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emDOCs.net Emergency Medicine (EM) Podcast
Episode 96: Lower GI Bleeding
Mar 6, 2024
Topics covered in the podcast include the causes and distinction of lower GI bleeding from upper GI bleeding, the role of CTA in evaluation, management strategies such as transfusion thresholds and reversal agents, and the importance of timely imaging and resuscitation for unstable patients.
16:18
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Quick takeaways
- Lower GI bleeding often resolves without intervention, but up to 40% may re-bleed within a year requiring transfusions.
- Distinguishing lower from upper GI bleeds is crucial, with factors like history of lower GI bleeding and blood clots per rectum indicating lower GI origin.
Deep dives
Understanding Lower Gastrointestinal Bleeding
Lower gastrointestinal bleeding, which occurs distal to the ligament of trites, is a prevalent condition with over 110,000 admissions and 270,000 ED visits annually in the US. Etiologies include anatomic, vascular, inflammatory, and neoplastic causes. While most cases resolve without intervention, up to 40% may experience re-bleeding within a year, necessitating transfusions in about a quarter of patients.
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