Postural tachycardia syndrome: current perspectives

Abstract

Rachel Wells,1,2 Andrew J Spurrier,3 Dominik Linz,1 Celine Gallagher,1 Rajiv Mahajan,1 Prashanthan Sanders,1 Amanda Page,4 Dennis H Lau1 1Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Departments of Cardiology and Medicine, Royal Adelaide Hospital, 2Department of Medicine, Royal Adelaide Hospital, 3Sound Radiology, 4Centre for Nutrition and Gastrointestinal Diseases, University of Adelaide, Adelaide, SA, Australia Abstract: Postural tachycardia syndrome (POTS) is the combination of an exaggerated heart rate response to standing, in association with symptoms of lightheadedness or pre-syncope that improve when recumbent. The condition is often associated with fatigue and brain fog, resulting in significant disruptions at a critical time of diagnosis in adolescence and young adulthood. The heterogeneity of the underlying pathophysiology and the variable response to therapeutic interventions make management of this condition challenging for both patients and physicians alike. Here, we aim to review the factors and mechanisms that may contribute to the symptoms and signs of POTS and to present our perspectives on the clinical approach toward the diagnosis and management of this complex syndrome. Keywords: orthostatic, autonomic, hypermobility, baroreflex, doppler

Keywords

• Postural tachycardia syndrome
• tilt table test
• autonomic dysfunction