By L. Frillock. Nazareth College. 2019.
Slow waves are not always accompanied by bursts This is the most common variety of movement of the small of action potential spikes generic kamagra super 160mg erectile dysfunction treatment scams. It is characterized by closely spaced contraction of the absence (no spike) order kamagra super canada erectile dysfunction treatment in lahore, contraction is weaker or absent circular muscle layer buy kamagra super 160mg mastercard impotence webmd. The rate of segmental contraction is same as the fre- that they are localized to a short segment of the intes- quency of slow waves. Therefore, contraction is also localized to the num, 15/min in jejunum, and 12/min in ileum. Two nearby propulsive segments force the chyme mines the strength of muscle contraction, depends on toward each other into the receiving segment (Fig. They also bring the fresh chyme into the contact with the enteric neurons and the circulating hormones. Therefore, segmentation movements are also called thetic stimulation inhibits intestinal contractility. Bringing the chyme in contact with the absorptive tions of circular smooth muscles of the small intestine. In fact, peristaltic wave spreads These functions are achieved by various small intesti- in both directions. The motilities are segmentation, peristalsis, (oral spread) dies out after a short distance, and wave 414 Section 5: Gastrointestinal System 3. On the other hand administration of laxative for exam- ple castor oil produces the reverse effect. Laxatives increase intestinal motility, and therefore, shorten the transit time of the intestinal content. This increases the delivery of chyme and water into the colon that A causes diarrhea. Other Motilities Migrating Myoelectric Motor Complex In the interdigestive phase, the pattern of motility of small intestine changes. There are bursts of intense electrical and contractile B activity, once in about every 90 minutes. These contractions alter the patterns of the mucosal Antiperistalsis results in vomiting. Such contractions help in mixing the luminal contents Short range peristalsis also occurs in the intestine, but less and also in bringing the fresh chyme in contact with frequently. Short range peristalsis along with segmentation con- traction decreases the net rate of propulsion of chyme Villus Contraction in forward direction. This allows the chyme to stay more time in intestine to called villus contraction. This is typically seen in upper part of the small intes- Clinical Significance tine. Administration of codeine decreases the motility of the central lacteals of the villi. The decreased motility also prolongs the transit Intestinal Reflexes time for the intestinal contents so that more water and nutrients are reabsorbed. Therefore, this also There are two reflexes observed in the intestine: intestino- decreases the volume of stool. Ileocecal sphincter is also controlled by extrinsic nerve When a part of the intestine is over-distended, the rest fibers. This is called intestinointestinal by vagal stimulation as seen in gastroileal reflex. When the intestine is injured, excessively handled or mis- This increases entry of contents of ileum into the colon handled, the smooth muscles of the intestine are inhib- through ileocecal sphincter. This helps in propagation in the small intestine (6–8 hours later) followed by of ring of contraction in aboral direction. This response in the stomach (8–12 hours) and finally in the colon is known as law of the intestine. This occurs due to increased discharge of non-adren- Function of the Ileocecal Sphincter ergic fibers in the splanchnic nerves. Normally, the ileocecal sphincter is tonically contracted, Severe abdominal cramps are experienced in localized and therefore the sphincter remains closed most of the obstruction of small intestine. When a peristaltic wave reaches the terminal part of gets filled with fluid and gas. This increases the pressure the ileum, the sphincter relaxes so that the ileal con- inside the lumen that causes compression of blood ves- tent enters the cecum. Distention of ileum also causes opening of ileocecal intestinal wall produces severe cramping pain. Abdominal cramps are also experienced in other dis- causes closure of the ileocecal sphincter. The primary function of small intestine is to adequately mix the chyme with intestinal and pancreatic juice. In examinations, “Describe the mechanism and significance of intestinal motitlites” may come as a Long Question. Understand the physiology of colonic movements, colonic reflexes, and their functions. Learn the physiological basis of Hirschsprung, disease, irritable bowel syndrome, diarrhea, and constipation. Colon constitutes about 90% of large intestine and about 2 liters of chyme per day from small intestine, its consists of ascending, transverse, descending, and sig- output is only about 200 mL. The objectives of colonic contractions are to mix the the ascending colon (refer to Fig. Small intestine receives chyme of meals