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吻合口与非吻合口处残胃癌的临床病理学特征及预后的差异研究 被引量:12

Study on the clinicopathologic characteristics and prognostic difference of gastric stump cancer between non-anastomotic site and anastomotic site
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摘要 目的 探讨吻合口与非吻合口处残胃癌的临床病理特点及预后差异。方法 回顾性分析1999年1月至2015年6月间在福建省肿瘤医院胃肠外科接受手术治疗(包括根治性和姑息性手术)的149例残胃癌患者的临床资料。残胃癌定义为因胃良性病变行胃部分切除术后5年以上(87例)或因胃恶性病变行根治性胃部分切除术后10年以上(62例)的残胃原发癌。根据肿瘤的不同部位,分为吻合口组(72例)和非吻合口组(77例),比较两组患者的临床病理学特征、手术情况、淋巴结转移情况及预后。结果 与非吻合口组相比,吻合口组T分期、N分期和TNM分期更晚[吻合口组T1、T2、T3和T4期患者有1例(1.4%)、2例(2.8%)、17例(23.6%)和52例(72.2%),非吻合口组分别有8例(10.4%)、10例(13.0%)、27例(35.1%)和32例(41.6%),χ2=17.665 ,P= 0.001;吻合口组N0、N1、N2和N3期患者分别有28例(38.9%)、10例(13.9%)、23例(31.9%)和11例(15.3%),非吻合口瘘组分别有55例(71.4%)、10例(13.0%)、7例(9.1%)和5例(6.5%),χ2= 19.421,P= 0.000;吻合口组Ⅰ、Ⅱ、Ⅲ和Ⅳ期患者分别有3例(4.2%)、10例(13.9%)、47例(65.3%)和12例(16.7%),非吻合口组分别为16例(20.8%)、40例(51.9%)、15例(19.5%)和6例(7.8%),χ2= 45.294,P= 0.000],组织分型和Borrmann分型更差[吻合口组分化良好和不良者分别为19例(26.4%)和53例(73.6%),非吻合口组分别为43例(55.8%)和34例(44.2%),χ2= 13.287 ,P= 0.000;吻合口组BorrmannⅠ、Ⅱ、Ⅲ和Ⅳ型者分别有3例(4.2%)、17例(23.6%)、47例(65.3%)和5例(6.9%),非吻合口组分别为18例(23.4%)、16例(20.8%)、34例(50.6%)和4例(5.2%),χ2= 11.445,P= 0.010]。与非吻合口组相比,吻合口组根治切除率较低[63.9% (46/72)比89.6% (69/77),χ2= 13.977,P= 0.000],联合器官切除率较高[33.3%(24/72)比16.9%(13/77),χ2= 5.394,P= 0.020],转移淋巴结数目更多[(4.3 ± 4.9)枚比(1.9 ± 3.6)枚,t= 3.478,P= 0.000],其中No.4、No.10和空肠系膜根部淋巴结转移率吻合口组和非吻合口组分别为15.3%(11/72)比5.2%(4/77)(χ2= 4.178,P= 0.041)、9.7% (7/72)比1.3%(1/77)(χ2= 5.196,P= 0.023)和25.0%(18/72)比3.9%(3/77)(χ2= 13.687,P= 0.000)。全组患者术后中位随访时间37 (2~ 154)月,5年生存率为44.1%,其中吻合口组和非吻合口组分别为33.1%和55.2%,差异有统计学意义(P= 0.015)。按照肿瘤分化程度进行分层分析,在分化良好型中,两组5年生存率的差异无统计学意义(43.7%比56.2%,P= 0.872);而在分化不良型中,吻合口组5年生存率明显低于非吻合口组(29.8%比53.8%,P= 0.029)。结论 位于吻合口的残胃癌,分化相对较差,淋巴结转移率较高,根治切除率较低,整体预后较差。 Objective To evaluate the clinicopathologic characteristics and prognostic difference of gastric stump cancer between non-anastomotic site and anastomotic site.Methods Clinicopathologic data of 149 patients with gastric stump cancer undergoing operation (radical resection and palliative resection) in our department from January 1999 to June 2015 were analyzed retrospectively. Gastric stump cancer was defined as a primary carcinoma detected in the remnant stomach more than 5 years after subtotal gastrectomy for a benign disease (87 cases) or over 10 years after radical subtotal gastrectomy for a malignant disease (62 cases). Patients were divided into the anastomotic site group (72 cases) and the non-anastomotic site group (77 cases) according to tumor sites within the remnant stomach. Clinicopathologic characteristics, operative data, lymph node metastasis and prognosis were compared between the two groups.Results Compared with non-anastomotic site group, the T stage, N stage and TNM stage were later in the anastomotic site group. Number of case of T1, T2, T3, and T4 stage in anastomotic site group was 1 (1.4%) , 2 (2.8%) , 17 (23.6%) and 52 (72.2%) , while such number in non-anastomotic site group was 8 (10.4% ) , 10 (13.0%) , 27 (35.1%) and 32 (41.6%) respectively (χ2= 17.665, P= 0.001). Number of