梨状窝癌的治疗和生存分析

目的探讨梨状窝癌治疗的疗效和影响预后因素。方法对浙江省肿瘤医院1995年12月至2002年12月收治的62例梨状窝癌手术治疗病例进行回顾性分析。其中T1期13例，1、2期17例，T3期12例，T4期20例。4例行术前放疗，40例行术后放疗，18例行单纯手术治疗。原发灶术式包括：13例梨状窝切除术；20例下咽部分切除及喉部分切除术；21例下咽部分切除及喉全切除术；8例下咽全切除、喉全切除及食管拔脱加胃代食管术。结果采用Kaplan—Meier法行生存分析，生存曲线显示总的3年、5年生存率分别为42．3％和27．8％，保留喉功能组和未保留喉功能组的3年生存率分别为51．9％和29．9％，5年生存率分别为39．5％和11．2％，两组差异有统计学意义（x^2=4．14，P〈0．05）。Cox回归模型分析显示T分期、是否行手术联合放疗的综合治疗是影响患者预后的独立因素。结论早期诊断、早期治疗以及综合治疗可提高梨状窝癌的生存率；早期患者及部分适宜的进展期患者行保留喉功能手术可提高患者牛活质量并取得较为满意的治疗效果。

Treatment and survival analysis of pyriform sinus cancer

OBJECTIVE: To evaluate the efficacy of surgery for the patients with pyriform sinus carcinoma and analyze the prognostic factors related to the cancer. METHODS: Between December 1995 and December 2002, 62 patients with pyriform sinus cancer were treated in Zhejiang Tumor Hospitol. There were 13 patients staged T1, 17 T2, 12 T3, 20 T4. Four patients received preoperative radiation and 40 patients had post-operative radiation. Among 62 patients, 33 patients were treated by partial laryngectomy, 29 patients were treated by total laryngectomy. RESULTS: The survival rate was calculated with Kaplan-Meier method. The overall 3- and 5-year survival rates were 42.3% and 27.8%, respectively. The 3-year survival rate between partial and total laryngectom was 51.9% and 29.9%. The 5-year survival rate between partial and total laryngectom was 39.5% and 11.2% (chi2 = 4.14, P<0.05). Early stage and combined modality therapy were the independent favorable prognostic factors. CONCLUSIONS: Early diagnosis with treatment and combined treatment are the most important factors influencing the survival of patients with pyriform sinus carcinoma Partial laryngopharyngectomy is a suitable treatment for early and selected advanced pyriform sinus carcinoma with a good function and oncologic outcome.