肾部分切除术治疗肾肿瘤的安全性及疗效分析

目的 评价肾部分切除术治疗肾肿瘤的安全性及有效性.方法 回顾性分析56例行肾部分切除术患者的临床资料.术中肾动脉阻断时间≤30 min者28例.＞30 min者28例.采用99Tcm-DTPA肾核素扫描检测术前术后分肾的肾小球滤过率(GFR),比较两组患者术中出血量、手术时间、术后住院日、并发症发生率以及术前、术后1周和术后6个月的GFR值,明确肾热缺血安全时限,并随访远期生存情况.结果 术后随访30～48个月,平均36个月,总体生存率和肿瘤无复发生存率分别为100%和98%.阻断时间≤30 min和＞30 min组患者术中失血量、手术时间、术后住院日及并发症比较,差异均无统计学意义(P＞0.05).两组术前患肾GFR分别为(42.9±4.9)、(42.8±5.6)ml/min,术后1周为(34.2±4.9)和(30.4±5.2)ml/min,前者GFR降低程度低于后者,差异有统计学意义(p=0.007).术后6个月时肾热缺血时间≤30 min组患肾GFR为(41.2±4.3)ml/min,与术前相比,差异无统计学意义(P＞0.05);＞30 min组GFR为(38.1±5.0)ml/min,仍明显低于术前水平(P=0.001).结论 肾部分切除术治疗肾肿瘤局部复发率低,远期生存率高,并发症发生率低,而且能最大限度地保留功能性肾单位,安全有效.术中阻断肾血管可以有效减少术中失血,将热缺血时间控制在30 min内,对肾功能影响较小,安全可行.

Abstract：

Objective To report the safety and efficacy of partial nephrectomy (PN) in 56 patients with renal tumors. Methods A retrospective analysis was performed for 56 patients who were treated with PN.Patients were divided into two groups according to the occlusion time.The occlusion time for Group 1 was≤30 min in 28 cases,and Group 2＞30 min in 28 cases.All patients underwent pre-and post-operation 99Tcm-diethylenetriamine pentoacetic acid renal scintigraphy, to determine the renal glomerular filtration rate (GFR).The GFR values, amount of blood loss during operation,operative time,postoperative hospital stay and the complications rate were compared between the two groups prior to surgery and one week and six months post-surgery.All patients were followed-up.Results The average follow-up time was 36 (30-48) months.The overall survival rate and tumor recurrence-free survival rate were 100% and 98%.There was no significant difference between vessel clamp time≤30 min and＞30 min in the amount of intraoperative blood loss,operative time,postoperative hospital stay and complications rate,P values were 0.266,0.487,0.879 and 1.000.The preoperative and 1 week postoperative GFR values of the two groups were (42.9±4.9) and (34.2±4.9),(42.8±5.6) and (30.4±5.2) ml/min.The difference was significant(P=0.007).The GFR values were (41.2±4.3)ml/min at 6 months after surgery for Group 1,compared with that before surgery,but the difference was not significant (P＞0.05).While the GFR values were (38.1±5.0) ml/min for Group 2,and the GFR for Group 2 did not recover to the preoperative level (P=0.001). Conelusions PN for renal tumors could be a safe and effective treatment option.The damage on renal function could be minimal when the renal artery clamping time is controlled to within 30 min.

The safety and efficacy of partial nephrectomy in the treatment of renal tumors

Objective To report the safety and efficacy of partial nephrectomy (PN) in 56 patients with renal tumors. Methods A retrospective analysis was performed for 56 patients who were treated with PN.Patients were divided into two groups according to the occlusion time.The occlusion time for Group 1 was≤30 min in 28 cases,and Group 2＞30 min in 28 cases.All patients underwent pre-and post-operation 99Tcm-diethylenetriamine pentoacetic acid renal scintigraphy, to determine the renal glomerular filtration rate (GFR).The GFR values, amount of blood loss during operation,operative time,postoperative hospital stay and the complications rate were compared between the two groups prior to surgery and one week and six months post-surgery.All patients were followed-up.Results The average follow-up time was 36 (30-48) months.The overall survival rate and tumor recurrence-free survival rate were 100% and 98%.There was no significant difference between vessel clamp time≤30 min and＞30 min in the amount of intraoperative blood loss,operative time,postoperative hospital stay and complications rate,P values were 0.266,0.487,0.879 and 1.000.The preoperative and 1 week postoperative GFR values of the two groups were (42.9±4.9) and (34.2±4.9),(42.8±5.6) and (30.4±5.2) ml/min.The difference was significant(P=0.007).The GFR values were (41.2±4.3)ml/min at 6 months after surgery for Group 1,compared with that before surgery,but the difference was not significant (P＞0.05).While the GFR values were (38.1±5.0) ml/min for Group 2,and the GFR for Group 2 did not recover to the preoperative level (P=0.001). Conelusions PN for renal tumors could be a safe and effective treatment option.The damage on renal function could be minimal when the renal artery clamping time is controlled to within 30 min.