Background: Concerns have been expressed about the COVID-19 pandemic's potential long-term effects on cardiovascular health. Myocarditis, arrhythmias, and thromboembolic events are among the persistent cardiovascular problems that people healing from COVID-19 may encounter, according to new research. The long-term effects of COVID-19 infection and recovery on cardiovascular health are examined in this research. Materials and Methods: 500 adult patients who recovered from laboratory-confirmed COVID-19 between March 2020 and December 2021 were included in this retrospective cohort analysis. Acute phase clinical and radiological symptoms were used to stratify patients into three severity groups: mild (n = 200), moderate (n = 200), and severe (n = 100). At six, twelve, and twenty-four months after recovery, follow-up assessments were carried out. Cardiovascular evaluations included biomarker measurements for troponin T and NT-proBNP, echocardiography, and 24-hour Holter monitoring. To evaluate the connection between the severity of the illness and cardiovascular outcomes, statistical studies were conducted. Results: Cardiovascular problems were noted in 35% of patients in the severe group, 18% in the moderate group, and 5% in the mild group 24 months after recovery (p<0.001). Reduced left ventricular ejection fraction (8%), arrhythmias (10%), and myocardial fibrosis (12%) were frequent side effects. In 20% of severe cases, biomarker levels remained high, suggesting ongoing subclinical inflammation. Long-term problems were more likely to occur in patients with comorbid conditions including diabetes and hypertension. Conclusion: The necessity for prolonged follow-up and care of at-risk groups is highlighted by the substantial long-term cardiovascular effects linked to COVID-19 infection, especially in severe instances. The significance of integrated post-COVID care techniques is highlighted by the potential for early diagnosis and intervention to reduce negative outcomes.