Prognostic Significance of Elevated Cardiac Troponin in Acute Gastrointestinal Bleeding

Umair Iqbal, Osama Siddique, Ayesha Jameel, Hafsa Anwar, Ahmad Chaudhary


Background: Acute gastrointestinal bleeding (AGIB) is responsible for over 140,000 hospitalizations annually. Cardiovascular-related deaths account for 30% of the patients surviving the initial episode of AGIB. The purpose of this study was to identify the impact of elevated troponin on short-term mortality and length of stay (LOS) of these patients.

Methods: From July 2013 to July 2016, 290 patients admitted with a diagnosis of AGIB and who had cardiac troponin I measured within 24 h of presentation were retrospectively reviewed. Clinical variables including 30-day mortality, 30-day readmission and LOS were then compared between the groups of troponin elevation and no troponin elevation.

Results: The overall 30-day mortality among patients with AGIB was 6.5% (19/290). Cardiac troponin was elevated in 10% of patients (29/290). Among patients with normal troponin, 5% (13/261) died within 30 days. In patients with troponin elevation, 21% died in the same period (6/29, P = 0.001). The LOS was also higher in patients with troponin elevation (6 vs. 5 days, P = 0.02). There was no difference in 30-day readmission among the two groups. Past history of coronary artery disease, congestive heart failure, hypertension, aspirin use and elevated creatinine was more common in patients with troponin elevation. On multivariate analysis, troponin elevation on presentation is associated with increased mortality (odds: 5.50, CI: 1.73 - 17.47, P = 0.004).

Conclusion: In patients admitted to the inpatient service with AGIB, elevated troponin I on presentation is associated with high short-term mortality and longer hospital stay.

Gastroenterol Res. 2017;10(4):238-243


Acute gastrointestinal bleeding; Troponin I; Troponin in gastrointestinal bleeding; Mortality; Length of stay

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