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中华疝和腹壁外科杂志(电子版) ›› 2026, Vol. 20 ›› Issue (04) : 379 -385. doi: 10.3877/cma.j.issn.1674-392X.2026.04.005

论著

基于倾向得分匹配法研究内脏脂肪面积与结直肠癌术后切口疝的相关性
陈嘉林1, 余绍辉1, 李如春1, 周太成2,()   
  1. 1525200 广东省茂名市农垦医院外二科
    2510655 广州,中山大学附属第六医院疝和腹壁外科
  • 收稿日期:2026-01-28 出版日期:2026-08-18
  • 通信作者: 周太成
  • 基金资助:
    国家自然科学基金青年科学基金项目(C类)(82500609); 省企联合基金-面上项目(2025A1515220139)

Research on the correlation between visceral fat area and postoperative incisional hernia of colorectal cancer based on the propensity score matching method

Jialin Chen1, Shaohui Yu1, Ruchun Li1, Taicheng Zhou2,()   

  1. 1Department of General SurgeryⅡ, Maoming Agricultural Reclamation Hospital, Maoming 525200, Guangdong Province, China;
    2Department of Hernia and Abdominal Wall Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, Guangdong Province, China.
  • Received:2026-01-28 Published:2026-08-18
  • Corresponding author: Taicheng Zhou
引用本文:

陈嘉林, 余绍辉, 李如春, 周太成. 基于倾向得分匹配法研究内脏脂肪面积与结直肠癌术后切口疝的相关性[J/OL]. 中华疝和腹壁外科杂志(电子版), 2026, 20(04): 379-385.

Jialin Chen, Shaohui Yu, Ruchun Li, Taicheng Zhou. Research on the correlation between visceral fat area and postoperative incisional hernia of colorectal cancer based on the propensity score matching method[J/OL]. Chinese Journal of Hernia and Abdominal Wall Surgery(Electronic Edition), 2026, 20(04): 379-385.

目的

探讨内脏脂肪面积(VFA)与结直肠癌术后切口疝发生的相关性。

方法

回顾性分析2020年期间,于中山大学附属第六医院行腹腔镜下结直肠癌根治手术的246例患者临床资料,以是否发生切口疝为分组变量,多因素分析研究切口疝发生的危险因素。根据VFA把患者分为高脂肪组(VFA≥130 cm2)和低脂肪组(VFA<130 cm2),采用倾向得分匹配法(PSM),以年龄、性别、体重指数、术前辅助化疗、术后切口感染、是否患有糖尿病、是否患有心血管疾病这七项指标作为协变量进行1∶1匹配,匹配容差设置为0.02,最终49对患者匹配成功,比较两组切口疝的发生率。

结果

多因素分析显示,切口感染(OR=15.807,95% CI 3.372~74.095,P<0.001)与VFA≥130 cm2OR=2.487,95% CI 1.249~4.951,P=0.010)是切口疝发生的独立危险因素。PSM匹配后,两组基线资料均衡可比(P>0.05),高脂肪组切口疝发生率(46.9%)显著高于低脂肪组(22.4%),差异有统计学意义(OR=3.06,P=0.01)。

结论

VFA≥130 cm2是结直肠癌术后切口疝发生的重要危险因素,对该类患者预防性使用补片可能会降低切口疝风险。

Objective

To explore the correlation between visceral fat area(VFA) and the occurrence of incisional hernia after colorectal cancer surgery.

Methods

A retrospective analysis was conducted on the clinical data of 246 patients who underwent laparoscopic radical resection for colorectal cancer in the Sixth Affiliated Hospital of Sun Yat-sen University in 2020. Patients were divided into groups according to the occurrence of incisional hernia, and multivariate analysis was performed to identify the risk factors for incisional hernia. According to VFA, patients were classified into the high-fat group (VFA≥130 cm2) and the low-fat group (VFA<130 cm2). Propensity score matching (PSM) method was adopted with a 1:1 matching ratio, using seven indicators including age, gender, body mass index, preoperative neoadjuvant chemotherapy, postoperative surgical site infection, diabetes mellitus, and cardiovascular disease as covariates, and the matching tolerance was set at 0.02. Eventually, 49 pairs of patients were successfully matched, and the incidence of incisional hernia was compared between the two groups.

Results

Multivariate analysis showed that incision infection (OR=15.807, 95% CI 3.372-74.095, P<0.001) and VFA≥130 cm2 (OR=2.487, 95% CI 1.249-4.951, P=0.010) were independent risk factors for incisional hernia. After PSM, the baseline data of the two groups were balanced and comparable (P>0.05). The incidence of incisional hernia in the high-fat group (46.9%) was significantly higher than that in the low-fat group (22.4%), with a statistically significant difference (OR=3.06, P=0.01).

Conclusion

VFA≥ 130 cm2 is an important risk factor for incisional hernia after colorectal cancer surgery. Prophylactic mesh placement may reduce the risk of incisional hernia in such patients.

图1 多层螺旋CT测量L4层面的腹腔脂肪面积注:黄色区域代表皮下脂肪,绿色区域代表内脏脂肪。
表1 2组腹腔镜结直肠癌根治手术后患者的一般资料比较
表2 腹腔镜结直肠癌根治手术后切口疝危险因素的logistic回归分析结果
表3 2组腹腔镜结直肠癌根治手术后患者内脏脂肪面积及切口疝发生情况比较
图2 倾向得分匹配前后协变量标准化均数差(SMD)的密度分布图 2A匹配前;2B匹配后注:匹配前高脂肪组118例,低脂肪组128例,共49对患者匹配成功。
表4 倾向得分匹配前及匹配后2组腹腔镜结直肠癌根治手术后患者基线资料比较
表5 倾向得分匹配后Rosenbaum边界敏感性分析结果
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