What is the ideal Body Mass Index (BMI) before undergoing umbilical hernia repair surgery?

From the Research

The ideal Body Mass Index (BMI) before undergoing umbilical hernia repair surgery is generally below 30, with a BMI between 18.5 and 25 being optimal. This recommendation is based on the most recent and highest quality study available, which suggests that obesity increases surgical risks, including wound complications, infection, recurrence of the hernia, and anesthesia-related complications 1.

Key Considerations

• A lower BMI makes the technical aspects of the surgery easier, allowing for better visualization and repair of the hernia defect.
• Excess abdominal fat puts additional pressure on the surgical site, potentially compromising wound healing and increasing the risk of hernia recurrence.
• Weight loss of even 5-10% of body weight can significantly improve surgical outcomes.

Evidence-Based Recommendations

• Surgeons typically recommend achieving a BMI as close to the normal range as possible before proceeding with surgery 2.
• If BMI is above 30, losing weight before the procedure is advised, as obesity increases surgical risks 3.
• A balanced diet and regular exercise, in consultation with a healthcare provider, can help achieve the desired weight loss 4.

Clinical Implications

• The control of ascites is critical to a successful outcome in patients with cirrhosis and ascites undergoing umbilical hernia repair 5.
• Early repair of umbilical hernias in patients with cirrhosis and ascites may be safer than previously thought, and can be considered for selected patients 5.