非小细胞肺癌隆突下淋巴结转移与临床病理特征的关系

Relationship between Subcarinal Lymph Node Metastasis and Clinicopathological Characteristics of Non-small Cell Lung Cancer

目的分析非小细胞肺癌隆突下淋巴结转移的方式和规律,以探讨其隆突下淋巴结合理的手术清扫方式。方法回顾性分析2002年9月至2011年10月河南省肿瘤医院608例非小细胞肺癌患者行肺切除加系统淋巴结清扫术的临床资料,其中男388例,女220例;平均年龄62.3(45～78)岁。肿瘤位于左肺上叶122例、左肺下叶119例、右肺上叶158例、右肺中叶40例和右肺下叶169例;隆突下淋巴结转移118例(19.4%)。病理类型:鳞癌244例,腺癌285例,其它癌79例。分析隆突下淋巴结转移与肺部肿瘤的部位、病理类型和临床病理特征的关系。结果不同肿瘤部位间发生隆突下淋巴结转移差异有统计学意义(P=0.000),右肺下叶肺癌发生隆突下淋巴结转移比率[45.8%(54/118)]最高;腺癌发生隆突下淋巴结转移比率[55.9%(66/118)]最高,其次为鳞癌(P=0.034)。随着肿瘤T分期的发展,隆突下淋巴结转移的可能性加大,并且左右肺中下叶癌患者隆突下淋巴结转移率大于肺上叶癌患者。结论肿瘤位于左肺或右肺上叶、临床T分期为cT1以内的鳞癌患者,隆突下淋巴结转移的可能性小。

Objective To analyze the modes and rules of subcarinal lymph node metastasis in non-small cell lung cancer patients, and explore appropriate surgical dissection strategy of subcarinal lymph nodes for patients with non-small cell lung cancer. Methods The clinical data of 608 patients with non-small cell lung cancer who underwent lung resection and systematic lymph node dissection in Henan Cancer Hospital from September 2002 to October 2011 were analyzed retrospectively. There were 388 males and 220 females with an average age of 62.3 （45-78）years. There were 122 patients with left upper lobe tumor, 119 patients with left lower lobe tumor, 158 patients with right upper lobe tumor, 40 patients with right middle lobe tumor and 169 patients with right lower lobe tumor. Subcarinal lymph node metastasis was observed in 118 patients （19.4%）. There were 244 patients with squamous carcinoma, 285 patients with adenocarcinoma and 79 patients with other types of carcinoma. The relationship of subcarinal lymph node metastasis with tumor location, patho- logical types and clinicopathological characteristics were analyzed. Results There was statistical difference in subcarinal lymph node metastasis rate among different tumor locations （P=0.000）. Subcarinal lymph node metastasis rate was the highest [45.8% （ 54/118 ） ] in patients with right lower lobe tumor. For patients with different pathological types, subcarinal lymph node metastasis rate was the highest [ 55.9% （66/118 ） ] in patients with adenocarcinoma, and then squamous carci- noma （P=0.034）. Subcarinal lymph node metastasis rate increased with the increase in T staging, and patients with tumors located in the middle or lower lobe of the left or right lung had a significantly higher subcarinal lymph node metastasis rate than patients with upper lobe tumor. Conclusion Subcarinal lymph node metastasis rate are lower in patients with left or right upper lobe tumor, patients with squamous carcinoma whose clinical T staging is within cT1.