Abstract
Objectives:
We conduct a study to assess the outcome of microultrasonic probe combined with ultrasound (US)-guided minipercutaneous nephrolithotomy (PCNL) for upper ureteral and renal stones.
Patients and Methods:
Data of 119 patients (123 kidney units) who underwent microultrasonic lithotripsy combined with mini-PCNL were retrospectively reviewed. The group included 96 men and 23 women. All procedure of puncture and dilatation were guided by US solely. Data were analyzed by SPSS.
Results:
The mean operation time was 32.6 minutes (range, 10–110 minutes). The mean time of lithotripsy and stone removal was 14.5 minutes (3–100 minutes). The mean postoperative length of stay was 2.7 days (1–7 days). Besides, stone-free rate (SFR) at discharge was 95.9% (118/123). The mean hemoglobin drop was 11.6 mg/dL (range 1–26 mg/dL). Grades I, II, and IIIa complications were observed in four, one, and one patients, respectively. Subgroup analysis was done to compare the outcomes of 20 mm or less vs 21 mm or more calculi. There was a longer operation duration (40 vs 29 minutes) and lower SFR in the 21 mm or more calculi subgroup.
Conclusions:
Microultrasonic probe combined with US-guided mini-PCNL is an effective and safe procedure to treat patients with upper ureteral and renal stones with higher SFR but lower complications.
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