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  • Title: Guide wire directed manipulation of malfunctioning peritoneal dialysis catheters: a critical analysis.
    Author: Savader SJ, Lund G, Scheel PJ, Prescott C, Feeley N, Singh H, Osterman FA.
    Journal: J Vasc Interv Radiol; 1997; 8(6):957-63. PubMed ID: 9399464.
    Abstract:
    PURPOSE: To evaluate patency rates after guide wire directed manipulation of malfunctioning continuous ambulatory peritoneal dialysis (CAPD) catheters. MATERIALS AND METHODS: During a 58-month period, 23 patients underwent 34 outpatient guide wire directed manipulations of their CAPD catheter to improve function (n = 30) or reduce pain and improve function (n = 4) during dialysis. Catheter patency rates were subsequently determined by review of departmental, hospital, and dialysis center charts; procedural reports; and patient telephone interviews. RESULTS: Among 12 patients who underwent a single guide wire directed manipulation, long-term (> 30 days) catheter patency was achieved in seven (58%). With use of the Kaplan-Meier survival method, the 3-, 6-, and 12-month probability of patency after a single guide wire manipulation was 0.61, 0.54, and 0.11, respectively. The mean duration of patency achieved in this group was 131 days (range, 2-421 days). In those patients (n = 8) who underwent multiple catheter manipulations (n = 19), 11 (58%) procedures resulted in long-term patency, with each patient (100%) achieving at least one such period. The Kaplan-Meier survival method determined the probability of patency in this group at 3, 6, and 12 months to be 0.75, 0.69, and 0.54, respectively. The mean secondary catheter patency was 235 days (range, 2-646 days). Overall, 75% of patients followed up achieved at least one period of long-term catheter patency during the time of this study. One (3%) episode of postprocedure peritonitis occurred. CONCLUSION: Guide wire directed CAPD catheter manipulation is a relatively simple outpatient procedure that restores long-term catheter function for most patients with minimal risk for a major complication. Patients with nonfunctioning CAPD catheters who do not have peritonitis or sepsis will most likely benefit from at least one attempt at radiologic manipulation of their catheter.
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