in the affected eye and the sensation of having a foreign body in the eye, with increased tearing and resultant blurred vision. If the patient is capable of sitting, ideally the examination should be with a slit lamp. The patient will experience complete relief of the pain after instillation of anesthetic drops on to the affected cornea. The use of eye patches is controversial but generally considered unnecessary for small abrasions. Ocular Foreign Bodies There are certain situations that merit special caution in dealing with apparent corneal abrasions. Patients who present with symptoms of corneal abrasion after high-speed grinding or hammering on metal should be suspected of having a perforated globe. Small fragments of metal can enter the eye at high speed, leaving only minimal evidence of their entry in to the globe. A metal foreign body that impacts the cornea at lower speed may become embedded in the cornea and produce a rust ring that can impair vision if it occurs in the visual axis. These should be removed electively after 1­2 days, when they are less adherent to the cornea. A retained wood foreign body is also important to detect, as fungal enophthalmitis can result. With the patient lying supine, the blood is less visible than in an upright position, when it forms a clearly visible layer of blood in the dependent portion of the anterior chamber. However, in up to one-third of cases rebleeding will occur 2­5 days after the initial injury. Complications from hyphema include hemosiderin staining of the inner surface of the cornea with resulting loss of vision, as well as posttraumatic glaucoma due to fibrotic occlusion of the canals of Schlemm. Treatment is conservative and consists of bed rest with head elevated, sedation, and monitoring of intraocular pressure. Surgery is required occasionally for evacuation of blood or to decompress the anterior chamber. This rust ring is in the visual axis and will seriously impair vision if not removed. C Ruptured Globe Rupture of the globe usually occurs after penetrating injury but can be caused by blunt trauma as well. Penetration of the sclera results in herniation of orbital contents through the wound and exposure of the choroid membrane, visible as a dark layer of tissue in the wound. In either case, distortion of the globe results in loss of functional vision at the time of injury although light perception may be preserved. The latter is performed by instilling fluorescein dye in to the conjunctiva and observing the dye clearing from the cornea or sclera in the area of rupture because of the flow of aqueous humor from the anterior chamber. Although intraocular pressure is reduced in the presence of a ruptured globe, tonometry or any other maneuver that increases pressure on the globe is contraindicated. The conjunctiva is very distensible and often becomes edematous after trauma, resulting in bulging chemosis which frequently limits complete examination. Because of its common association with rupture of the globe, bulging chemosis itself should be considered a sign of possible ruptured globe. The ruptured globe is commonly enucleated if sight cannot be restored to avoid development of a sympathetic ophthalmoplegia in the normal eye. Retrobulbar Hematoma Trauma to the globe can result in bleeding from retroorbital vessels including the ophthalmic artery and vein. In addition, fractures of the orbit that communicate with paranasal sinuses can result in the accumulation of air in the retro-orbital space. If air or blood accumulates under sufficient pressure, ischemic necrosis of the optic nerve can occur. Clinical evidence of this condition includes proptosis, impaired extraocular movements, and progressive loss of vision. Treatment of a symptomatic retrobulbar hematoma is by lateral canthotomy or by surgically perforating the floor of the orbit to allow decompression of the retrobulbar space. In a lateral canthotomy, the lateral canthal ligaments are grasped with a forceps and crushed. Iris scissors are then used to divide the ligament, allowing the globe to protrude forward. Allowing the eye to protrude further decreases the retrobulbar pressure on the optic nerve. C 36 Facial Injury manner, normal vision can be restored once the globe is repositioned and the canthal ligament is repaired. Patients experience diplopia after repair of a lateral canthotomy but the brain gradually adapts and restores normal binocular vision over a period of months. Alternatively, a forceps can be introduced beneath the globe and the floor of the orbit fractured to allow drainage of the retro-orbital space in to the maxillary sinus. The lacrimal system ensures that a constant flow of tears stream across the surface of the eye, maintaining lubrication to facilitate ocular motion, preventing desiccation, and clearing debris, including potential infectious agents. Lacerations involving the lacrimal apparatus, lid margins, and lacrimal duct must all be sought out and referred to an ophthalmologist for repair.

