ackground : The key to successful chronic peritoneal dialysis is a permament and safet
access to the peritoneal cavity. Despite of improvement in catherter survival over the last
several years with reduction in the incidence of peritonitis, catheter-related complications still
occur, caustin significant morbidity and oftern forcing removal of the catheter.
Methods ; This study analyzed the experience of 115 peritoneal dialysis catheters (56
straight Tenckhoff (ST), 30 swan neck (SN), and 29 curl bent neck (CBN) cateters)
retrospectively, and compared 3 catherters with respect to catheter survival and
catheter-related complication rate.
Results ; By life table analysis, the cumulative survival rate of each catheters was as
follow : ST catheter were 0.93, 0.91, 0.87, and 0.83 at 1,3,6, and 12 month respectively.
Those of SN catheter 0.87,0.800.73 and 0.72, and CBN catheter 0l.90,0.90,0.86 and 0.79. There
was no significant difference among 3 type of catheter with respect to catheter survival.
There were 33 catheter failures (22 ST, 8 SN, and 5 CBN) due to peritonitis and
catheter-related complications. The causes of catheter removal among 3 type of catheter are
not different statistically. The exit site infection rate was 0.044 case/ patient-month in ST,
0.051 in SN, and 0.036 in CBN catheters. Dislocation rate was 0.024 in ST, 0.032 in SN, and
0.046 in CBN catheters. Leakage rate was 0.008 in ST, 0.009 in SN, and 0.021 in CBN
catheters. Obstruction rate was 0.003 in ST, none in SN, and 0.015 in CBN catheters. Tunnel
infection rate was 0.002 in ST, 0.003 in SN, none in CBN catheters. Herniation rate was
0.002 in ST, 0.0032 in SN, and none in CBN catheters. There was no significant difference
among 3 type of catheter with respet to cathetr-related complication rate. Peritonitis rate
was 0,21 case/patient-month in ST, 0.136 in SN, and 0.143 in CBN catheters. The peritonitis
rate was not significant among 3 types of catheter.
Conclustion : These results indicate that there is no differece among 3 types of peritoneal
catheter with respect to catheter survival and catheter-related complications.
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