H. Nafalem. DePaul University.
Remove – gum with benzene or ether and discard the forceps 147 • Place sterile gauze to receive pleases or sutures order sildalis with a visa causes of erectile dysfunction and premature ejaculation. Clips Definition: Metal suture used to stitch the skin Purpose Some as suturing with stitch Equipment • Michel clip applier • Tissue forceps (toothed dissecting forceps • Cleaning material- same as stuttering with stitch order discount sildalis line erectile dysfunction testosterone. Procedure The first part of procedure is the same as for suturing with stitch Except that instead of suturing the skin with thread and needle you would apply clips with the applier order line sildalis erectile dysfunction doctor specialty. Removal of Clips Technique Use aseptic technique 148 Equipment • Sterile gauze • Sterile cotton balls • Sterile kidney dish • Sterile forceps 3 • Sterile clip removal forceps • Antiseptic solution (Savalon 1% and iodine) • Receiver • Benzene or ether • Adhesive tape or bandage Procedure Explain procedure to the patient and organize the needed equipment • Drape and position patient • Protect bedding with rubber sheet and its cover • Remove old dressing and discard order discount sildalis online erectile dysfunction causes agent orange. Pre-operative Purpose • To prepare the patient emotionally, mentally and physically for surgery. Equipment As necessary • It is important that the patient be in a good state of physical health before he has surgery. Try to relieve his fears about the operation and any fear of death: explain to him what will be done and that every measure will be taken for his safety. If the surgery is on the face, neck, shoulders or upper chest, the hair should be the roughly washed, combed and tied up to keep it from touching the operative area. Any thing abnormal such as pain, fever cough rapid pulse or elevated blood pressure must be reported immediately. Just before surgery • Just before it is time to take the patient void, if he is unable to void inform the doctor. The patient may be very sleepy or dizzy from the preoperative medications and may hurt himself. Shaving Purpose To minimize the danger of infection by decreasing the number of bacteria on the skin. Specific Area to be Shaved: Head Operations • Explain the reason for having the head to the patient 154 • If the hair is long, it must be cut short • Wash the head and hair well • Shave the area of the operation as directed. Face Operation • Shave the side of the face there the operation will be • If the patient is a man, make sure that the face is completely free from beard. Anterior Neck Operations: • Wash the patient’s head and neck • If the patient is a woman, tie her hair, and keep it away from her neck, or cut it short. Breast Operations • Shave the anterior and posterior chest from neck to the waist line on the side where the surgery will be • Shave the axilla on that side and the arm as far down as the elbow. Abdominal operations • Shave the whole abdomen from the end of the sternum down to the pubes. Equipment • Anesthetic bed • Oxygen • Sphygmomanometer • Stereoscope • Suction machine (as needed) • Extra rubber sheet (as needed) • I. V stand • Emergency drugs (to be ready in wards) • Bed blocks (as needed) for shock Procedure • Prepare anesthetic bed (see section on bed making) • Assist operating room nurse or health assistance in planning patient in bed. An unconscious patient may be placed on either his right or left side unless his right or left side unless specifically o Orders. Charting • Time of return • General condition and appearance ⇐ State of consciousness ⇐ Color of skin ⇐ Temperature of skin to touch ⇐ Skin- moist or dry ⇐ Blood pressure, plus and respiration ⇐ Any unusual condition such as bleeding drainage, Vomiting etc. Generals Instructions • If patient shows any signs of shock immediate action should be taken and then be reported to the doctor. The head of the bed should be lowered (If no gatches on bed, bed blocks may be used) • Do not leave unconscious patient alone. Breast Surgery • Encourage deep breathing often, because of danger of pneumonia • Special arm exercises should be given Abdominal Surgery • Encourage deep breathing • Turn from side to side often st • Sit patient on edge of bed 1 day postoperatively and • Start walking second day post operatively (unless contra-indicated) • Intake and output should be recorded • If gastric suction is present make sure it is working properly • Frequent mouth care for patients who are not allowed to drink. Eye Surgery • Must lie very still because the incision and sutures can be damaged by pulling on the eye muscles. Spinal Surgery • Must lie on abdomen of back with bed flat, and supported by fracture board mattress. This will make it easier to breathe since the pressure of dressing and swelling may give choking feeling. Tonsillectomy Child • Lie on abdomen or side to prevent blood drainage into throat, lunge or stomach. Adult • If conscious, he may sit in semi- fowler’s positron in order to spit the blood more easily. List some important equipment to provide care for immediate postoperative patients. Legal death is the total absence of brain activities as assessed and pronounced by the physician. If the dying patient is in a ward, move him to a room where there are no other patients, if possible, if this is impossible, put screen around his bed. To show kindness to the family Equipment • Basin for water, wash cloth and towel • Cotton • Gauze • Dressings and tape if necessary • Clean sheet • Stretcher • Forceps • Name tag • Gloves, if necessary Procedure • Note the exact time of death and chart it • If the doctor is present call him to pronounce death • If the family members are not present, send for them • Wash