Balloon Dilator Versus Telescopic Metal Dilators for Tract Dilatation During Percutaneous Nephrolithotomy for Staghorn Stones and Calyceal Stones

Overview

Journal Arab J Urol

Date 2015 Sep 29

PMID 26413325

Citations 5

Authors

Mohamed El-Shazly

Shady Salem

Adel Allam

Badawy Hathout

Affiliations

Soon will be listed here.

Abstract

Objective: To compare the results of balloon dilatation (BD) vs. telescopic metal dilators (TMDs) in establishing the tract for percutaneous nephrolithotomy (PCNL) in patients with calyceal stones or staghorn stones, but with no hydronephrosis.

Patients And Methods: Data from selected patients over 4 years were recorded retrospectively. Patients with complex staghorn stones, an undilated targeted calyx, or the stone filling the targeted calyx, were included in the study. In all, 97 patients were included, of 235 undergoing PCNL between March 2010 and March 2014, and were divided into two groups according to the technique of primary tract dilatation. Group A included patients who had BD and group B those treated using TMDs.

Results: In group A (BD, 55 patients) dilatation was successful in 34 (62%). The dilatation failed or there was a need for re-dilatation using TMD in 21 patients (38%). In one of these 21 patients the dilatation failed due to extravasation. In group B (TMD, 42 patients) dilatation was successful in 38 (90%) patients, with incomplete dilatation and a need for re-dilatation in four (10%) patients, and no failed procedures. Group A had a significantly higher failure rate than group B (P < 0.001). Differences in operative duration, blood loss, stone-removal success rate and complication rate were statistically insignificant.

Conclusion: BD has a higher failure rate than TMD when establishing access for calyceal stones or staghorn stones that have little space around them.

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