Selective muscle botulinum toxin A component paralysis in complex ventral hernia repair

Area of Science:

• Abdominal Wall Surgery
• Minimally Invasive Procedures
• Hernia Repair

Background:

• Complex ventral hernia repair is challenging due to high morbidity and recurrence rates.
• Preoperative Botulinum Toxin A (BTA) aids hernia closure but risks transversus abdominis paralysis.
• Transversus abdominis is vital for truncal stability.

Purpose of the Study:

• To evaluate the efficacy of selective BTA injection sparing transversus abdominis.
• To compare this selective technique with standard BTA injection for ventral hernia repair.

Main Methods:

• Prospective observational study of 46 patients undergoing laparoscopic ventral hernia repair.
• Patients received either selective (internal/external obliques) or standard (all three layers) BTA injection.
• Abdominal CT imaging assessed defect size and musculature.

Main Results:

• No statistically significant difference in defect closure or muscle response between groups.
• Successful fascial closure in all patients, with no abdominal hypertension.
• Zero hernia recurrences observed to date.

Conclusions:

• Selective preoperative BTA injection is effective for complex ventral hernias.
• Sparing transversus abdominis preserves physiological function without compromising closure.
• This technique offers a safe alternative for ventral hernia repair.