Specifically purchase generic avanafil canada erectile dysfunction test, providers may believe (incorrectly) that dosage should be low because (1) older adults are relatively insensitive to pain; (2) if pain occurs buy 200 mg avanafil with amex erectile dysfunction pump as seen on tv, older adults can tolerate it well; and (3) older adults are highly sensitive to opioid side effects. The first two concepts have no basis in fact, and therefore must not be allowed to influence treatment. Although there is some truth to the third concept, concern about side effects is no excuse for inadequate dosing. Increased Risk for Side Effects and Adverse Interactions For several reasons, older-adult patients may experience more side effects than younger adults. As noted, drug elimination in older adults is impaired, posing a risk that drug levels may rise dangerously high. However, with careful dosing, drug levels can be kept within a range that is both safe and effective. Gastric erosion can be reduced by concurrent therapy with misoprostol or a proton pump inhibitor (e. The risk for serious injury from drug interactions can be reduced by careful drug selection and by monitoring for potential reactions. Young Children Management of cancer pain in children is much like management in adults. In addition, children frequently experience more pain from chemotherapy and other interventions than from the cancer itself. Selecting an appropriate assessment method is especially important for children with developmental delays, learning disabilities, and emotional disturbances. Assessment can be greatly facilitated by open communication about pain between the child, family, and health care team. Assessment methods include self-reporting, behavioral observation, and measurement of physiologic parameters (e. As stressed earlier, self-reporting is preferred and should be employed whenever appropriate. Because many factors other than pain can alter physiologic parameters, measuring these is the least reliable way to assess pain. Verbal Children For children who can verbalize and are older than 4 years, self-reporting is the most reliable way to assess pain. These include (1) fear that revealing their pain will lead to additional injections and other painful procedures, (2) lack of awareness that we can help their pain go away, (3) a desire to protect their parents from the knowledge that their cancer is getting worse, and (4) a desire to please. Because the self-report may conceal pain, it can be helpful to supplement the self-report with behavioral observation (see later). Preverbal and Nonverbal Children Because preverbal and nonverbal children cannot self-report pain, a less reliable method must be used for assessment. Behavioral cues suggesting pain include vocalization (crying, whining, groaning), facial expression (grimacing, frowning, reduced affect), muscle tension, inability to be consoled, protection of body areas, and reduced activity. The biggest drawback to behavioral observation is the risk for a false- negative conclusion. That is, a child may be in pain although his or her behavior may lead the observer to conclude otherwise. Similarly, although sitting quietly might indicate comfort, it could also mean that moving and talking are painful. When behavioral observation leaves doubt about whether the child is in pain, a trial with an analgesic can help confirm the assessment. Treatment Therapy of cancer pain in children is essentially the same as in adults. As in adults, drugs are the cornerstone of treatment; nondrug therapies are used only as supplements. More invasive routes should be reserved for patients who cannot take drugs by mouth. Children generally object to rectal administration and may refuse treatment by this route. Neonates and infants are highly sensitive to drugs and hence must be treated with special caution. Because of heightened drug sensitivity, neonates and infants are at increased risk for respiratory depression from opioids. Accordingly, when opioids are given to nonventilated infants, the initial dosage should be very low (about one third the dosage employed for older children). Furthermore, use of opioids should be accompanied by intensive monitoring of respiration. Opioid Abusers When treating cancer pain in opioid abusers, we have two primary obligations: we must try to (1) relieve the pain and (2) avoid giving opioids simply because the patient wants to get high. Because of the challenge, treatment should be directed by a clinician trained in substance abuse as well as pain management. Remember, abusers feel pain like everyone else and therefore need opioids like everyone else. Clinicians must take special care not to withhold opioids because they have confused relief-seeking behavior with drug-seeking behavior. Hence, if the patient tells us that pain is persisting, adequate doses of opioids should be provided. Because of opioid tolerance, initial doses in abusers must be higher than in nonabusers. To estimate how high the initial dosage should be, we must try to estimate the existing degree of tolerance by interviewing the patient about the extent of opioid use. However, because regulations limit the dosage of methadone that drug-abuse clinics can dispense, the increased dosage required to manage pain will have to come from another source. One group of opioids—the agonist-antagonists—will precipitate withdrawal in opioid abusers and hence must never be prescribed for these patients. Patient Education Patient education is an integral part of cancer pain management. When education is successful, it can help reduce anxiety, dispel hopelessness, facilitate assessment, enhance compliance, decrease complications, provide a sense of control, and enable patients to take an active role in their care. General Issues Common sense tells us that patient education should be accurate, comprehensive, and understandable. To reinforce communication, information should be presented at least twice and in more than one way. Major topics to discuss are (1) the nature and causes of pain, (2) assessment and the importance of honest self-reporting, and (3) plans for drug and nondrug therapy. Patients should be encouraged to express their fears and concerns about cancer, cancer pain, and pain treatment—and they should be reassured that pain can be effectively controlled in most cases. To facilitate ongoing education, patients should be invited to contact care providers whenever they feel the need—be it to discuss specific concerns with treatment or simply to acquire new information. Finally, patients should know when and how to contact the prescriber to report treatment failure, serious side effects, or new pain. Drug Therapy The goal in teaching patients about analgesic drugs is to maximize pain relief and minimize harm. To help achieve this goal, patients should know the following about each drug they take: • Drug name and therapeutic category • Dosage size and dosing schedule • Route and technique of administration • Expected therapeutic response and when it should develop • Duration of treatment • Method of drug storage and disposal • Symptoms of major adverse effects and measures to minimize discomfort and harm • Major adverse drug-drug and drug-food interactions • Whom to contact in the event of therapeutic failure, severe adverse effects, or severe adverse interactions The dosing schedule should be discussed. When pain is persistent, as it is for most patients, the objective is to prevent pain from returning.
