The management of lower gastrointestinal bleeding

Area of Science:

• Gastroenterology
• Interventional Radiology
• Surgical Oncology

Background:

• Lower gastrointestinal (LGI) bleeding is typically less severe than upper gastrointestinal (UGI) bleeding, with spontaneous cessation in 80% of cases and a 2-4% mortality rate.
• Unlike UGI bleeding, there is no established consensus on the management of LGI bleeding.

Purpose of the Study:

• To outline the diagnostic and therapeutic strategies for managing lower gastrointestinal bleeding.
• To emphasize the importance of precise bleeding localization for effective treatment.

Main Methods:

• First-line examinations include upper endoscopy and colonoscopy.
• Angiography is crucial for active bleeding, enabling localization and guiding therapy (embolization, interventional colonoscopy, or surgery).
• Video capsule enteroscopy and other small bowel imaging techniques (CT/MRI enteroclysis) aid in diagnosing small intestine bleeding.

Main Results:

• Angiography allows for diagnostic localization and guides subsequent therapeutic interventions.
• Minimally invasive techniques like video capsule enteroscopy are increasingly important for small bowel evaluation.
• Exploratory surgery is no longer considered a first-line approach.

Conclusions:

• Initial patient stabilization and transfer to a specialized center are recommended if advanced techniques are unavailable locally.
• The complexity of LGI bleeding necessitates multidisciplinary collaboration among gastroenterologists, radiologists, intensivists, and surgeons.
• Optimizing diagnosis and treatment requires a coordinated team approach to manage diverse LGI bleeding presentations.