Laparoscopic partial nephrectomy versus laparoscopic cryoablation for multiple ipsilateral renal tumors

BACKGROUND: Management of multiple ipsilateral renal tumors is a dilemma in clinical practice. The effects of minimally invasive nephron-sparing procedures in this group of patients have not been assessed. OBJECTIVE: To evaluate the technical feasibility and outcomes of laparoscopic partial nephrectomy (LPN) and laparoscopic cryoablation (LCA) for multiple ipsilateral renal tumors. DESIGN, SETTING, AND PARTICIPANTS: Between September 1999 and December 2006, 27 patients were treated with minimally invasive nephron sparing surgery (LPN or LCA) for synchronous multiple ipsilateral renal tumors in a single operating session at our institution. Fourteen patients with 28 tumors underwent LPN, and 13 patients with 31 tumors underwent LCA as the sole treatment modality. INTERVENTION: Medical records were retrospectively reviewed and data were collected. MEASUREMENTS: Demographic, intraoperative, postoperative, and intermediate-term follow-up data were compared between the two groups. RESULTS AND LIMITATIONS: Patients in the LPN group had fewer tumors (2 vs. 2.4, p=0.04) and larger dominant tumor size (3.6 vs. 2.5 cm, p=0.005) in the affected kidney and lower preoperative serum creatinine levels (1 vs. 1.4 mg/dl, p=0.02). Compared to the LCA group, patients in the LPN group had greater estimated blood loss (200 vs. 125 ml, p=0.02) and longer hospital stays (90 vs. 52.3h, p=0.02). There were no open conversions, and no kidneys were lost. Complication rate, renal functional outcomes, and intermediate-term cancer-specific survival rates were similar between the two groups. CONCLUSIONS: Both LPN and LCA are viable options for patients with multiple ipsilateral renal tumors in select patients. Renal functional outcomes, complication rates, and intermediate-term survival rates are comparable between the two groups in this small series.     

腹膜后腹腔镜肾部分切除术治疗巨大肾肿瘤的手术经验探讨

目的:探讨腹膜后腹腔镜肾部分切除术治疗巨大肾肿瘤的手术经验及技巧。方法:回顾分析为5例巨大肾肿瘤患者行肾部分切除术的临床资料,观察手术成功率、手术时间、肾动脉阻断时间、术中出血量、术后引流量、术后下床活动时间、术后住院时间、短期并发症、患肾功能恢复等情况。结果:5例手术均获成功,无中转开放手术或行根治性切除术,中位手术时间105.0(90.0～115.0)min,中位肾动脉阻断时间29.0(25.0～31.0)min,术中出血量150.0(110.0～250.0)mL,术后引流量330(280～360)mL,术后下床活动时间3.0(3.0～4.0)d,术后住院时间8.0(7.0～9.0)d。术后3～6个月肾小球滤过率提示肾脏血供良好,无明显肾功能损害等异常。结论:腹膜后腹腔镜巨大肾肿瘤切除术是安全、可行的,术中沿包膜完整切除肿瘤、紧密缝合集合系统及应用分层免打结缝合、"2+1"缝合法是达到肿瘤切缘阴性、缩短热缺血时间、避免术后并发症的关键。     

高选择肾动脉阻断腹腔镜肾脏部分切除术治疗中央型肾肿瘤

目的:探讨中央型肾肿瘤腹腔镜肾部分切除术的手术技巧及结果。方法 :2006年6月～2011年6月,我院对8例中央型肾肿瘤施行腹腔镜下肾部分切除术。术中通过仔细游离肾蒂血管,选择性阻断或结扎滋养肿瘤的三级血管,以减少正常肾单位的热缺血时间和术中的出血。结果:8例手术均顺利完成,手术时间为150～300min,平均220min,肾血管阻断时间22～45min,平均33min。肿瘤大小为2.0～6.0cm,平均为2.8cm。需集合系统修补6例(75%)。术中出血量100～400ml,平均为130ml,均未输血。病理报告:肾透明细胞癌6例(75%),肾血管平滑肌脂肪瘤2例,术中及术后切缘均阴性。术后随访3～46个月,平均22.3个月,未见肿瘤局部复发或远处转移。结论:腹腔镜肾部分切除术治疗中央型肾肿瘤安全有效,选择性阻断或结扎滋养肿瘤的肾动脉三级分支可以有效减少正常肾单位的热缺血时间和出血,有利于该术式的开展。     