hands and wear clean gloves according to agency policy • Close doors to room or pull curtain • Raise bed to comfortable working level (when necessary) • Arrange for privacy and prevent other patients from seeing in to room. Autoclave Equipment that decontaminates materials by exposing them to steam under pressure. Asphyxia A condition produced by prolonged lack of oxygen Asepsis Absolute freedom from all microorganisms Antiseptic Harmless chemicals that can kill microorganisms or prevent them from multiplying. Aseptic technique Procedure used to prevent microorganisms from reaching the operation site. Blood pressure The force exerted by the heart to pump the blood around the body Bradycardia Abnormally slow heartbeat. Cyanosis Bluish color of lips, tip of the nose, and ear lobes due to lack of or shortage of oxygen in the blood. Congestion Hyperemia, accumulation of blood in a part of blood or fluid in a part of the body e. Detergent A substance usually dissolved in water used as an aid for cleaning purposes. Diagnosis The decision regarding the nature of an illness, arrived at by clinical assessment of the patient and result of investigation. Dry heat Air heated to high temperature by electricity and used for sterilizing purposes. Edema Swelling due to water accumulation in body cells Enema An injection of fluid into the colon or rectum. Fahrenheit System of measuring heat 0 Fever Body temperature elevation above 37 C Flatus Gas in the intestines. Foot board A board placed at the foot of the bed to support the feet Gastrostomy Making an artificial opening into the stomach through which the patient is fed by pouring 166 nourishment through a tube directly into the stomach. Inflammation Reaction of the body to infection or injury, characterized by redness, heat, pain, and swelling at the site. Mitered corner A triangular fold made in bedclothes to hold them in place at the corners. Orthopnea A condition in which one breathes easier in a sitting position Pediculosis Human louse infestation Postural drainage Position adapted to facilitate expectoration of material in patients with lung disease. Preoperative Before an operation Pulse The beat of the heart felt in the arteries. Retention enema An injection of fluid that is retained in the rectum for absorption into the blood stream. Splint A device for immobilizing part of the body Spore The seeds of microorganisms, which are resistant to drying, heat, and disinfectants Sterile Specially treated so that all microorganisms are destroyed Stethoscope Instrument for magnifying sound Specimen A small amount of body excretion or body fluid that is sent to a laboratory for examination. Suppository Rectally administered cones containing a medication in the base that is soluble at body temperature. Systole Blood pressure period during the beating phase of the heartbeat during which blood is expelled from heat. Activation of medulla causes a contraction of the diaphragm and intercostal muscles leading to an expansion of thoracic cavity and a decrease in the pleural space pressure. The diaphragm is a dome-shaped structure that separates the thoracic and abdominal cavities and is the most important muscle of inspiration. When it contracts, it moves downward and because it is attached to the lower ribs it also rotates the ribs toward the horizontal plane, and thereby further expands the chest cavity. In normal quite breathing the diaphragm moves downward about 1 cm but on forced inspiration/expiration total movement could be up to 10 cm. When it is paralysed it moves to the opposite direction (upwards) with inspiration, paradoxical movement. When they contract the ribs are pulled upward and forward causing further increase in the volume of the thoracic cavity. As a result fresh air flows along the branching airways into the alveoli until the alveolar pressure equals to the pressure at the airway opening. However, when a great deal of air has to be removed quickly, as in exercise, or when the airways narrow excessively during expiration, as in asthma, the internal intercostal muscles and the anterior abdominal muscles contract and accelerate expiration by raising pleural pressure. Pleura covering the surfaces of the lungs (visceral) or the thoracic cavity (parietal) together with a thin (20 µm) layer of liquid between them create a liquid coupling. The pressures and the pressure differences of the respiratory system are expressed as relative pressures to the atmospheric pressure. When it is said that alveolar pressure is zero, it means that alveolar pressure = atmospheric pressure. If one excises animal lung and places it in a jar, one could measure the changes in volume with a spirometer through a cannula attached to the trachea. When the pressure inside the jar below atmospheric pressure, the lung expands and the change in its volume is measured and the pressure- volume curve is plotted. When there is no pressure distending the lung there is a small volume of gas in it. As the pressure in the jar is gradually reduced, the volume of the lungs increases. This is initially a rapid event but after a certain pressure the changes become less evident. It means that the lung is stiffer when it is expanded and thereby, the pressure-volume curves during inflation and deflation are 4 different = hysteresis. Another important point is the volume at a given pressure during deflation is always larger than during inflation.
