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Query: UMLS:C0020538 (hypertension)
 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

To delineate the worth of chronic HF in end stage renal failure, since 1976 we have treated 9 patients with dialysis-resistant hypertension, 6 patients with dialysis intolerance, 7 patients with hypertriglyceridaemia and 7 patients with polyneuropathy. We found an improvement of polyneuropathy and volume-sodium dependent hypertension and symptoms of dialysis discomfort markedly diminished. No amelioration was detected in anaemia, hypertriglyceridaemia and volume-independent hypertension. Hyperphosphataemia was poorly controlled despite increased amounts of aluminium hydroxide. PTH values increased and renal osteopathy seemed to deteriorate.
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PMID:Haemofiltration - critical evaluation of clinical benefits. 54 84

The experiences which have been compiled in more than 2400 hemofiltrations confirm that this method represents an alternative way of treating uremic patients. The main advantages of chronic hemofiltration are the comfort of the patient and the ease in handling excess overhydration without extending treatment time, which is less than 3 X 3 hours/week if adequate hemofilters are used. With regard to the improvement of such typical uremic complications as severe hypertension, hypertriglyceridemia or neuropathy, hemofiltration does not seem to be superior to hemodialysis. However, since most hemofiltration patients do not require phosphate binders and, additionally, remarkable amounts of parathyroid hormone are removed during one hemofiltration, it appears possible that hemofiltration might be an important therapeutic alternative for those renal patients who suffer from severe hyperphosphatemia and secondary hyperparathyroidism.
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PMID:Chronic hemofiltration. A critical evaluation of a new method for the treatment of blood. 74 12

Preliminary results of this retrospective-prospective analysis of renal hypertension in 110 children indicate that hypertension may be secondary to a wide variety of acute progresive, and chronic renal diseases which may be either congenital or acquired. Affected children may be detected at any time from infancy through adolescence. Symptoms usually associated with acute glomerulonephritis (i.e., headache, swelling, nausea, vomiting, anorexia, fatigue, dizziness, and fever) occur in both acute and chronic renal diseases associated with hypertension. Headache and swelling are the most common symptoms in this series. Peripheral edema, rales, and increased heart size were found in between 10 and 25% of these children. Differential diagnosis may be approached by a consideration of causes of acute and chronic hypertension. The child with chronic renal disease usually presents with a long history of fatigability, poor growth, and pallor, and laboratory tests reveal elevation of the creatinine and BUN along with anemia, hypocalcemia, and hyperphosphatemia. In contrast, the child with acute renal disease and hypertension presents with a history of prior good health followed by the abrupt onset of signs and symptoms of renal disease; laboratory tests usually reveal modest elevations of creatinine and BUN, anemia is unusual, an abnormal urinalysis is common, and serum calcium and phosphorous levels are usually normal. Renovascular and asymmetric renal parenchymal disease represent uncommon but important conditions because surgery may be curative. Treatment may be surgical, medical, or combined. Surgical conditions include renal trauma, hydronephrosis, asymmetric renal disease, and renal arterial disease. Adequate blood pressure control without medication can be expected following surgery in instances of unilateral involvement with a normal contralateral kidney. Meticulous assessment of the contralateral kidney is needed to determine that it is normal. If surgery is unsuccessful or is not indicated, pharmacologic therapy is initiated with a stepwise regimen starting with the mildest agent (e.g., thiazides) and then adding additional antihypertensive drugs when adequate blood pressure control has not yet been achieved. The goal of therapy is the lowest, safest, tolerated blood pressure levels. Long-term, carefully designed studies of antihypertensive agents for children with renal hypertension are not available. The need for collection and critical analysis of data concerning the clinical course of children with renal hypertension is evident from a review of the literature and from the preliminary data presented in this series. The presentation of such information and a critique of outcome variables will provide a basis for program planning for affected children and improvement in patient care where indicated.
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PMID:Renal hypertension in children. 99 44

