Acta cardiologica · 2021
Assessment of COVID-19 deaths from cardiological perspective.
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Omar Timor, Karakayalı Muammer, Perincek Gökhan
Аннотация
BACKGROUND: COVID-19 can cause a variety of cardiac complications and a range of electrocardiographic abnormalities. We analysed cardiological parameters including ECG and high-sensitivity troponin T (hs-TnT) level and their association with mortality in hospitalised patients with COVID-19.
METHODS: We retrospectively analysed the demographics, comorbidities, laboratory findings and electrocardiographic parameters of 453 consecutive patients, whose outcome was clear, died or discharged. Findings were compared between survivors and non-survivors. Also, the same comparison was made between cardiac injury and no-cardiac injury subgroups.
RESULTS: The cardiac injury group had significantly higher in-hospital mortality than the no-cardiac injury group. Also, frequencies of atrial fibrillation, axis change, ST-segment/T-wave change, fragmented QRS, premature atrial/ventricular contraction was found to be higher in the cardiac injury group. Moreover, non-survivors had longer QRS intervals, more frequent ST-segment/T-wave changes and isolated S1Q3T3 pattern than surviving patients. Laboratory results showed median values of hs-TnT at the admission of 4.95 ng/L (IQR, 3-12.35) with concentrations markedly higher in the non-surviving patients vs survivors. Hs-TnT value along with age and respiratory rate was found to be an independent predictor of in-hospital mortality in hospitalised patients with COVID-19. Comorbidities were more frequently reported in non-surviving and cardiac injury groups than those surviving and without cardiac injury.
CONCLUSIONS: In COVID-19 patients, both elevated hs-TnT and ECG abnormalities, suggesting cardiac involvement, on admission portends an ominous prognosis and indicates at higher risk of in-hospital mortality. Prioritised treatment and more aggressive therapeutic strategies could be planned to avoid the occurrence of death in these patients.
METHODS: We retrospectively analysed the demographics, comorbidities, laboratory findings and electrocardiographic parameters of 453 consecutive patients, whose outcome was clear, died or discharged. Findings were compared between survivors and non-survivors. Also, the same comparison was made between cardiac injury and no-cardiac injury subgroups.
RESULTS: The cardiac injury group had significantly higher in-hospital mortality than the no-cardiac injury group. Also, frequencies of atrial fibrillation, axis change, ST-segment/T-wave change, fragmented QRS, premature atrial/ventricular contraction was found to be higher in the cardiac injury group. Moreover, non-survivors had longer QRS intervals, more frequent ST-segment/T-wave changes and isolated S1Q3T3 pattern than surviving patients. Laboratory results showed median values of hs-TnT at the admission of 4.95 ng/L (IQR, 3-12.35) with concentrations markedly higher in the non-surviving patients vs survivors. Hs-TnT value along with age and respiratory rate was found to be an independent predictor of in-hospital mortality in hospitalised patients with COVID-19. Comorbidities were more frequently reported in non-surviving and cardiac injury groups than those surviving and without cardiac injury.
CONCLUSIONS: In COVID-19 patients, both elevated hs-TnT and ECG abnormalities, suggesting cardiac involvement, on admission portends an ominous prognosis and indicates at higher risk of in-hospital mortality. Prioritised treatment and more aggressive therapeutic strategies could be planned to avoid the occurrence of death in these patients.