Postural tachycardia syndrome
Conditions
Interventions
Control:oral salt rehydration therapy
Experimental: Yudanrongxin pills
Sponsors
Department of Pediatrics, Peking University First Hospital
Eligibility
Sex/Gender
All
Age
5 Years to 17 Years
Inclusion criteria
Inclusion criteria: (1) a child has a normal heart rate when supine and no evidence of cardiac disease; (2) symptoms of orthostatic intolerance including dizziness, weakness, palpitations, pale face, blurred vision, short of breath, syncope, gastrointestinal symptoms, or headache developing on standing or after head-up tilt and resolving with recumbency and should occur repeatedly for longer than 2 month; (3) in addition to complained of orthostatic intolerance (OI), the child displays an increase in heart rate of more than 40 beats/min or a heart rate of more than 120 beats/min within the first 10 min of stand upright frome recumbence.
Exclusion criteria
Exclusion criteria: Children with other diseases that manifest symptoms in the autonomic nervous system (eg., severe anemia, arrhythmia, hypertension, endocrine disorders) as well as cardiac or neurologic diseases that would induce syncope, were excluded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Syptom score;Heart rate;acetylcholine receptor antibody;Catecholamine; | — |
Contacts
Public ContactQingyou Zhang
Outcome results
None listed