Decision-making processes behind seeking regular cardiac checkups for individuals with Marfan syndrome: A grounded theory study.

Patients with Marfan syndrome (MFS) present with various symptoms, such as aortic aneurysm/dissection, tall stature, and lens deviation. Among them, acute aortic dissection is a complication that leads to sudden death. Some individuals with MFS are reluctant to see a cardiologist and discontinue regular checkups until they develop life-threatening complications. We conducted a grounded theory study to investigate how individuals with MFS decided whether to adhere to healthcare recommendations, specifically to attend cardiology appointments. The study recruited individuals with a clinical or genetic diagnosis of MFS from a Japanese university hospital and individuals from a support group. Semi-structured interviews were conducted with 28 consenting participants. In this study, we identified the decision-making processes of individuals with MFS concerning their cardiology visits. We extracted "perception of the gap between their health status and medical recommendations" as the central category. This decision-making process consisted of three parts: (A) the process by which an individual with MFS sees a cardiologist for the first time, (B) the process by which an individual with MFS keeps up with cardiology checkups, and (C) the process by which parents bring their children with MFS to the cardiologist. Individuals who learned of the possibility of MFS decided whether to adhere to medical recommendations depending on how they perceived the gap between their health status and the medical recommendations. In addition to medical information and treatment experience, adaptation to MFS, which changed through interactions with others, influenced the perception of the gap. This study suggests the role of genetic counseling and molecular genetic diagnosis as factors that may facilitate adaptation to MFS. The involvement of genetic counselors is important for helping individuals with MFS keep up with regular checkups while affirming their own experiences. These results provide insight into adherence to medical recommendations for individuals with MFS.