Abe H, Iwami Y, Nakashima Y, Kohshi K, Kuroiwa A
Second Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
Jpn Heart J. 1997 Jul;38(4):535-9. doi: 10.1536/ihj.38.535.
We describe a 16-year-old female referred for evaluation of syncope associated with competitive long distance running. She had experienced 4 episodes of syncope during competitive long distance racing. The syncope associated with marked bradycardia and asystole was demonstrated by head-up tilt testing without isoproterenol infusion. Oral propranolol therapy failed to prevent the syncope. Oral disopyramide therapy, however, prevented the syncope induced by both head-up tilt testing and competitive long distance racing. Caution should be urged in evaluating athletes with syncope, especially in the pediatric age group, because the cause of the syncope may result from life-threatening disorders such as cardiomyopathy, long QT syndrome, or exercise-induced arrhythmias. The head-up tilt test is an important diagnostic tool for the evaluation of exercise-associated syncope.
我们描述了一名16岁女性，因与竞技长跑相关的晕厥前来接受评估。她在竞技长跑比赛中经历了4次晕厥发作。在未输注异丙肾上腺素的情况下，头高位倾斜试验证实晕厥与显著心动过缓和心脏停搏有关。口服普萘洛尔治疗未能预防晕厥。然而，口服丙吡胺治疗可预防头高位倾斜试验和竞技长跑诱发的晕厥。在评估晕厥的运动员时应谨慎，尤其是在儿童年龄组，因为晕厥原因可能源于诸如心肌病、长QT综合征或运动诱发心律失常等危及生命的疾病。头高位倾斜试验是评估运动相关性晕厥的重要诊断工具。
