en کاردرمانی Occupational Therapy مطالعه موردی Case Study <div style="text-align: justify;">Occupation-based models can integrate the occupation into Occupational Therapy (OT) practice. These models offer a theoretical basis for OT interventions.&nbsp; Person-Environment-Occupation (PEO) is one of these models, but there is limited evidence to outline the use of PEO to support OT in cardiovascular diseases. Therefore; the aim of this study is to investigate the usefulness of this model in a patient with a cardiovascular disease.&nbsp; The participant was a 48-year old woman with cardiac disease (heart failure with NHYA 3). Results indicate that the application of PEO model significantly improved physical function and the quality of life. The findings of this study suggest that PEO can guide OT practice in cardiac rehabilitation.<br> &nbsp;</div> Person-Environment-Occupation, Occupational therapy, Cardiac disease 65 70 http://fdj.iums.ac.ir/browse.php?a_code=A-10-26-6&slc_lang=en&sid=1 Zeinab Fathipour-Azar 10031947532846001207 10031947532846001207 Yes PhD Student, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran Mahnaz Hejazi Shirmard 10031947532846001208 10031947532846001208 No PhD Student, Department of Occupational Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran