The preponderance of initial orthostatic hypotension in postural tachycardia syndrome-Reference-Cited by-同舟云学术

The preponderance of initial orthostatic hypotension in postural tachycardia syndrome

Published:2020-09-01 Issue:3 Volume:129 Page:459-466
ISSN:8750-7587
Container-title:Journal of Applied Physiology
language:en
Short-container-title:Journal of Applied Physiology

Author:

Stewart Julian M.¹²,Kota Archana¹,O’Donnell-Smith Mary Breige¹,Visintainer Paul³,Terilli Courtney¹,Medow Marvin S.¹²

Affiliation:

1. Department of Pediatric, New York Medical College, Valhalla, New York

2. Department of Physiology, New York Medical College, Valhalla, New York

3. Baystate Medical Center, University of Massachusetts School of Medicine, Springfield, Massachusetts

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.

Funder

National Heart Lung and Blood Institute

Publisher

American Physiological Society

Subject

Physiology (medical),Physiology

Link

https://journals.physiology.org/doi/pdf/10.1152/japplphysiol.00540.2020

Reference50 articles.

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2. Mechanisms of initial heart rate response to postural change

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4. Comparing Spectra of a Series of Point Events Particularly for Heart Rate Variability Data

5. Reduced Cerebral Blood Flow With Orthostasis Precedes Hypocapnic Hyperpnea, Sympathetic Activation, and Postural Tachycardia Syndrome

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