腹腔镜与开放保留肾单位手术治疗囊性肾癌的比较

【摘要】目的 评价腹腔镜保留肾单位手术(laparoscopice nephron-sparing surgery,LNSS)与开放保留肾单位手术(open nephron-sparing surgery,ONSS)治疗囊性肾癌的优劣。方法 回顾性分析14例分别行 LNSS 患者(n=6)与行 ONSS 患者(n=8)的临床资料,比较两组患者术中出血量、手术时间、热缺血时间、术后疼痛评分、术后引流管天数、住院天数及术后随访资料并行统计学分析。结果 LNSS 组术中出血量、术后疼痛评分明显小于 ONSS 组,LNSS 组热缺血时间及手术时间长于 ONSS 组,差异有统计学意义(P<0.05),引流管留置时间及住院天数两者差异无统计学差异。结论 LNSS与ONSS 两种术式在囊性肾癌的治疗中各有优势,LNSS创伤更小,术后恢复更快,但手术要求高。     

Laparoscopic nephrectomy, ex vivo partial nephrectomy followed by allograft renal transplantation

A shortage of available kidneys exists. Forty percent of patients with end stage renal disease wait more than 2 years for renal transplant. We report a case of a 22-year-old man who underwent laparoscopic radical nephrectomy for a 2-cm central renal mass. Ex vivo partial nephrectomy and renorraphy were performed. The reconstructed kidney was allotransplanted to a 62-year-old man with end stage renal disease. The recipient has excellent graft function. Imaging shows no evidence of recurrence or metastasis at 2 years' follow-up. Incidence and management of de novo renal cell carcinoma in renal allografts are reviewed.     

Hydro-Jet-assisted laparoscopic partial nephrectomy with no renal arterial clamping: a preliminary study in a single center

Objective

To describe our experience with Hydro-Jet-assisted laparoscopic partial nephrectomy (LPN) with no renal arterial clamping in 35 patients with renal cell carcinoma.

Methods

Hydro-Jet technique was used to incise the renal parenchyma, dissect the intrarenal vessels and collecting system during the LPN procedure in 35 patients with renal cell carcinoma. Patient demographics, tumor characteristics, perioperative data and renal function parameters were collected prospectively. All procedures were performed by a single surgeon.

Results

All LPN procedures were completed without conversion to open surgery or nephrectomy. The mean operation duration was 113.6 min (range 72–202). The mean blood loss was 149.4 ml (range 30–530). No Clavien ≥3 complication was observed in any patient. There was no significant difference between the preoperative GFR of the affected kidney and GFR at 3 months postoperation (54.9 vs. 54.2 ml/min, p = 0.063). Clear cell carcinoma was confirmed histopathologically in 30 patients (85.7 %), papillary renal cell carcinoma in four patients (11.4 %) and chromophobe renal cell carcinoma in one patient (2.9 %), all with negative surgical margins. No tumor recrudescence was observed during the mean follow-up period of 6.32 months (range 3–9 months).

Conclusion

The Hydro-Jet-assisted no-clamping LPN technique is safe, feasible and effective in selected cases. It could avoid intraoperative ischemia–reperfusion injury to the kidney. The learning curve should be further discussed, and its feasibility with larger and more complex endophytic tumors should be further explored in future controlled clinical trials with larger samples and long-term follow-up periods.