An 82-year-old man who fell from his bed best avanafil 50mg erectile dysfunction protocol does it work, is confsed buy discount avanafil 50mg on-line erectile dysfunction in middle age, and cannot move his left side. On arrival his heart rate is 120 beats/minute and his blood pres sure is 90/65 mm Hg. Although there are insuficient data to make Level I recommendations, patient B does fulfill the criteria of the American Association ofNeurological Surgeons for possible intracranial pressure monitoring. This scenario describes a patient who was involved in a high-speed motor vehicle collision and is hemodynamically unstable. Angiography and embolization are options for relatively stable patients with solid organ injuries, and reasoning behind embolization is that early embolization can help avoid surgical inter ventions in some of the patients. It must be assumed that his hemodynamic instability is secondary to bleeding from his pelvic fracture. The first step is to place a pelvic binder to reduce the potential pelvic space where bleeding can occur. If he continues to deteriorate despite placement of the binder and transfsion, he would require angiography and possible embolization of branches of the internal iliac artery which may be bleeding. Blunt splenic injury in adults: multi-institutional study of the Easter Association for the Surgery of Trauma. The patient is a fre fghter who was inside a burning building when the foor of the room collapsed, causing him to fa ll 3 foors into the basement. The patient was trapped under a large amount of debris and was rescued afer approximately 35 minutes. On examination at the scene, he had a pulse of112 beatsjminute, a blood pressure of90f70 mm Hg, and bilateral thigh deformities with accompanying sof tissue swelling. He had burn wounds involving the entire anterior chest and abdomen and circumferential burns involving both upper arms. What are the measures that you would take to prevent organ injuries that may develop as results of his burns? His presentation to the emergency department is consistent with shock and inhalation injury. Place the patient on 100% oxygen to minimize injuries from his carbon monoxide inhalation. Large bore secured intravenous access should be placed for ongoing fluid resuscita tion and for central venous pressure monitoring. His thigh deformities likely indicate femur fractures that should be verified by x-rays, followed by reduction and stabilization. The bum wounds should be gently cleaned and covered with silver sulfadiazine and gauze dressing. The initial fluid administration may need to be greater in this patient because of the other associated injuries (liver, pelvis, and long bones) and his myoglobinuria. Primary prevention begins with timely and appropriate fluid resuscitation based on hemodynamic monitoring and responses to resuscitation (urine output, lactate, and base deficits). Early and timely wound management is also important in the prevention of distant organ dysfnction. For example, early burn wound excision has been demonstrated to produce fewer burn wound-associated septic complications and improved survival. To learn the management of thermal injuries (inhalation injuries, infections, acute kidney injuries, pain management, metabolic and nutritional support). To learn to recognize and prioritize the care of bum patients with other associ ated injuries. Co nsidertions This firefighter sufered severe burn injuries as evident by the extent of his wounds, which involve the entire circumference of his trunk and upper extremities. Inhalation ofthese toxins along with direct heat and the steam of the flames can cause edema and severe damage to the airway. Additionally, urgent orthopedic consultation is necessary for early skeletal stabilization. Burn injuries can be produced by heat, chemicals, electricity, or radiation, with thermal injuries being the most common. Thermal injuries are a significant cause of morbidity and mortality because of the profound infammatory response generated both locally and systemically. Skin Biology and Pathophysiology The epidermis and dermis are 2 distinct layers which make up the skin. The epidermis is the outermost layer and has the unique responsibility of protecting the host from infection, fuid loss, and ultraviolet light. It is also the site of vitamin D absorption and provides much of our thermal regulation. In contrast, the dermis lies underneath the