ISSN:1660-8151    

DOI:10.1159/000187054

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

Itching in nondialyzed uremic subjects and patients on dialysis remains incompletely explained and poorly treated. We evaluated our chronic hemo- and peritoneal dialysis patients for this symptom and synthetically reviewed previous reports on itching and renal failure. We found no biochemical correlates of itching but did find that itching was less with better dialysis as defined by urea kinetic modelling. We conclude that improved dialysis techniques will continue to reduce the prevalence of itching in end-stage renal disease patients.

ISSN:1660-8151    

DOI:10.1159/000187055

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

Forty-four cadaver renal allograft recipients who had flowcytometric cross-match (FCXM) testing and sequential quadruple immunosuppression were studied with respect to the number of rejection episodes and the functional viability of the graft in the first year after transplantation. Fourteen of these patients had antibodies to donor T cells by FCXM. All were negative by conventional crossmatch. Multiple-regression analysis with HLA mismatches, panel-reactive antibody (PRA) percentage, flowcytometric channel shifts and transplant number as independent variables revealed that transplant number and high PRA ( > 50%) impacted (p < 0.05) on serum creatinine at 1 month and 1 year, and graft survival at 1 year. In first transplants, a positive FCXM had no impact on 1-year graft survival rates; however, in retransplants, a positive FCXM and/or high PRA had a significant negative impact on 1-year graft survival. This study indicates that the FCXM should be utilized for retransplant patients, and in patients with a high PRA, in an attempt to improve graft survival for these high-risk recipients.

ISSN:1660-8151    

DOI:10.1159/000187056

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

Between May 29 and September 13,1991,4 patients developed acute intravascular hemolysis during hemodialysis with Monitral-S delivery systems and Hospal BSM A77 blood lines. All had malaise, nausea and headache; 3 had severe abdominal pain and 2 became very ill. Plasma hemoglobins were 3-21 g/l and LDH 542-3,300 IU in the 4 patients. Hepatoglobin became unmeasurable in 3 and was 0.09 g/l in the 4th patient. Soon afterwards, we found the arterial blood line tightly kinked at the dialyzer inlet port in the 4th patient and released it; he developed abdominal pain, hemolysis was present. We then found these lines had an extra long pump segment, and the rest was short and fitted poorly. When put in the first tubing organizer, severe kinking could occur just after the pump segment, causing back pressure but no alarm. We produced early visible hemolysis in a 1-liter circulating closed loop blood system with the blood line kinked either at the dialyzer inlet or just below the first arterial line tubing organizer with 40 g/l free plasma hemoglobin by 30 min. We excluded reported causes of intravascular hemolysis during hemodialysis. No hemolysis occurred before or during the 9 months after we discarded BSM A77 lines. The evidence indicates that kinked blood lines caused the hemolysis.

ISSN:1660-8151    

DOI:10.1159/000187057

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

A single center experience of 514 ciclosporin-treated renal allografts which survived longer than 1 year was reviewed in order to analyze the causes of renal allograft loss beyond the 1st year post-transplantation and the contribution of selected parameters to long-term survival. 83 grafts were lost between 1 and 5 years with the most common causes of graft loss being chronic rejection (54%), death (14%), noncompliance (13%) and sepsis (11%). Actuarial 5-year graft survival rates, decaying from 100% at 1 year, of living related and cadaveric grafts were 88.6 and 79.5%, respectively. Parameters with a substantial influence on long-term survival included the quality of early graft function and incidence of acute rejection in the 1st year post-transplantation. A marker for long-term survival ( > 5 years) was a significantly lower serum creatinine (177 μmol/l; ≤ 2 mg/dl) at 1 year. We conclude that chronic rejection is responsible for the majority of late graft losses in the ciclosporin era as in the earlier azathioprine peri

ISSN:1660-8151    

DOI:10.1159/000187058

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

Neurotoxicity associated with intravenous acyclovir therapy is well documented. We report 4 cases of acyclovir-induced neurotoxicity in dialysis patients receiving oral therapy at a reduced dose.