Preparations Tablets medications containing sulfa lovegra 100 mg order fast delivery, short-acting (isosorbide dinitrate): 5 treatment quadratus lumborum buy lovegra online pills, 10 symptoms pneumonia buy 100mg lovegra amex, 20 symptoms 20 weeks pregnant cheap lovegra 100mg buy on line, 30 mg Tablets treatment xdr tb lovegra 100mg purchase amex, short-acting (Isordil Titradose, Sorbitrate): 5, 10, 20, 30, 40 mg Tablets, sublingual (isosorbide dinitrate, Isordil): 2. Note: A daily nitrate-free interval of at least 14 h has been recommended to minimize tolerance. The optimal nitrate-free interval may vary among different patients, doses, and regimens. Sublingual and chewable tablets (isosorbide dinitrate, Isordil, Sorbitrate: the usual initial dose is 2. Dosage may be titrated upward until angina is relieved or until dose-related adverse effects occur. An initial dose of 5 mg twice daily may be appropriate for persons of small stature; dosage should be increased to at least 10 mg by the second or third day of therapy. Extended-release tablets (isosorbide mononitrate, Imdur) Initiate at 30 or 60 mg once daily. If pain persists, patient should notify physician or get to the emergency department immediately. Sublingual tablets may also be used prophylactically 5-10 min prior to activities that might trigger an acute attack. Translingual spray (Nitrolingual PumpSpray) At the onset of an attack, spray one to two metered doses on to or under the tongue. Translingual spray may also be used prophylactically 5-10 min prior to activities that might trigger an acute attack. Dosage may be titrated upward to an effective dose or until dose-related adverse effects occur. Tolerance may develop when nitroglycerin is administered without a nitrate-free interval. Note: Any regimen of nitroglycerin ointment administration should include a daily nitrate-free interval of 9. Minoxidil (minoxidil, Loniten) Indications Severe hypertension (oral formulation) Male pattern baldness of the vertex of the scalp (topical formulation) Dosage Adults Oral formulation Initiate therapy at 5 mg once daily; dosage may be increased by 10 mg at intervals of £ 3 days as needed. Topical formulation Apply 1 mL to affected areas of the scalp twice daily (morning and night). Children Safety and effectiveness have not been established; however, there is experience with the use of minoxidil in children for the treatment of severe hypertension. Nitroglycerin (Various sources) Indications Prevention of angina (oral sustained-release tablets and capsules, transdermal system) Prevention and treatment of angina (sublingual tablets, translingual spray, topical ointment) Control of blood pressure in perioperative hypertension (intravenous formulation) Congestive heart failure associated with acute myocardial infarction (intravenous formulation) Angina unresponsive to recommended doses of organic nitrates or beta-blockers (intravenous formulation) Controlled hypotension during surgical procedures (intravenous formulation) Dosage Adults Sublingual tablets (Nitrostat) Dissolve one tablet under the tongue or in the buccal pouch at first sign of an acute anginal attack. To apply the ointment using the dose-measuring paper applicator, place the applicator on a flat surface, printed side down. Squeeze the necessary amount of ointment from the tube on to the applicator, place the applicator (ointment side down) on the desired area of skin (usually on nonhairy skin of chest or back), and tape the applicator in to place. Transdermal Systems (Nitroglycerin Transdermal, Minitran, Nitro-Dur) Initiate therapy with a 0. Patch should be applied on to clean, dry, hairless skin of chest, inner upper arm, or shoulder. Dosage may be increased beyond 20 g/min by 10 g/min increments at 3- to 5-minute intervals, then by 20 g/min increments until desired effect is achieved. Reduce dosage increments and frequency of dosage increments as partial effects are noted. Continuously monitor physiologic parameters such as blood pressure and heart rate and other measurements, such as pulmonary capillary wedge pressure, to achieve accurate dose. Note: It is uncertain if effective plasma concentrations are maintained for 12 h with extended-release preparations. In the past, the Food and Drug Administration has recommended that papaverine products be withdrawn from the market. Parenteral administration Papaverine may be administered intramuscularly or by slow intravenous injection over a period of 1-2 min. The usual parenteral dose is 30 mg; however, a dosage of 30-120 mg may be repeated q 3 h as needed. Although therapeutic effects may be observed within 2-4 weeks, continue treatment for 8 weeks. Preparations Pentoxifylline (generic): 400 mg extended-release tablets Pentoxil (Upsher-Smith): 400 mg extended-release tablets Trental (Aventis): 400 mg extended-release tablets Elderly Use usual dose with caution. Children Appropriate studies have not been performed; however, pediatrics-specific problems that would limit the usefulness of this agent in children are not expected. Preparations Sodium nitroprusside (generic); Nitropress (Abbott): 50 mg per vial, powder for injection 14. Transition from epoprostenol the recommended initial treprostinil dose is 10% of the current epoprostenol dose. Increase individualized dosage as epoprostenol dose is decreased, based on constant observation of response. Nitroprusside (sodium nitroprusside, Nitropress) Indications Hypertensive crises Production of controlled hypotension in order to reduce bleeding during surgery Acute congestive heart failure Dosage Adults the usual initial dose is 0. The maximum recommended infusion rate is 10 g/kg/min; infusion at the maximum dose rate should never last for > 10 min. To keep the steady-state thiocyanate concentration below 1 mmol/L, the rate of a prolonged infusion should not exceed 3 g/kg/min (1 g/kg/min in anuric patients). When > 500 g/kg of nitroprusside is administered faster than 2 g/kg/min, cyanide is generated faster than the unaided patient can eliminate