The Noninvasive Evaluation of Exercise-induced Changes in Pulmonary Artery Pressure and Pulmonary Vascular Resistance

Chad M. Bidart, Amr E. Abbas, James M. Parish, Hari P Chaliki, Carlos A. Moreno, Steven Jay Lester

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Background: During exercise, pulmonary artery systolic pressure (PASP) may increase. The purpose of this study was to examine the responses of PASP and pulmonary vascular resistance by Doppler echocardiography during exercise in conditioned athletes and in patients with pulmonary disease. Methods: Fifteen participants in each group were evaluated using Doppler echocardiography at rest and during recumbent bicycle exercise. PASP was calculated using 4 times the tricuspid regurgitant velocity squared (TRV)2 and a surrogate for pulmonary vascular resistance was calculated using the equation: pulmonary vascular resistance = TRV/right ventricular outflow tract time-velocity integral. Results: During exercise, PASP increased in both groups with higher values achieved by patients with pulmonary conditions (54.8 vs 70.6 mm Hg, P = .009). At baseline the ratio TRV/right ventricular outflow tract time-velocity integral was 0.2 or less in both the athlete and pulmonary groups. During exercise, the ratio of TRV/right ventricular outflow tract time-velocity integral remained less than 0.2 in the athletes and increased more than 0.2 in the pulmonary group. Conclusion: Doppler echocardiography can be used to discriminate a flow- versus resistance-mediated mechanism for exercised-induced increase in PASP.

Original languageEnglish (US)
Pages (from-to)270-275
Number of pages6
JournalJournal of the American Society of Echocardiography
Volume20
Issue number3
DOIs
StatePublished - Mar 2007

Fingerprint

Vascular Resistance
Pulmonary Artery
Exercise
Doppler Echocardiography
Blood Pressure
Pressure
Athletes
Lung
Lung Diseases

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

Cite this

The Noninvasive Evaluation of Exercise-induced Changes in Pulmonary Artery Pressure and Pulmonary Vascular Resistance. / Bidart, Chad M.; Abbas, Amr E.; Parish, James M.; Chaliki, Hari P; Moreno, Carlos A.; Lester, Steven Jay.

In: Journal of the American Society of Echocardiography, Vol. 20, No. 3, 03.2007, p. 270-275.

Research output: Contribution to journalArticle

@article{ea96d12bd1dc4abfbeb177fd547a275e,
title = "The Noninvasive Evaluation of Exercise-induced Changes in Pulmonary Artery Pressure and Pulmonary Vascular Resistance",
abstract = "Background: During exercise, pulmonary artery systolic pressure (PASP) may increase. The purpose of this study was to examine the responses of PASP and pulmonary vascular resistance by Doppler echocardiography during exercise in conditioned athletes and in patients with pulmonary disease. Methods: Fifteen participants in each group were evaluated using Doppler echocardiography at rest and during recumbent bicycle exercise. PASP was calculated using 4 times the tricuspid regurgitant velocity squared (TRV)2 and a surrogate for pulmonary vascular resistance was calculated using the equation: pulmonary vascular resistance = TRV/right ventricular outflow tract time-velocity integral. Results: During exercise, PASP increased in both groups with higher values achieved by patients with pulmonary conditions (54.8 vs 70.6 mm Hg, P = .009). At baseline the ratio TRV/right ventricular outflow tract time-velocity integral was 0.2 or less in both the athlete and pulmonary groups. During exercise, the ratio of TRV/right ventricular outflow tract time-velocity integral remained less than 0.2 in the athletes and increased more than 0.2 in the pulmonary group. Conclusion: Doppler echocardiography can be used to discriminate a flow- versus resistance-mediated mechanism for exercised-induced increase in PASP.",
author = "Bidart, {Chad M.} and Abbas, {Amr E.} and Parish, {James M.} and Chaliki, {Hari P} and Moreno, {Carlos A.} and Lester, {Steven Jay}",
year = "2007",
month = "3",
doi = "10.1016/j.echo.2006.08.032",
language = "English (US)",
volume = "20",
pages = "270--275",
journal = "Journal of the American Society of Echocardiography",
issn = "0894-7317",
publisher = "Mosby Inc.",
number = "3",

}

TY - JOUR

T1 - The Noninvasive Evaluation of Exercise-induced Changes in Pulmonary Artery Pressure and Pulmonary Vascular Resistance

AU - Bidart, Chad M.

AU - Abbas, Amr E.

AU - Parish, James M.

AU - Chaliki, Hari P

AU - Moreno, Carlos A.

AU - Lester, Steven Jay

PY - 2007/3

Y1 - 2007/3

N2 - Background: During exercise, pulmonary artery systolic pressure (PASP) may increase. The purpose of this study was to examine the responses of PASP and pulmonary vascular resistance by Doppler echocardiography during exercise in conditioned athletes and in patients with pulmonary disease. Methods: Fifteen participants in each group were evaluated using Doppler echocardiography at rest and during recumbent bicycle exercise. PASP was calculated using 4 times the tricuspid regurgitant velocity squared (TRV)2 and a surrogate for pulmonary vascular resistance was calculated using the equation: pulmonary vascular resistance = TRV/right ventricular outflow tract time-velocity integral. Results: During exercise, PASP increased in both groups with higher values achieved by patients with pulmonary conditions (54.8 vs 70.6 mm Hg, P = .009). At baseline the ratio TRV/right ventricular outflow tract time-velocity integral was 0.2 or less in both the athlete and pulmonary groups. During exercise, the ratio of TRV/right ventricular outflow tract time-velocity integral remained less than 0.2 in the athletes and increased more than 0.2 in the pulmonary group. Conclusion: Doppler echocardiography can be used to discriminate a flow- versus resistance-mediated mechanism for exercised-induced increase in PASP.

AB - Background: During exercise, pulmonary artery systolic pressure (PASP) may increase. The purpose of this study was to examine the responses of PASP and pulmonary vascular resistance by Doppler echocardiography during exercise in conditioned athletes and in patients with pulmonary disease. Methods: Fifteen participants in each group were evaluated using Doppler echocardiography at rest and during recumbent bicycle exercise. PASP was calculated using 4 times the tricuspid regurgitant velocity squared (TRV)2 and a surrogate for pulmonary vascular resistance was calculated using the equation: pulmonary vascular resistance = TRV/right ventricular outflow tract time-velocity integral. Results: During exercise, PASP increased in both groups with higher values achieved by patients with pulmonary conditions (54.8 vs 70.6 mm Hg, P = .009). At baseline the ratio TRV/right ventricular outflow tract time-velocity integral was 0.2 or less in both the athlete and pulmonary groups. During exercise, the ratio of TRV/right ventricular outflow tract time-velocity integral remained less than 0.2 in the athletes and increased more than 0.2 in the pulmonary group. Conclusion: Doppler echocardiography can be used to discriminate a flow- versus resistance-mediated mechanism for exercised-induced increase in PASP.

UR - http://www.scopus.com/inward/record.url?scp=33847249917&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847249917&partnerID=8YFLogxK

U2 - 10.1016/j.echo.2006.08.032

DO - 10.1016/j.echo.2006.08.032

M3 - Article

C2 - 17336753

AN - SCOPUS:33847249917

VL - 20

SP - 270

EP - 275

JO - Journal of the American Society of Echocardiography

JF - Journal of the American Society of Echocardiography

SN - 0894-7317

IS - 3

ER -