PMID- 34515252 OWN - NLM STAT- MEDLINE DCOM- 20221215 LR - 20221215 IS - 1423-0399 (Electronic) IS - 0042-1138 (Linking) VI - 106 IP - 12 DP - 2022 TI - Double-Sheath Vacuum Suction Minimally Invasive Percutaneous Nephrolithotomy for Management of Large Renal Stones. PG - 1241-1245 LID - 10.1159/000518259 [doi] AB - OBJECTIVES: This study aimed to describe a novel double-sheath vacuum suction minimally invasive percutaneous nephrolithotomy (mini-PCNL) to overcome the deficiencies of the conventional procedure. PATIENTS AND METHODS: Between March 2019 and December 2019, 65 patients (37 males and 28 females) with a mean age of 41 years (range 23-69) underwent mini-PCNL with double-sheath vacuum suction. It consisted of an F20 Y-shaped sheath as an outer sheath and an F16 Y-shaped sheath as an inner sheath, in which the inner sheath was longer than the outer sheath. The oblique arm of the outer sheath and the inner sheath was connected to the perfusion inflow and the vacuum suction, respectively. A 550-mum holmium-YAG laser was introduced for stone fragmentation through the working channel of the mini-nephroscope, which was no longer connected to the perfusion fluid. RESULTS: All procedures were successful. Mean operation time was 50.2 min (range 39-83). Mean hemoglobin decrease was 5.2 g/L (range 1.0-15.5), and no patient needed a blood transfusion. One patient (1.5%) with low fever (<38 degrees C) at day 1 had returned to normal at day 2 without administration of antibiotics. There were no Clavien grade 2-4 complications. Mean postoperative hospital stay was 2.4 days (range 2-6). The initial stone-free rate of PCNL was 81.53% (53 of 65 patients). One month after surgery, the final stone-free rate increased to 90.77% (59/65 patients). CONCLUSIONS: The double-sheath vacuum suction mini-PCNL is a safe and effective modality for large renal stones, which might increase the efficiency of stone extraction with low intrapelvic pressure. CI - (c) 2021 S. Karger AG, Basel. FAU - Wu, Zhong-Hua AU - Wu ZH AD - Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China, daydreamwu@sina.com. FAU - Wang, Yong-Zhi AU - Wang YZ AD - Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China. FAU - Liu, Tong-Zu AU - Liu TZ AD - Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China. FAU - Wang, Xing-Huan AU - Wang XH AD - Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China. FAU - Zheng, Hang AU - Zheng H AD - Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China. FAU - Zhang, Yin-Gao AU - Zhang YG AD - Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China. LA - eng PT - Journal Article DEP - 20210824 PL - Switzerland TA - Urol Int JT - Urologia internationalis JID - 0417373 SB - IM MH - Humans MH - Young Adult MH - Adult MH - Middle Aged MH - Aged MH - *Nephrolithotomy, Percutaneous OTO - NOTNLM OT - Double-sheath vacuum suction OT - Percutaneous nephrolithotomy OT - Renal stone OT - Vacuum suction EDAT- 2021/09/14 06:00 MHDA- 2022/12/16 06:00 CRDT- 2021/09/13 09:27 PHST- 2020/12/15 00:00 [received] PHST- 2021/06/22 00:00 [accepted] PHST- 2021/09/14 06:00 [pubmed] PHST- 2022/12/16 06:00 [medline] PHST- 2021/09/13 09:27 [entrez] AID - 000518259 [pii] AID - 10.1159/000518259 [doi] PST - ppublish SO - Urol Int. 2022;106(12):1241-1245. doi: 10.1159/000518259. Epub 2021 Aug 24.