The Role of Transcatheter Arterial Embolization in the Management of Nonvariceal Upper Gastrointestinal Bleeding
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Published on: October 18, 2024
Dan E Orron1, Allan I Bloom2, Ziv Neeman3
1Department of Radiology, Carmel Medical Center, Michal Street, Haifa 34362, Israel.
Insights
Catheter angiography, a minimally invasive technique, is crucial for diagnosing and treating nonvariceal upper gastrointestinal bleeding. Advances in microcatheter technology enable precise embolization for effective patient outcomes.
Area of Science:
- Interventional Radiology
- Gastroenterology
Background:
- Catheter angiography has been a cornerstone for diagnosing and treating nonvariceal upper gastrointestinal bleeding for nearly five decades.
- Technological innovations have led to the development of microcatheters, enhancing procedural precision.
Purpose of the Study:
- To review the diagnostic and therapeutic applications of angiography in nonvariceal upper gastrointestinal bleeding.
- To discuss the angiographic findings associated with various bleeding etiologies.
- To outline the selection criteria for embolic agents and expected outcomes of embolization.
Main Methods:
- Review of diagnostic and therapeutic angiography techniques.
- Analysis of angiographic appearances of different nonvariceal upper gastrointestinal bleeding causes.
- Evaluation of embolic agent selection and transcatheter arterial embolization outcomes.
Main Results:
- Microcatheters allow selective catheterization of third-order arterial branches.
- A wide range of embolic agents can be delivered with precision.
- Angiography provides characteristic appearances for various bleeding etiologies.
Conclusions:
- Transcatheter arterial embolization is an effective treatment for nonvariceal upper gastrointestinal bleeding.
- Case-specific selection of embolic agents influences treatment success.
- Continued technological advancements improve diagnostic and therapeutic angiography capabilities.
Abstract:
Nearly 50 years ago, catheter angiography was introduced as a means of both diagnosing and treating nonvariceal upper gastrointestinal bleeding. Technological advances and innovations have resulted in the introduction of microcatheters that, using a coaxial technique, are capable of selecting third-order arterial branches and of delivering a wide array of embolic agents. This article reviews the imaging diagnosis of nonvariceal upper gastrointestinal bleeding, the techniques of diagnostic and therapeutic angiography, the angiographic appearance of the various etiologies of nonvariceal upper gastrointestinal bleeding, the rationale behind case-specific selection of embolic agents as well as the anticipated outcome of transcatheter arterial embolization.
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