Micropercutaneous nephrolithotripsy: initial experience

Ölçücüoğlu, Erkan; Kasap, Yusuf; Ölçücüoğlu, Esin; Şirin, Mehmet Emin; Gazel, Eymen; Taştemur, Sedat; Odabas, Öner
July 2015
Videosurgery & Other Miniinvasive Techniques / Wideochirurgia i;2015, Vol. 10 Issue 3, p368
Academic Journal
Introduction: For small renal calculi (< 2 cm) the currently available treatment options include extracorporeal shockwave lithotripsy (ESWL), retrograde intrarenal surgery (RIRS) and standard/mini percutaneous nephrolithotomy (PNL). A new method, microperc, has therefore been developed, in which a smaller tract size and smaller instruments were used. Aim: To present our clinical experiences with micropercutaneous nephrolithotripsy (microperc) in the treatment of small renal calculi. Material and methods: We retrospectively evaluated patients with small renal calculi who underwent microperc between February and June 2013. A 4.8 Fr 'all-seeing needle' was used to achieve percutaneous renal access with the C-arm fluoroscopy guidance in the prone position. Holmium: YAG laser 272 μm fiber was used for stone fragmentation. Results: A total of 20 patients underwent the microperc procedure. The mean age of the patients was 46.5 ± 13.8 years. The mean stone size was 13 ± 3 mm. The stone-free rate (SFR) was 90% (18/20). Two patients had clinically significant residual fragments (= 4 mm). The mean operation and fluoroscopy times were 107.5 ± 37 min and 45 ± 40 s respectively. The mean postoperative drop in hemoglobin was 1.2 ± 0.9 g/dl, and 1 patient required blood transfusion. The patients were discharged after an average hospitalization of 1.4 ± 0.8 days. Two complications, urinary tract infection and blood loss requiring blood transfusion, were observed in 2 patients postoperatively. Conclusions: We suggest that microperc should be considered for the treatment of small renal stones.


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