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Neurogenic orthostatic hypotension – management update and role of droxidopa

Authors Vijayan J, Sharma VK

Received 2 April 2015

Accepted for publication 18 May 2015

Published 8 June 2015 Volume 2015:11 Pages 915—923

DOI https://doi.org/10.2147/TCRM.S68439

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Professor Garry Walsh

Joy Vijayan,1 Vijay K Sharma1,2

1Department of Medicine, Division of Neurology, National University Health System, 2Yong Loo Lin School of Medicine, National University of Singapore, Singapore

Abstract: Orthostatic hypotension (OH) is defined as a significant decrease in blood pressure (BP) during the first 3 minutes of standing or a head up on a tilt table. Symptoms of OH are highly variable, ranging from mild light-headedness to recurrent syncope. OH occurs due to dysfunction of one or more components of various complex mechanisms that interplay closely to maintain BP in a normal range during various physiological and associated disease states. Various biochemical and electrophysiological studies are often undertaken to assess the severity and etiology of OH. In addition to the lifestyle modifications, various medications that stimulate the adrenergic receptors or increase central blood volume are used in patients with OH. Droxidopa is a newer agent that increases the levels of norepinephrine in postganglionic sympathetic neurons. Management strategies for OH are presented, including the mechanism of action of droxidopa and various studies performed to assess its efficacy.

Keywords: orthostatic hypotension, systemic blood pressure, midodrine, fludrocortisone, droxidopa

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