胸大肌肌皮瓣卷筒在下咽颈段食管环周缺损修复中的应用

目的 探讨胸大肌肌皮瓣卷筒在晚期喉咽及颈段食管肿瘤切除术后环周缺损修复中应用的可行性及远期疗效.方法 回顾性分析2004年12月至2008年10月对30例头颈鳞癌原发灶肿瘤切除后出现下咽和颈段食管环周缺损的患者选择行胸大肌肌皮瓣卷筒修复的临床资料.其中下咽癌22例,颈段食管癌7例,喉癌术后放疗后复发累及下咽1例.术前接受放疗者5例,外院手术后复发者3例.采用全喉全下咽切除者12例,全喉全下咽切除颈段食管切除者18例,均行胸大肌肌皮瓣卷筒修复.结果 术后咽瘘4例,其中2例有术前放疗史,2例有糖尿病史,均换药治愈.2例患者出现吻合口狭窄,均位于口咽部上吻合口处,经反复扩张后缓解,术后吞咽功能均恢复.全部患者均进行随诊,术后随访时间8～56个月,中位随访时间18个月.以Kaplan-Meier法计算生存率,1年及3年生存率分别为71.4%及42.5%.结论 胸大肌肌皮瓣卷筒修复晚期咽喉及颈段食管肿瘤切除后的下咽和颈段食管环周缺损效果可靠.可用于放疗及手术后复发肿瘤切除后环周缺损的修复.

Tubed pectoralis major myocutaneous flap for reconstruction of circumference pharyngoesophageal defects

Objective To investigate the feasibility and efficacy of tubed pectoralis major myocutaneous flap in the reconstruction of circumferential defects following resection for locally advanced hypopharygeal and cervical esophageal carcinoma. Methods From Dec. 2004 to Oct 2008, 30 patients underwent immediate reconstruction by tubed pectoralis major myocutaneous flap for circumferential defects following resection of primary tumours. Among them, 22 were hypopharyngeal carcinoma, 7 were cervical esophageal carcinoma and one was recurrent laryngeal carcinoma involved the hypopharyngeal lumen. Five of 30 patients had received previous radiotherapy and three had failed in the previous surgical procedure. In this series, 12 patients had total pharyngolaryngectomy and 18 had total pharyngolaryngectomy and partial cervical esophagectomy. Results Postoperative pharyngocutanous fistula formation occurred in 4 patients, 2 of them with previous radiotherapy and 2 with diabetes, and the fistulae healed later. Two patients developed anastomotic strictures at the upper junction, but they had good respondses to dilatation treatment and had satisfactory oral intake. The postoperative follow-up time ranged from 8 to 56 months. Median follow-up was 18 months. One-year survival rate was 71.4% and three-year survival rate was 42.5%. Conclusions The tubed pectoralis major myocutaneous flap is a reliable procedure to reconstruct hypopharyngeal circumferential defects following resection of advanced hypopharygeal and cervical esophageal carcinoma. This method may be the optimal choice for the reconstruction of hypopharyngeal circumferential defects following resection of recurrent carcinoma. The incidence of fistula and stenosis could be kept at an acceptable level.