As mentioned early discount generic sildalis canada erectile dysfunction treatment urologist, there is no definite order sildalis 120 mg with mastercard impotence nerve damage, effective or quick way to improve memory buy sildalis 120mg with mastercard erectile dysfunction treatment with viagra; however the method given above is time tested method to improve memory performance for students as well as other people purchase cheap sildalis online erectile dysfunction treatment germany. If there is an infection in the nose and the ears with pus discharge, throat infection, infectious boils on the face, pus in the other body parts like the chest or septicemia, then there is a possibility of infection in the brain. It is not possible to describe all these diseases here, but some important diseases will be discussed. Tuberculosis of the Brain : Usually, tuberculosis infection of the brain comes from other parts of the body like lungs or stomach. Headache, low-grade fever, vomiting, loss of appetite, excessive weakness or anxiety are the initial symptoms of this disease. Gradually, seizures, paralysis of one or more limbs can occur and in advanced stage, coma due to the edema of the brain and even death may occur. F are obstructed, the result is hydrocephalus, in which the cerebral ventricles dilate leading to unconsciousness or loss of eyesight. Diagnosis : In order to diagnose this disease, a detailed medical examination as well as blood tests are required. Lumbar Puncture is almost an essential test for the confirmatory diagnosis of the infectious diseases of the brain. This accuracy is necessary because once the diagnosis is confirmed the patient requires proper treatment for a minimum of one and a half years to two years. F reports may sometimes present a picture of a viral or pyogenic infection and if there is a laxity in the treatment of any of the three infections due to lack of proper diagnosis, it could lead to dangerous consequences. In resistant cases, sparfloxacin or ciprofloxacin, kanamycin injection, ethionamide or cycloserine can also be used as secondary medicines. All these drugs have some or the other side effects and therefore along with the symptoms of the patient, laboratory tests are regularly carried out. In this case, a small tube is introduced in to ventricles of the brain through the skull, and the extra fluid is drained out through a tunnel beneath the skin up to the stomach via the tube. Symptoms range from high fever, severe unbearable headache, vomiting, pain in the posterior part of the neck and photophobia to ultimately unconsciousness, seizures and eventually death in a short time, in the absence of proper treatment. The various types of Gram-positive and Gram- negative bacteria that can rapidly cause harm to the brain are, meningococcus, staphylococcus, pneumococcus, streptococcus, listeria, H. An early diagnosis and treatment can cure the patient without any long-term disability or side effects. This allows the doctor to decide whether the medicines, which are prescribed prior to the test, are accurate or need to be changed. Thus, it is confirmed that the patient is definitely suffering from pyogenic meningitis and appropriate drugs are given after identifying the disease causing organisms. Drugs : If necessary drugs like cephalosporin, penicillin, vancomycin, gentamycin, chloramphenicol, metronidazole etc. All these medicines are very effective and 80 to 95 % cases can be cured if these drugs are used in appropriate dose and combination at an early stage. Usually, these medicines are given for 10 to 14 days continuously and if required, changes can be made on the basis of the culture report. Even if a little infection remains in the brain, there is a possibility of a recurrence of the disease in a short time. Increase in the swelling of the brain (raised Intracranial tension), seizure, hydrocephalus, subdural effusion or subdural empyema (abscess between the membranes of the brain) or brain abscess, hearing loss, venous thrombosis, vasculitis etc. This disease starts with low grade fever, headache, weakness, anxiety and therefore, initially it is not diagnosed and the disease advances in the absence of proper treatment leading to unconsciousness and seizures etc. These medicines have severe side effects on the kidney, liver, ears etc and thus should be administered carefully. Viral Encephalitis : This is an extremely fast spreading disease in which the patient gets fever, headache, sudden behavioural changes, depression, photophobia. This disease quickly damages the cells of the brain and many times leaves residual damage in the body, like memory loss, seizures or behavioral changes. Sometimes, the virus affects only the membranes of the brain causing viral meningitis, which is not a very serious disease in comparison. If the disease is diagnosed in the initial stage, immediate treatment can save life and disabilities, e. Similarly, there are some other viruses affecting the brain, they are called slow virus, and they destroy the brain cells slowly, in months and years. Medicines which are available are hardly effective and in most of the cases the patient is pushed to the brink of death. Falciparum Malaria : Malarial organisms are a part of the micro-organisms, but they are completely different from the virus and bacteria and belong to protozoa group. When the Anopheles female mosquito bites a human, along with the sting the sporozoites of the malarial parasite enter the blood stream and within a short period enter the liver cells. Ultimately, the cells of the liver rupture and innumerable merozoites enter blood and then enter the red blood corpuscles. When a female Anopheles mosquito bites a malarial patient and sucks the blood, gametocytes also reach the stomach of the mosquito and there, in the stomach new sporozoites develop, which enter the blood stream of another person through the sting of the mosquito. The rest of the merozoites, which are present in the blood cells continue with the process of development, division and growth. Eventually, these red cells also rupture and innumerable merozoites are released in the