ISSN:1660-8151    

DOI:10.1159/000187059

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

A major adverse effect of recombinant human erythropoietin (r-HuEPO) in hemodialyzed patients are thrombotic events. Several reports on platelet function during r-HuEPO treatment have been published but less is known about fibrinolysis. In the present study, the fibrinolytic capacity was studied in 20 patients on maintenance hemodialysis and treated with r-HuEPO. The patients were randomized into two groups and investigated in a crossover design. r-HuEPO was administred intravenously and subcutaneously in each group and was given for 3 months, respectively. Plasma tissue plasminogen activator (t-PA) and released t-PA remained unaffected by r-HuEPO in both groups throughout the study. Tissue plasminogen activator inhibitor (PAI) increased in a cyclic way reaching peak values 4-6 weeks after the start of investigation and again 4-6 weeks after changing therapy. The increase in PAI was significant in the two groups (0.025 > p > 0.01). Tissue plasminogen antigen was low in the uremic patients. The influence of r-HuEPO on this parameter was not investigated. Compensatory changes in plasma levels of factor XII procoagulant activity, activated protein C and of α2-antiplasmin were not observed. Thrombotic events occurred in 4 patients at peak values of PAI. Six patients required an increase in heparin dose simultaneously with the increase in PAI. Thus, r-HuEPO seemed to affect the fibrinolytic capacity of uremic patients

ISSN:1660-8151    

DOI:10.1159/000187060

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

A 66-year-old white man presented with severe chronic renal failure. He had no past or present symptomatic glucose intolerance nor a family history of diabetes mellitus. Several fasting plasma glucose determinations, hemoglobin Ale and an oral glucose tolerance test were normal. Funduscopic ophthalmoscopy and retinal fluorescein angiography did not demonstrate diabetic retinopathy. The kidney biopsy showed nodular diabetic nephropathy, with increased mesangial matrix, thickened glomerular basement membrane, and afferent and efferent glomerular arteriolar hyalinization. The diagnosis of nodular diabetic nephropathy was made in this patient in the absence of past or present or familial evidence of diabetes mellitus.

ISSN:1660-8151    

DOI:10.1159/000187061

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

Nephrogenic ascites associated with maintenance hemodialysis is a complex problem with poorly understood pathophysiology. We report 4 pediatric patients investigated between 1986 and 1990. All the patients treated with maintenance hemodialysis required multiple blood transfusions. Each patient was carefully evaluated for factors potentially relevant to ascites, and serum ferritin levels were found to be extremely high. Peritoneoscopy which was utilized in all patients led to a specific diagnosis of hemosiderosis in the peritoneum and liver biopsies. In 1 patient, lymph node biopsy also showed iron deposition. We believe that iron deposition played a role in changing the permeability of the peritoneum and is presumed to be a pathogenetic factor in nephrogenic ascites.

ISSN:1660-8151    

DOI:10.1159/000187062

出版商:S. Karger AG    

年代:1992

数据来源: Karger

摘要:

Sixty-eight children with diarrhea-associated hemolytic uremic syndrome (D + HUS) were retrospectively examined to assess clinical variables associated with the combination of leukocytosis and hypocomplementemia. There was a statistically significant association between the white blood cell count (WBC) and the level of the third component of the complement system (C3). Children with both a low C3 and a high WBC were significantly younger and required hospitalization for a significantly longer period of time. Although there were also trends to increases in the presence of anuria and central nervous system complications and in the duration of anuria, elevated WBC, thrombocytopenia, dialysis, and hemorrhagic colitis in children with both an elevated WBC and a low C3, these changes did not achieve statistical significance. The presence of a low C3 and an elevated WBC may indicate a subset of children with D + HUS with a more severe episode.

ISSN:1660-8151    

DOI:10.1159/000187063

出版商:S. Karger AG    

年代:1992

数据来源: Karger