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General hypertrophic cardiomyopathy, “It’s okay to exercise”

[이데일리 이순용 기자]Researchers in Korea have published research results that will provide a new direction for the treatment of hypertrophic cardiomyopathy.

On the 20th, Professor Kim Hyung-gwan of the Department of Cardiology at Seoul National University Hospital (Professor Hyun-Jung Lee and Soon-il Kwon) announced the results of follow-up observations of 7,666 patients with hypertrophic cardiomyopathy for an average of 5.3 years from 2009 to 2016. Studies have shown that patients with hypertrophic cardiomyopathy in the general population have a lower risk of dying as they exercise harder. This is a research result that is different from conventional wisdom.

Hypertrophy (肥厚) cardiomyopathy is a symptom of thickening of the left ventricle wall without any specific cause. Arrhythmia occurs, and in severe cases, it leads to sudden cardiac death, requiring attention. In fact, hypertrophic cardiomyopathy is the most common cause of sudden cardiac death in athletes. World-famous baseball, soccer, and badminton players are also known to have died suddenly from hypertrophic cardiomyopathy.

Until now, existing medical guidelines such as the United States and Europe have recommended that patients with hypertrophic cardiomyopathy avoid exercise to prevent arrhythmia and sudden death. However, unlike athletes, as some studies have been published that show that patients with hypertrophic cardiomyopathy in general have less incidence of sudden cardiac death, further research is needed whether the general population should also restrict exercise.

The research team developed an index that can measure exercise intensity through questionnaire questions. Afterwards, patients were divided into 1,2,3 groups according to exercise intensity, and mortality rates were compared between groups. As a result, the group 3 who exercised at the high intensity level had a 22% and 25% lower risk of death for cardiovascular disease and the total mortality risk, respectively, compared to the group 2 who exercised at the medium intensity level. In general, patients with hypertrophic cardiomyopathy also had a lower risk of death as exercise intensity increased.

Total mortality risk and cardiovascular disease mortality risk of hypertrophic cardiomyopathy according to exercise intensity. The higher the exercise intensity, the lower the risk of death.

Professor Kim Hyung-gwan said, “It is meaningful to show that patients with hypertrophic cardiomyopathy can live longer if they exercise like healthy people. Through this study, we have laid the groundwork for recommending appropriate level of daily exercise to patients. “It was meaningful.

Professor Lee Hyun-jung emphasized, “This study is expected to contribute to reducing unnecessary fear of hypertrophic cardiomyopathy patients who have vague fear of exercise, and to improve existing guidelines for hypertrophic cardiomyopathy.

The study was published in the latest issue of the British Journal of Sports Medicine, the most prestigious in the field of sports medicine.

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