Key result
Elevated cardiac Troponin T on ICU admission was not significantly associated with hospital mortality in critically ill patients without myocardial infarction (adjusted OR 1.50; 95% CI 0.88-2.57).
Why the study?
To investigate the association of cardiac Troponin T with prognosis in critically ill patients without myocardial infarction.
Does elevated cTnT on ICU admission predict hospital mortality in critically ill patients without myocardial infarction?
Cohort (n=2,960)
No
Does elevated cTnT on ICU admission predict hospital mortality in critically ill patients without myocardial infarction?
Odds Ratio: 1.5 (95% CI 0.88–2.57)
Absolute Event Rate: 11.21% vs 7.39%
p-value: p=0.075
Elevated cardiac Troponin T on ICU admission does not significantly predict hospital mortality in critically ill patients without myocardial infarction.
Admission cTnT should not guide mortality risk assessment in non-MI ICU patients; leaves open its added value in larger prospective cohorts.
PURPOSE: To investigate the association of cardiac Troponin T (cTnT) with prognosis in critically ill patients without myocardial infarction. METHODS: Adult patients admitted to the intensive care units (ICUs) of the Beth Israel Deaconess Medical Center between 2008 and 2019 who were free of myocardial infarction with a length of ICU stay ≥24 hours and available cTnT records within 24 hours before and after ICU admission were included. The association between cTnT on ICU admission and hospital mortality was evaluated by multivariable logistic regression analysis. The discrimination capacity of cTnT on ICU admission for predicting hospital mortality was examined by receiver operating characteristic (ROC) analysis. RESULTS: A total of 2960 patients were included. Elevated cTnT (>0.01 ng/mL) was observed in 2730 (92.23%) patients with a higher hospital mortality compared to normal cTnT (11.21% versus 7.39%, P=0.075). There was no statistically significant association between elevated cTnT on ICU admission and hospital mortality (adjusted odds ratio 1.50, 95% confidence interval (CI) 0.88-2.57). Poor discrimination capacity was found for cTnT on ICU admission to predict hospital mortality (area under the ROC curve 0.48, 95% CI 0.44-0.53). CONCLUSION: cTnT on ICU admission has limited prognostic value in critically ill patients without myocardial infarction.
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Xie et al. (2021) conducted a cohort in Critically ill patients without myocardial infarction (n=2,960). Elevated cardiac Troponin T (>0.01 ng/mL) on ICU admission vs. Normal cTnT was evaluated on Hospital mortality (adjusted OR 1.50, 95% CI 0.88-2.57, p=0.075). Elevated cardiac Troponin T on ICU admission was not significantly associated with hospital mortality in critically ill patients without myocardial infarction (adjusted OR 1.50; 95% CI 0.88-2.57).
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