     

后腹腔镜下肾肿瘤剜除术的临床疗效观察(附5例报告)

目的：探讨后腹腔镜下肾肿瘤剜除术的操作要点及临床价值。方法：采用后腹腔镜下肾肿瘤剜除术治疗肾肿瘤5例，其中肾癌3例，肾错钩瘤2例，瘤体直径1．5～4．0cm。具体方法是：①暴露瘤体和肾动脉；②采用硅胶管牵拉肾动脉，必要时可暂时阻断肾动脉；③于瘤体1cm正常肾组织处用电钩切除瘤体；④采用生物蛋白胶、止血纱布缝合加压处理创面出血。结果：手术均获成功。手术时间150～210min，术中出血80～350ml。术后1～2天肠道功能恢复并可床上活动，1～4天可下床活动。术后住院5～9天，平均7天。结论：后腹腔镜下肾肿瘤剜除术具有创伤小、康复快、安全、住院时间短等优点；对外生性生长、直径小于4cm瘤体，该法可作为首选手术方法。     

Laparoscopic partial nephrectomy for renal leiomyoma: a case report

A 60-year-old man visited our hospital with a complaint of right renal incidentaloma which was pointed out on abdominal ultrasonography for a medical check-up. Abdominal computed tomography showed a renal tumor in the right kidney, which was a slightly high-dense relative to the renal parenchyma and was enhanced in the arterial phase. The tumor had grown gradually from 1.4 to 1.7 cm in diameter. After the observation for 4 years, he underwent pure laparoscopic non-ischemic partial nephrectomy using a microwave tissue coagulator. Histological examination of the specimen revealed a leiomyoma of the kidney. This is the 5th case of successful laparoscopic partial nephrectomy for renal leiomyoma in Japan within the retrieved references.     

Renal artery pseudoaneurysm after laparoscopic partial nephrectomy for renal cell carcinoma in a solitary kidney

Abstract Renal artery pseudoaneurysms are a well‐documented complication following trauma or percutaneous urological procedures, but are rare after partial nephrectomy. We present the case of a 34‐year‐old woman who, after undergoing a left nephrectomy in childhood due to Wilms’ tumor, had a pseudoaneurysm in a solitary kidney after laparoscopic right partial nephrectomy with extraperitoneal approach for a renal cell carcinoma. The segmental renal artery feeding the pseudoaneurysm was embolized with coils without significant loss of residual renal function.     

后腹腔镜下肾部分切除术治疗早期肾癌

目的 探讨后腹腔镜下肾部分切除术治疗早期肾癌的可行性及安全性.方法 肾癌患者65例.男45例,女20例.平均年龄52岁.临床分期均为T_1N_0M_0.肿瘤直径1.8～4.0 cm,单发.行后腹腔镜下肾部分切除术.术中用bulldog血管夹阻断肾动脉,距肿瘤边缘0.5～1.0 cm处完整切除肿瘤.结果 中转开放手术3例,改为根治性肾切除术1例.手术时间平均120(70～210)min,肾动脉阻断时间平均32(21～55)min,术中出血量平均60(20～200)ml,平均住院10.5(7～15)d.术后发生肾周血肿1例,尿瘘1例,保守治疗后痊愈.62例患者随访3～56个月,未见肿瘤复发.残肾功能良好.结论 后腹腔镜下肾部分切除术是治疗直径≤4 cm、局限性单发肾癌的有效方法.     

Transperitoneal laparoscopic partial nephrectomy in the renal tumor treatment

Laparoscopic surgery is a surgical technique the urologist should add to his surgical armamentarium. Its performance tries to mimic the surgical phases of open surgery, and also its indications. Laparoscopic partial nephrectomy is a sophisticated technique that requires wide experience in the performance of endoscopic strategies. We are submitting our experience with 35 laparoscopic partial transperitoneal nephrectomies with a mean follow-up of 25 months. The mean surgical time was 200 minutes, the mean bleeding 190 cc, and the mean hospitalisation five days. Two postoperative bleedings were identified, there were no conversions, and positive margins were notified in two cases, where upon a conservative attitude was adopted.     

腹腔镜肾部分切除术在治疗肾癌中应用进展

肾部分切除术作为一种保留肾单位手术得到广泛应用,随着手术技术及器械的发展进步,腹腔镜肾部分切除在国内外已得到大范围的推广,而机器人辅助腹腔镜肾部分切除术目前主要在国外一些大的医学中心开展,我国少数大医院也已开展.本文对腹腔镜肾部分切除术及机器人辅助腹腔镜肾部分切除术存肾癌中的临床应用作一综述.     