sequentially the colon so that maximum contact occurs between with no mixing of individual meals, whereas large the chyme and the mucosal epithelium. On average the total transit time of chyme of a meal absorption of salt and water. In descending and pelvic colons: 12 hours bands are shorter than rest of the colon. From pelvic colon to rectum, the transit is very slow, the wall of the colon forms haustra (outpouchings). There are many gob- However, transit time depends on the fiber content of let cells. The colonic glands are small inward projections of the even be reduced to 6 hours through the entire gut. Colonic Movements Colonic movements include haustral contractions, propul- sive movements, mass peristalsis, and colonic reflexes. Propulsive Movements These are peristaltic movements that propel colonic con- Fig. Note, absence of villi, many goblet cells in the mucosal epithelium, outer longitudinal tents toward the rectum. Mass colonic peristalsis is a stronger peristaltic contrac- tion that forcefully pushes the contents from colon into the rectum.
Parathyroid gland atrophy and clinical associations placed this disease with the organ-specifc autoim- Historically kamagra super 160 mg low testosterone causes erectile dysfunction, observations relating to cell-mediated autoim- mune diseases cheap 160mg kamagra super erectile dysfunction prevents ejaculation in most cases. Antibodies against pituitary prolactin cells were mune phenomena in the pathogenesis of diabetes preceded frst shown in polyendocrine disease cheap kamagra super uk impotence or ed. Two-thirds of patients with short-duration juvenile-onset diabetes mellitus exhibited striking mononuclear cellu- pernicious An e m i A A n d Au t o i m m u n i t y lar infltrate, principally lymphocytes, in and around the islets of Langerhans at autopsy. In addition, many patients Pernicious anemia together with its associated gastric atrophy with type I diabetes mellitus had associated autoimmune were described between 1850 and 1870, and the therapeutic disorders. Next came the iden- Nerup and associates described inhibition of leukocyte tifcation of vitamin B12 as extrinsic factor and its structural migration in response to an extract of porcine insulin in dia- analysis (1948–1955). Delayed-type hypersen- sitivity was demonstrated by intracutaneous injection of the the recognition of pernicious anemia as an autoimmune insulin extract. Liver or kidney extracts and porcine insulin disease (1962–1965) was based upon the identifcation of had no effect on lymphocyte migration. Migration inhibition autoantibodies against gastric parietal cells and intrinsic fac- had no association with a history of insulin therapy. Studies tor, and the association between gastric antibodies and defec- by Huang and Maclaren demonstrated that cell-mediated tive absorption of vitamin B12. Other supportive evidence cytotoxicity could participate in the pathogenesis of type I was the association of this disease with other autoimmune diabetes. To establish the role of cell-mediated immunity in disorders, as well as the ability of prednisolone to facilitate type I diabetes, Buschard and colleagues reported passive regeneration of gastric mucosal atrophy. Studies of the intrinsic factor developed anti-intrinsic factor activity, and disease in this species have revealed the genetic basis for Schwartz demonstrated development of an inhibitor of hog transmission of the syndrome, the insulin-dependent feature intrinsic factor activity in the serum of patients treated with of physiologic abnormalities and the role of immune phe- this factor. It is anticipated that future studies from Tudhope and Wilson’s report that there was a differ- will reveal effector cells leading to β cell destruction and ent incidence of pernicious anemia in patients with thyroid the antigenic targets against which the immune attack is disease compared with the general population. Following the successful introduction of antibiotic therapy for tuberculosis, Irvine and colleagues found positive complement fxation reac- most Addison’s disease cases were found to be due to autoim- tions using sera from pernicious anemia patients and gastric mune destruction of the adrenal cortex. He also demonstrated serological cross- of Addisonian patients demonstrated antibodies reactive with reactivity between individuals with pernicious anemia and adrenocortical cells in all three layers. Immunofuorescence was employed demonstrated the infuence of genetic predisposition in subsequently to demonstrate that the reactive antigen in per- development of this disease. Antibodies against steroid cells nicious anemia was that associated with parietal cells. Subsequent studies were directed toward antibodies against intrinsic factor reactive in vitro. Two different antibod- Milgrom and Witebsky and Witebsky and Milgrom differenti- ies were shown to react with separate reactive sites on the ated clearly between antigens of the adrenal medulla and cortex molecule and were referred to as blocking