blood stream and enter other red cells. This is also the cause of anemia (pallor or decrease in the hemoglobin levels) after frequent bouts of malaria. Thus, malarial parasites continue their life cycle in female anopheles mosquito and humans and keep the disease as well as themselves alive. These malarial parasites infect all the stages of the red blood corpuscles (Vivax infects only the newly formed blood cells) 1 to 2% of the total blood cells get infected. Thus the number of infected blood cells is considerably more and the resulting anemia is also more severe. Blood Test for Confirmation of Diagnosis : If the required blood test is carried out carefully, malarial parasites are normally seen in the blood cells in a peripheral smear. In falciparum malaria, the proportion of malarial parasite being more they can be seen very easily in the blood test, but in vivax type of malaria the numbers being less, many times they cannot be seen. Many a times the blood tests are negative in a patient who has self medicated himself and has taken 2 to 4 tablets of chloroquin. If the fever is not cured even then, further investigations should be done to find out the exact cause and treatment given accordingly. It is said that in our country the main reason for the seizures in younger generation is the infection of a parasite named cysticercus, which occurs due to eating meat or unwashed salads. In this case along with the medicines to control the seizures, albendezole or praziquantel are also given in a proper dose by the neurologist. Avoiding meat and salads or if possible eating after washing properly and heating at low temperature can help avoid this disease. Tetanus : This disease occurs due to the toxin produced by a gram positive organism known as clostridium tetani. Finally, it starts affecting the respiratory system and the swallowing muscles and seizures also start. Sometimes when the tetanus limits itself to the wounds, the chances of recovery are more, but in the full blown cases of tetanus, the death rate is around 60% despite treatment. The patient is kept in a dark room and diazepam is given intravenously in proper dose to prevent seizures and spasms. There can be problems like irregular blood pressure, fever, or heart trouble due to the irregularities of the involuntary nervous system, which also have to be treated carefully. These are the general guidelines for the prevention of tetanus because every individual/case has different factors and thus it is for the doctor to decide the treatment for each individual case. This disease is unfortunately still prevalent in our country because of poor hygiene, illiteracy and ignorance. The lack of cleanliness and proper medical services in the villages, thousands of lives, to such a preventable disease. Poliomyelitis : This viral infection of the brain is caused by enterovirus and damages the anterior horn cell of the brain and the spinal cord, which results in handicap. Fortunately, rigorous vaccination drives have nearly eradicated this disease from the face of the earth. Rabies : Rabies is a dangerous viral disease affecting the brain,, which is contracted by the bite of any warm-blooded animal like a dog, monkey, fox etc. In the initial stage there are certain behavioral changes and the patient stays excited and then he may suffer from paralysis etc. Summary : The discussion on various infectious diseases of the brain demonstrates that the infectious diseases of the body and the brain occur due to weakened immunity poor and therefore it is necessary to boost the immune system. An appropriate nutritional diet, with, adequate fruit and vegetable consumption, exercise, cleanliness, drinking boiled water etc. In addition to that, if there is a patient suffering from these infections in the office or at home one should be very careful. The doctors sometimes prescribe an antibiotic or some other medicine to the relatives of such a patient in order to avoid the disease; such medicines should be. Due to the dwindling of these cells, which are the most important defence mechanism of the body, the entire immune system of the body gets affected and the immunity power of the body gradually decreases. Disposable syringes and needles should be used for injections and injections should be avoided for common diseases unless absolutely essential. The patient gets fever, muscular pain, swelling of lymph glands, red spots on the skin, swelling in the throat etc. After this phase various symptoms are seen like swelling of the lymph glands, continuous or frequent fever, ulceration in the mouth and throat, splenomegaly, prolonged coughing, weight loss etc.
Other that the brain can adjust its hard- neurotransmitters are also active at wiring through conditioning or ganglia level but not as important sildalis 120 mg otc zantac causes erectile dysfunction. Postganglionic parasympathetic This is mainly achieved by fbres diverge and store the organization of the neurotransmitters in synaptic interconnections through the vesicles 120mg sildalis with visa erectile dysfunction treatment for heart patients. It is now understood the vesicle binds to the synaptic that the white matter is an membrane and deposits the extremely dynamic part of brain acetylcholine in the synapse to development generic sildalis 120mg otc erectile dysfunction biking. Sympathetic stimulation reaches the bladder through Parasympathetic System preganglionic fbres from Parasympathetic stimulation thoracolumbar spinal segments will start in the M-regions of the that synapse in paravertebral pontine micturition center to the and paravertebral sympathetic intermedial grey matter of the pathways order sildalis online pills erectile dysfunction video. These reach the upper vagina, bladder, fbres will then emerge from