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Heavyweight versus non-heavyweight mesh in ventral hernia repair: a systematic review and meta-analysis

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Abstract

Purpose

There is considerable variability among surgeons regarding the type of mesh used in ventral hernia repair. There has been an increasing incidence of mesh fractures with lightweight (LW) and mediumweight (MW) meshes. However, HW mesh has been associated with a greater foreign body sensation and chronic pain. This meta-analysis aims to compare the outcomes of HW and non-heavyweight (NHW) meshes in ventral hernia repair.

Methods

We systematically reviewed the PubMed, Embase, Cochrane, and Scopus databases to identify studies comparing HW with NHW meshes in hernia repair. Outcomes analyzed included hernia recurrence, seroma, hematoma, foreign body sensation, postoperative pain, and wound infection. We performed two subgroup analyses focusing on randomized controlled trials and open retromuscular repairs. Statistical analysis was performed using RevMan 5.4.

Results

We screened 1704 studies. Nine studies were finally included in this meta-analysis and comprised 3001 patients from 4 RCTs and 5 non-randomized. The majority of patients (57.1%) underwent open retromuscular repair. HW mesh was significantly associated with increased in foreign body sensation (OR 3.71; 95% CI 1.40–9.84; p = 0.008), but there was no difference in other outcomes. In RCTs analysis, there was no difference between meshes. In open retromuscular repairs, HW mesh was associated with more seromas (OR 1.48; 95% CI 1.01–2.17; p = 0.05).

Conclusion

Our study found that HW mesh was associated with more foreign body sensation. Also, open retromuscular repairs analysis showed that HW was associated with more seromas. Further randomized studies are needed to understand better the role of HW mesh in ventral hernia repair.

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Data availability

The data extracted from individual studies included in this meta-analysis can be obtained from their respective original sources. A list of the studies along with their citations is provided in the references section of this article. Supplementary materials accompanying this article contain additional information about the bias assessment.

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Correspondence to Bruna Oliveira Trindade.

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Conflict of interest

Dr. Richard Lu received payment/honoraria for lectures and presentations from Intuitive Surgical that are unrelated to this work. Bruna Oliveira Trindade, Patrícia Marcolin, Gabriela Rangel Brandão, Sarah Bueno Motter, Sérgio Mazzola Poli de Figueiredo, and Rui-Min Diana Mao declare that they have no conflict of interest.

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Oliveira Trindade, B., Marcolin, P., Brandao, G. et al. Heavyweight versus non-heavyweight mesh in ventral hernia repair: a systematic review and meta-analysis. Hernia 28, 291–300 (2024). https://doi.org/10.1007/s10029-023-02865-1

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