Admission High-Sensitive Cardiac Troponin T Level Increase Is Independently Associated with Higher Mortality in
Romaric Larcher1,2, Noemie Besnard3, Aziz Akouz4
1Biochemistry and Hormonology Department, Lapeyronie Hospital, University Hospital of Montpellier, 34090 Montpellier, France.
Insights
High-sensitive cardiac troponin T (hs-cTnT) levels at ICU admission predict in-hospital mortality in critically ill COVID-19 patients. Higher hs-cTnT and lower PaO2/FiO2 independently indicate increased mortality risk.
Area of Science:
- Cardiology
- Critical Care Medicine
- Infectious Diseases
Background:
- Elevated high-sensitive cardiac troponin T (hs-cTnT) in COVID-19 is linked to adverse outcomes.
- Prognostic value of hs-cTnT in critically ill COVID-19 patients requires further assessment.
Purpose of the Study:
- To evaluate the predictability of hs-cTnT for in-hospital mortality in critically ill COVID-19 patients.
- To assess hs-cTnT as an early risk stratification tool for intensive care unit (ICU) admissions.
Main Methods:
- Multicenter retrospective cohort study conducted in French ICUs from March to May 2020.
- Included 111 laboratory-confirmed COVID-19 patients.
- Assessed in-hospital mortality predictability of hs-cTnT levels at ICU admission.
Main Results:
- Median hs-cTnT serum levels were 16.0 ng/L at ICU admission.
- In-hospital mortality was 29% (32/111).
- Lower PaO2/FiO2 and higher hs-cTnT levels were independently associated with in-hospital mortality.
Conclusions:
- hs-cTnT levels, along with PaO2/FiO2, can aid in early risk stratification of critically ill COVID-19 patients.
- hs-cTnT may assist in triage decisions for severe COVID-19 cases.
Background:
In coronavirus disease 2019 (COVID-19) patients, increases in high-sensitive cardiac troponin T (hs-cTnT) have been reported to be associated with worse outcomes. In the critically ill, the prognostic value of hs-cTnT, however, remains to be assessed given that most previous studies have involved a case mix of non- and severely ill COVID-19 patients.
Methods:
We conducted, from March to May 2020, in three French intensive care units (ICUs), a multicenter retrospective cohort study to assess in-hospital mortality predictability of hs-cTnT levels in COVID-19 patients.
Results:
111 laboratory-confirmed COVID-19 patients (68% of male, median age 67 (58-75) years old) were included. At ICU admission, the median Charlson Index, Simplified Acute Physiology Score II, and PaO2/FiO2 were at 3 (2-5), 37 (27-48), and 140 (98-154), respectively, and the median hs-cTnT serum levels were at 16.0 (10.1-31.9) ng/L. Seventy-five patients (68%) were mechanically ventilated, 41 (37%) were treated with norepinephrine, and 17 (15%) underwent renal replacement therapy. In-hospital mortality was 29% (32/111) and was independently associated with lower PaO2/FiO2 and higher hs-cTnT serum levels.
Conclusions:
At ICU admission, besides PaO2/FiO2, hs-cTnT levels may allow early risk stratification and triage in critically ill COVID-19 patients.
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