the proximal urethra and lower ureter 78 through the hypogastric and These increase the effect of the pelvic plexuses. The sympathetic excitatory neurotransmitter, preganglionic neurotransmitter glutamate, on pudendal motor is mainly acethylcholine, acting neurons. The effects on the on nicotinic receptors and post rhabdo sphincter are achieved ganglionic transmitters, primarily by acetylcholine stimulation of norepinephrine. B-adrenergic receptors in the bladder causes relaxation of the Sensory pathways smooth muscle and stimulation The two important sensory of alpha-one receptors in the feedbacks are transported to the bladder base and smooth muscle central nervous system through the of the urethra causing muscle parasympathetic and sympathetic contraction. Norepinephrine also suppress secretion of the presynaptic Proprioceptive endings are present parasympathetic cholinergic in collagen bundles in the bladder neurotransmitter. Urine storage and these are responsible for is thus attained by detrusor stretch and contraction sensations. The sensory Somatic innervation endings contain acetylcholine and Skeletal muscle is present in the substance P. Important An area in the frontal cortex is neurotransmitters include also activated at times of flling. A study of both normal patients 79 and those with overactivity of the that neurological conditions bladder showed different areas are considered, especially if the of predominant activity. Therefore, the physician impulses but also abnormal should evaluate detrusor and impulses or abnormal mapping are sphincteric function as separate responsible for overactivity of the entities. It is easy to understand either normal, hyperactive or that diffuse neurologic disorders hypoactive in function. The diagnosis of prevalence of neurologic disease detrusor-sphincter-dyssynergia will of the lower urinary tract. It is not state which system causes the important, however, to recognize outfow obstruction (sympathetic that patients with neurological or somatic). These can, however, disease should be evaluated for be differentiated by proper lower urinary tract function. A distinction should patient with unexplained lower be made between detrusor-smooth urinary tract symptoms should be muscle sphincter dyssynergia evaluated for possible neurologic or detrusor-striated muscle abnormality. The evaluation of the patient Neurologic should include: Conditions • Detrusor function • Urethral function Supra-pontine lesions • Co-ordination between the two Supra pontine lesions e. Treatment decisions These conditions will lead to less must take into account the inhibition of bladder control. This might not directly be associated with pathology but Voiding dysfunction occurs in occur as part of the normal aging 35-75% of patients. High lesions will mostly consists of frequency, urgency, cause over activity of the bladder nocturia and urge incontinence. Dopamine defciency Multiple Sclerosis is a progressive in the substantia nigra accounts disease affecting young and for the classical motor features middle aged people with of the disease. This condition neural demyelination with axon will only cause lower urinary tract sparing and it is possibly immune dysfunction after many years and mediated. Detrusor and later not be able to self- overactivity with striated sphincter 82 dyssynergia is the most common sphincter control. Up to 15% of These patients will normally end patients might present with the up having treatment in a center urinary symptoms before the for neurologic rehabilitation. In this by central disc compression at the condition the lower urinary level of L5 or S1 where the cauda tract function will be affected equina is central in the spinal fairly soon after the start of the space before it exits through the disease. Cauda Equina syndrome rehabilitation for the urinary is characterized by perineal tract dysfunction is often not sensory loss, loss of both anal indicated and not very satisfactory. They unknown and it is a progressive have acontractile detrusor muscle neurodegenerative condition with and no bladder sensation. Spinal cord damage Complete spinal cord lesions below Spinal cord damage, as in spinal T6 will normally give detrusor over cord injuries, spina bifda patients activity with smooth sphincter and compression of the spinal cord synergia and striated sphincter due to disc compression, tumors dyssynergia. In obstructed labor, minor damage can happen Treatment of spinal cord injuries to the innervation of the lower should aim to create a low- urinary tract. This will normally pressure system and emptying with lead to atonic or hypoactive clean intermittent catheterization. Fortunately, A complication of the above T6 damage to the pelvic plexus is lesions is Autonomic Hyperrefexia. The condition sympathetic) causing headache, will stabilize and function will hypertension and fushing of the return spontaneously to the pelvic body above the lesion. Correction of the under of stimuli in susceptible patients lying neurologic damage is almost is important and sublingual never possible. The whole spectrum developing condition affecting of dysfunctions can be present in motor, sensory and sphincter these patients but seems to be in function. It will mostly stabilize in the more advanced stages of the 2-4 weeks and recovery is usually disease. Peripheral Nerve Damage Fowler Syndrome Peripheral nerve damage is This syndrome presenting in young normally associated with diseases women below 30 presenting like diabetes, herpes virus with acute retention and often infection, Guillain-Barre Syndrome 84 have polycystic ovarian disease. Special investigations Clinical Evaluation Ultrasound of the bladder, urine dipstick and serum creatinine is The evaluation of the