and binding in their investigations of experimental immune adrenalitis. Whereas parietal cell antibody was shown by History of Immunology 47 immunofuorescence in 90–95% of pernicious anemia cases, be positively correlated with disease activity. It was then suggested that antibody against intrinsic tions, such as the low titers found in acute viral hepatitis. Subsequently, these antibodies were Mackay and Burnet set up criteria for the diagnosis of auto- found also in some chronic active hepatitis patients. The fuo- immune diseases that included the following: rescent antibody technique was found to be useful for detec- tion of both smooth muscle and mitochondrial antibodies. Hypergammaglobulinemia Other antibodies found in liver disease included antinuclear 2. Lymphoid infltration of the affected tissue antibodies were characteristically seen in chronic active 4. Association of the disease with clinical and sero- against mitochondria, microsomes, cardiolipin, thyrogas- logical features of other autoimmune diseases in tric antigens, gammaglobulins, and erythrocytes. Immune that patient and/or blood relatives complexes did not appear to contribute signifcantly to hepa- tocellular damage in chronic active hepatitis. The central question in autoimmunity has liver diseases, efforts were made to show a role for cell- always been whether autoantibodies are the cause or result of mediated immunity, which was suggested by the histologic a given disease process. In the case of pernicious anemia, a appearance of lymphocytes, histiocytes, and large pyroni- positive correlation was demonstrated between the presence nophylic cells in liver sections from patients with certain of gastric antibodies and impaired vitamin B12 absorption. In vitro studies included lymphocyte stimu- For further details concerning the history of pernicious ane- lation by plant mitogens or hepatic tissue antigens. Soborg mia, the reader is referred to the review article by Mackay and Bendixen showed cell-mediated immunity by use of and Whittingham. Most of 34 untreated chronic active hepatitis patients showed positive in vitro correlates of cell-mediated immunity. Bacon and co-workers found evidence of cell- ies against liver could be induced following hepatic injury. Mackay and co-workers Au t o i m m u n e ne u r o l o g i c di s o r d e r s reported fve more cases, including predominantly females with hypergammaglobulinemia. Occasional indi- ent, they termed the condition lupoid hepatitis, which they viduals who received the Pasteur vaccine for rabies virus, fol- believed to be the result of autoimmunization. This was induced by an immune ity with saline extracts of human tissues, especially liver and response against the nervous tissue in which the virus was kidney. They observed a close similarity between this experi- Johnson and associates reported smooth muscle antibodies in mental disease and the encephalomyelitis found in occasional chronic active hepatitis patients. Beutner and Jordan found that serum from patients killed at daily intervals beginning on the ffth day, which per- with pemphigus vulgaris contained an antibody reactive with mitted the investigators to show that lymphocytes and small intercellular substances of stratifed squamous epithelium. Normal skin adjacent to a blister of one pemphigus patient exhibited gam- They observed that many of the cells remained close to maglobulin in the intercellular space. Subsequent studies the vessel where they originated, either in meninges or in by these authors and others confrmed deposition of an IgG Virchow–Robin spaces. Yet many others migrated into the antibody in involved as well as in uninvolved areas of skin. Chorzelski and colleagues described antibodies in 23 of 35 the infltrating cells then underwent progressive metamor- patients with active pemphigus. They showed that antibody phosis into typical histiocytes, which Waksman and Adams titers decreased as some patients responded to therapy. By suggested were directly responsible for demyelination in areas contrast, exacerbations of the disease were noted in con- of infltration. The authors emphasized the sue was shown to be mediated by cells, an observation which signifcance of performing serial serologic tests in patient was supported indirectly by failure to correlate the presence treatment. Subsequently, thymectomy was found Immunohematology is the study of blood group antigens and to improve the clinical status of some myasthenic patients antibodies and their interactions in health and disease. Both with thymic tumor, even though it would be more than a half the cellular elements and serum constituents of the blood century before Good and associates and Miller described the have distinct profles of antigens. Recent of blood cell groups, all of which may stimulate antibodies research has focused on whether the physiological defect and interact with them.
