Vol. 45 (6): 1161-1166, November – December, 2019

doi: 10.1590/S1677-5538.IBJU.2019.0219


Sun Hui 1, Yang Qingya 1, Yin Xinbao 1, Liu Ming 1, Li Gonghui 2, Chen Jun 1
1 Qilu Hospital of Shandong University, Qingdao, China; 2 Sir run run shaw Hospital of Zhejiang University, Hangzhou, China


Purpose: To compare two-shift operation mode and single player mode different impact on surgical results and operator comfort in fl exible ureteroscopic holmium laser lithotripsy for renal calculi larger than 1.5cm.
Materials and methods: From December 2017 to December 2018, 92 patients with renal calculi admitted to Qilu Hospital and were treated through fl exible ureteroscopy. They were randomized in two-shift group (n=50) and single player group (n=42). The operative time, blood loss, hospitalization stay after operation, residual fragments (≥4mm) rate, fragmentation speed, postoperative complications and operator’s fatigue score were compared.
Results: There was no signifi cant difference between two groups regarding age, gender, illness side, stone size, blood loss, operative time, postoperative hospitalization stay, complications, etc (p >0.05). The fragmentation speed was 44.5±20.0mm3/min in two-shift group compared with 34.2±17.3mm3/min in single player group (p=0.037).
Residual fragments (≥4mm) rate after fi rst surgery was 18% in two-shift group, while the residual fragments (≥4mm) rate was 40.5% after fi rst surgery in single player group (p=0.017). The total fatigue score of two-shift group was 8.4 compared to 29.9 in single player group (p <0.001).
Conclusion: In fl exible ureteroscopic holmium laser lithotripsy for the treatment of renal calculi larger than 1.5cm, two-shift operation mode can raise the fragmentation speed and stone clearance rate, as well as signifi cantly lower operator’s fatigue level and improve operator’s comfort.

Keywords: Ureteroscopy; Lithotripsy, Laser; Kidney Calculi

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