neurologic indicated. If any abnormality is picked up with these screening patient includes the normal tests, the necessary workup must physical, biochemical and dynamic be done. The only difference Urodynamic evaluation is that special attention must be Standard Urodynamic testing gives information on bladder and taken to include the state of the urethral function. Urodynamic studies should be performed in a specialized unit examination will sometimes detect where good studies will be done a full bladder. There is detrusor pressures reaching more not a good correlation between than 40 cm of water, especially in anal sphincter activity and the presence of detrusor sphincter urethral function. The still experimental and there is physician must make sure that no clear clinical proof that it will proper knowledge of bladder add to the information on the function as well as urethral and specifc patient. Urodynamic Electro sensitivity of the low evaluation must always try to urinary tract mimic the real life symptoms Sympathetic skin response during the study. Betanecol super sensitivity • Protect renal function, prevent test might also give more infection information on the difference • Restore continence between neurologic or miogenic • Restore emptying a contractile bladders. The • Controlled collection of urine current recommendation is that if restoration of function not it has to be used with care and possible 86 Planning of treatment is important Kidney Function as the underlying disease and It is very important for the the effect on the lower urinary treating physician to remember tract symptoms is almost never the effect of the lower urinary stable and neither is the physical tract symptoms on kidney function condition of the patient. If augmentation or diversion procedures are Underlying condition should be considered, kidney function and stable. Conservative treatment Conservative treatment entails Mobility of the patient triggered refex voiding, bladder The next component of decision expression through crede or making is the mobility of the valsalva maneuver, timed voiding patient. In the intermittent catheterization and spinal lesions, diffuse neurologic catheter care might be impossible conditions and lower lesions it for certain patients. In other cases must only be considered if the the patient might have access bladder is a low-pressure system. Conservative treatment must always form part of the total 87 treatment of the patient, even in cases where more invasive Indwelling catheters are inserted treatment is indicated. It is either suprapubically or trans- diffcult in the neurologic patient urethrally for patients where to completely restore normal there is either a high-pressure function, therefore measures like system or the possibility of self- timed voiding, fuid restriction and catheterization is not available, effort to empty completely need or in cases where patients lose to be emphasized constantly. Crystallization Catheters are used to drain and blocking are the biggest the bladder in patients where problems retention or incomplete voiding is present. They can also be used in Recommendations On The Use incontinent patients, especially if Of Catheters cognitive function is impaired. Self clean intermittent Intermittent catheterization can catheterization is superior to any be used if the storage pressures of the other techniques as long as are low, the bladder has a good the bladder is not a high-pressure capacity and there is good hand system. Clean self-intermittent catheterization is still the best Indwelling catheters are safe way to empty the bladder. Complications of supra-pubic 88 catheters are similar to those of Detrusor muscle relaxing drugs: urethral indwelling catheters. The mainstay of treatment in this Pharmacotherapy group are the anticholinenrgic Pharmacotherapy is mainly used drugs. This gives better treatments, the detrusor function, long-term effects and less side as well as the urethral function affects. The side effect profle of have to be seen as separate the different medications is well entities and a decision on which known as in central nervous system pharmacotherapeutic agent effects, cardio vascular effects, will work best in each specifc dry mouth and constipation. Only broad There are specifc advantages guidelines will be given on which and disadvantages of each of treatment modalities will work the long acting anticholinergic better for a specifc condition. It is important to decide which ones will work Drugs Available For Treatment best in a specifc case and it is Of Neurologic Lower Urinary important to make sure the Tract Overactivity: patient complies with the intake of the medication and that the long 89 term effect thereof is measured. Botulinum toxin A is the most With proper care and information potent biologic toxin known the side effect profle is limited. It binds the snap 33 Oxybutynin is also available as docking protein in the nerve an intravesical installation as terminal. Inhibiting acetylcholine well as a transdermal absorption release from the nerve terminal application. This can give clinical drugs is superior in all cases of improvement for six to nine detrusor over activity. Capcacin and Numerous studies have been Resinoferatoxin blocks sensory done which shows effcacy of nerves for afferent sensation to the Botulinum toxin, starting the brain. If the The study showed that effect lasts for six months the frst Resinoferatoxin is a much more time, the follow up injection will potent sensory antagonist than normally also last about that long.
