title: Comparison of straight and curled Tenckhoff peritoneal dialysis catheters implanted by percutaneous technique: a prospective randomized study.
abstract: OBJECTIVE
  To examine the impact of peritoneal dialysis catheter configuration, curled or straight catheter, on catheter survival and mechanical and infectious complications.
  
  
  METHODS
  Prospective randomized trial.
  
  
  METHODS
  Department of Nephrology of a single university hospital.
  
  
  METHODS
  Seventy-two consecutive patients initiating peritoneal dialysis were randomized to receive either a single cuff straight catheter or a single cuff curled catheter, implanted by percutaneous technique.
  
  
  RESULTS
  Significantly higher (p < 0.01) survival rate of the curled as compared to the straight catheter. The difference in catheter survival was due to a significantly higher (p < 0.01) incidence of drainage failure associated with catheter tip migration of the straight catheter than of the curled catheter. No difference in infectious complication between the two types of catheters was seen. Catheter survival at 12 months was 77% for the curled catheter and 36% for the straight catheter.
  
  
  CONCLUSIONS
  This study demonstrates superiority of the curled Tenckhoff peritoneal dialysis catheter survival as compared to the straight catheter. This difference in catheter survival is due to the higher displacement rate of the straight catheter.
authors.affiliation: Department of Nephrology, Rigshospitalet, University of Copenhagen, Denmark.
authors.forename: P K
authors.initials: PK
authors.lastname: Nielsen
authors.forename: C
authors.initials: C
authors.lastname: Hemmingsen
authors.forename: S U
authors.initials: SU
authors.lastname: Friis
authors.forename: J
authors.initials: J
authors.lastname: Ladefoged
authors.forename: K
authors.initials: K
authors.lastname: Olgaard
mesh_terms: D002404:Catheterization / Q000379:methods; D002408:Catheters, Indwelling / Q000009:adverse effects; D004867:Equipment Design; D004868:Equipment Failure; D005260:Female; D006801:Humans; D015993:Life Tables; D008297:Male; D008875:Middle Aged; D010531:Peritoneal Dialysis, Continuous Ambulatory / Q000295:instrumentation*; D010538:Peritonitis / Q000453:epidemiology; D011446:Prospective Studies; D013997:Time Factors