ArticleBMC surgery2025
Efficacy of intraperitoneal positive pressure gas expulsion in laparoscopic transabdominal preperitoneal hernioplasty: a retrospective cohort study.
Article in BMC surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Beyond acronyms: a domain-based structural analysis of abdominal wall hernia repair techniques in the contemporary literature.Surgical endoscopy · 2026Article
- Study on the application of modified intraoperative gas evacuation combined with perioperative pressure and cold compress in TAPP repair of inguinal hernias.Hernia : the journal of hernias and abdominal wall surgery · 2026Observational
- How Reproducible Are Abdominal Wall Surgical Techniques? A Methodological Assessment of Technical Reporting in the Contemporary Literature.Journal of abdominal wall surgery : JAWS · 2026Article
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2 authors.
Funding
Abstract
objectiveTo investigate the effects of the pneumoperitoneum positive-pressure exhaust technique on mesh fixation and postoperative recovery in laparoscopic transabdominal preperitoneal prosthetic (TAPP) hernia repair.
methodsA retrospective cohort analysis was conducted on 655 patients who underwent TAPP between January 2019 and December 2023. Patients were divided into a direct suture group (n=304) and a positive-pressure exhaust group (n=351) on the basis of preperitoneal space management. In the exhaust group, a 20G needle or drainage tube was placed percutaneously before peritoneal closure. After suturing, 12 mmHg pneumoperitoneum pressure was maintained to evacuate residual gas from the preperitoneal space through the externalized needle/tube. The primary outcomes included postoperative complications (bleeding, mesh infection, seroma, reoperation) and hospitalization duration.
resultsBaseline characteristics were not significantly different (P>0.05). Although not statistically significant, there were clinically meaningful differences between the groups; the exhaust group had lower seroma (11.97% vs. 16.78%, P=0.079) and mesh infection (0.28% vs. 1.32%, P=0.189) incidence rates than the direct suture group did. The exhaust group had a significantly shorter hospital stay than the direct suture group (median 7 vs. 7 days, P=0.013) and had a 0% recurrence rate at the 1-year follow-up (vs. 1.32% for the direct suture group).
conclusionThe positive-pressure exhaust technique facilitates mesh fixation by eliminating dead space through improved tissue apposition. This simple, cost-effective approach may reduce the risk of recurrence, although larger prospective studies are needed to validate its long-term efficacy.
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