History of fever in the recent past order generic kamagra super from india erectile dysfunction caused by nicotine, accompanying kamagra super 160 mg visa erectile dysfunction treatment exercise, focus of infection generic kamagra super 160mg with amex erectile dysfunction treatment electrical, ear discharge may point to a central nervous system infections or parainfectious process. History suggestive of seizures, trauma–accidental or non-accidental, possible drug overdose, or other organ system diseases (hepatic, renal, hematologic, connective tissue disorder) need to be enquired. Past history of such episodes, abnormal odor of breath or urine and/or family history should make one consider inborn errors of metabolism. Vitals-to look Temperature-raised in infections/hypothalamic dysfunction, low in septic shock. Pulse rate, capillary refill time, colour; Tachycardia–Early identification of shock and treatment. General physical examination Pallor–intracranial bleed, Jaundice–hepatic encephalopathy, Scalp bruise, ear/nose bleed–head injury. Odor of breath–sweet in diabetic ketoacidosis, musty in hepatic, ‘Urine like’in uremic. States of impairment of consciousness with reduced mental state (Plum and Posner) include: Obtundation-reduced alertness or interest in surroundings; Stupor-arousable sensorial depression. The period of unconsciousness should persist for at least 1 hour to distinguish from syncope, concussion, etc. Minimally conscious state–state of severely altered consciousness in which the person demonstrates minimal but definitive behavioral evidence of self or environmental awareness, viz. It is not useful in paralyzed and sedated patients and cannot be used in young children or infants. Fundus–to look for papilledema, retinal hemorrhages, changes of hypertensive retinopathy. Infratentorial destructive or mass lesions • Preceding brainstem dysfunction • Sudden onset of coma • Cranial nerve palsies • Early respiratory disturbances. Toxic, metabolic or infectious disease • Confusion or stupor precedes motor signs • Motor signs symmetric • Pupillary reactions preserved till late • Asterixis, myoclonus, tremor or seizures • Hyper/hypoventilation. Blood sugar, electrolytes, blood gas arterial lactate, ammonia (elevated in hepatic dysfunction, Reye’s syndrome, urea cycle defect, organic acidemias). Uni/l bilateral hypodensities in frontotemporal areas with occasional hemorrhage are seen. Respiration Normal Cheyne-stokes; Central Ataxic- Gasps hyperpnea neurogenic irregularly alternates with hyperventilation; irregular apnea fast and deep 2. Oculovestibular † Nystagmus Full deviation, Minimal deviation eyes towards of eyes No movement 7. Pupil size and Normal, brisk Unilaterally Small, pinpoint, Midpoint, Pinpoint, Bilaterally reaction (bright torch) dilated, not reacting fixed to light reactive but dilated, fixed reacting difficult to (do not appreciate constrict with miotic agents) *Oculocephalic–exclude cord injury and turn head side to side, with intact brainstem eyes would look away from the side of head turning † Oculovestibular–exclude perforated eardrums, head in midline and 30° elevated, inject 20 ml ice cold water into ear canal, with intact brainstem eyes would look towards the side of instillation orbital surface of frontal lobe, medial part of temporal lobe, insular cortex and cingulate gyrus; hemorrhage may also be seen. Meningeal and gyral enhancement may be present especially in neonates and children. Minimal handling, Care of eyes to prevent exposure keratitis, Frequent change of position to prevent pressure sores. Minimize painful stimuli– Adequate sedation and analgesia (benzodiazepines and opioids by infusion or frequent boluses). Ensure adequate intravascular volume (use of normal or N/2 saline with added glucose in full maintenance doses and with concomitant monitoring of arterial and central venous pressure) and correct shock with fluid and inotropes. Restriction of fluids was not associated with better outcome in randomized controlled trials. Pulse high dose steroids if imaging suggestive of acute disseminated encephalomyelitis. Quinine in suspected cerebral malaria (endemic area, significant pallor with hepatomegaly or retinal hemorrhages or suggestive laboratory investigations). Antidotes-Atropine for organophosphates, naloxone for opioids, flumazenil for benzodiazepines. Outcome and Predictors Mortality 19-35%; depends on cause, depth and duration of coma. Outcome is better in traumatic than non-traumatic coma, worse after hypoxic ischemic insult /cardiac arrest. Consciousness rating scales allow objective and reproducible assessment of consciousness and can be used to monitor the change in sensorium with time and in response to therapy. Good supportive care and measures to reduce intracranial pressure if raised is warranted. Empirical treatment with antibacterial, antivirals and antimalarial in endemic areas may be started in a sick child pending investigation reports. Management of meningitis in children with oral fluid restriction or intravenous fluid at maintenance volumes: a randomized trial. Whenever one compartment expands, another has to