Statistical analysis
The statistical analysis was done using SPSS (version 26). Continuous and categorical variables are presented as the median (IQR) and n (%), respectively. The Mann-Whitney U test, χ² test, or independent sample t test were used to compare differences between critical and non-critical patients where appropriate. We use univariable and multivariable logistic regression analysis to explore risk factors associated with adverse outcome. Considering the total number of patients with adverse outcome (n=28) in our study and to ensure stability of the multivariable logistic regression model, four variables were included in the analysis. Our model included age, comorbidity of cardiac disease, hs-cTnI elevation and echocardiographic signs of pulmonary hypertension based on previous studies and results of baseline characteristics comparison. For all analysis, statistical significance was considered p< 0.05.