Value of Immediate Heart Rate Alteration From Supine to Upright in Differential Diagnosis Between Vasovagal Syncope and Postural Tachycardia Syndrome in Children

[摘要] Objectives: To explore the predictive value of immediate heart rate alteration from supine to upright in the differential diagnosis between vasovagal syncope (VVS) and postural tachycardia syndrome (POTS) in children.

[学科分类] 儿科学

[关键词] vasovagal syncope;postural tachycardia syndrome;orthostatic intolerance;heart rate;acceleration index;30/15 ratio;children