reduce its volume proportionately for the pressure in the compartment to remain the same. It drains into the venous system via the arachnoid villi and granulations in a system of low resistance. Under physiological conditions, this drainage is almost completely dependant on the central/jugular venous pressure. The inability to accommodate even small pulsatile changes in cerebral blood volume is reflected in the waveform. They occur suddenly, reach levels of 50-100 mmHg and can last from minutes to hours. Lundberg B waves are smaller and shorter and not dangerous but harbingers of worse to come. However, if the plateau lasts for too long, ischemia may be permanent and may even lead to severe global neuronal death. SjvO2 or jugular bulb saturation of oxygen, like SjvO2, is an indicator of oxygen extraction of the brain and can be used in a similar manner. However, nitroprusside may also dilate the intracranial vessels and is best avoided. The risk of infection increases dramatically after 5 days and many consider that prophylactic antibiotics are indicated to lower the risk. It is continuously measured at the level of jugular bulb, in the returning blood from the brain, by a fiberoptic O2 saturation catheter. It would be naïve to suggest that these sophisticated and expensive methods are the answer to the problems related to head injury in our country. We would first have to deal with the ground reality of getting the child quickly and safely to a medical care facility where we could apply even the basic tenets of care for the injured child appropriately. Hemodynamic characterisation of intracranial pressure plateau waves in head-injured patients. Determination of threshold levels of cerebral perfusion pressure and intracranial pressure in severe head injury by using receiver operating characteristic curves: An observational study in 291 patients. Asymmetry of intracranial hemodynamics as an indicator of mass effect in acute intracerebral hemorrhage: A transcranial Doppler study.
The flexor digitorum superficialis and profundus tendons and the volar plate are identified generic kamagra super 160mg mastercard erectile dysfunction disorder, and the ultrasound probe is slowly moved slightly proximally and distally until the strap-like A1 pulley is identified as a thin hyperechoic band lying just superficial to the flexor tendon (Fig effective 160 mg kamagra super impotence fonctionnelle. To aid in identification of the A1 pulley purchase kamagra super 160mg otc erectile dysfunction doctor washington dc, it is sometimes helpful to visualize the pulley’s lateral expansions by slightly inclining the transverse- oriented probe to eliminate the anisotropic artifact that may cause these expansions to appear hypoechoic if the probe remains at a right angle to the expansions (Fig. When the A1 pulley is identified, the patient is asked to flex and extend the finger under real time ultrasound imaging in both the transverse and longitudinal planes and the tendons are observed for tendinosis, defect, swelling, nodules, and triggering phenomenon (Fig. After dynamic assessment of the tendon is completed, a careful sonographic examination of the tendon to identify the pathology responsible for the triggering phenomenon is undertaken (Figs. Foreign bodies that may be causing impingement on the tendon are also identified (Figs. B: Proper transverse position for the linear high-frequency ultrasound transducer to perform ultrasound evaluation of trigger finger. Transverse ultrasound image demonstrating the relationship of the A1 pulley, the tendons of the flexor digitorum superficialis and profundus, the volar plate, and the metacarpal. Inclining the transversely placed transducer may aid in identifying the A1 pulley and its expansions. Longitudinal ultrasound view of the metacarpophalangeal joint demonstrating tendinosis of the flexor tendon. Longitudinal ultrasound image of the metacarpophalangeal joint demonstrating a nodule of the flexor tendon in a patient with trigger finger. Transverse ultrasound image demonstrating a large nodule of the lateral superficial portion of the flexor tendon in a patient with trigger finger. Longitudinal ultrasound image pf the proximal interphalangeal joint demonstrating multiple nodules under pulley. Transverse ultrasound image demonstrating tenosynovitis of flexor tendons just proximal to metacarpalphalangeal joints. Transverse ultrasound image demonstrating tendinitis of the flexor tendons of the hand proximal to the A1 pulley. Transverse ultrasound image demonstrating flexor tenosynovitis at the level of the metacarpals. Longitudinal image of an abnormal flexor pollicis longus tendon demonstrating a markedly edematous, thickened, hypoechoic tendon (thick white arrows) with a frank tear coursing through the midsubstance of the tendon (small thin white arrows). Sonogram longitudinal to extensor hallucis longus tendon (arrowheads) shows normal fibrillar echotexture. Note direct impingement from adjacent screw head (arrow) with posterior