Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0035078 (renal failure)
 31,970 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Various factors are involved in the pathogenesis of anemia in dialysis patients. Reduced erythropoiesis is mainly attributed to erythropoietin deficiency. Stimulation of erythropoiesis may be promoted by androgens. Substitution of iron is recommended in case of iron deficiency. As a rule, supplementation of vitamin B12 is not necessary, but administration of folic acid is recommended. Treatment of anemia in renal failure is rendered more effective by increased technical efficiency in hemodialysis permitting a relatively protein-rich diet. Blood transfusions are not necessary during routine treatment of dialysis. Since bilateral nephrectomy will always provoke severe anemia, it should be reserved to special cases of severe hypertension. Until now, no conservative therapy has been developed which would allow optimal treatment of anemia in dialysis patients. Successful renal transplantation still is, and will be, the best therapeutic intervention.
 ...
PMID:[Anemia in terminal kidney failure. Pathogenesis and therapy]. 83 56

Recurrent hyperparathyroidism occurred in 11 of 295 patients from 10 months to 34 years after an initially successful operation. Seven patients with recurrent hyperparathyroidism had either multiple endocrine adenomatosis type I (MEA) or familial hyperparathyroidism (FHP), one patient had parathyroid cancer, and two patients had renal failure at the time of recurrence. Four of these patients ahd their initial operations elsewhere. Recurrence developed in 33% of patients with MEA or FHP but in only 0.4% of 242 patients without MEA or FHP. The presence of MEA or FHP was known before parathyroid exploration in 18 (86%) of the 21 patients. In patients with MEA or FHP, subtotal parathyroidectomy should be performed if there is more than one gland involved. Other patients should be treated by selective removal of an adenoma because recurrence is rare. Subtotal parathyroidectomy should be reserved for patients with diffuse hyperplasia.
 ...
PMID:Recurrent hyperparathyroidism. 101 86

The indications for surgical treatment of renal HPT in patients with chronic endstage renal failure are symptomatic disease or failed medical management. The indications for patients who have had a kidney transplant are symptomatic disease and persistent hypercalcemia. It should be noted, however, that the current approach favored in the literature in asymptomatic, mild post-transplant hyperparathyroidism is conservative. Total parathyroidectomy with autotransplantation is the most popular surgical method reported. I have done subtotal parathyroidectomy and reserved total parathyroidectomy for selected patients. My recurrence rate is comparable to that reported. The actual survival rate in our two groups of patients was 58 percent for the dialysis patients and 79 percent for the transplant patients. The actuarial survival rates at 1, 5, and 10 years in the two groups were 95 and 92 percent; 59 and 67 percent; and 32 and 67 percent. The use of diphosphonates and medical rather than surgical control needs further study, as do the long-term effects of conservative treatment of asymptomatic post-transplant hyperparathyroidism.
 ...
PMID:Renal hyperparathyroidism. 144 Jan 49

Variceal bleeding has a high mortality, as the majority of patients have cirrhosis, with hepatic coma, renal failure, ascites and clotting deficiencies as complicating factors. Bleeding varices must therefore be treated as an emergency. Resuscitation, endoscopic diagnosis and haemostasis are the cornerstones of treatment. Once bleeding varices have been identified, attempts to stop the bleeding must be made at once as this will lessen the chances of hepatic failure developing. Endoscopic sclerotherapy at the time of diagnosis is the best available treatment at present, although profusely bleeding varices can be difficult to see and inject. In these circumstances the passage of a Sengstaken tube should stop the bleeding, allowing later sclerotherapy to be successful. If rebleeding recurs and cannot be controlled, oesophageal transection with a stapling gun may be life-saving, although the varices may later recur and long-term endoscopic follow-up will be necessary. Portacaval shunting and the distal splenorenal shunt involve arduous surgery and are followed by a significant incidence of hepatic encephalopathy; they should be reserved for those few cases when simpler measures have failed, although shunts do lead to permanent decompression of the portal system. The acute variceal bleed may also be dealt with pharmacologically. Vasopressin, used in combination with nitroglycerin to lessen the harmful side-effects, is cheaper and as effective as terlipressin or somatostatin and its synthetic analogue octreotide. Several courses of injection sclerotherapy will be required to eliminate oesophageal varices. Thereafter, long-term follow-up will be necessary to deal with any recurrence. The place of non-selective beta-blockers is still contentious, but they do reduce portal pressure and may lessen the chance of rebleeding. There is also a growing role for hepatic transplantation, which not only eliminates the varices but also restores liver function to normal and greatly reduces the risk of subsequent hepatoma development.
 ...
PMID:The management of variceal bleeding. 168 66