epidermis and provides the structural framework of skin. There are 3 zones of tissue injury resulting from a bum: the zone of coagulation, the zone of stasis, and the zone of hyperemia. The zone of coagula tion is in the center and constitutes the most severely injured tissue. The zone of stasis is immediately beyond the zone of coagulation and is characterized by ischemia and vasoconstriction. The zone of stasis is important as it oftentimes is initially viable but can progress to the zone of coagulation when exposed to severe edema and/or hypoperfsion (consequences of inappropriate initial fuid management). In this zone the tissue is viable but often involved in profound infam matory changes from surrounding cells. Assessment of the extent of the burns and other major injuries should also take place at this time. Inspection of the airway includes evaluation of the mouth, nose, oropharynx, and trachea. Facial burns, cinched nose hairs, the pres ence of soot, foamy oral secretions, and mucosal edema should alarm the provider of possible inhalation injury, and early intubation should take place. Additionally, labored breathing with shallow breaths, use of accessory muscles, stridor, or dimin ished neurologic function also warrant intubation. A significant portion of initial deaths from fires occur secondary to hypoxia from oxygen deprivation or toxin inhalation. Perhaps one of the biggest advances in managing severely burned patients is the use of early aggressive fluid resuscitation. The Parkland formula, named after the hospital in Dallas, Texas, is a guide to volume repletion. Half of the calculated amount should be given in the first 8 hours following the injury, and the second half should be given in the subsequent 16hours. This is only a guide for resuscitation and should be used in conjunction with other information (eg, urine output, central venous pressure, etc) to determine volume status. The body is divided into sections and given a percentage (a fraction or multiple of 9) of body surface area. In this schema the anterior chest, posterior chest, abdomen, buttocks, unilateral anterior lower extremities, unilateral posterior extremities, circumferential unilateral arm, and circumferential head each equal 9%. Hence, an adaptation of the rule of nines estimates a larger surface area for the circumferential head and less for the extremities (Figure 29-1).
Therapeutic Use The only established indication for vitamin C is prevention and treatment of scurvy 100 mg avanafil with mastercard erectile dysfunction doctor houston. Vitamin C has been advocated for therapy of many conditions unrelated to deficiency cheap avanafil line beer causes erectile dysfunction, including cancers, asthma, osteoporosis, and the common cold. Claims of efficacy for several of these conditions have been definitively disproved. Studies have shown that large doses of vitamin C do not reduce the incidence of colds, although the intensity or duration of illness may be decreased slightly. Research has failed to show any benefit of vitamin C therapy for patients with advanced cancer, atherosclerosis, or schizophrenia. Preparations and Routes of Administration Vitamin C is available in formulations for oral and parenteral administration. Oral products include tablets (ranging from 25–1000 mg), timed-release capsules (500−1500 mg), and syrups (20 and 100 mg/mL), as well as granules, crystals, powders, effervescent powders, and wafers. In its medicinal role, niacin is used to reduce cholesterol levels; the doses required are much higher than those used to correct or prevent nutritional deficiency. Sources Nicotinic acid (or its nutritional equivalent, nicotinamide) is present in many foods of plant and animal origin. Particularly rich sources are liver, poultry, fish, potatoes, peanuts, cereal bran, and cereal germ. Deficiency The syndrome caused by niacin deficiency is called pellagra, a term that is a condensation of the Italian words pelle agra, meaning “rough skin. When taken in large doses, nicotinic acid can cause vasodilation with resultant flushing, dizziness, and nausea. Nicotinamide, a compound that can substitute for nicotinic acid in the treatment of pellagra, is not a vasodilator, and this does not produce the adverse effects associated with large doses of nicotinic acid. Accordingly, nicotinamide is often preferred to nicotinic acid for treating pellagra. Therapeutic Uses In its capacity as