reverberation artifact away from adjacent tendon. Ultrasound-guided injection for trigger finger can often provide rapid symptomatic relief. Careful examination to identify preexisting tendon ruptures that may later be attributed to the procedure should be performed on all patients before beginning ultrasound-guided injection for trigger finger. The effect of corticosteroid injection for trigger finger on blood glucose level in diabetic patients. The primary function of the palmar fascia, which is also known as the palmar aponeurosis, is to provide firm support to the overlying skin to aid the hand in gripping, as well as to protect the underlying tendons (Fig. Stage 1 is typically characterized by a small lump in the palm of the hand, usually just under the digit on the palmar crease. Early symptoms include tender fibrotic nodules along the course of the flexor tendons of the hand, although the nodules actually arise from the palmar fascia rather than the flexor tendons themselves. As the disease progresses to stage 2, these isolated nodules begin to coalesce and surround the flexor tendons, which draws the affected fingers into a characteristic posture of flexion. Untreated, the disease will progress to stage 3, in which the affected fingers have permanent flexion contractures and are unable to straighten, causing significant functional disability. Early symptoms of Dupuytren contracture are tender fibrotic nodules along the course of the flexor tendons of the hand, although the nodules actually arise from the palmar fascia rather than the flexor tendons themselves (Figs. Although the ring and little fingers are most often affected, all fingers can develop the disease. As the disease progresses, these isolated nodules begin to coalesce and surround the flexor tendons which draw the affected fingers into a characteristic posture of flexion (Figs. Untreated, the disease will progress until the affected fingers develop permanent flexion contractures which cause significant functional disability (Figs. The nodule present on the hand of both the patient (right) and his grandmother (left). The characteristic flexion contracture of the fourth and fifth digits of Dupuytren contracture. Note the permanent flexion contracture of the ring and little finger after attempted surgical repair. A biochemical pathogenesis has been hypothesized which suggests that excess deposition of Type I collagen combined with abnormal myofibroblast formation and increased levels of beta-catenin are responsible for the disease. Dupuytren contracture occurs most commonly in males of northern European descent with a 540 gender predilection approaching ten males for every female affected. The disease is often bilateral and can occur in conjunction with plantar fibromatosis which is also known as Ledderhose disease (Fig. Diabetes, smoking, cirrhosis of the liver, chronic barbiturate use, trauma to the palmar fascia, and alcoholism are risk factors. Magnetic resonance imaging of palmar (Dupuytren contracture) and plantar (Ledderhose disease) fibromatosis. A: Sagittal T1-weighted image of the right foot demonstrating nodular soft tissue masses in the distal plantar fascia, which are isointense to muscle (arrows). B: Sagittal T2-weighted image of the same foot showing plantar nodules that are of heterogeneously high signal intensity (arrow). Short-axis T2 fast spin echo shows focal nodular low signal intensity on the ulnar aspect of the palmar aponeurosis (arrow). As the disease progresses, taut, fibrous bands that may cross the metacarpophalangeal joint and ultimately the proximal interphalangeal joint are noted on physical examination, clarifying the diagnosis. As the functional disability associated with limitation of finger extension progresses, the patient will seek medical attention due to difficulty on putting on gloves or reaching into their pockets. Plain radiographs of the hand are indicated in all patients suspected of suffering from Dupuytren contracture to rule out occult bony pathology and to identify calcific tendinitis. Based on the patient’s clinical presentation, additional testing may be indicated, including complete blood cell count, uric acid, sedimentation rate, and antinuclear antibody testing. Magnetic resonance imaging and ultrasound imaging of the hand is indicated to assess the status of the affected tendons and tendon sheath as well as to identify other occult pathology including arthritis, sesamoiditis, and synovitis (Fig. With the patient in the above position, the fibrous cords of the affected fingers are identified by palpation on the palmar surface of the hand just proximal to the metacarpophalangeal joint. A high-frequency linear ultrasound transducer is then placed in a longitudinal position just proximal to the metacarpophalangeal joint of the affected finger and an ultrasound survey scan is taken (Figs. The affected flexor digitorum superficialis and profundus tendons and the surrounding fibrous plaques are identified (Figs. Color Doppler may help identify intralesional vascularity of the abnormal tissue (Fig. The surrounding area is then evaluated for other abnormalities including synovitis, tumors, sesamoid bones, aneurysms, lipomas, and ganglion cysts that may be contributing to the patients pain and functional disability (Fig. Proper patient position for ultrasound-guided injection for Dupuytren contracture.