In individuals older than 60 years purchase sildalis 120 mg fast delivery erectile dysfunction pills that work, the plasma clearance of amantadine is reduced and the plasma half-life and plasma concentrations are increased cheap sildalis 120 mg line impotence meds. The clearance is also reduced in patients with renal insufficiency: the elimination half-life increases two to three fold or greater when creatinine clearance is less than 40 ml/min and averages eight days in patients on chronic haemodialysis purchase sildalis in united states online erectile dysfunction doctors mcallen texas. As the excretion rate of amantadine increases rapidly when the urine is acidic cheap 120 mg sildalis otc impotence or ed, the administration of urine acidifying drugs may increase the elimination of the drug from the body. Toxicity Gastrointestinal symptoms – mainly nausea but also vomiting, diarrhoea, constipa- tion, and loss of appetite – are the major side effects. As the occurrence of adverse effects is dose-related, adverse events are particularly common in the eld- erly and those with impaired renal function. Side effects begin within two days of the start of the drug, and usually disappear rapidly after cessation of treatment. In a four-week prophylaxis trial, these symptoms occurred in up to 33 % of young individuals (Bryson 1980). In a direct comparison of the prophylactic use of amantadine and rimantadine, more patients receiving amantadine (13 % vs. Less frequently (1-5 %) reported adverse reactions are: depression, anxiety and ir- ritability, hallucinations, confusion, anorexia, dry mouth, constipation, ataxia, li- vedo reticularis, peripheral oedema, orthostatic hypotension, headache, somnolence, dream abnormality, agitation, dry nose, diarrhoea and fatigue (Symmetrel 2003). Drug overdose has therefore resulted in cardiac, respiratory, renal or central nerv- 190 Drug Profiles ous system toxicity. Efficacy In a Cochrane review of 15 placebo-controlled trials on the prophylactic effect of amantadine, amantadine prevented 61 % of influenza cases and 25 % of cases of influenza-like illness but had no effect on asymptomatic cases (Jefferson 2006). Resistance Point mutations in the M gene lead to amino acid changes in the transmembrane region of the M2 protein and may confer high-level resistance to amantadine. The use of amantadine for treatment has been associated with the rapid emergence of resistant viruses capable of transmission, compromising its potential as a prophylaxis as well its efficacy as a treatment (Fleming 2003). In an avian model, they were also genetically stable, showing no reversion to the wild-type after several passages in birds (Bean 1989). These results suggest that resistant mutants may have the po- tential to threaten the effective use of amantadine for the control of epidemic influ- enza. Drug Interactions Amantadine adds to the sedating effects of alcohol and other sedating drugs such as benzodiazepines, tricyclic antidepressants, dicyclomine, certain antihistamines, opi- ate agonists and certain antihypertensive medications. Co-administration of quinine or quinidine with amantadine has been shown to re- duce the renal clearance of amantadine by about 30 % (Gaudry 1993). Recommendations for Use Amantadine does not completely prevent the host immune response to influenza A infection (Sears 1987) – individuals who take the drug may still develop immune responses to the natural disease or vaccination and may be protected when exposed at a later date to antigenically related viruses. Treatment should be started as soon as possible, preferably within 24 to 48 hours after the onset of symptoms, and should be continued for 24 to 48 hours after the disappearance of clinical signs. Amantadine is also indicated for prophylaxis against the signs and symptoms of influenza A virus infection when early vaccination is not feasible or when the vac- cine is contraindicated or not available. Prophylactic dosing should be started in anticipation of an influenza A outbreak and before or after contact with individuals with influenza A virus respiratory tract illness. When prophylaxis is started with inactivated influenza A virus vaccine, it should be administered for 2 to 4 weeks after the vaccine has been given (i. When inactivated influenza A virus vaccine is un- available or contraindicated, amantadine should be administered for the duration of known influenza A infection in the community because of repeated and unknown exposure. The daily dosage of amantadine for adults is 200 mg; two 100 mg tablets (or four teaspoonfuls of syrup) as a once daily dose. If central nervous system effects develop on a once daily dosage, a split dosage schedule may reduce such complaints. Low-dose amantadine (100 mg/day) can reduce toxicity and may maintain the prophylactic efficacy seen with 200 mg/day (Sears 1987). In an experimental challenge study on 78 subjects, using doses of 50 mg, 100 mg or 200 mg/day, there was no significant difference between the groups in influenza illness or viral shedding (Reuman 1989). In elderly institutionalised patients, individualised dosing of amantadine, based upon a patient’s creatinine clearance, seems to be effective while reducing adverse reactions (Kolbe 2003). Amantadine may cause mydriasis and should therefore not be given to patients with untreated closed-angle glaucoma. Care should be exer- cised when administering amantadine to patients with a history of recurrent ec- zematoid rash, or to patients with psychosis or severe psychoneurosis not controlled by chemotherapeutic agents (Symmetrel 2003). For prophylaxis, amanta- dine should be started as soon as possible after exposure and continued for at least 10 days. Special Dosage: persons with reduced kidney function and elderly persons may need lower doses (or less frequent doses). Reduced clearance in individuals > 60 years and in patients with renal insufficiency: half-life is increased when creatinine clearance