[Internal Hernia Following Laparoscopic Roux-Y Gastric Bypass - a Challenge not only for the General Surgeon]

Area of Science:

• Gastroenterology
• Surgical Oncology
• Abdominal Surgery

Background:

• Bariatric operations, particularly laparoscopic Roux-Y gastric bypass, are increasingly common.
• Late complications, such as internal hernias, can occur months or years post-surgery.
• These hernias pose a diagnostic challenge for general surgeons.

Purpose of the Study:

• To highlight the occurrence and diagnostic challenges of internal hernias post-bariatric surgery.
• To emphasize the importance of prompt diagnosis and surgical intervention.
• To describe the diagnostic and surgical approach for internal hernias in bariatric patients.

Main Methods:

• Review of clinical presentations of internal hernias following Roux-Y gastric bypass.
• Diagnostic imaging using contrast-enhanced computed tomography (CT) of the abdomen.
• Diagnostic laparoscopy performed by experienced bariatric surgeons.

Main Results:

• Internal hernias, particularly Petersen hernias, can develop in mesenteric spaces created during Roux-Y gastric bypass.
• Clinical symptoms are often unspecific, including abdominal pain, nausea, and vomiting.
• CT scans are valuable, but unremarkable scans do not exclude internal hernias; laparoscopy is definitive.

Conclusions:

• Internal hernias are a significant late complication of Roux-Y gastric bypass.
• A high index of suspicion and prompt diagnostic laparoscopy are essential for accurate diagnosis.
• Surgical closure of hernial spaces with non-absorbable sutures is the recommended treatment.