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  • Title: Malpositioned peritoneal dialysis catheters: a critical reappraisal of correction by stiff-wire manipulation.
    Author: Moss JS, Minda SA, Newman GE, Dunnick NR, Vernon WB, Schwab SJ.
    Journal: Am J Kidney Dis; 1990 Apr; 15(4):305-8. PubMed ID: 2321641.
    Abstract:
    Tenckhoff peritoneal dialysis (PD) catheter malposition is one of the leading causes of catheter malfunction. Fluoroscopically directed stiff-wire manipulation of malpositioned PD catheters has been advocated as a method of catheter salvage. Two hundred eighty-nine single-cuff PD catheters were placed surgically into 203 patients during this 4-year study. Thirty-three patients developed catheter malfunction attributed to malposition. Forty-eight stiff-wire manipulations were performed on these patients. Thirty-eight (78%) of the manipulations were described as successful at the time of transfer from radiology. However, only 25 (51%) and 12 (25%) resulted in functioning catheters at 1 week and 1 month, respectively. Only 11 of 33 patients who underwent manipulation had functional prolongation of catheter life beyond 1 month. The PD catheter was replaced by a column-disk PD catheter without additional catheter dysfunction in six patients. A second single-cuff Tenckhoff PD catheter was inserted in another six patients. Three of these six catheters again malpositioned. We conclude that stiff-wire manipulation is a useful and safe technique worth using on a limited basis for the initial episode of catheter malposition. Catheters that repetitively malposition should be replaced with a catheter that is resistant to malpositioning.
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