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Comparative study of percutaneous nephrostomy using catheters with and without locking strings.

M-T Chuang1, C-H Lu, Y-S Tsai

  • 1Department of Diagnostic Radiology, National Cheng-Kung University Hospital, Tainan, Taiwan.

Clinical Nephrology
|September 6, 2011
PubMed
Summary

Catheters with locking strings did not show improved fixation or reduced displacement compared to those without. This study found no significant difference in complication rates or 90-day survival for percutaneous nephrostomy (PCN) catheters.

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Area of Science:

  • Urology
  • Nephrology
  • Medical Devices

Background:

  • Catheter displacement is a concern in percutaneous nephrostomy (PCN).
  • Locking strings are thought to improve catheter fixation.
  • Formal studies substantiating this benefit are lacking.

Purpose of the Study:

  • To compare the efficacy of PCN catheters with and without locking strings.
  • To evaluate fixation, displacement, and survival rates.
  • To inform clinical decisions regarding catheter selection.

Main Methods:

  • Retrospective chart review of 80 patients undergoing PCN.
  • Analysis of patient characteristics, catheter outcomes, and 90-day survival.
  • Comparison between catheters with and without locking strings.

Main Results:

  • No significant differences in patient characteristics or catheter outcomes were observed between groups (p > 0.05).
  • 90-day catheter survival showed no significant difference (log rank test, p = 0.638).
  • Tumor indication, obstruction, and displacement were independent factors for reduced survival.

Conclusions:

  • PCN catheters with locking strings did not demonstrate superior outcomes.
  • No significant difference in complication rates or 90-day survival was found.
  • Findings assist clinicians in choosing PCN catheter types.