it. Note: After reconstitution with the appropriate diluent, sodium nitroprusside injection is not suitable for direct injection. The reconstituted solution must be further diluted in the appropriate amount of sterile 5% dextrose injection before infusion. The diluted solution should be protected from light by promptly wrapping the medication container with the supplied opaque sleeve. Sodium nitroprusside should be administered through an infusion pump, preferably a volumetric pump. If administered intranasally by spray or on pledgets, the dosage and interval between treatments must be determined for each patient. The loading dose should be followed by 20 mg of conivaptan administered in a continuous intravenous infusion over 24 hours. Following the initial day of treatment, conivaptan is to be administered for an additional 1-3 days in a continuous infusion of 20 mg/day. If serum sodium is not rising at the desired rate, conivaptan may be titrated upward to a dose of 40 mg daily, again administered in a continuous intravenous infusion. The total duration of infusion of conivaptan (after the loading dose) should not exceed 4 days. Preparations Vaprisol (Astellas Tokai): 20 mg/4 mL ampule, 20 mg in 100 mL premixed solution 2. Dosage may be increased at intervals 24 h-30 mg once daily, and to a maximum of 60 mg once daily as needed to raise serum sodium. Preparations Samsca (Ostsuka): 15 and 30 mg tablets Vasopressin Receptor Antagonists 1. However, there are no controlled studies of pregnant women in the first trimester to confirm these findings and no evidence of risk in the later trimesters. C = Either animal studies have revealed adverse effects (teratogenic or embryocidal), but there are no confirmatory studies in women, or studies in both animals and women are not available. Because of the potential risk to the fetus, drugs should be given only if justified by potentially greater benefits. Despite the risk, benefits from use in pregnant women may be justifiable in select circumstances (eg, if the drug is needed in a life-threatening situation and/or no other safer acceptable drugs are effective). X = Studies in animals and humans have demonstrated fetal abnormalities and/or evidence of fetal risk based on human experience. Dose re- Usual dose with frequent monitoring duction is probably not necessary; titrate dosage based on clinical response (Table continued on p. Dose re- Usual dose with frequent monitoring Torsemide, Thiazide, Bendroduction is probably not necessary; titrate flumethiazide, Benzthiazide, Chlorothiazide, Hydrochloro- dosage based on clinical response thiazide, Hydroflumethiazide, Methyclothiazide, Polythiazide, Quinethazone Indapamide Metolazone Dose reduction may be necessary Usual dose with frequent monitoring May precipitate hepatic coma; diuretic Usual dose with frequent monitoring effect is preserved in patients with renal insufficiency. Bosentan Caution should be exercised during the use of bosentan in patients with mildly impaired liver function. Cardiovascular drug therapy in patients with intrinsic hepatic disease and impaired hepatic function secondary to congestive heart failure. Appendix 5 Dose Adjustment in Patients with Renal Insufficiency Drug CrCl:30to60mL/min a-Adrenergic Antagonists Doxazosin Use usual dose. Terazosin a2-Adrenergic Agonists Clonidine Guanabenz Guanfacine Methyldopa Use usual dose. Dialyzability(Hemodialysis) No No No No No No Unknown No Yes Angiotensin-Converting Enzyme Inhibitors Benazepril Use usual dose. Captopril Enalapril Fosinopril Lisinopril Moexipril Perindopril Start with low dose and titrate based on response. Start with low dose and titrate Start with low dose and titrate based on response. Start with low dose and titrate For patients with CrCl 40 mL/min, start with low dose based on response. Ramipril For patients with CrCl < 40 mL/min, start with low dose and titrate based on response. Start with low dose and titrate based on response; maximum dose should not exceed 20 mg. Yes (give maintenance Use usual dose with caution; maintenance dose by 25% if CrCl dose after dialysis or supplement with 200 mg post <10 mL/min. Start with lower dose and titrate based on response; dofetilide is contraindicated in patients with CrCl of <20 mL/min. Dialyzability(Hemodialysis) Unknown No Yes-both acebutolol and diacetolol No No No Unknown No No No No Yes Unknown No Unknown No No No No Unknown Propafenone Use usual dose. Unknown (probably no) Unknown (probably no) Yes (give maintenance dose after dialysis or supplement with 80~mg post hemodialysis). Unknown Yes (25% removed) No Enoxaparin Fondaparinux Heparin Lepirudin Tinzaparin Warfarin Thrombolytic Agents Alteplase Use usual dose with caution. Diuretics (Contraindicated in anuric patients) Loop Diuretics Bumetanide Use usual dose. Use usual dose with caution; specific recommendations on dosage adjustments are not available. Ineffective Ineffective Ineffective if CrCl <15 mL/min Use usual dose with caution. Inotropic Agents and Vasopressors Amrinone (Inamrinone) Start with low dose and titrate based on response. CrCl<30mL/min Contraindicated Contraindicated Contraindicated Contraindicated Use usual dose with caution. Start with low dose, many patients only need a dose q 48 to 72 h; if loading dose is indicated, 25%. Unknown No Unknown Unknown Unknown Unknown Unknown Yes Unknown the possibility of hyperchloremic acidosis is increased in patients with renal insufficiency; use usual dose with caution. Colestipol the possibility of hyperchloremic acidosis is increased in patients with renal insufficiency; use usual dose with caution. Colesevelam the possibility of hyperchloremic acidosis is increased in patients with renal insufficiency; use usual dose with caution. CrCl<30mL/min Dialyzability(Hemodialysis) No No No No Unknown Simvastatin Nicotinic Acid Start with low dose and titrate based on response; use with caution. Mecamylamine Start with low dose and titrate Start with low dose and titrate based on response. Trimethaphan Start with low dose and