Related Experiment Videos
Vascular ectasias and diverticulosis. Common causes of lower intestinal bleeding
1Department of Medicine, Montefiore Medical Center, Bronx, New York.
Insights
Lower intestinal bleeding, often from colonic diverticula or vascular ectasias, usually stops on its own. A conservative treatment approach is recommended, with surgery reserved for severe, recurrent cases.
Area of Science:
- Gastroenterology
- Colorectal Surgery
Background:
- Lower intestinal bleeding is a common cause of hospitalization in the US.
- Colonic diverticula and vascular ectasias are the most frequent sources of this bleeding.
- Diagnosing the exact source can be challenging due to asymptomatic diverticula and difficult-to-detect ectasias.
Purpose of the Study:
- To review the common causes of lower intestinal bleeding.
- To recommend a therapeutic approach for managing lower intestinal bleeding.
- To define surgical indications and extent for refractory cases.
Main Methods:
- Literature review of causes and management of lower intestinal bleeding.
- Analysis of diagnostic challenges in identifying bleeding sources.
- Evaluation of treatment outcomes for conservative and surgical interventions.
Main Results:
- Bleeding from diverticula and ectasias frequently ceases spontaneously.
- Conservative management is often effective for lower intestinal bleeding.
- Right hemicolectomy is indicated for recurrent hemorrhage when the source remains unidentified.
Conclusions:
- A conservative management strategy is recommended for most cases of lower intestinal bleeding.
- Surgical intervention should be considered only for persistent or recurrent bleeding after thorough evaluation.
- The presence of left-sided diverticulosis does not influence the extent of right hemicolectomy when indicated.
Abstract:
Lower intestinal bleeding is an important medical problem frequently responsible for hospital admission in the United States. The two most common causes of this type of bleeding are colonic diverticula and vascular ectasias. Because ectasias are difficult to diagnose and because many older individuals have asymptomatic diverticula, it is often impossible to be certain that one of these lesions is the source of blood loss in a given patient. Fortunately, bleeding from an ectasia or a diverticulum usually stops spontaneously. A conservative approach to therapy, therefore, is strongly recommended. Should a careful evaluation fail to reveal the source of bleeding and treatment become necessary because of recurrent hemorrhage, the patient should undergo an elective right hemicolectomy. The extent of resection is not altered by the presence of diverticulosis in the left colon.