Treatment with rHuEpo can eliminate many symptoms that had been attributed to uremia. Repetitive punctures in children undergoing three times weekly subcutaneous (SC) rHuEpo can result in noncompliance with the therapeutic regimen. The aim of this study was to evaluate the efficacy of once weekly SC injection of rHuEpo in children with end-stage renal disease (ESRD) on CAPD. Six children (5 males, 1 female, mean-age: 6.0 years, range: 0.5 to 15.8 years) with ESRD on CAPD were treated with a regimen of rHuEpo 150 U/Kg/week SC for 12 weeks. All patients received oral iron supplementation. All children had improved appetite and well-being. The adolescents showed an increased ability to engage in regular activities. The hematocrit increased from 20.3 +/- 1.2% to 31.7 +/- 3.8% in 12 weeks. The mean weekly increase in hematocrit was 0.95 +/- 0.34%. There was no significant differences in iron indice prior to and during rHuEPO treatment. Side effects related to rHuEpo included transient pain at the site of injection in all, pruritus at the site of injection in 1 child, hyperphosphatemia in 1 infant, iron relative deficiency in 2 children and an asymptomatic increase in blood pressure in 1 hypertensive child. None of the 5 normotensive patients developed hypertension. We concluded that once weekly 150U/kg SC rHuEpo is effective in correcting anemia in children on CAPD. This regimen results in few side effects, decreases the cost of treatment and produces less distress to the patients by avoiding repetitive injections.
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PMID:Once weekly subcutaneous administration of recombinant erythropoietin in children treated with CAPD. 136 43

To evaluate the clinical efficacy of recombinant human erythropoietin (EPO) and its influencing factors in the treatment of anemia in hemodialysis (HD) patients, 17 chronic stable HD patients (10 males, 7 females; mean age: 46.0 +/- 2.6 years) with severe anemia were enrolled in this study. The study period (ranging from 5 to 11 months) was divided into the initial 12 weeks of correction phase and the subsequent maintenance phase. EPO, 1500 U initially, was administered intravenously twice weekly (BIW group, n = 10) or thrice weekly (TIW group, n = 7) at the end of each HD. Dose was doubled every 4 weeks until up to a maximum dose of 6000 U if increment of hematocrit (Hct) was less than 3%. At the end of correction phase, anemia was markedly improved. Hct and hemoglobin (Hb) increased from 19.3 +/- 0.8 to 28.7 +/- 1.1% and from 6.5 +/- 0.3 to 9.6 +/- 0.4 g/dl, respectively. Fifteen patients (88%) reached to the target Hct of 30% at 13.7 +/- 1.2 weeks. At the end of study, Hct and Hb was maintained at 29.1 +/- 0.7% and 9.6 +/- 0.3 g/dl, respectively. Requirement of EPO dose to reach the target and maintain the stable Hct (greater than or equal to 28%) was 99 +/- 14 and 62 +/- 11 U/kg/week, respectively. Laboratory parameters showed that serum iron, transferrin saturation, sugar and triglyceride decreased significantly and uric acid and aluminum (Al) increased significantly. There was no significant change in predialysis blood pressure, body weight, cardiac ratio, and ECG. Quality of life was markedly improved with the better subjective feelings, physical activity and Karnorfsky index. Common adverse effects included exacerbated hypertension (23%), hyperphosphatemia (18%), hyperkalemia (18%), and flu-like syndrome (12%). All of them could be managed by medical and dialysis treatment. Investigation of influencing factors on response to EPO suggests that 1) TIW group had a better response than BIW group 2) Response was better in patients with more adequate iron status and less severe Al burden. 3) Time to target Hct correlated approximately with basal serum Al levels but did not correlate with basal serum parathyroid hormone levels. In conclusion, low dose of EPO therapy corrects anemia effectively with minimal adverse effects in HD patients. Dosing regimen, iron status, and serum Al will influence the response to EPO.
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PMID:Clinical efficacy of recombinant human erythropoietin in the treatment of anemia in hemodialysis patients: influence of dosing regimen, iron status, and serum aluminum. 186 7

