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Systematic review: tranexamic acid for upper gastrointestinal bleeding.

L L Gluud¹, S L Klingenberg, S E Langholz

¹Copenhagen Trial Unit, Centre for Clinical Intervention Research, Rigshospitalet, Copenhagen, Denmark. liselottegluud@yahoo.dk

Alimentary Pharmacology & Therapeutics

|February 6, 2008

Summary

Tranexamic acid may reduce mortality in upper gastrointestinal bleeding patients. However, more research is needed due to trial limitations before widespread treatment recommendations for tranexamic acid can be made.

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Area of Science:

Gastroenterology
Pharmacology
Critical Care Medicine

Background:

Upper gastrointestinal bleeding (UGIB) is a significant cause of morbidity and mortality.
Tranexamic acid (TXA) is an antifibrinolytic agent with potential to reduce bleeding and improve patient stability.
Its role in managing UGIB requires thorough evaluation through systematic review of existing evidence.

Purpose of the Study:

To systematically review randomized controlled trials (RCTs) investigating the efficacy and safety of tranexamic acid in patients with upper gastrointestinal bleeding.
To assess the impact of tranexamic acid on mortality, bleeding rates, need for surgery, and transfusion requirements.

Main Methods:

Comprehensive literature search of major databases including Cochrane Library, MEDLINE, EMBASE, and Science Citation Index.
Intention-to-treat random-effects meta-analysis of data from eligible double-blind RCTs.
Results presented as risk ratios (RRs) with 95% confidence intervals (CIs).

Main Results:

Seven RCTs involving 1754 patients were included; 21% were excluded from analysis.
Tranexamic acid showed a statistically significant reduction in all-cause mortality (RR: 0.61, 95% CI: 0.42-0.89).
No significant differences were observed in bleeding rates, bleeding-related mortality, surgical intervention, or transfusion needs. Thromboembolic events were not significantly increased.

Conclusions:

Tranexamic acid appears to reduce all-cause mortality in patients with upper gastrointestinal bleeding.
Limitations in the internal and external validity of the included trials necessitate further high-quality research.
Current evidence is insufficient to establish definitive treatment recommendations for tranexamic acid in UGIB management.