LI Haochi 1,2 , ZHANG Jinlong 1,2 , CAO Wei 1,2 , MIN Weirun 1,2 , LIN Zhaohao 1,2 , DONG Xinchun 2 , GOU Yunjiu 2
  • 1. First Clinical Medical School, Gansu University of Chinese Medicine, Lanzhou, 730000, P. R. China;
  • 2. First Department of Thoracic Surgery, Gansu Provincial Hospital, Lanzhou, 730000, P. R. China;
DONG Xinchun, Email: 3050319523@qq.com; GOU Yunjiu, Email: gouyunjiu@163.com
Minimally invasive esophagectomy; intrathoracic anastomotic leakage; mediastinal drainage tube; systematic review/meta-analysis
10.7507/1007-4848.202403057
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Objective To explore the effect of mediastinal drainage tube placed after the esophageal cancer resection with intrathoracic anastomosis on postoperative complications such as anastomotic fistula. Methods Literature on the application of mediastinal drainage tubes in esophageal cancer surgery published in databases such as PubMed, EMbase, CNKI, China Biomedical Literature Database, VIP, and Wanfang were searched using English or Chinese, from the establishment of the databases to December 31, 2023. The Newcastle-Ottawa Scale (NOS) was used to evaluate the quality of the included retrospective studies, the Cochrane Handbook bias risk tool was used to assess the bias risk of randomized controlled trials (RCT), and Review Manager 5.4 software was used for meta-analysis. Results A total of 19 retrospective studies and 8 RCT involving 6320 patients were included, with 3257 patients in the observation group (mediastinal drainage tube+closed thoracic drainage tube) and 3063 patients in the control group (closed thoracic drainage tube or single mediastinal drainage tube). The NOS score of the included literature was≥6 points, and one RCT had a low risk of bias and the other RCT had a moderate risk of bias . Meta-analysis results showed that compared with the control group, the observation group had fewer postoperative lung complications [OR=0.44, 95%CI (0.36, 0.53), P<0.001], fewer postoperative cardiac complications [OR=0.40, 95%CI (0.33, 0.49), P<0.001], earlier average diagnosis time of anastomotic fistula [MD=−3.33, 95%CI (−3.95, −2.71), P<0.001], lower inflammation indicators [body temperature: MD=−1.15, 95%CI (−1.36, −0.93), P<0.001; white cell count: MD=−5.62, 95%CI (−7.29, −3.96), P<0.001], and shorter postoperative hospital stay [MD=−15.13, 95%CI (−18.69, −11.56), P<0.001]. However, there was no statistically significant difference in the incidence of postoperative anastomotic fistula between the two groups [OR=0.85, 95%CI (0.70, 1.05), P=0.13]. Conclusion Placing a mediastinal drainage tube cannot reduce the incidence of anastomotic fistula, but it can effectively reduce the incidence of postoperative respiratory and circulatory system complications in patients and improve patients’ prognosis. It can early detect teh anastomotic fistula and fully drain digestive fluid to promote rapid healing of the fistula, alleviate the infection symptoms of postoperative anastomotic fistula, and shorten the hospital stay.