titrate Start with low dose and titrate based on response. Hydralazine dosing interval to q 6 to 8 h dosing interval to q 8 to 24 h Iloprost Use usual dose. Start with 5 mg once daily and not exceed 10 mg once daily in patients not on hemodialysis. Start with low dose and titrate Start with low dose and titrate based on response; use with based on response; use with caution. No Unknown Unknown dosing interval to q 48 h; dos- Unknown (probably no) age increments should be made cautiously at intervals 14 days. Isoxsuprine Start with low dose and titrate Start with low dose and titrate based on response. Nitroprusside Start with low dose and titrate Start with low dose and titrate based on response; use with based on response; use with caution. Start with low dose and titrate Tolazoline Start with low dose and titrate based on response; use based on response; use with cauwith caution. Contraindicated in anuric patients Drug Isosorbide dinitrate CrCl:30to60mL/min Use usual dose. However, dialysis may be considered in overdosed patients with severe renal impairment. Cough is two to three times greater in women; increased fetal abnormalities possible; present in breast milk. Increased fetal abnormalities possible Present in breast milk; blood levels of propranolol may be higher in men. Inability to achieve orgasm; possible decreased craving for tobacco more common in women Decreased urinary calcium excretion; women have greater increase in risk of gout; acute pulmonary edema and allergic interstitial pneumonitis is more common in women; excreted in breast milk. Hepatic/biliary Renal Renal Hepatic Hepatic Renal Initiate at lowest dose; titrate to response. No adjustment necessary No adjustment necessary Adjust dose based on renal function. Erythrocytes/vascular Hepatic/renal No adjustment necessary Use usual dose with caution. Hepatic/biliary Renal/proteolytic cleavage Renal/hepatic Renal Renal Renal Hepatic/reticuloendothelial system Renal Unknown Hepatic/renal Hepatic Hepatic/biliary Renal/plasma Hepatic Hepatic Hepatic Hepatic Unknown Hepatic Circulating antibodies/reticuloendothelial system Use usual dose with caution.

If soft-tissue swelling is significant and/or fracture is significantly displaced medications that cause hair loss order 100mg lovegra, a spanning external fixator should be applied to maintain fracture reduction and let soft tissues settle down medications when pregnant purchase lovegra on line amex. In bicondylar fractures silent treatment cheap lovegra 100mg online, two external fixators in two planes to maintain fracture reduction can be used symptoms 0f ovarian cancer buy 100mg lovegra mastercard. Bone graft ­ when the depressed fragments are elevated symptoms nerve damage cheap 100 mg lovegra with visa, this leaves a void that can be filled in with either autologous bone graft or allograft (cancellous bone chips) or bone substitute (calcium triphosphate, calcium sulphate). Bone graft harvest sites include anterior iliac crest and posterior iliac crest (if preoperative planning indicates more volume is required). Tibial shaft fractures Typical history ­ moderate- to high-energy injury in the young (contact sports injury, road traffic accident), lowenergy injury in the elderly (fall from standing height) Initial assessment ­ soft-tissue injury, compartment syndrome, neurovascular status Initial management ­ above-knee back slab, elevation of leg, analgesia, frequent assessment for compartment syndrome. Less common fracture patterns Intra-articular fractures of the proximal tibia involving the posterior aspect of the tibia can be accessed via a posterior approach. Intra-articular fractures of the proximal tibia involving the posterolateral aspect of the tibia can be accessed via a posterolateral approach or a transfibular approach. Definitive management Non-operative management Stable isolated fractures, <10 angulation or rotational malalignment, <50% translation. Above-knee back slab initially until swelling settles, followed by above-knee cast either in theatre or plaster room. Fibular head fracture the fibular head serves as an attachment for the lateral collateral ligament and biceps tendon. Hence, options of surgical fixation of displaced fibular head fractures should be considered either with tension band fixation or screw fixation with washers. Associated soft-tissue damage or loss should be dealt with by plastic surgery at the time of internal fixation. Vascular injury does not need formal arteriography in the vascular suite if there are no other ipsilateral limb injuries. Vascular shunt is performed by vascular surgeons followed by stabilizing the fracture with an external fixator that does not interfere with vascular repair. Operative management Indications ­ open fracture, associated vascular injury, segmental fracture, tibia and fibula fracture at same level, multiple fractures, compartment syndrome and failed non-operative management. Options Internal fixation Interlocked nail fixation is the treatment of choice in tibial shaft fractures. In fractures at the junction of metaphysis and diaphysis, either proximal or distal internal fixation can also be performed with a nail. Distal shaft fractures require special nails with locking screw holes near the tip of the nail and nail length increments in 10 mm to allow accurate nail length. These injuries can either be dealt with at the same time of tibial plateau surgery or after the bony injuries have healed. Fracture ­ extra articular, partial articular or complete articular (further subdivided based on degree on metaphyseal and/or articular comminution). Minimally invasive precontoured plate fixation is an option in shaft fractures that are either in the proximal or distal metadiaphyseal area. Proximal tibial fractures tend to go in to valgus and procurvatum while distal tibial fractures tend to go in to varus and recurvatum. External fixation this can be used in cases of open fracture (could be used as definitive management). External fixation can be converted to internal fixation