is less than 40 ml/min. Comments/Warnings: no well-controlled studies have been done in pregnant women to evaluate the safety of amantadine. Although no informa- tion is available on the effects in infants, the manufacturer recommends that aman- tadine be used cautiously in nursing mothers. Patients receiving amantadine who note central nervous system effects or blurring of vision should be cautioned against driving or working in situations where alert- ness and adequate motor co-ordination are important. Prolonged excretion of amantadine-resistant influ- enza a virus quasi species after cessation of antiviral therapy in an immunocompromised patient. Incidence of adamantane resistance among influenza A (H3N2) viruses isolated worldwide from 1994 to 2005: a cause for concern. A prospective double-blind study of side effects associated with the administration of amantadine for influenza A virus prophy- laxis. Gender and age as factors in the inhibition of renal clearance of amantadine by quinine and quinidine. An amantadine hydrochloride dosing program adjusted for renal function during an influenza outbreak in elderly institutional- ized patients. Structural characteristics of the M2 protein of influenza A viruses: evidence that it forms a tetrameric channel. The neuraminidase enzyme is responsible for cleaving sialic acid residues on newly formed virions and plays an essential role in the re- lease and spread of progeny virions. When exposed to oseltamivir, the influenza virions aggregate on the surface of the host cell, thereby limiting the extent of in- fection within the mucosal secretions (McNicholl 2001) and reducing viral infec- tivity. Oseltamivir is indicated in the prophylaxis of influenza and for the treatment of uncomplicated acute illness due to influenza in patients 1 year and older who have been symptomatic for no more than 2 days. H5N1 strains are generally sensitive against oseltamivir, but there are no data on its clinical efficacy. Clinical studies have shown that neuraminidase inhibitors can decrease the duration of influenza-related symptoms if initiated within 48 hours of onset. Clinical efficacy is about 60-70 % and, for treatment started within 48 hours, symptoms such as my- algias, fever, and headache were reduced by approximately 0. Treatment with oseltamivir does not seem to adversely affect the primary in vivo cellular immune responses to influenza virus infection (Burger 2000). Oseltamivir is generally well-tolerated with the only clinically important side effect being mild gastrointestinal upset (Doucette 2001). Recently, the drug has been linked to a number of cases of psychological disorders and two teenage suicides in Japan. However, there is currently no evidence of a causal relationship between oseltamivir intake and suicide. Oseltamivir 195 Structure Oseltamivir is an ethyl ester prodrug which requires ester hydrolysis to be con- verted to the active form, oseltamivir carboxylate [3R,4R,5S]-4-acetamido-5- amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylate phosphate. The discovery of oseltamivir was possible through rational drug design utilising available x-ray crystal structures of sialic acid analogues bound to the active site of the influenza virus neuraminidase (Lew 2000). Oseltamivir was developed through modifications to the sialic acid analogue framework (including the addition of a lipophilic side chain) that allow the drug to be used orally (Kim 1998). Pharmacokinetics Following oral administration, oseltamivir is readily absorbed from the gastrointes- tinal tract. After conversion to the active metabolite oseltamivir carboxylate in the liver, it distributes throughout the body, including the upper and lower respiratory tract (Doucette 2001). The active metabolite is detectable in plasma within 30 minutes and reaches maximum concentrations after 3 to 4 hours. Once peak plasma concentrations have been attained, the concentration of the active metabolite declines with an apparent half-life of 6 to 10 hours (He 1999). In patients with renal impairment, metabolite clearance decreases linearly with creatinine clearance, and averages 23 h after oral administration in individuals with a creatinine clear- ance < 30 ml/min (Doucette 2001). A dosage reduction to 75 mg once daily is rec- ommended for patients with a creatinine clearance < 30 ml/min (1. The drug and the active metabolite are excreted by glomerular filtration and active tubular secretion without further metabolism (Hill 2001). Neither compound interacts with cytochrome P450 mixed-function oxidases or glucuronosyltransferases (He 1999). Thus, the potential is low for drug-drug in- teractions, which appear to be limited to those arising from competitive inhibition of excretion by the renal tubular epithelial cell anionic transporter. Probenecid blocks the renal secretion of oseltamivir, more than doubling systemic exposure oseltamivir carboxylate (Hill 2002). This competition is unlikely to be clinically 196 Drug Profiles relevant, but there has been speculation about using probenecid to “stretch” osel- tamivir stocks in situations of pandemic shortage (Butler 2005). The metabolism of oseltamivir is not compromised in hepatically impaired patients and no dose adjustment is required (Snell 2005). In elderly individuals, exposure to the active metabolite at steady state is approxi- mately 25 % higher compared with young individuals; however, no dosage adjust- ment is necessary (He 1999). Young children 1 to 12 years of age clear the active metabolite oseltamivir car- boxylate at a faster rate than older children and adults, resulting in lower exposure. Increasing the dose to 2 mg/kg twice daily resulted in drug exposures comparable to the standard 1 mg/kg twice daily dose used in adults (Oo 2001).