
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Lower gastrointestinal bleeding risk factors
Introduction
Overview
Overview
Common risk factors in the development of lower GI bleeding include advancing age, previous history of gastrointestinal bleeding, chronic constipation, hematologic disorders, medications such as anticoagulants, non-steroidal anti-inflammatory drugs, and human immunodeficiency virus infection.
Risk Factors
Risk Factors
Common risk factors in the development of lower GI bleeding include:[1][2][3][4]
- Advancing age
- Previous history of gastrointestinal bleed
- Chronic constipation
- Hematologic disorders
- Anticoagulants
- Non-steroidal anti-inflammatory drugs
- Human immunodeficiency virus infection
| Risk factor | Pathophysiology of bleeding |
| Chronic constipation | Results in colonic diverticula and predispose patients to anal fissures and hemorrhoid formation |
| Hematologic disorders | Deficiencies in clotting factors, such as factor VII and factor VIII, predispose to LGIB |
| Anticoagulants | Patients taking warfarin, heparin, aspirin, and platelet inhibitors are at increased risk of bleeding in general |
| Nonsteroidal anti-inflammatory drugs | NSAIDs cause ulceration in the terminal ileum and proximal colon, and can exacerbate IBD |
| Human immunodeficiency virus | In patients with HIV, bleeding is caused by opportunistic infections, cytomegalovirus colitis, Kaposi sarcoma, or lymphoma |
References
References
- ↑ Navuluri R, Kang L, Patel J, Van Ha T (2012). “Acute lower gastrointestinal bleeding”. Semin Intervent Radiol. 29 (3): 178–86. doi:10.1055/s-0032-1326926. PMC 3577586. PMID 23997409.
- ↑ Strate LL (2005). “Lower GI bleeding: epidemiology and diagnosis”. Gastroenterol. Clin. North Am. 34 (4): 643–64. doi:10.1016/j.gtc.2005.08.007. PMID 16303575.
- ↑ RÃos A, Montoya MJ, RodrÃguez JM, Serrano A, Molina J, RamÃrez P, Parrilla P (2007). “Severe acute lower gastrointestinal bleeding: risk factors for morbidity and mortality”. Langenbecks Arch Surg. 392 (2): 165–71. doi:10.1007/s00423-006-0117-6. PMID 17131153.
- ↑ Strate LL, Orav EJ, Syngal S (2003). “Early predictors of severity in acute lower intestinal tract bleeding”. Arch. Intern. Med. 163 (7): 838–43. doi:10.1001/archinte.163.7.838. PMID 12695275.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Â ; Associate Editor(s)-in-Chief: Aditya Ganti M.B.B.S. [2]
