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Lower GI Bleeding: An Update on Incidences and Causes
Titilayo Adegboyega1, David Rivadeneira1
1Department of Surgery, Donald and Barbara Zucker School of Medicine Hofstra University, Northwell Health System, New York.
Insights
Lower gastrointestinal bleeding (LGIB) is a major cause of illness and death, often originating in the colon. Key causes include diverticulosis, vascular malformations, and cancer.
Area of Science:
- Gastroenterology
- Colorectal Surgery
Background:
- Lower gastrointestinal bleeding (LGIB) is a significant clinical challenge, contributing to substantial patient morbidity and mortality.
- While bleeding can occur throughout the digestive tract, the colon is the most frequent site, with the small intestine accounting for a smaller proportion of cases.
Purpose of the Study:
- To review the incidence and primary etiologies of lower gastrointestinal bleeding.
- To provide an overview of common causes such as diverticulosis, vascular malformations, and malignancy.
Main Methods:
- Literature review and synthesis of existing data on LGIB.
- Analysis of reported incidence rates and causative factors for colorectal and small intestinal bleeding.
Main Results:
- Diverticulosis is a leading cause of LGIB, followed by vascular malformations and gastrointestinal cancers.
- The colon accounts for the vast majority of LGIB cases, underscoring its clinical importance.
Conclusions:
- Understanding the common causes of LGIB is crucial for effective diagnosis and management.
- Prompt identification of etiologies like diverticulosis, vascular anomalies, and tumors can improve patient outcomes and reduce mortality.
Abstract:
Bleeding from the lower gastrointestinal tract represents a significant source of morbidity and mortality. The colon represents the vast majority of the location of bleeding with only a much smaller incidence occurring in the small intestine. The major causes of lower gastrointestinal bleeding (LGIB) are from diverticulosis, vascular malformations, and cancer. We discuss the incidence and causes of LGIB.
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