Laparoscopic partial nephrectomy in cold ischemia: renal artery perfusion

PURPOSE: Laparoscopic partial nephrectomy represents a feasible option for patients with small renal masses. We describe our initial experience with laparoscopic partial nephrectomy in cold ischemia achieved by renal artery perfusion. MATERIALS AND METHODS: From November 2001 to March 2003 laparoscopic partial nephrectomy in cold ischemia was performed in 15 patients with renal cell carcinoma. Cold ischemia was achieved by continuous perfusion of Ringers lactate at 4C through the renal artery, which was clamped. Tumor excision was performed in a bloodless field with biopsy taken from the tumor bed. The collecting system was repaired if needed. Renal reconstruction was performed by suturing over hemostatic bolsters. RESULTS: All procedures were successfully completed laparoscopically by our new technique. Mean operative time was 185 minutes (range 135 to 220). Mean ischemia time was 40 minutes (range 27 to 101). Estimated mean intraoperative blood loss was 160 ml (range 30 to 650). Entry to the collecting system in 6 patients was repaired intraoperatively. Additional vascular repair was done in 2 patients. There were no significant postoperative complications. Postoperative followup in 8 patients showed that the renal parenchyma was not damaged by the ischemic period. CONCLUSIONS: Our initial experience of incorporating cold ischemia via arterial perfusion into laparoscopic partial nephrectomy shows the feasibility and safety of the technique. We believe that this approach has the potential to make laparoscopic partial nephrectomy for renal cell carcinoma safe and reliable.     

原位肾低温灌注腹腔镜下肾部分切除术

目的 探讨一种改进的原位肾低温灌注方法在腹腔镜下肾部分切除术中的临床价值.方法 2009年3-5月,对5例解剖性或功能性孤立肾患者行原位肾低温灌注腹腔镜下肾部分切除术.男3例,女2例;平均年龄49(39～63)岁;肿瘤位于左侧2例,右侧3侧;肿瘤直径平均5.6(3.8～7.0)cm.慢性肾功能不全2例,孤立肾1例,对侧肾萎缩1例,较大良性肿瘤1例.术前经皮穿刺经股动脉介入方法在患侧肾动脉留置带球囊契压导管1根,术中契压导管的球囊注水以阻断患侧肾动脉,并通过契压导管在加压泵下持续向肾动脉内灌注4℃冰盐水约200 ml,以实现患侧肾脏低温原位灌注,同时行腹腔镜下肾部分切除术,术后抽出球囊水以解除肾动脉阻断.结果 5例均成功施行原位肾低温灌注腹腔镜下肾部分切除术,手术时间平均102(80～120)min,肾动脉阻断时间平均35(29～39)min,术中出血量平均190(50～300)ml.低温灌注后皮肤温度平均降低0.6℃,肾脏表面温度降低10.0℃,肿瘤表面温度平均降低9.8℃.术前、术后第1、3、5和10天患者肌酐清除率分别为(64.7±16.9),(48.9±14.5)、(52.1±12.4)、(54.5±13.8)和(54.6±11.7)ml/min,多个相关样本检验显示,各组之间肌酐清除率比较差异有统计学意义(P=0.001).术后第5天和第10天比较差异无统计学意义(P=0.125),其余组间比较差异有统计学意义(P=0.043),术后第5天肌酐清除率基本稳定.结论 原位肾低温灌注腹腔镜下肾部分切除术安全可行,同时解决了腹腔镜下动脉阻断和低温灌注难题,有利于延长肾缺血时间、保护肾功能.     

机器人辅助腹腔镜与腹腔镜肾部分切除术治疗巨大肾血管平滑肌脂肪瘤的疗效比较

目的:比较机器人辅助腹腔镜肾部分切除术(RAPN)与腹腔镜肾部分切除术(LPN)对巨大肾血管平滑肌脂肪瘤(RAML)的疗效。方法:回顾性分析浙江省人民医院2014年10月至2020年5月行手术治疗的43例巨大RAML(直径>7cm)患者的临床资料,其中23例行RAPN,20例行LPN。RAPN组男4例,女19例;中位年...