Hiatal Hernia Repair: Can We Predict the Need for Mesh?

Area of Science:

• Gastroenterology
• Surgical Oncology
• Radiology

Background:

• Mesh use in paraesophageal hernia repair is debated due to potential long-term complications.
• Predicting the need for mesh during surgery remains a challenge.

Purpose of the Study:

• To determine if preoperative imaging characteristics of diaphragmatic hernias can predict the necessity of mesh repair.
• To identify imaging biomarkers for optimizing surgical planning in hiatal hernia repair.

Main Methods:

• Retrospective review of 53 patients undergoing laparoscopic diaphragmatic hernia repair (Sept 2015-Sept 2022).
• Analysis of preoperative computerized tomography (CT) scans, including volumetric measurements of hiatal defect area (HDA) and hernia sac volume (HSV).
• Correlation of imaging findings with intraoperative mesh repair decisions.

Main Results:

• Mesh repair was required in 43.4% of cases, exclusively in types II-IV hernias.
• Patients requiring mesh exhibited significantly higher mean hernia sac volume (HSV) (708.53 cm³ vs. 346.87 cm³, P < .003).
• Higher mean hiatal neck height was also observed in the mesh repair group (50.8 mm vs. 43.22 mm, P < .032).

Conclusions:

• Preoperative hernia sac volume (HSV) measured on CT scans is a significant predictor for mesh use in hiatal hernia surgery.
• Utilizing HSV measurements can enhance preoperative surgical planning and decision-making for paraesophageal hernias.
• Further validation studies are recommended to refine the predictive accuracy of HSV and optimize surgical outcomes.