for up to 2 weeks without increase in risk of infection. Non-operative management Undisplaced fractures could be treated in non-weightbearing above-knee cast for 3­4 weeks followed by non-weightbearing below-knee cast for a further 4­6 weeks. Operative management Principles of surgery ­ fibula length restoration, reconstruction of articular block, restore alignment, length and rotation, bone graft the gaps and stabilize the tibia. Once soft-tissue cover has taken, limited open reduction and articular block reconstruction and circular frame fixation. Complications Nail ­ compartment syndrome, rotational deformities and anterior knee pain around 40%. Pilon fracture Typical history ­ high-energy injury (axial loading and or rotational forces ­ fall from heights, road traffic accidents, skiing injuries) in the young and low-energy injury (twisting injury ­ fall from standing height) in osteoporotic bone Complications Soft-tissue healing problems, ankle stiffness, non-union, malunion, osteomyelitis and secondary osteoarthritis. Classification Weber ankle fracture classification is easiest to remember but associated medial and posterior injuries should be described. Fracture pattern helps in understanding the mechanism of injury and structures injured. Local features of medial injury include bruising, tenderness and swelling, but these are not 100% sensitive. A stress test can help differentiate a stable from an unstable fracture and hence predict the need for surgery. Stable ­ undisplaced Weber B type fibula fractures and no medial injury (no ecchymosis, swelling or tenderness) or by stress test. Assessing radiographs for displacement ­ fibula length by talocrural angle and Shenton line, talar shift by medial clear space >4 mm, syndesmosis by tibiofibular clear space. In spite of these measurements showing an undisplaced fracture, it could still be an unstable fracture, as discussed above. Management Initial Displaced fractures are manipulated and a back slab is applied in accident and emergency under sedation or pain relief. If the ankle is too swollen or significant blisters develop or the fracture displaces in the back slab, then spanning external fixation is performed which allows blisters to be dressed and swelling assessed easily. Non-operative management this is an option for undisplaced stable fractures, significant comorbidities, poor local skin or significant vascular problems. Operative management Displaced unstable fractures Fixation options for lateral malleolus fracture ­ lag screw and contoured one-third tubular plate or precontoured locked plate applied laterally. Lag screw and posterior gliding plate, which has the potential advantage of a buttress plate and allows bicortical fixation for screws in the distal fragment but peroneal tendon irritation is a problem. Vertical medial malleolus fracture (in adduction type) cannot be adequately stabilized with just screws. The site of plate application depends on the plane of fracture (coronal or oblique) and also on the presence of a posteromedial fragment. Posterior malleolus ­ fracture is often lateral and indicates an intact posterior inferior tibiofibular ligament. If less than 25% of the articular surface is involved then it almost always falls back in to place when the lateral malleolus is stabilized. If more than 25% of the articular surface is involved then stabilization of the fragment is preferred to prevent late displacement. If a posterior fragment is displaced, a large pointed reduction clamp can be used to reduce the fracture, along with anteroposterior percutaneous screws. The commonest mechanism of syndesmosis injury is pronation external rotation (as per Lauge­Hansen classification). If a syndesmosis screw has been used, then the time period of nonweightbearing varies from 6 to 12 weeks. The younger the patient and higher the fibular fracture, the longer that weightbearing and removal of screw is delayed. Regular removal of syndesmosis screw is controversial as an intact screw has worse functional outcome than a removed or a broken screw. If syndesmosis injury is part of a bimalleolar fracture, then a syndesmosis screw is introduced through the plate fixation of the lateral malleolus. Syndesmosis is checked under image intensifier (talocrural angle, Shenton line, etc. The brace is associated with increased wound problems and no difference in long-term outcomes. If closed reduction of talar neck fracture is unsuccessful after two or three attempts, then open reduction and fixation of the fracture is performed to avoid any further damage. If closed reduction is achieved and alignment is satisfactory by Canale view, percutaneous screw fixation from anterior to posterior is undertaken. If there is medial comminution, the medial screw is used as a positional screw not a lag screw to avoid varus malunion. Open reduction Approaches can be anterolateral (minimal vascular risk), anteromedial (risk to artery of tarsal canal) or posterolateral. If the fracture is not visible because it is quite proximal, medial malleolus osteotomy will help to visualize it and also 409 Section 7: the trauma oral protect the deltoid branches of the posterior tibial artery. Complications Soft-tissue healing problems, varus malunion, non-union, avascular necrosis and secondary osteoarthritis of subtalar and or ankle joints14 Avascular necrosis of talus ­ owing to much of the talus being covered by articular surface and having no muscular attachments, the tenuous nature of the blood supply to talus and retrograde arterial supply, the talus is at risk of avascular necrosis. Postoperative serial anteroposterior radiographs will show indirect signs of vascular viability. Lucency occurs owing to disuse atrophy and can occur only if the blood supply is intact to flush out calcium. On the other hand, sclerosis indicates loss of blood supply, which is exaggerated by disuse osteoporosis by surrounding bone. Management of avascular necrosis is non-weightbearing until creeping substitution occurs. The talar head is supplied