Work

The preponderance of initial orthostatic hypotension in postural tachycardia syndrome

Year: 2020

Type: article

Abstract: Significant initial orthostatic hypotension (IOH) occurs in ~50% of postural tachycardia syndrome (POTS) patients and 13% of controls. Heart rate and blood pressure recovery are prolonged in IOH sustaining lightheadedness; IOH is more prevalent and severe in POTS. Altered cerebral blood flow and cardiorespiratory regulation are more prevalent in POTS. Altered heart rate variability and baroreflex gain may cause nearly instantaneous lightheadedness in POTS. IOH alone fails to confer a strong probability of POTS.

Source: Journal of Applied Physiology

DOI: 10.1152/japplphysiol.00540.2020

Authors: Julian M. Stewart, Archana Kota, Mary Breige O’Donnell-Smith, Paul Visintainer, Courtney Terilli, Marvin S. Medow

Institutions: New York Medical College, Baystate Medical Center

Language: English

Topic: Cardiovascular Syncope and Autonomic Disorders

Subfield: Surgery

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: bronze

Funder: National Heart, Lung, and Blood Institute