Bricker J T, Porter C J, Garson A, Gillette P C, McVey P, Traweek M, McNamara D G
Am J Cardiol. 1985 Apr 1;55(8):1001-4. doi: 10.1016/0002-9149(85)90734-9.
Exercise testing using a modified Bruce treadmill protocol was performed by 17 children with Wolff-Parkinson-White (WPW) syndrome. All had intracardiac electrophysiology studies as well. Endurance time, heart rate and blood pressure were normal during exercise. Ventricular premature complexes were seen with exercise in 2 patients and supraventricular tachycardia with exercise testing was seen in 2. Disappearance of the delta wave with exercise correlated with a long anterograde effective refractory period of the Kent bundle (360 to 390 ms). Children with partial normalization of the QRS during exercise had a longer anterograde effective refractory period of the Kent bundle than those in whom preexcitation persisted. In 1 patient, disappearance of the delta wave with exercise confirmed the diagnosis of WPW syndrome. Preexcitation was seen only after exercise in 1 patient. Exercise testing is of value in the evaluation of children with WPW syndrome; children with WPW syndrome who have total normalization of the QRS interval during exercise and few or no symptoms of tachycardia do not require electrophysiologic study.
17名患有 Wolff-Parkinson-White（WPW）综合征的儿童采用改良的布鲁斯跑步机方案进行了运动测试。所有人也都进行了心内电生理研究。运动期间耐力时间、心率和血压均正常。2例患者运动时出现室性早搏，2例运动测试时出现室上性心动过速。运动时δ波消失与肯特束较长的前传有效不应期（360至390毫秒）相关。运动期间QRS部分正常化的儿童，其肯特束的前传有效不应期比预激持续存在的儿童更长。1例患者运动时δ波消失确诊为WPW综合征。1例患者仅在运动后出现预激。运动测试对评估WPW综合征儿童有价值；运动期间QRS间期完全正常且很少或没有心动过速症状的WPW综合征儿童不需要进行电生理研究。