by branches of dorsalis pedis artery and an anastomosis of arteries of the tarsal canal and tarsal sinus. The talar body is supplied by an anastomosis of arteries of the tarsal canal and tarsal sinus. Symptomatic non-union ­ for two large fragments then either bone graft and fixation or excision. Talus dislocation Mechanism of injury ­ high energy with associated rotational forces Assessment ­ closed or open dislocation, local soft-tissue status. It is either medial (most common) or lateral dislocation (could be associated with distal fibular fracture). If unsuccessful, this could be caused by tendon interposition (extensor digitorum brevis or peroneals in medial dislocation and tibialis posterior in lateral dislocation). If closed reduction is unsuccessful, then open reduction is performed with either anteromedial and or anterolateral approaches. Spanning external fixation allows inspection of soft tissues and maintains joint stability. Further wire fixation of the talonavicular joint may be performed if spanning external fixation is deemed insufficient. Talar body fracture Talar body fractures are caused by high-energy injury with a worse prognosis than talar neck fracture (rate of avascular necrosis around 50%) Surgical management ­ medial malleolus osteotomy provides visual access to reduce the fracture accurately, and stabilization could be performed percutaneously with screws running posterolateral to anteromedial. Complications Soft-tissue healing problems, subtalar instability or osteoarthritis and avascular necrosis of the talus. Management options include calcaneotibial arthrodesis (for avascular necrosis with collapse) and subtalar joint arthrodesis (for secondary osteoarthritis). Talar lateral process fracture Mechanism of injury of talar lateral process fracture is inversion of the ankle. Broden view ­ posterior facet of subtalar joint Undisplaced fracture ­ non-weightbearing cast for 6 weeks. The aim of surgery is to achieve reduction of the posterior facet and reduce the widening of calcaneum. High elevation, analgesia and ankle exercises are undertaken until swelling subsides. An extended lateral approach is performed through which the lateral wall is flipped down and intraarticular segments are reduced under vision and screw fixation is in to the sustentaculum tali. Lisfranc fracture dislocation Mechanism of injury ­ high energy, plantarflexion with axial loading or crushing injury (foot run over by truck) Assessment ­ local soft-tissue status, deformity, distal neurovascular deficit, compartment syndrome Radiological assessment ­ dorsoplantar view (medial border of second metatarsal in line with medial border of middle cuneiform), oblique view (medial border of fourth metatarsal in line with medial border of cuboid) and lateral view (dorsal displacement of metatarsal bases) views of foot. Classification is based on the direction of dislocation and whether all the tarsometatarsal joints are involved: total incongruity (medial or lateral), partial incongruity (medial or lateral) or divergent (total or partial). The second metatarsal base is connected to the medial cuneiform by the plantar ligament (Lisfranc ligament). Calcaneal tuberosity fracture Mechanism of injury ­ eccentric contraction of gastrosoleus leading to calcaneal tuberosity avulsion fracture Initial assessment ­ local soft tissues, distal neurovascular deficit. If the fracture is displaced then there is often tenting and pressure on the skin just under the fracture. Hence, it is essential that the fracture is reduced and a back slab applied with the ankle in plantarflexion followed by check radiographs to confirm it. The medial column is less mobile and requires a more stable fixation (screw fixation); the lateral column is more mobile and hence K-wire fixation is sufficient. Two dorsal incisions are made, through which the second metatarsal base is first reduced and stabilized. Delayed presentation Options of treatment include direct repair, if possible without tension or extreme equinus. If direct repair is not possible without tension, then a gastrocnemius turn-down flap is performed. Pelvic and acetabular fracture Typical history ­ high-energy injury owing to road traffic accident or fall from height. Identify and treat associated life-threatening injuries of the thorax and abdomen. Radiographic assessment Tendo Achilles rupture Mechanism of injury ­ eccentric loading of gastrosoleus in middle-aged patients, often ruptures about 5­6 cm from insertion. Some of the associated factors include steroid use, gout, long-term use of quinolones, chronic renal failure Assessment ­ gap in the tendo Achilles. If there is any doubt or a delay in presentation, then ultrasound examination of tendo Achilles will show presence or absence of rupture. There is controversy with regard to the presence of incomplete tendo Achilles rupture. Often, when ultrasound examination shows incomplete tendo Achilles rupture, at surgery the rest of the tendon that appears to be in continuity is stretched and appears nonfunctional. Pelvic fracture ­ anteroposterior, inlet (shows anteroposterior displacement) and outlet (superior displacement) views of the pelvis Acetabular fracture ­ anteroposterior, Judet views (obturator and iliac oblique views). Obturator oblique view shows anterior column and posterior wall while iliac oblique view shows posterior column and anterior wall.

Syndromes

• Angioplasty is often the first choice of treatment. It should be done within 90 minutes after you get to the hospital, and no later than 12 hours after a heart attack.
• Hepatitis virus panel to look for infection of the liver
• Laboratory culture of eye fluids, lymph node tissue, or blood
• Abdominal pain
• Passing a thin flexible tube (catheter) into the right or left side of the heart, usually from the groin (cardiac catheterization)
• Several days before surgery, you may be asked to stop taking aspirin, ibuprofen (Advil, Motrin), vitamin E, clopidogrel (Plavix), warfarin (Coumadin), and other drugs like these.