a vitamin, nicotinic acid is indicated only for the prevention or treatment of niacin deficiency. Preparations, Dosage, and Administration Nicotinic acid (niacin) is available in immediate-release tablets (50–500 mg), extended-release tablets (250–1000 mg), and extended-release capsules (250– 500 mg). For treatment of pellagra, daily doses may be as high as 500 mg/day; however, the usual dose is 50-100 mg every 6-8 hours. Once major signs and symptoms have resolved, dosing can be decreased to 10 mg every 8-12 hours until resolution of skin lesions. Unlike nicotinic acid, nicotinamide has no effect on plasma lipoproteins and hence is not used to treat hyperlipidemias. Riboflavin (Vitamin B ) 2 Actions Riboflavin participates in numerous enzymatic reactions. Sources and Requirements In the United States most dietary riboflavin comes from milk, yogurt, cheese, bread products, and fortified cereals. Use in Riboflavin Deficiency Riboflavin is indicated only for prevention and correction of riboflavin deficiency, which usually occurs in conjunction with deficiency of other B vitamins. In its early state, riboflavin deficiency manifests as sore throat and angular stomatitis (cracks in the skin at the corners of the mouth). Later symptoms include cheilosis (painful cracks in the lips), glossitis (inflammation of the tongue), vascularization of the cornea, and itchy dermatitis of the scrotum or vulva. Use in Migraine Headache As discussed in Chapter 23, riboflavin can help prevent migraine headaches; however, prophylactic effects do not develop until after 3 months of treatment. Thiamine (Vitamin B ) 1 Actions and Requirements The active form of thiamine (thiamine pyrophosphate) is an essential coenzyme for carbohydrate metabolism. Thiamine requirements are related to caloric intake and are greatest when carbohydrates are the primary source of calories. As indicated, thiamine requirements increase significantly during pregnancy and lactation. Sources In the United States the principal dietary sources of thiamine are enriched, fortified, or whole-grain products, especially breads and ready-to-eat cereals. Deficiency Severe thiamine deficiency produces beriberi, a disorder having two distinct forms: wet beriberi and dry beriberi. Wet beriberi is so named because its primary symptom is fluid accumulation in the legs. Cardiovascular complications (palpitations, electrocardiogram abnormalities, high-output heart failure) are common and may progress rapidly to circulatory collapse and death. In the United States thiamine deficiency occurs most commonly among people with chronic alcohol consumption. In this population, deficiency manifests as Wernicke-Korsakoff syndrome rather than frank beriberi. This syndrome is a serious disorder of the central nervous system, having neurologic and psychological manifestations. Symptoms include nystagmus, diplopia, ataxia, and an inability to remember the recent past. Accordingly, if Wernicke-Korsakoff syndrome is suspected, parenteral thiamine should be administered immediately. Therapeutic Use The only indication for thiamine is treatment and prevention of thiamine deficiency. Parenteral administration is reserved for severe deficiency states (wet or dry beriberi, Wernicke-Korsakoff syndrome). The dosage for beriberi is 5 to 30 mg/day orally in single or divided doses 3 times/day for 1 month. Pyridoxine (Vitamin B ) 6 Actions Pyridoxine functions as a coenzyme in the metabolism of amino acids and proteins. However, before it can do so, pyridoxine must first be converted to its active form: pyridoxal phosphate. Sources In the United States the principal dietary sources of pyridoxine are fortified, ready-to-eat cereals; meat, fish, and poultry; white potatoes and other starchy vegetables; and noncitrus fruits. Deficiency Pyridoxine deficiency may result from poor diet, isoniazid therapy for tuberculosis, and inborn errors of metabolism. Symptoms include seborrheic dermatitis, anemia, peripheral neuritis, convulsions, depression, and confusion. In the United States dietary deficiency of vitamin B is rare, except among6 people who abuse alcohol on a long-term basis. Within this population, vitamin B deficiency is estimated at 20% to 30% and occurs in combination with6 deficiency of other B vitamins. Isoniazid (a drug for tuberculosis) prevents conversion of vitamin B to its6 active form and may thereby induce symptoms of deficiency (peripheral neuritis).
