系统的淋巴结清扫术在子宫内膜癌治疗决策中的价值及可行性分析

背景与目的：淋巴结清扫术在子宫内膜癌治疗中的价值一直有争议，国内多数医院仅对部分高危型子宫内膜癌患者行淋巴结活检或选择性盆腔淋巴结切除术，罕有妇科医生对子宫内膜癌行系统的盆腔淋巴结清扫＋腹主动脉旁淋巴结清扫。本文探讨系统的淋巴结清扫术在子宫内膜痛治疗决策中的价值以及手术的可行性。方法：回顾2005年1月-2008年7月在我院行系统的腹膜后淋巴结清扫术的128例子宫内膜癌，对其临床病理特点、淋巴结转移情况、术后治疗决策改变情况以及手术并发症进行分析。结果：128例患者中19例（14．8％）出现淋巴结转移，其中盆腔淋巴结转移15例（11．7％），腹主动脉旁淋巴结转移11例（8．6％），7例患者同时出现盆腔及腹主动脉旁淋巴结转移，4例患者仅有腹主动脉旁淋巴结转移。病理类型、组织学分化程度、肌层浸润深度以及淋巴血管间隙浸润与淋巴结转移相关（P〈0．05）。15例患者因淋巴结转移分期升级，术后需要辅以化疗和／或放疗；另50例中危、中高危早期患者因手术排除了子宫外转移免去术后辅助治疗。8例（6．3％）患者术后出现并发症，其中盆腔感染3例，阴道残端出血2例，不全性低位肠梗阻、深静脉血栓伴淋巴囊肿和腔隙性脑梗塞各1例。中位手术时间为150min．中位出血量为300mL，其中27例（21．1％）患者接受输血治疗。结论：在子宫内膜癌患者中行系统的淋巴结清扫足安全可行的，通过全面的手术分期可以明确淋巴结转移情况，准确提供预后相关信息，指导术后辅助治疗。

Role of systematic lymphadenectomy in the treatment strategy of endometrial cancer and feasibility study for carrying out the surgery

Background and purpose: The role of lymphadenectomy for endometrial cancer is still controversial. Few gynecologists in China carry out pelvic and/or para-aortic lymphadenectomy for patients with endometrial cancer. The aim of the current study was to investigate the role of systematic lymphadenectomy in the treatment strategy of endometrial cancer and the feasibility in carrying out the surgery. Methods: We performed a retrospective chart review of all patients with endometrial cancer who experienced surgical staging at Cancer Hospital, Fudan University from January 2005 to July 2008. Lymph nodes metastatic status, alteration of adjuvant therapy and surgical complications were discussed. Results: Nineteen (14.8%) of 128 patients undergoing systematic lymphadanectomy had lymph node metastases: both pelvic and para-aortic in 7 patients, only pelvic in 8 patients, and exclusively isolated to the para-aortic area in 4 patients. Therefore, more than half of the patients with lymphatic dissemination had para-aortic lymph nodes metastases. Tumor grade, histological type, myometrial invasion and lymph-vascular space invasion were associated with lymph nodes metastases. Adjuvant chemotherapy and/or tumor-directed radiotherapy were needed for 15 patients upstaged due to lymph-nodal invasion (P<0.05). Furthermore, adjuvant therapy was eliminated for 50 intermediate/intermediate-high risk patients with negative lymph nodes and extrauterine spread. Complications were found in 8 patients: 3 pelvic infection, 2 residual vaginal bleeding, and 1 pero-bowel obstruction, 1 deep venous thrombosis accompanied with lymphocyst, and 1 lacunar infarction. The median time of the procedure was 150 minutes, median blood loss was 300 mL, and 27 patients received blood transfusion. Conclusion: The findings of the current study suggest that it is safe and feasible to carry out systematic lymphadenectomy in women with endometrial cancer. Surgical staging can assess the status of lymph nodes, provide accurate prognostic information, and help to formulate adjuvant therapy after surgery.