Lower Recurrence Rates After Mesh-reinforced Versus Simple Hiatal Hernia Repair: A Meta-Analysis of Randomized Trials

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Abstract

Mesh hiatoplasty has been postulated to reduce recurrence rates, it is however prone to esophageal stricture, and early-term and mid-term dysphagia. The present meta-analysis was designed to compare the outcome between mesh-reinforced and primary hiatal hernia repair. The databases of Medline, EMBASE, and the Cochrane Library were searched; only randomized controlled trials entered the meta-analytical model. Anatomic recurrence documented by barium oesophagography was defined as the primary outcome endpoint. Three randomized controlled trials reporting the outcomes of 267 patients were identified. The follow-up period ranged between 6 and 12 months. The weighted mean recurrence rates after primary and mesh-reinforced hiatoplasty were 24.3% and 5.8%, respectively. Pooled analysis demonstrated increased risk of recurrence in primary hiatal closure (odds ratio, 4.2; 95% confidence interval, 1.8-9.5; P=0.001). Mesh-reinforced hiatal hernia repair is associated with an approximately 4-fold decreased risk of recurrence in comparison with simple repair. The long-term results of mesh-augmented hiatal closure remain to be investigated.

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