Postural tachycardia syndrome with asystole on head-up tilt. Clin Auton Res 2008 Feb;18(1):36-9
Date
10/24/2007Pubmed ID
17955328DOI
10.1007/s10286-007-0445-9Scopus ID
2-s2.0-43149126599 (requires institutional sign-in at Scopus site) 19 CitationsAbstract
Enhanced sympathetic activity causes an exaggerated heart rate response to standing in the postural tachycardia syndrome (POTS). All patients describe symptoms of orthostatic intolerance such as dizziness, blurred vision, shortness of breath, palpitations, tremulousness, chest discomfort, headache, lightheadedness and nausea, but only one third suffer loss of consciousness. We report four patients with POTS, who had long ventricular pauses (i.e. asystole) and syncope during head-up tilt test. This suggests that a subset of patients with POTS can have a surge in parasympathetic outflow that precedes vasovagal syncope.
Author List
Alshekhlee A, Guerch M, Ridha F, Mcneeley K, Chelimsky TCMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Autonomic Nervous System Diseases
Blood Pressure
Bradycardia
Female
Heart Arrest
Heart Rate
Humans
Male
Posture
Syncope
Syndrome
Tachycardia
Tilt-Table Test
