胃窦癌胃周淋巴结转移规律的探讨

Metastatic status of lymph nodes in patients of distal gastric carcinoma

目的 探讨胃窦（胃L区）癌的淋巴结转移规律与临床病理因素之间的关系及其临床意义.方法 对2006年6月至2007年12月期间于西安交通大学医学院第一附属医院进行胃窦癌根治性淋巴结清扫手术的129例患者的手术切除标本进行解剖,分组收集切除淋巴结,逐枚进行病理组织学检查,判断淋巴结是否转移并计算各组淋巴结转移率,分析其与肿瘤大小、肿瘤部位、浸润深度、组织学类型、Borrmann分型等方面的关系.结果 本组129例胃窦癌患者的淋巴结转移阳性80例（62%）.共收获3295枚淋巴结,平均每例25.54枚,中位数24枚/例,转移淋巴结数889枚.胃窦癌患者No.1、No.3、No.4d、No.5、No.6、No.7、No.8a、No.9、No.11p、No.12a、No.14v各组淋巴结转移率分别为18.60%、48.84%、37.98%、38.76%、44.19%、31.01%、10.85%、14.73%、4.65%、1.55%及0.78%,其中以No3和No6组为最高.结论 在实施胃癌根治手术时,应综合考虑各临床病理因素,并结合胃窦区胃癌淋巴结分组、分站转移的特点,合理选择淋巴结清扫范围,以达到根治目的.

Objective To investigate lymph node metastases in distal gastric cancer and its clinical significance. Methods From June 2006 to December 2007, 129 distal gastric cancer patients underwent radical gastrectomy with lymphadenectomy. Dissected lymph nodes were collected in groups, and histopathological studies were performed to detect lymph node metastasis. The relationship between lymph node metastasis and tumor parameters such as diameter, location, infiltrating depth, histological category,Borrmann typing was evaluated. Results Lymph node metastases was found in 80 out of 129 patients （62%）. A total of 3295 lymph nodes were harvested with an average of 25.54 lymph nodes per patient,among those 889 lymph nodes were identified with metastasis. The metastasis rate was 18.60%, 48. 84%,37. 98%, 38. 76%, 44. 19%, 31.01%, 10. 85%, 14. 73%, 4. 65%, 1.55% and 0. 78% respectively in No. 1, No. 3, No. 4d, No. 5, No. 6, No. 7, No. 8a, No. 9, No. 11 p, No. 12a, No. 14v lymph node group.No. 3 and No. 6 group nodes were moat frequently invaded by metastasis. Conclusion This study provides the regular pattern of lymph node metastasis in distal gastric carcinoma patients undergoing radical gastrectomy and perigastric lymphadectomy which helps to guide lymphadectomy in terms of less trauma and favorite prognosis.