• Hypogonadism
• Pill
• Skin biopsy and Gram stain
• Pneumonia

Patients with penetrating cervical or thoracic spinal cord injuries may need further investigation by means of endoscopy or swallow studies to rule out associated aerodigestive injuries symptoms 7 weeks pregnancy lovegra 100mg with visa. All penetrating injuries to the abdomen in paralyzed patients should undergo exploratory laparotomy medications during pregnancy chart cheap lovegra 100mg buy on line, because the abdomen is clinically unevaluable medications 126 order lovegra 100 mg line. The management of penetrating cord injuries is usually supportive and operative intervention has little or no role treatment uveitis order lovegra. In most cases medicine 5 rights lovegra 100mg purchase on line, surgery to remove the bullet does not improve outcome and may increase the risk of complications, such as infection, cerebrospinal fluid leak, and bleeding. However, some cases with incomplete cord injury due to gunshot wounds, especially if there is deterioration of the neurological function, may require surgical decompression. Similarly, victims with incomplete cord injuries and a missile lodged in the spinal canal may benefit from operative removal. Steroids have no role for routine use in penetrating spinal cord trauma and there is some evidence that they increase the risk of complications. In selected cases with extensive surrounding edema or shock wave injury due to high velocity missiles, some physicians might give steroids. Patients with complete spinal cord transection at this level die within a few minutes because of complete respiratory muscle paralysis. This patient, in addition to the quadriplegia, suffered severe hypoxic brain damage. The bullet is lodged in the vertebral body and does not need to be removed (left). Cutaneous burns range from inconsequential superficial injuries that can heal without medical intervention to overwhelming skin loss and patient death. The extent of the burn depth and size is directly related to the degree of fluid loss and the extent of the systemic inflammatory response. Patients require careful fluid resuscitation for this mixed hypovolemic and hyperdynamic state. In the United States, burns account for approximately 40­50,000 admissions per year with 80% of patients being candidates for outpatient treatment. The American Burn Association has devised specific referral criteria for transfer to specialized burn centers, which have been shown to decrease mortality and improve functional outcome of patients. Burn mortality has decreased drastically over the past three decades as a result of early excision and grafting, control of sepsis, advances in ventilatory and nutritional support, and wound care adjuncts such as synthetic skin substitutes. Therefore a focused examination is important to determine the possibility of neurologic or musculoskeletal injury. The patient should be completely exposed to assess for the extent of burn, and for evidence of any associated trauma. Proper initial resuscitation is dependent on accurate assessment of both the extent and depth of burn. Percentage of body surface area involved may be estimated by applying the "Rule of Nines" or the Lund­ Browder chart for second-degree or higher burns. In this calculation, the head and each upper extremity is 9%, while the lower extremities, the anterior and posterior trunks are each 18% of the body surface area. The lower extremities are 14% each with the remaining distribution the same as adults. In the first 24­48 hours the extent of burn size and depth may not be clear as the injury progresses. Deeply burned skin looses elasticity and manifests as a loss of compliance in response to underlying tissue swelling. Though the initial chest radiographs may be normal in early inhalation injury, it may demonstrate parenchymal abnormalities such as pulmonary edema. These procedures can be done at the bedside to further evaluate the airways of patients with suspected inhalation injury. Visualization of airway erythema, edema, carbonaceous sputum, and singed nose hair all signify inhalation injury. Extensive burns of the extremities and subsequent edema make peripheral pulses difficult to palpate, and Doppler stethoscope may help detect weak pulses. Whenever suspected, objective measurements can assist in further clinical management. Glycemic control can reduce osmotic diuresis and infectious complications, and may improve survival. Although, the precise target range is yet to be defined, most practitioners attempt to keep glucose below 180 mg/dL. Similarly, circumferential burns of the extremities can impede blood flow and induce limb ischemia. Clinical vigilance and early escharotomy are imperative to prevent respiratory compromise or further tissue ischemia. Patients showing any signs of acute inhalational injury should undergo immediate endotracheal intubation either as a prophylactic or therapeutic measure. Remaining clothing may continue to harbor the burning process, and thus the patient should be completely undressed and all jewelry removed. Dry chemical powders should be brushed off the skin while liquid chemicals should be removed with copious water irrigation. Once the skin has been completely cleansed and fully evaluated, the patient should be promptly dried and covered with warm blankets to prevent hypothermia. However, specific transfer criteria have been established by the American Burn Association to achieve the Investigations History and physical examination clarifies the circumstances surrounding the burn and may reveal any associated injuries. Early detection of hypoxia and/or hypercapnia in patients with inhalation injury is documented by these tests. Silver sulfadiazine is the most commonly used topical antimicrobial in burn wound care. Sometimes proteinacous exudate, silver sulfadiazine, and fibrin combine to produce a pseudoeschar which should be removed during daily dressing changes. Burns over cartilaginous areas such as the nose and ear can be covered by mafenide acetate, which has superior eschar penetration to silver sulfadiazine. Tetanus vaccination status should be obtained and prophylaxis administered when necessary. Patients demonstrating signs of compartment syndrome should undergo emergent escharotomy. In addition to providing pain relief, adequate analgesia has been shown to decrease the incidence of posttraumatic stress disorder, particularly in the pediatric population. Burn patients are in a hypermetabolic state and may require greater than normal doses of medications to achieve the desired