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Published on: September 11, 2021
Postoperative hiatal herniation after open vs. minimally invasive esophagectomy; a systematic review and
Himam Murad1, Biying Huang1, Nelson Ndegwa2
1Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.
Background:
Post-esophagectomy hiatal hernia (PEHH) is a known, but relatively uncommon, complication after esophagectomies. The incidence of PEHH seems to be increasing since the introduction of minimally invasive esophagectomy. This systematic review and meta-analysis aimed to determine the pooled incidence of PEHH after esophagectomy, and to evaluate if minimally invasive technique is associated with increased risk for PEHH compared to open esophagectomy.
Methods:
A systematic search of PubMed, Medline via Ovid and Web of Science was performed. Retrospective and prospective studies in English language describing the incidence or risk factors for PEHH were included. Weighted incidence of PEHH after all types of esophagectomy, and after open or minimally invasive technique was calculated.
Results:
A total of 7943 esophagectomy patients were included in the analysis. In total, 310 patients (3.9%) were diagnosed with PEHH. The estimated weighted incidence rate for PEHH after open esophagectomy was 0.024 (95% confidence interval: 0.012-0.045) compared to 0.065 (95% confidence interval: 0.040-0.106) after minimally invasive esophagectomy. Odds ratio for PEHH after minimally invasive esophagectomy compared to open esophagectomy was 2.76 (95% confidence interval: 1.49-5.11).
Conclusion:
The risk for post-esophagectomy hiatal hernia was significantly higher after minimally invasive esophagectomy compared to open technique. Heterogeneity and retrospective designs of the included studies were important limitations of the analysis. Future studies should investigate preventive measures to reduce PEHH after minimally invasive esophagectomy.
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