关键词: 微创经皮肾穿刺术, 肾盂内压, 灌注液用量 , 肾结石, 监测仪

Abstract:

Objective To evaluate the method of controlling renal pelvic pressure in single tract minimally invasive percutaneous nephrolithotomy （MPCNL）. Methods Eighty patients with renal stones underwent MPCNL were selected and assigned to two groups. The observation group （40 cases） was treated with real?time intraoperative monitoring of renal pelvic pressure operation ，adjustment of the perfusion fluid filling and flowing，and control of the intra?pelvic pressure，The control group（40 cases） only was recorded the intra?pelvic pressure. The perfusion fluid volume ，average renal intrapelvic pres? sure，intrapelvic pressure ≥30 mmHg cumulative time，operation time and postoperative complications were compared between the two groups. Results For the observation group and the control group，the perfusion fluid volume（L）were 14.5±3.8，26.8±6.5，the average renal intrapelvic pressure （mmHg） were 14.33±3.71，28.4±5.5，the renal intra?pelvic pressure ≥30 mmHg cumulative time（s）were 42.4± 5.7，368.4±20.7，which demonstrated significant differences （P<0.05）. The average operation time （min）were 123±20，119±31，with no significant difference（P>0.05）. The occurrences of postoperative pain，fever，WBS increase in the control group were significantly higher than the test group （P<0.05）. Conclusion         The operation of controlling liquid perfusion volume can produce effective control of renal pelvis pressure operation in the MPCNL，which makes the operation safer.

Key words: MPCNL, monitor, perfusion fluid volume, renal pelvic pressure, renal calculi