热缺血损伤是影响肾部分切除术术后肾功能恢复的一个重要因素,肾段动脉阻断可能成为替代传统肾动脉主干阻断的一种新型肾门血流阻断技术。本研究旨在评估腹腔镜下肾段动脉阻断技术的可行性,并比较其与传统的肾动脉主干阻断技术的手术效果。75例对侧肾脏正常的T1期肾癌患者被纳入研究,行后腹腔镜下肾部分切除术(laparoscopic partial Nephrectomy,LPN),其中A组37例患者行肾动脉主干阻断,手术时间为2007年6月至2008年8月;B组38例患者行肾段动脉阻断,手术时间为2008年8月至2009年11月。对比两组术中出血、手术时间、热缺血时间、术后并发症及手术前后分侧肾功能的差异。其中所有患者术前均行增强CT明确肿瘤大小、位置,B组患者均行CTA检查。纳入标准:单发 Hot ischaemia injury is an important factor affecting the recovery of renal function after partial nephrectomy. Renal artery occlusion may be a new type of nephron blood flow blocking technique that can replace the traditional renal artery occlusion. The purpose of this study was to evaluate the feasibility of laparoscopic renal artery occlusion and to compare its efficacy with conventional renal artery occlusion. Seventy-five patients with T1 normal renal cell carcinoma of the contralateral kidney were enrolled in the study. Laparoscopic partial nephrectomy (LPN) was performed. 37 patients in group A underwent renal artery occlusion and the operation time was 2007 From June to August 2008, 38 patients in group B underwent renal artery occlusion. The operation time ranged from August 2008 to November 2009. Compare the two groups of intraoperative bleeding, operation time, warm ischemia time, postoperative complications and sub-side renal function before and after surgery. All patients underwent enhanced CT preoperative tumor size, location, B group CTA examination. Inclusion criteria: single hair