Purpose : To determine the efficacy of correction of a malfunctioning peritoneal dialysis catheter withguidewire and stiffener under fluoroscopic guidance. Materials and Method : Between November 1994 and March 1997,we performed 15 manipulations in 12 patients in whom a dual-cuff, straight Tenckhoff peritoneal dialysis catheterhad been implanted due to chronic renal failure. The causes of catheter malfunctioning were inadequate drainage ofthe dialysate(n=14) and painful dialysis(n=1). Under fluoroscopic guidance, adhesiolysis and repositioning of themalfunctioning catheter were performed with an Amplatz Super Stiff guidewire and the stiffener from a biliarydrainage catheter. The results of procedures were categorized as either immediate or durable success, this latterbeing defined as adequate catheter function for at least one month after the procedure. Results : Immediatesuccess was achieved in 14 of 15 procedures (93%), and durable success in 7 of 15 (47%). The mean duration ofcatheter function was 157 (range, 30 to 578) days. After manipulation, abdominal pain developed in eight patientsand peritonitis in two, but with conservative treatment, these symptoms improved. Conclusion : The correction of amalfunctioning peritoneal dialysis catheter with guidewire and stiffener under fluoroscopic guidance is aneffective means of restoring catheter function and may be an effective alternative to surgical reimplantation ofthe catheter, or hemodialysis.