case of N0, N1, N2, and N3 in anastomotic site group was 28 (38.9%) , 10 (13.9%) , 23 (31.9%) and 11 (15.3%) , while such number in non-anastomotic site group was 55 (71.4%) , 10 (13.0%) , 7 (9.1%) and 5 (6.5%) respectively (χ2 = 19.421, P = 0.000). Number of case of stage Ⅰ, Ⅱ, Ⅲ and Ⅳ in anastomotic site group was 3 (4.2%) , 10 (13.9%) , 47 (65.3%) and 12 (16.7%) , while such number in non-anastomotic site group was 16 (20.8%) , 40 (51.9%) , 15 (19.5%) and 6 (7.8%) respectively (χ2= 45.294, P= 0.000). The histology and Borrmann classification were worse in anastomotic site group. Anastomotic site group had 19 cases (26.4%) of good differentiation and 53 cases (73.6%) of bad differentiation, while non-anastomotic site group had 43 cases (55.8%) of well-differentiated and 34 cases (44.2%) of poorly-differentiated tumors respectively (χ2 = 13.287, P= 0.000). Anastomotic site group had 3 cases (4.2%) of Borrmann Ⅰ, 17 cases (23.6%) of Borrmann Ⅱ, 47 cases (65.3%) of Borrmann Ⅲ and 5 cases (6.9%) of Borrmann Ⅳ, while non-anastomotic site group had 18 cases (23.4%) of BorrmannⅠ, 16 cases (20.8%) of BorrmannⅡ, 34 cases (50.6% ) of Borrmann Ⅲ and 4 cases (5.2% ) of Borrmann Ⅳ respectively (χ2 = 11.445, P = 0.010). Compared with non-anastomotic site group, anastomotic site group had a lower curative resection rate [63.9% (46/72) vs. 89.6% (69/77) , χ2 = 13.977, P = 0.000] , a higher combined organ resection rate [33.3% (24/72) vs. 16.9% (13/77) , χ2= 5.394, P= 0.020] and a more metastatic lymph nodes (4.3 ± 4.9 vs. 1.9 ± 3.6, t = 3.478, P= 0.000). The lymph node metastasis rates of No.4, No.10 and jejunal mesentery root lymph node in anastomotic site group and non-anastomotic site group were 15.3% (11/72) and 5.2% (4/77) (χ2= 4.178, P= 0.041) , 9.7% (7/72) and 1.3% (1/77) (χ2= 5.196, P= 0.023) , and 25.0% (18/72) and 3.9% (3/77) (χ2 = 13.687, P= 0.000) , respectively. Median followed up of all the patients was 37 (2 to 154) months and the overall 5-year survival rate was 44.1%. The 5-year survival rate was 33.1% in anastomotic site group and 55.2% in non-anastomotic site group, and the difference was statistically significant between two groups (P = 0.015). In the subgroup analysis according to the histology differentiation, the 5-year survival rate of patients with well-differentiation was not significantly different between two groups (43.7% vs. 56.2% , P = 0.872) , but the 5-year survival rate of patients with bad differentiation in anastomotic site group was significantly lower than that in non-anastomotic site group (29.8% vs. 53.8%, P = 0.029).Conclusion Gastric stump cancer locating in anastomotic site indicates worse differentiation histology, higher lymph node metastasis rate, lower curative resection rate and poorer prognosis.
出处 《中华胃肠外科杂志》 CAS CSCD 北大核心 2017年第1期67-72,共6页 Chinese Journal of Gastrointestinal Surgery
基金 福建省科技厅自然科学基金项目(2016J01436) 卫计委国家临床重点专科建设资助项目(卫办医政函[2012]649号) 福建省卫生计生委青年科研课题(2014-2-8)
关键词 残胃癌 肿瘤部位 淋巴结转移 预后 Gastric stump cancer Tumor location Lymph node metastasis Prognosis
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