This would be patients facilitated by a register of patients served in the population buy kamagra super from india what food causes erectile dysfunction, and we recommend that this be started wherever possible generic 160 mg kamagra super free shipping erectile dysfunction at the age of 28. In such cases buy kamagra super with amex can erectile dysfunction cause infertility, the approach to management is divisible into Information provision and links with local support groups The epi- two clearly distinct phases: assessment and treatment (Table 11. Faced with a new presentation of chronic epilepsy, the physician should gather and document information with which to form the Research and teaching The epilepsy clinic is well suited to clinical basis of future recommendations for treatment. The following fac- research and teaching both for medically trained personnel and tors should be assessed – this list of factors is not exhaustive but is professions allied to medicine. The centre would be a natural setting the minimum required before considering therapy. Services for children require ad- It may be surprising to know that 20% or more of patients referred to ditional features, and are not considered here. In addition, it was neurology clinics with chronic epilepsy do not in fact have epilepsy concluded that epilepsy surgical facilities should be provided in a at all . Many diferent conditions may be confused with epilep- small number of selected regional centres, and the particular facili- sy, but the most common are psychogenic seizures, refex syncope ties that are required are outside the scope of this chapter. As emphasized there, an eye-witness account of the attacks should be obtained and will usually be diag- Treatment approach for chronic active nostic. A detailed description of therapy sibility that the attacks are non-epileptic, although this is not an in specifc epilepsy syndromes can be found elsewhere in this book. A video recording of an attack is extremely helpful Also, the special considerations in treatment of specifc patient in deciding its nature, and many patients are now able to have their groups such as children, the elderly, those with learning disabilities, attacks recorded on a mobile phone. Such recordings ofen obviate in pregnancy and in those with comorbidities are discussed in the the need for video-telemetry and it is surprising how ofen a short relevant chapters. Here, the approach to therapy in a typical outpatient case of non-syndromic adult chronic epilepsy is outlined, as these cas- Establishing the aetiology of the seizures es make up the bulk of those attending specialist epilepsy clinics The cause of the epilepsy must be established . Of course, individuals have diferent requirements and conditions require therapy in their own right, and the prognosis therapy should be tailored to individual need. Nevertheless, broad and response to therapy of the epilepsy are strongly infuenced by 144 Chapter 11 its cause. The plan should be devised to trial suitable antiepi- patient with chronic epilepsy without a known cause, and not infre- leptic drugs in turn, in a reasonable dose, singly or as two-drug (or quently will reveal a previously undetected cause [29,30]. The sequence of drugs to be apy of epilepsy is ofen uninfuenced by the cause but establishing tried should be clearly documented and discussed with the patient. The procedure should be explained in advance to maintain apeutic approach should be. Ideally, each antiepileptic drug should be tried in a reasonable dose added to a baseline drug regimen (usu- Classifying seizure type and syndrome ally one or two other antiepileptic drugs) which does not change. As is noted repeatedly throughout this book, epilepsy is a high- The duration of the trial will depend largely on seizure frequency, ly heterogeneous condition, and varies considerably in form and and the higher the frequency the shorter the trial. It is important to classify formally the seizure type and, cussed further in Chapter 9. The choice of drug for each seizure type is dis- reduction), which drugs to trial and in what sequence, which drugs cussed in detail in Chapter 27. Documenting previous treatment history The response to an antiepileptic drug is ofen relatively consistent Choice of drug to trial over time. A knowledge of the previous treatment history therefore is The choice of drugs is discussed in detail in Chapter 27 , and other vital to the formulation of a rational treatment plan. It is important to ascertain what previous drugs have been tried, at The drug should usually be one that has not been used before, or what dose (if possible), for how long, in