Management of incidentally discovered unaffected Meckel's diverticulum - a review

Area of Science:

• Gastroenterology
• Surgical Pathology
• Congenital Malformations

Background:

• Meckel's diverticulum is the most common congenital gastrointestinal malformation, affecting 1-4% of the population.
• While often asymptomatic, it can lead to serious complications like obstruction, bleeding, and inflammation.
• Current literature lacks definitive guidelines for managing incidentally discovered, uncomplicated Meckel's diverticulum.

Purpose of the Study:

• To review existing literature on incidentally found Meckel's diverticulum.
• To identify criteria for preventive resection versus conservative management.
• To establish current knowledge on the management of asymptomatic Meckel's diverticulum.

Main Methods:

• Systematic literature review of 17 relevant papers.
• Analysis of identified risk factors associated with Meckel's diverticulum complications.
• Synthesis of evidence to formulate management recommendations.

Main Results:

• Key risk factors for preventive resection include age <50 years, male gender, diverticulum length >2 cm, macroscopic abnormalities (e.g., ectopic gastric mucosa), and narrow neck.
• When these criteria are absent, the lifetime risk of complications is minimal.
• Conservative management is recommended for patients with peritonitis, major abdominal trauma, or advanced age.

Conclusions:

• Management decisions for incidental Meckel's diverticulum should be individualized based on identified risk factors.
• Preventive resection is indicated when specific risk factors are present.
• Conservative management is appropriate when risk factors are absent, balancing minimal complication risk against surgical morbidity.