摘要
背景与目的新辅助化疗是当前肺癌治疗的热点,已被证实能够提高肺癌患者的手术切除率和5年生存率,但其对手术安全性的影响尚无定论。本研究旨在探讨新辅助化疗对肺动脉血管壁结构的影响,以进一步评估其对肺癌患者手术安全性的影响。方法选择术前化疗病例32例(试验组),术前未接受化疗病例36例(对照组),均行肺叶或全肺切除和纵隔淋巴结清除术。于术中观察胸内结构的变化,术后切取肺动脉血管壁进行病理学检查。结果试验组术中胸膜纤维化和血管鞘膜增厚的发生率分别为59.38%和68.75%,对照组分别为22.22%和19.44%(P均<0.01)。试验组光镜下65.62%有内皮细胞的脱落、破裂或增生,59.38%可见内弹力膜断裂、聚集或不完整,71.88%可见中膜平滑肌组织结构紊乱、排列不整齐,以及胶原纤维、弹性纤维的断裂,而对照组相应结构的类似表现仅分别为33.33%、19.44%和22.22%(P均<0.01)。结论新辅助化疗能够引起胸膜纤维化和鞘膜增厚并增加肺动脉血管的脆性,从而可能增加手术的难度和风险。
Background and objective Neoadjuvant chemotherapy is one of the hot points of lung cancer therapy,which has been proven to be able to improve resection rate and 5-year survival of patients.But its effect on operation safety is not clear yet.The aim of this study is to confirm the effect of neoadjuvant chemotherapy on pulmonary arterial wall so as to assess its safety for operation in patients with lung cancer.Methods Thirty-two patients underwent lobectomy or pneumonectomy with mediastinal lymphadenectomy after a neoadjuvant chemotherapy,compared with 36 patients surgically treated only.During the operation,the changes of thoracic structure were observed.After the operation,the pulmonary artery specimens were detected pathologically.Results The incidence of pleural fibrosis and thickening of pulmonary arterial tunica adventitia in neoadjuvant chemotherapy group was significantly higher than those of control group(59.38% vs 22.22%,P<0.01;68.75% vs 19.44%,P<0.01).The incidence of tunica intima,internal elastic membrane and tunica media damage in neoadjuvant chemotherapy group was also markedly higher than those of control group(65.62% vs 33.33%,P<0.01;59.38% vs 19.44%,P<0.01;71.88% vs 22.22%,P<0.01).Conclusion Neoadjuvant chemotherapy may lead to pleural fibrosis and thickening of pulmonary arterial tunica adventitia and increase crispness of pulmonary arterial wall,which may increase difficulty and risk of operation.
出处
《中国肺癌杂志》
CAS
2007年第6期495-499,共5页
Chinese Journal of Lung Cancer
关键词
肺肿瘤
新辅助化疗
血管脆性
Lung neoplasms Neoadjuvant chemotherapy Crispness of vessels
