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Despite advances in the management of patients with upper gastrointestinal bleeding (UGIB), associated morbidity and mortality remain significant. Most patients, however, will experience favorable outcomes without a need for hospital-based interventions. Risk assessment scores may assist in such early risk-stratification. These scales may optimize identification of low-risk patients, resulting in better resource utilization, including a reduced need for early endoscopy and fewer hospital admissions. The aim of this article is to provide an updated detailed review of risk assessment scores in UGIB. A literature review identified past and currently available pre-endoscopic risk assessment scores for UGIB, with a focus on low-risk prediction. Strengths and weaknesses of the different scales are discussed as well as their impact on clinical decision-making. The current evidence supports using the Glasgow Blatchford Score as it is the most accurate tool available when attempting to identify low-risk patients who can be safely managed on an outpatient basis. Currently, no risk assessment tool appears accurate enough in confidently classifying patients as high risk. Future research should utilize more standardized methodologies, while favoring interventional trial designs to better characterize the clinical impact attributable to the use of such risk stratification schemes.

Strengths and limitations of risk stratification tools for patients with upper gastrointestinal bleeding: a narrative review