Echocardiographic Indicators Associated with Adverse Clinical Course and Cardiac Sequelae in Multisystem Inflammatory Syndrome in Children with Coronavirus Disease 2019 - 03/08/21
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Abstract |
Background |
Multisystem inflammatory syndrome in children (MIS-C) associated with coronavirus disease 2019 causes significant cardiovascular involvement, which can be a determinant of clinical course and outcome. The aim of this study was to investigate whether echocardiographic measures of ventricular function were independently associated with adverse clinical course and cardiac sequelae in patients with MIS-C.
Methods |
In a longitudinal observational study of 54 patients with MIS-C (mean age, 6.8 ± 4.4 years; 46% male; 56% African American), measures of ventricular function and morphometry at initial presentation, predischarge, and at a median of 3- and 10-week follow-up were retrospectively analyzed and were compared with those in 108 age- and gender-matched normal control subjects. The magnitude of strain is expressed as an absolute value. Risk stratification for adverse clinical course and outcomes were analyzed among the tertiles of clinical and echocardiographic data using analysis of variance and univariate and multivariate regression.
Results |
Median left ventricular apical four-chamber peak longitudinal strain (LVA4LS) and left ventricular global longitudinal strain (LVGLS) at initial presentation were significantly decreased in patients with MIS-C compared with the normal cohort (16.2% and 15.1% vs 22.3% and 22.0%, respectively, P < .01). Patients in the lowest LVA4LS tertile (<13%) had significantly higher C-reactive protein and high-sensitivity troponin, need for intensive care, and need for mechanical life support as well as longer hospital length of stay compared with those in the highest tertile (>18.5%; P < .01). Initial LVA4LS and LVGLS were normal in 13 of 54 and 10 of 39 patients, respectively. There was no mortality. In multivariate regression, only LVA4LS was associated with both the need for intensive care and length of stay. At median 10-week follow-up to date, seven of 36 patients (19%) and six of 25 patients (24%) had abnormal LVA4LS and LVGLS, respectively. Initial LVA4LS < 16.2% indicated abnormal LVA4LS at follow-up with 100% sensitivity.
Conclusion |
Impaired LVGLS and LVA4LS at initial presentation independently indicate a higher risk for adverse acute clinical course and persistent subclinical left ventricular dysfunction at 10-week follow-up, suggesting that they could be applied to identify higher risk children with MIS-C.
Le texte complet de cet article est disponible en PDF.Highlights |
• | Children with MIS-C can develop significantly impaired LV function. |
• | Initial impaired LV strain can be associated with adverse clinical course. |
• | Initial impaired strain may indicate subclinical LV dysfunction at 10 wks follow-up. |
• | This study supports the use of LV strain to identify higher risk children with MIS-C. |
Keywords : MIS-C, COVID-19, Cardiac function, Ventricular strain
Abbreviations : 2D, COVID-19, ECMO, ICU, LOS, LV, LVA4LS, LVCS, LVEF, LVGLS, MIS-C, MRI, ROC, RV, SARS-CoV-2, STE, VA
Plan
Drs. Sanil and Misra contributed equally to this article. |
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Conflicts of interest: None. |
Vol 34 - N° 8
P. 862-876 - août 2021 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.