ArticleJournal of medicine and life2026
Comparative performance of single-use flexible ureteroscopes with and without direct in-scope suction: a retrospective analysis.
Article in Journal of medicine and life, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Ureteroscopy represents the primary therapeutic approach for a broad spectrum of upper urinary tract stones. The aim of this study was to compare the efficiency of various models of single-use flexible ureteroscopes, some of them with direct in-scope suction (DISS) capabilities. A retrospective study was conducted over a 16-month period, including 75 consecutive patients who underwent retrograde intrarenal surgery for renal lithiasis. Patients were allocated into three groups according to the flexible ureteroscope used: a 7.5 Fr single-use ureteroscope without suction (Group A), a 7.5 Fr single-use ureteroscope with direct in-scope suction (Group B), and a 9.2 Fr single-use ureteroscope with a 5.1 Fr working channel and direct in-scope suction (Group C). Perioperative outcomes, residual stone fragments, and subjective intrarenal visualization were evaluated and compared among groups. A total of 75 patients were included, with stones most frequently located in the renal pelvis (40.0%), followed by the inferior (30.6%), middle (21.3%), and superior calyces (8.0%). Residual stone fragments were observed in 24.0% of cases in Group A, 16.0% in Group B, and 4.0% in Group C; although these differences did not reach statistical significance (
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