effect. Aggressive crystalloid hydration is necessary to maintain adequate circulating blood volume due to the evaporative loss and third space fluid shifts. Early aggressive fluid resuscitation should be initiated to achieve a urine output of at least 0. Although various formulas exist to guide the initial resuscitation of the burned patient, the most commonly applied is the Parkland formula. Half of this volume is given in the first 8 hours post burn, and the remaining given over the next 16 hours. Mental status, vital signs, and central venous pressure also serve as useful adjuncts to guide resuscitation. However, urine output remains the most reliable indicator of adequate end organ perfusion. Adequate urine output is particularly important for patients who suffer from burn-associated rhabdomyolysis. These patients can develop progressive airway edema that can quickly change a safe elective intubation to an airway emergency. Ten percent of burn patients suffer from concomitant trauma, and liberal imaging modalities should be used to clarify the injury burden. The evaporative loss, third space fluid shift, and the proinflammatory hypermetabolic state cause tremendous fluid loss. Aggressive crystalloid resuscitation is required to maintain hemodynamic stability and adequate end organ perfusion. Large amounts of intravenous analgesic are often needed to achieve adequate relief. Partial thickness burns may convert to full thickness either due to Burn Injuries 255 the extent of injury or inadequate resuscitation. The same team of clinicians should serially exam- ine the wound in order to appreciate the wound progression and plan management. Extent of Burn Injury Second-degree and higher burns are characterized in to three zones of injury. It transitions to the zone of stasis where the moderately injured tissue experiences decreased perfusion secondary to injury-induced vasoconstriction. Depending on the extent of tissue damage and the adequacy of resuscitation, this tenuous zone may progress to necrosis or may recover. The zone of stasis may progress to necrosis or may recover, depending on good resuscitation and prevention of infection. The extent of thermal penetration is limited to the epidermis while the dermis and all elements of the dermal appendages remain intact. The burned skin is erythematous, painful, blanches with touch, but does not blister. Skin regeneration typically happens within a few days as the damaged epidermal layer desiccates and sloughs off. Treatment is aimed at providing comfort with moisture cream to create a supportive environment for healing and nonsteroidal anti-inflammatory drugs or acetaminophen for pain. Its division in to two classifications, superficial and deep, is based on depth of injury, but more importantly has treatment and prognostic significance. Tissue response to injury is a dynamic process, particularly in the first 24­48 hours post injury. Appropriate fluid resuscitation and wound care that establish a moist antibacterial environment may arrest conversion of a superficial to deep seconddegree burn and facilitate healing. Spontaneous reepithelialization takes place from the rete ridges, hair follicles, and sweat glands and is typically complete by 14 days. Deep Second-Degree Burn A deep second-degree burn extends to the deep dermal layer. Mafenide acetate efficiently penetrates cartilage and should be used for burns over the ear and nose. While deep second-degree burns may heal spontaneously, the rate and quality of that healing is often poor and there is a higher propensity to convert to full-thickness burns, develop infections, and form contractures. Depending on the size of injury and the status of the surrounding tissues, a small deep second-degree burn may be treated expectantly with local wound care and antimicrobial dressings. However, large affected areas or those in close proximity to third-degree burns are best treated by early tangential excision and grafting. This approach has been shown to decrease septic wound complications, decrease hospitalization and associated morbidity and mortality, and improve functional outcome. Supportive measures include early enteral nutrition, anabolic agents, and appropriate antibiotic usage. It has a broad spectrum of activity against both gram- positive and gram-negative organisms, including Staphylococcus aureus and certain species of Pseudomonas and Candida. It has limited eschar penetrating and side effects include neutropenia and thrombocytopenia. Mafenide acetate provides the best eschar penetration with the broadest antimicrobial coverage against Pseudomonas and gramnegative rods. However, it is painful on application and can cause metabolic acidosis due to its carbonic anhydrase activity. Treatment of deep second-degree or deeper burns begins with tangential removal of the necrotic tissue followed by closure. Burn wound coverage usually consists of autografts and temporary synthetic alternatives. In patients with extensive burns, the donor graft harvested at a depth of 8­14/1000th of an inch can be meshed to provide expanded wound coverage. Meshed grafts are also less susceptible to seroma accumulation and have better conformance to contoured areas such as the knee or ankle. However, seroma formation beneath the sheet graft is more common, and this needs to be carefully drained to avoid graft loss. There is notable absence of tissue edema compared to surrounding second-degree burns. If left untreated, third-degree burns will form a classic burn eschar that will separate from the surrounding viable tissue over the ensuing days to weeks. Spontaneous wound closure takes place by contracture formation from the wound edges as all regenerative elements within the wound bed are destroyed. It is charred in appearance and requires extensive debridement, complex reconstruction, and in certain cases, amputation. The upper airway suffers from direct thermal damage up to the level of the glottis. The closure of the glottis and the moist airway environment limits the extent of thermal transmission distally. Clues on physical examination include facial burns, singed nasal hair, carbonaceous sputum, and hoarse voice. Direct laryngoscopy demonstrating mucosal erythema, edema accompanied by carbonaceous sputum, is diagnostic of inhalation injury. There should be a low threshold for intubation, even in cases of what appears to be mild inhalation injury, due to the progression of airway edema that can turn an elective situation in to an airway emergency.

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