Extensive clinical studies have documented the effectiveness of recombinant human erythropoietin (rHuEPO) in correcting the anemia of adult dialysis patients, but the safety and efficacy of rHuEPO in children with renal anemia cannot yet be confirmed, due to the relative deficiency of reported studies involving pediatric subjects. To date, published experience with rHuEPO therapy in children has totaled 257 patients, although the majority of these reports have appeared only as abstracts. Overall experience has been favorable, with renal anemia and transfusion dependency successfully resolved in almost all pediatric patients reported. However, controlled clinical trials have not been performed, so it is not yet possible to clearly define the risks associated with rHuEPO therapy in children. Hypertension appears to occur or become worse in up to one third of treated children, but it is unclear to what extent rHuEPO therapy is accompanied by an increased risk of seizures, thrombosis of vascular access, hyperkalemia, hyperphosphatemia, or peritonitis (when administered via the intraperitoneal route). Only preliminary and somewhat conjectural recommendations can be offered regarding pediatric rHuEPO dosing, route of administration, special precautions, and adjunctive monitoring and therapy. Fortunately, a multicenter controlled clinical trial is underway that is designed to address these issues. Because the harmful effects of renal anemia are typically more profound for children than they are for adults, the benefits of rHuEPO promise to be even greater among pediatric patients. Whether rHuEPO therapy will substantially improve growth and neurologic and psychosocial development remains to be seen, but the potential is there for rHuEPO to dramatically improve the lives of children who suffer from the effects of the anemia of chronic renal failure. Other non-renal anemias that afflict pediatric patients, such as the anemia of prematurity, also may be amenable to rHuEPO therapy.
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PMID:Pediatric uses of recombinant human erythropoietin: the outlook in 1991. 192 79

Severe rhabdomyolysis following an influenza B infection developed in a previously well 13-year-old girl. There was no history of trauma. Her course was complicated by episodes of severe hyperkalemia, hypocalcemia, hyperphosphatemia, and myoglobinuria. Renal failure, hypertension, and life-threatening arrhythmias developed; she died. Muscle biopsy revealed that this girl had carnitine palmityl transferase deficiency. An asymptomatic sister was demonstrated to have the same disorder. Although carnitine palmityl transferase deficiency is usually associated with mild bouts of rhabdomyolysis that become apparent only in adulthood, severe forms of this disorder may be seen in children. Life-threatening rhabdomyolysis and myoglobinuria may follow any infection associated with decreased intake. If carnitine palmityl transferase deficiency is diagnosed in a proband, other siblings should be evaluated so that proper preventative measures can be undertaken to help prevent the development of symptoms in susceptible individuals who have not been recognized to have the disease.
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PMID:Fatal rhabdomyolysis following influenza infection in a girl with familial carnitine palmityl transferase deficiency. 274 60

In order to determine the incidence and pathogenesis of mitral anular calcification (MAC) in chronic renal failure, we analyzed biochemical, hemodynamic and echocardiographic data in 168 patients on long-term hemodialysis. Mitral anular calcification is more common in patients with chronic renal failure than in other patients of similar age. Its pathogenesis appears to be due to abnormal calcium-phosphorus homeostasis in the setting of secondary hyperparathyroidism. Hypertension did not appear to be an important etiologic factor in our patients. Meticulous control of hyperphosphatemia would appear to be the most important therapeutic measure in preventing this complication.
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PMID:Mitral anular calcification in chronic renal failure. 669 94

Rhabdomyolysis occurred in 25 of 1,000 patients (2.5%) with phencyclidine (PCP) intoxication. 10 of these 25 patients (40%) developed acute renal failure and another 7 had mild impairment in renal function. Marked hyperuricemia was present in all 17 patients, and marked hyperphosphatemia and hypocalcemia were noted in the 10 patients with acute renal failure; 3 of the latter developed hypercalcemia during the diuretic phase of the illness. Fever, tachycardia and hypertension were frequent findings among the 25 patients with rhabdomyolysis and all had leukocytosis. The data show that rhabdomyolysis with and without acute renal failure is not infrequent among abusers of PCP.
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PMID:Rhabdomyolysis with and without acute renal failure in patients with phencyclidine intoxication. 734 47

Modern therapeutic concepts of chronic renal insufficiency are based on observations showing a retardation of progressive renal failure by therapeutic measures. In the context emphasis is now placed on the treatment of arterial hypertension and on the patient's adherence to a protein-restricted diet. In addition to these conservative measures it is important to avoid nephrotoxins, to hydrate the patient sufficiently and to treat advanced hyperlipidemias. Deficiencies of active vitamin D should be treated by oral vitamin D substitution after correction of hyperphosphatemia. In the treatment of the latter, preparations of calcium carbonate are now the preferred mode of treatment. In advanced renal insufficiency it is important to maintain a salt-restricted diet and to treat any attendant hyperkalemia and hyponatremia.
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PMID:[Conservative treatment in chronic kidney insufficiency]. 778 98


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