Metabolic alkalosis (MA) only occurs after bicarbonate administration if given quickly and massively, or in the presence of renal failure. Most cases of MA are caused by a loss of hydrogen ions. This paper reviews the common causes (gastric aspiration, chronic diuretic therapy) and updates the list of drugs which may lead to this complication. Rare causes (such as hyper mineralo-corticoid secretion) should be suspected in patients with MA unresponsive to usual doses of potassium chloride. Hydrochloric acid infusions are reserved for very special cases.
 ...
PMID:[Metabolic alkalosis]. 223 4

Snake envenomation is a major cause of death and disability in the developing countries, particularly India and Southeast Asia. Species variation in venom components, yield, and lethality leads to quite different clinical presentations and mortality. Venomous snakes are divided into 5 families. Bites of the Viperidae, Crotalidae and Colubridae usually cause primarily local effects and bleeding; the Elapidae most commonly cause neurological symptoms, particularly paralysis; while the Hydrophidae cause paralysis and myolysis. Venoms are complex mixtures of enzymes, peptides and metalloproteins. 26 enzymes have been identified, and 10 of those are found in most venoms. Components have been identified that act as procoagulants, anticoagulants, hyaluronidases, RNases, DNases, postsynaptic toxins and presynaptic toxins. Other peptides induce capillary leak syndrome, haemolysis and shock. The clinical results of envenomation vary widely, and there may be no envenomation with a bite. Syndromes reported include oedema, haemolysis, shock, bleeding, pituitary failure, renal failure, myonecrosis, and combinations of the above. First aid measures that have been proposed include tourniquets, constricting bands, tight crepe bandages, incision and suction, cryotherapy, and high voltage electric shock. None of these has been shown to be effective except usage of a crepe bandage for Australian elapid bite. Tourniquets or cryotherapy, if used for extended periods may lead to gangrene. The most important first aid measure is rapid transport to comprehensive medical care. There is some controversy about medical treatment in the United States, but less in other countries. Supportive measures routinely required include intravenous fluids, tetanus prophylaxis and antibiotics. Anticholinergics may be useful in elapid bite. Intubation and ventilation may be necessary. Unproven surgical approaches include excision of envenomated tissues and fasciotomy. The former is disfiguring, the latter should be reserved for those patients with demonstrated increased intracompartmental pressure. More than 100 antivenins are produced by about 36 laboratories worldwide. The products are effective, but carry a high risk of serum sickness and a lesser risk of anaphylaxis. A more effective and less reactive product is under development.
 ...
PMID:Snake envenomation. Incidence, clinical presentation and management. 246 87

Chronic pancreatitis of biliary origin, frequently located in the cephalic portion of the organ, etiopathogenically dependent on biliary lithiasis, the anatomoclinical evolution of which is complicated by their presence, have a better prognosis, and are usually reversible following therapy of the biliary affections. Persistent chronic pancreatitis proper, usually of the recurrent type, associated with calcification and the development of pancreatic stones, and with pseudocysts, although rare in our country, raise diagnostic difficulties from the standpoint of surgery, and have a reserved prognosis. The authors have evaluated a total of 321 cases hospitalized between 1960 and 1987 with chronic pancreatitis of biliary origin (252 cases--78.5%), and chronic pancreatitis proper, not associated to biliary affections (69 cases--21.5%). Male patients totalled 33.6% of all cases. The authors stress the high frequency of chronic pancreatitis associated to biliary lithiasis (181 cases), in contrast with pancreatitis associated to nonlithiasic cholecystopathies (38 cases), or to postoperative cholecystic disturbances (33 cases). Chronic pancreatitis non-associated to biliary affections totalled 69 cases, of which 24 were of the persistent type, 13 were of the recurrent type, one had calcifications, two had pancreatic stones, four followed acute pancreatitis, six were complicated by pancreatic abscesses, and 9 were complicated by pseudocysts. The duration of biliary and pancreatic disturbances was between 3 and 5 years in 43.9% of the cases, and between 6 and 10 years in 21.3%. Chronic pancreatitis achieves a complex clinical syndrome, the dominant feature being the painful biliopancreatic syndrome associated to obstructive jaundice (42.4%), angiocholitis (47.6%), weight loss (46%), hepatic and renal failure (10.9%), diabetes (8.4%), and a tumoral mass (15.7%). Indirect surgical interventions aimed at suppressing the biliary factor were carried out in 291 patients, with very good results in 56% of the cases, good results in 32%, mediocre in 7%. In 2.4% of the cases surgery failed to improve the condition of the patients. Direct interventions on the pancreas, which consisted either in pancreatic decompression or in exeresis of the gland have been performed in 30 patients. Drainage of pancreatic abscesses was done in 6 patients (2 deaths), cystic-digestive anastomoses were performed in 8 patients, Wirsung-jejunostomy in 3 patients (1 death), cystostomy in one patient, distal pancreatectomy in one patient (deceased), viscerolysis and novocaine infiltration in 11 patients. In the 321 cases of chronic pancreatitis operated by direct and indirect procedures very good
 ...
PMID:[Chronic pancreatitis: anatomico-clinical and surgical therapy characteristics. Our experience with 321 cases]. 252 82

