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Pulmonary Artery Pulse Wave Velocity in Idiopathic Pulmonary Arterial Hypertension.
MedLine Citation:
PMID:  23260799     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Idiopathic pulmonary artery (PA) hypertension (IPAH) is associated with severe PA remodelling. Although the resulting increase in pulse wave velocity (PWV) might be of major pathophysiological relevance, little is known about PA-PWV in IPAH. The aim of this study was to characterize PA-PWV and its predictors in patients with IPAH. METHODS: We studied 26 consecutive patients with incident IPAH aged 55.0 (45.0-66.0) years (62% female) and 10 control subjects without pulmonary hypertension. PA-PWV was measured invasively; PA wall thickness and diameter were assessed using intravascular and transthoracic ultrasonography. RESULTS: PA-PWV was higher in IPAH than in control subjects (10.0 [7.5-14.0] m/s vs 3.5 [1.9-4.0] m/s; P < 0.001) as was also PA diameter and PA wall thickness. In IPAH patients, in univariate analysis PA-PWV was greater in men than in women and in patients with body mass index (BMI) < 25 kg/m(2) than with BMI ≥ 25 kg/m(2) and correlated positively with symptomatic disease duration, mean PA pressure, pulmonary vascular resistance, creatinine level, and negatively with low-density lipoprotein (LDL) cholesterol and triglyceride level but not with PA diameter or PA wall thickness. In multiple regression analysis mean PA pressure, LDL cholesterol level and BMI < 25 kg/m(2) were the main predictors of PA-PWV in IPAH patients (R(2) = 77%; P < 0.001). CONCLUSIONS: PA-PWV is increased in IPAH patients. High PA pressure, low LDL cholesterol level, and BMI < 25 kg/m(2) explain most of its variability in this group.
Authors:
Grzegorz Kopeć; Deddo Moertl; Piotr Jankowski; Anna Tyrka; Bartosz Sobień; Piotr Podolec
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-20
Journal Detail:
Title:  The Canadian journal of cardiology     Volume:  -     ISSN:  1916-7075     ISO Abbreviation:  Can J Cardiol     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8510280     Medline TA:  Can J Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Canadian Cardiovascular Society. Published by Elsevier Inc. All rights reserved.
Affiliation:
Department of Cardiac and Vascular Diseases at John Paul II Hospital, Krakow, Poland. Electronic address: gkopec@szpitaljp2.krakow.pl.
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