Abstract Background: Coronavirus disease is an infectious respiratory disease caused by the Coronavirus, SARS-CoV-2. In March 2020, the World Health Organization declared that the Coronavirus-19 outbreak became a global pandemic. Globally, several measures were implemented to control the pandemic, including staying-at-home orders, wearing face masks, and modifying medical services. For instance, outpatient services, routine diagnostic procedures, sereening campaigns, and regular surgical procedures were disrupted in several healthcare facilities. Since cardiac centres are essential facilities in the healthcare system, any adaptive measure should take into consideration its impact on patients' outcomes. Aim: The study aimed to investigate the adaptation of patient management and cardiac health care services at a specialized cardiac centre in the Kingdom of Bahrain during the COVID-19 pandemic. Methodology: A cross-sectional study was conducted among 214 nurses working in the cardiac centre using convenience sampling methods and the Patient Management and Cardiac Health Care Services questionnaire. Results: A total of 214 nurses were included in the study. Most participants were females (89.3%) with a mean age of 34.6 ± 7.9 years. The majority of participants noticed a reduction in the number of hospitalized patients (87.4%) during the Coronavirus-19 pandemic. According to the participants, smartphone applications were used to overcome face-to-face consultations (52.8-65%) and the appointments were changed to phone consultations (60.7%). Outpatient and diagnostic services were the most affected services (95.8% and 94.4%, respectively), while emergency and eritical care units were the least affected services (56.6% and 30.8%, respectively), (P<0.001). Conclusion: In conclusion, several adaptations and changes in cardiac services were made in response to the Coronavirus-19 pandemic, including the use of telehealth services, the use of alternative procedures, limiting the number of procedures and surgeries, and the implementation of a novel home delivery service for medications. Although essential cardiac services continued to function, several diagnostic and outpatient services were disrupted. The recognition of this study is the need for developing protocol care for patients admitted for ACS as part of the COVID-19 pandemic. As well, further studies are needed to assess the impact of these adaptations on patients' outcomes as well as the efficiency of these interventions in the post- pandemic period. as well as the efficiency of these interventions in the post-pandemic period are needed. Keywords: Patients, Nurses, COVID-19 crisis, health care services.