Abstract Background: The COVID-19 pandemic has brought to the fore significant challenges in understanding the disease’s impact on cardiovascular health. Emerging evidence suggests that COVID-19 patients, especially those with severe symptoms, face considerable cardiovascular complications. Objectives: This study aims to investigate the extent and nature of cardiovascular complications in COVID-19 patients admitted to intensive care units (ICUs) in Saudi Arabia, thereby contributing to the broader understanding of the disease’s cardiovascular impact. Methods: This study was conducted at Almoosa Hospital; this cohort study involved adult patients (aged 18 and above) hospitalized with confirmed COVID-19 and admitted to the ICU. Patients with preexisting cardiovascular conditions or incomplete medical records were excluded. The study focused on outcomes such as myocardial injury and arrhythmias, utilizing SPSS version 26 for logistic regression and survival analysis in data analysis. Results: Our research revealed a high incidence of myocardial injury and arrhythmias among severely ill COVID-19 patients. These findings highlight the significant cardiovascular impact of COVID-19, particularly in severe cases, extending beyond the common respiratory complications. Conclusion: The study underscores the critical need for vigilant cardiovascular care in managing severe COVID-19 cases. It suggests the potential need for revising medical protocols and emphasizes the importance of ongoing research, especially in understanding long-term cardiovascular outcomes in COVID-19 survivors. This research contributes valuable insights to the evolving landscape of COVID-19-related cardiovascular health implications.