140例胃间质瘤的外科治疗分析

目的 分析位于胃的胃肠道间质瘤（GIST）外科治疗效果及其影响因素.方法 对中山大学肿瘤防治中心外科1990年1月至2008年12月间收治的140例胃GIST临床资料和病理切片（含免疫组织化学检查）重新复核并加以随访,分析手术切除效果及影响手术疗效的因素.结果全组患者1、3、5年生存率分别为96.8%、86.7%和79.3%.肿瘤完全切除组术后1、3、5年生存率分别为98.1%、90.0%和85.4%,明显优于不完全切除术组的38.1%、0和0（P＜0.05）.完全切除术组中,肿瘤局部切除组与肿瘤及所在器官联合切除组患者的生存率比较,差异无统计学意义（P＞0.05）,但这两组分别与扩大切除术组生存率比较,差异有统计学意义（P＜0.05）.完全切除术组患者的生存率与肿瘤大小、肿瘤性质、核分裂及肿瘤复发转移有关;多因素Cox回归分析显示,患者术后生存率仅与肿瘤大小、核分裂和复发转移相关（P＜0.05）.结论 胃GIST仍以外科治疗为主,原则上施行局部完全切除即可.

Surgical treatment for 140 patients with gastric stromal tumors

Objective To analyze the outcome of the patients with gastric gastrointestinal stromal tumor (GIST) after surgical treatment and identify the associated risk factors. Methods Clinical data and the tissue slices including immunohistochemistry staining of 140 patients with gastric GIST from January 1990 to December 2008 were retrospectively reviewed. SPSS 16.0 for Windows software package was used for statistical analysis. Results The overall survival rates of 1-, 3-, 5-year were 96.8%,86.7% and 79.3%, respectively. The survival rates of 1-, 3-, 5-year were 98.1%, 90.0% and 85.4% in patients who underwent complete tumor resection. But the survival rates of 1-, 3-, 5-year were 38.1%, 0 and 0 in patients with incomplete tumor resection. The differences were statistically significant (P＜0.05). Gender, preoperative metastasis, tumor size, pathology type, karyokinesis, recurrence and metastasis were associated with survival rates in patients with complete tumor resection by univariate analysis. However, only tumor size, karyokinesis, recurrence and metastasis were associated with survival rates by Cox regression multivariable analysis (P＜0.05). Conclusion Surgery remains the main treatment for gastric GIST. Local complete resection is the principal treatment.