what combinations and with not previously used in optimal doses, or which has been used and what result. The initial dose and maximum Reviewing compliance incremental increases in dose in routine practice are shown in Poor compliance can also be a reason for poor seizure control, and Chapter 9. A Drug choice is an individual decision for a patient to make and drug should not be presumed to be inefective if it was taken errat- will depend on on factors related to patient variables, epilepsy var- ically. People difer in their will- ingness to risk adverse efects or to try new therapy, and patients’ Identifying and treating other factors and comorbidities preferences should be overriding factor in dictating choice. The role The comorbidities of epilepsy can infuence markedly the response of the physician is to provide sufcient information for the patient to therapy. Choice of drug to retain as the baseline regime It is usual to aim for therapy with either one or two suitable antie- Treatment pileptic drugs. If drugs are being withdrawn, it is wise to maintain Treatment of chronic epilepsy (as all epilepsy) should be based on one drug as an ‘anchor’ to cover the withdrawal period. The advan- balancing the benefts of therapy against the potential risks – and tages and place of monotherapy versus polytherapy are discussed where to strike this balance is a personal decision for each patient. The role of the physician in this regard is to provide estimates of the potential benefts and risks and to discuss these with the patient . The sudden reduction in dose of an Personal patient-related factors antiepileptic drug can result in a severe worsening of seizures or Age and gender in status epilepticus – even if the withdrawn drug was apparently Comorbidity (physical and mental) not contributing much to seizure control. Experience from telemetry units suggests that most with- Emotional circumstances drawal seizures have physiological features similar to the patient’s Attitude to risks of seizures and of medication habitual attacks. This caution applies particularly to barbiturate Factors related to the epilepsy drugs (phenobarbital, primidone), benzodiazepine drugs (cloba- Syndrome and seizure type zam, clonazepam, diazepam) and to carbamazepine. The only advantages to fast withdrawal Factors related to the drug are better compliance and the faster establishment of a new drug Mechanism of action regimen. If the withdrawal Strength and nature of side-effects period is likely to be difcult, the dangers can be reduced by cov- Formulation ering the withdrawal period with a benzodiazepine drug (usually Drug interactions and pharmacokinetic properties 10 mg/day clobazam), given during the phase of active withdrawal. Cost A benzodiazepine can also be given if there is clustering of seizures following withdrawal. It is not It is sometimes difcult to know whether seizures during with- comprehensive, and the importance of factors will vary from individual to drawal are a result of the withdrawal or simply the background individual. Whenever possible, a long-term view should be taken and over-reaction in the short-term reaction to seizures should be likely to be involved in drug–drug interactions are carbamazepine, avoided. Drug addition Epilepsy surgery New drugs added to a regimen should also be introduced slowly, at Resective or functional surgery for epilepsy should be considered least in the routine clinical situation. This results in better tolerabili- in any patient with epilepsy not responding to drug therapy and if ty, and is particularly important when adding benzodiazepines, car- the potential benefts are considered to outweigh the potential risks bamazepine, lamotrigine, levetiracetam, primidone or topiramate. This assessment is complex and presurgical evalua- Too fast an introduction of these drugs will almost invariably result tion should be carried out in an experienced epilepsy surgery unit. It is usual to aim initially for a low maintenance dose The elements of assessment are given in Section 4 of this book, but in severe epilepsy higher doses are ofen required. It is a multidisciplinary process, involving neurologist, neurosurgeon, Concomitant medication psychologist, psychiatrist, neurophysiologist and radiologist. On- Changing the dose of one antiepileptic (either an increment or ward referral to a specialized unit should be made for all patients in a decrement) can in many instances infuence the levels of other whom surgery is considered an option. Limits on therapy Terapy will fail to control seizures in the long-term in about 10–20% Serum level monitoring of all patients developing epilepsy, and a higher proportion of those For drugs whose efectiveness and/or side-efects are closely linked to serum level – notably phenytoin, carbamazepine and phenobar- Table 11. Monitoring serum level is particularly important in the case • Nature of epilepsy of phenytoin, which has a non-linear relationship between dose and • First aid management of seizures serum level.