title: Beta-blockers may cause ultrafiltration failure in peritoneal dialysis patients.
abstract: OBJECTIVE
  To elucidate mechanisms of ultrafiltration failure (UFF) in patients on continuous ambulatory peritoneal dialysis (CAPD).
  
  
  METHODS
  Retrospective analysis of patients with UFF during CAPD compared with cross-sectionally selected controls.
  
  
  METHODS
  University peritoneal dialysis center.
  
  
  METHODS
  Thirteen patients with UFF during CAPD necessitating change to hemodialysis (n = 6) or continuous cycling peritoneal dialysis (n = 1), or causing greatly increased need for high glucose-containing solutes, were compared with 18 CAPD patients without such problems.
  
  
  METHODS
  Fisher's exact test, Student's independent t-test, univariate and multivariate correlation analyses.
  
  
  METHODS
  Data were collected prior to analyses.
  
  
  RESULTS
  Systolic blood pressure and total cholesterol and triglyceride levels were higher in the UFF patients than in the controls (p = 0.006, p = 0.028, p = 0.013). Beta-blockers were used by 12 of the UFF patients, but only 2/ 18 controls (p < 0.0001). There was no intergroup difference in number of women, patient age or weight, incidence of diabetes or previous peritonitis, duration of PD, serum levels of albumin, creatinine, iron, or ferritin, or dosage of erythropoietin. Correlation was found between the daily amount of glucose instilled into the abdomen and serum triglycerides (r = +0.72, p < 0.001), total cholesterol (r = +0.56, p = 0.008), and HbA1C (r =-0.41, p = 0.039). Many patients were high absorbers of dialysis glucose.
  
  
  CONCLUSIONS
  The study indicates that beta-blockers may cause UFF, and that glucose and lipid metabolism differed between these patients and controls without UFF.
authors.affiliation: Division of Nephrology, Department of Internal Medicine, University Hospital, Umeå, Sweden.
authors.forename: B G
authors.initials: BG
authors.lastname: Stegmayr
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000009:adverse effects*; D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010531:Peritoneal Dialysis, Continuous Ambulatory; D012044:Regression Analysis; D012189:Retrospective Studies; D016896:Treatment Outcome; D014462:Ultrafiltration
chemical_list: D000319:Adrenergic beta-Antagonists