A 51-year-old male of Marfan syndrome with annuloarotic ectasia underwent the Bentall operation. One and a half months later, he suddenly fell into the left ventricular failure associated with lung edema. Echocardiogram revealed total occlusion of the graft and aortic valve detachment was suspected. An emergency operation was performed. The aortic valve was completely detached due to infectious endocarditis. As anastomosed portions of the proximal coronary arteries and distal aorta were intact, these rims of the old graft were reserved. A new composite graft was anastomosed distally to the above reserved graft rims and sutured proximally to the trimmed aortic valvular ring. The patient survived the re-operation despite many post-operative complications such as mediastinitis, colon bleeding, renal failure and severe hepatic dysfunction.
 ...
PMID:[A case report of emergency Bentall re-operation]. 261 24

Although much time, effort, and money have been expended in the area of fetal surgery and even though considerable unfortunate media publicity has resulted, the actual clinical problem is not one of great magnitude. Currently all those interested in this area agree that consideration of any intrauterine manipulation or surgery should be reserved for a fetus who has bilateral involvement that is progressive, destructive, and associated with oligohydramnios. Except for rare instances, this eliminates all fetuses except those with some type of urethral obstruction. Significant urethral obstruction accounts for approximately 10 per cent of all patients who have a prenatal diagnosis of a urologic abnormality. Of this 10 per cent, some will not be progressive, some will not be destructive, some will not involve both kidneys, and some will not develop oligohydramnios. Some of these patients will be diagnosed early enough in pregnancy to allow termination of the pregnancy if the involvement is significant and if termination is acceptable to the family. Some will be diagnosed late enough in pregnancy so that if the lungs are mature or can be stimulated to mature, early delivery and postnatal management can be elected. Some will have other associated lethal anomalies that can be diagnosed and would preclude any consideration of intrauterine manipulation or therapy. Some will have irreversible renal failure. Occasionally, the mother may refuse any proposed intrauterine therapy. Thus we are probably considering, on a theoretic basis, well under 1 per cent of all fetuses who have a prenatal diagnosis of urologic abnormalities. There may be some unusual situations that justify intrauterine manipulation. One that we encountered involved a fetus with an abdominal mass so large that a cesarean section was deemed necessary (Figs. 12 and 13). Aspiration of the mass just before delivery was performed to allow a vaginal delivery. Another case involved a pregnant woman who developed severe toxemia. The fetus was found to have a solitary renal cyst. Repeated aspirations of the cyst resulted in resolution of the toxemia, which promptly recurred when fluid reaccumulated in the fetal renal cyst. Insertion of a double-universe catheter from the cyst into the amniotic cavity allowed completion of the pregnancy, with the delivery of an otherwise normal fetus without recurrence of the toxemia. A recent report on fetal surgery from the International Fetal Surgery Registry, coauthored by the strongest advocate of intrauterine intervention, reached these conclusions.(ABSTRACT TRUNCATED AT 400 WORDS)
 ...
PMID:Antenatal diagnosis and management of urinary abnormalities. 330 53

CT and ultrasound have become invaluable diagnostic tools in the radiologic evaluation of the traumatized and acutely ill patient. CT is the imaging modality of choice in blunt abdominal trauma, retroperitoneal injury and some types of pelvic injury. Ultrasound plays an important role in the evaluation of patients presenting with right upper quadrant pain, renal failure, scrotal pain and enlargement, or pain and bleeding during pregnancy. CT should be reserved for patients with complicated pancreatitis or some forms of renal infection. Thus, CT and ultrasound are important imaging modalities in the work-up of many patients treated by the emergency room physician.
 ...
PMID:Computed tomography and ultrasound of the traumatized and acutely ill patient. 389 83


1 2 3 4 5 6 7 8 Next >>