Presentation of a Case: • There is wasting in right or left thigh avanafil 200mg amex erectile dysfunction low testosterone treatment, with tenderness of the thigh muscles best 200 mg avanafil erectile dysfunction doctor nj, muscle power and tone are diminished. A: It is a type of motor neuropathy in diabetic patient, characterized by asymmetrical wasting of muscles, usually involving the quadriceps (also in the shoulder). A: The patient usually presents with severe pain with wasting of quadriceps, also in the shoulder. Hyperaesthesia or paraesthesia is common, affected area may be very tender, the patient is occasionally cachexic (neuropathic cachexia) and extremely ill, unable to get out of bed. There is reduction of muscle power, tone, loss of knee jerk with occasional extensor plantar response on the affected side. A: It is thought to involve acute infarction of lower motor neuron of lumbosacral plexus. A: Prognosis is good, usually recovers, but may take a long time (over months to 2 years). There may be two types of fndings in the thigh, together called lipodystrophy: • Lipoatrophy. Presentation of a Case (Lipoatrophy or Lipohypertrophy of Thigh): • There is atrophy or wasting of muscle of thigh with multiple needle puncture marks. A: It is the localized atrophy of subcutaneous fat due to repeated injection of unpurifed animal insulin caused by immunogenic component of insulin. Treated by injection of pure human insulin at the margin and centre of the affected area, which results in restoration of normal contour. Diabetic lipoatrophy Diabetic Diabetic dermopathy Diabetic bullae lipohypertrophy Q:What is lipohypertrophy? A: It is the localized hypertrophy of subcutaneous fat due to repeated injection of purifed insulin at the same site. It is caused by continued lipid synthesis at the affected site, and is treated by chang- ing the site of injection. Presentation of a Case: • There is sharply demarcated, atrophied skin or plaque in the skin of shin with shiny surface and waxy yellow centre, brownish-red margin with surrounding telangiectasia. A: It is characterized by plaque-like lesion with central yellowish area surrounded by brownish border on the anterior surface of leg. Histology shows necrosis of collagen, infltration with epithelioid cells, giant cells with glycogen and lipid deposition. Necrobiosis lipoidica diabeticorum Necrobiosis lipoidica Necrobiosis lipoidica diabeticorum diabeticorum (Early stage) mebooksfree. A: It is characterized by atrophic, round or oval shaped, reddish brown or pigmented patch in skin, commonly in the pretibial area, precipitated by trauma associated with neuropathy. So, the term ‘necrobiosis lipoidica’ is used rather than necrobiosis lipoidica diabeticorum. Look carefully at the following points: Inspection: • Swelling, extent of swelling (right or left or both). Unilateral swelling in arm may occur following mastectomy or radiotherapy in chest. A: Normally, small amount of albumin fltered through the capillaries is absorbed through lymphatics. In lymphatic obstruction, water and solutes are reabsorbed into the capillaries, but the protein remains, which causes fbrosis and the area becomes hard or thick. Presentation of a Case 2 (Bilateral Leg Swelling): • Both the legs are swollen, with pitting oedema. Blood flm to see flaria (usually at night, for Wuchereria bancrofti and Brugia malayi). Provocation test (by giving diethylcarbamazine, 50 mg orally, then blood flm should be seen for flaria after 30 minutes). Intermittent elevation of the extremity by placing pillows, mainly during sleeping. Presentation of a Case: • The face or lips or hand are swollen with non pitting oedema or periorbital swelling in left eye. Angioedema (Face) Angioedema (Left eyelid) Angioedema (Hand) Angioedema (Lips) Q:What is angioedema? A: Angioedema is the episodic, localized, non-pitting swelling of submucous or subcutaneous tissues. In severe case, there may be wheezing, shortness of breath, nausea, abdominal pain. Mouth and laryngeal involvement may cause severe suffocation, can be life-threatening. Treatment— • Mild to moderate case—Anti histamine (cetirizine, loratidine), offending agents should be avoided. It synthesizes C1 esterase inhibitor by stimulating the liver (It may cause fuid retention, menstrual irregularity, obesity and androgenic effect. Remember the following points: • Antihistamines, adrenaline and steroid are often ineffective in hereditary angioedema. Presentation of a Case 1 (Supposing Left Lower Limb): • Left leg is swollen up to the knee. It is also positive in ruptured Baker cyst, trauma and infammation in calf muscle. Presentation of a Case 2 (Supposing Right Upper Limb): • Right upper limb is swollen. A: Calf muscle veins, popliteal, femoral and iliac veins (swelling up to thigh, femoral or iliac vein thrombosis). Stasis: Causes are: • Prolonged bed rest or immobilization (after acute myocardial infarction, cerebrovascular accident, fracture). Vascular endothelial damage: Causes are: • Trauma, surgery (commonly after prostatectomy, abdominal or pelvic surgery). A: As follows: • Pulmonary embolism (commonly from thrombosis in ileo-femoral vein, less commonly from below-knee thrombosis). Anticoagulation: Above knee thrombosis must be anticoagulated (as more chance of pulmonary embolism). In major bleeding, prothrombin complex concentrate (50 U/kg) or fresh frozen plasma (15 ml/kg) may be given. A: Thrombophlebitis (superfcial vein thrombosis): Infammation involving superfcial veins (after intravenous fuid or in varicose vein). Presentation of a Case (Supposing Left Side): • There is erythematous and darkly pigmented area with multiple vesicles or blisters or crusts involving the dorsum of left foot extending up to the lower part of leg. A: It is the acute spreading infammation of skin and subcutaneous tissue with local pain, swelling and erythema. It may be secondary to infection in surgery, burn or fungal infection in feet or toe.
C. Phil. Keuka College.