Why the study?
Patients with COVID-19 and prior cardiovascular disease face higher mortality, while those without prior disease may also suffer cardiac complications, prompting evaluation of hs-cTnT and myocardial injury.
Elevated high sensitivity cardiac troponin T is common in COVID-19 patients, even without prior cardiovascular disease, and is associated with more severe disease requiring ICU admission.
hs-cTnT detects myocardial injury in COVID-19; leaves open whether routine monitoring alters management or outcomes.
BACKGROUND: Recent studies have shown that patients diagnosed with coronarivus disease 2019 (COVID-19) and also with previous cardiovascular diseases have a higher mortality due to worsening heart disease. At the same time, patients without previous cardiovascular disease may also have cardiac complications. The aim of this multicenter study was to assess high sensitivity cardiac troponin T (hs-cTnT) in patients with COVID-19 and to evaluate the incidence of myocardial injury. METHODS: In this multicenter study we enrolled 543 patients, 57.8% males, median age 63 years (range 18-99) from three selected hospitals: University Hospital Tor Vergata in Rome, Fondazione IRCCS Ca 'Granda Ospedale Maggiore Policlinico, in Milan, S Chiara Hospital in Trento. We measured hs-cTnT in all patients to assess myocardial injury and correlations with patient's age, symptoms and disease course. RESULTS: The data showed that, among the 543 patients studied, 257 patients (47.3%) had hs-cTnT values higher than the upper reference limit (URL) of 14 ng/L. Patients with high hs-cTnT had more frequently fever (p < 0.01) and respiratory symptoms (p < 0.01), compared to the group with hs-cTnT values below URL. The results showed also that patients with hs-cTnT above URL had a higher frequency of previous cardiovascular disease (p < 0.01) as well as of hypertension (p < 0.01). Instead, among 231 patients with no previous cardiovascular disease, 81 (31.5%) had hs-cTnT values above the URL. Finally. the majority of the patients with high hs-cTnT were admitted to the intensive care unit (p < 0.01). CONCLUSION: Our data suggest the assessment of high sensitivity cardiac troponin in patients with COVID-19 for early diagnosis of cardiac involvement.
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Perrone et al. (2021) studied this question.
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