NEJM Audio Summary - Jan 12, 2012

Excerpted Script

"Cardiac Arrest during Long-Distance Running Races"
Jonathan Kim from Massachusetts General Hospital, Boston.
Approximately 2 million people participate in long-distance running races in the United States annually. The authors report on a U.S. registry of cardiac arrests during marathons and half-marathons.
Of 10.9 million runners, 59 had cardiac arrest (incidence rate, 0.54 per 100,000 participants). Cardiovascular disease accounted for the majority of cardiac arrests. The incidence rate was significantly higher during marathons (1.01 per 100,000) than during half-marathons (0.27) and among men (0.90 per 100,000) than among women (0.16). Male marathon runners, the highest-risk group, had an increased incidence of cardiac arrest during the latter half of the study decade (2000–2004, 0.71 per 100,000; 2005–2010, 2.03 per 100,000). Of the 59 cases of cardiac arrest, 42 (71%) were fatal. Among the 31 cases with complete clinical data, initiation of bystander-administered cardiopulmonary resuscitation and an underlying diagnosis other than hypertrophic cardiomyopathy were the strongest predictors of survival.
Marathons and half-marathons are associated with a low overall risk of cardiac arrest and sudden death. Cardiac arrest, most commonly attributable to hypertrophic cardiomyopathy or atherosclerotic coronary disease, occurs primarily among male marathon participants; the incidence rate in this group increased during the past decade.

論文要約の和訳は、呼吸器内科医「マラソンにおける心肺停止のリスク」参照。NEJMの過去の俯瞰記事"Marathon Maladies"にボストンマラソンの経験がまとめられている。自分も村上春樹の本を読んで走り始めたのでひとごとではない。安全にランを継続して、夢はマルタマラソン。