Background: Upper gastrointestinal bleeding (UGIB) remains a critical cause of emergency hospitalization globally. Despite advances in diagnostic and therapeutic strategies, UGIB continues to carry significant morbidity and mortality, influenced by etiology, comorbid conditions, and healthcare system factors. This review synthesizes current evidence on UGIB incidence, risk predictors, management strategies, and clinical outcomes.

Methods: A narrative review of contemporary literature was performed, emphasizing epidemiological trends, prognostic scoring systems, comorbidity influences, endoscopic and medical therapies, and outcome determinants. Key data sources included clinical registries, guideline recommendations, prospective cohort studies, and comparative analyses of risk stratification tools.

Results: Incidence of UGIB shows a decline over recent decades, attributed to Helicobacter pylori management and proton pump inhibitor use, while aging populations and antithrombotic medication use pose ongoing challenges [turn0search3] [turn0search14] [turn0search15]. Peptic ulcer disease and erosive lesions remain principal non‑variceal causes, with variceal bleeding significant among cirrhotic patients [turn0search20]. Risk stratification with validated tools (GBS, AIMS65, ABC, Rockall, PNED) guides clinical decisions on intervention urgency and disposition [turn0search9][turn0search8]. Comorbidities such as cardiovascular disease and chronic organ dysfunction substantially elevate mortality risk [4] [turn0search8].

Conclusion: Effective UGIB management integrates accurate early risk assessment, tailored resuscitation, timely endoscopic intervention, and longitudinal care addressing underlying disease. Emerging predictive models and evidence‑based practices aim to optimize outcomes; however, further research is needed to refine stratification tools and guideline implementation in diverse clinical settings.

upper gastrointestinal bleeding, risk stratification, epidemiology, non‑variceal bleeding, clinical outcomes, prognostic scores

1. Abougergi MS, Travis AC, Saltzman JR. The in‑hospital mortality rate for upper GI hemorrhage has decreased over 2 decades in the United States: a nationwide analysis. Gastrointest Endosc.2015;81:882–8.e1.

2. Leontiadis GI, Molloy‑Bland M, Moayyedi P, et al. Effect of comorbidity on mortality in patients with peptic ulcer bleeding: systematic review and meta‑analysis. Am J Gastroenterol.2013;108:331–45; quiz 346.

3. Sey MSL, Mohammed SB, Brahmania M, et al. Comparative outcomes in patients with ulcer‑ vs non‑ulcer‑related acute upper gastrointestinal bleeding in the United Kingdom: a nationwide cohort of 4474 patients. Aliment Pharmacol Ther.2019;49:537–45.

4. Monteiro S, Goncalves TC, Magalhaes J, et al. Upper gastrointestinal bleeding risk scores: who, when and why? World J Gastrointest Pathophysiol.2016;7:86–95.

5. Barkun AN, Almadi M, Kuipers EJ, Laine L, Sung J, Tse F, et al. Management of non variceal upper gastrointestinal bleeding: Guideline recommendations from the International Consensus Group. Ann Intern Med.2019;171(11):805–22.

6. Garcia‑Tsao G, Abraldes JG, Berzigotti A, Bosch J. Portal hypertensive bleeding in cirrhosis: Risk stratification, diagnosis, and management: 2016 Practice Guidance by the American Association for the Study of Liver Diseases. Hepatology.2017;65(1):310–35.

7. Wuerth BA, Rockey DC. Changing epidemiology of upper gastrointestinal hemorrhage in the last decade: a nationwide analysis. Dig Dis Sci.2018;63:1286–93.

8. Nahon S, Hagège H, Latrive JP, et al. Epidemiological and prognostic factors involved in upper gastrointestinal bleeding: results of a French prospective multicenter study. Endoscopy.2012;44:998–1008.

9. Tajiri T, Yoshida H, Obara K, et al. General rules for recording endoscopic findings of esophagogastric varices (2nd edition). Dig Endosc.2010;22:1–9.

10. Chiu PW, Ng EK. Predicting poor outcome from acute upper gastrointestinal hemorrhage. Gastroenterol Clin North Am.2009;38:215–30.

11. Sarin SK, Lahoti D, Saxena SP, et al. Prevalence, classification and natural history of gastric varices: a long‑term follow‑up study in 568 portal hypertension patients. Hepatology.1992;16:1343–9.

12. Tandon P, Bishay K, Fisher S, et al. Comparison of clinical outcomes between variceal and nonvariceal gastrointestinal bleeding in patients with cirrhosis. J Gastroenterol Hepatol.2018;33:1773–9.

13. Hearnshaw SA, Logan RFA, Lowe D, et al. Acute upper gastrointestinal bleeding in the UK: patient characteristics, diagnoses and outcomes in the 2007 UK audit. Gut.2011;60:1327–35.

14. Klebl F, Bregenzer N, Schöfer L, et al. Risk factors for mortality in severe upper gastrointestinal bleeding. Int J Colorectal Dis.2005;20:49–56.

15. Kim HY, Kim CW, Kim M, et al. Clinical outcomes and predictors of rebleeding in patients with upper gastrointestinal bleeding. World J Gastroenterol.2019;25(14):1611‑1620.

16. Laine L, Jensen DM. Management of patients with ulcer bleeding. Am J Gastroenterol.2020;115(6):882‑893.

17. Thompson C, Begum J, Rees CJ, et al. Use of endoscopic therapy for non‑variceal upper gastrointestinal bleeding: A UK‑wide audit. Frontline Gastroenterol.2018;9(3):165‑171.

18. Tielleman T, Bujanda D, Cryer B. Epidemiology and Risk Factors for Upper Gastrointestinal Bleeding. Gastrointest Endosc Clin N Am.2018;28(3):415‑428.

19. Rout G, Sharma S, Gunjan D, et al. Comparison of various prognostic scores in variceal and nonvariceal upper gastrointestinal bleeding: a prospective cohort study. Indian J Gastroenterol.2019;38:158–66.

20. Bai Y, Li ZS. Updates in the management of non‑variceal upper gastrointestinal bleeding. Gastroenterol Rep (Oxf).2019;7(2):91‑99.

21. Lanas A, Dumonceau JM, Hunt RH, et al. Non‑variceal upper gastrointestinal bleeding. Nat Rev Dis Primers.2020;6(1):20.

22. Villanueva C, Colomo A, Bosch A, et al. Transfusion strategies for acute upper gastrointestinal bleeding. N Engl J Med.2013;368(1):11‑21.

23. Thomopoulos KC, Theocharis GJ, Sakellaropoulos GD, et al. Endoscopic treatment for upper gastrointestinal bleeding: A clinical review. World J Gastroenterol.2015;21(36):10353‑10366.