open access

Vol 16, No 1 (2009)
Original articles
Published online: 2008-11-28
Get Citation

Utility of the dobutamine stress echocardiography in the evaluation of the effects of a surgical repair of aortic coarctation in children

Paweł Banaszak, Małgorzata Szkutnik, Jacek Kusa, Beata Banaszak, Jacek Białkowski
Cardiol J 2009;16(1):20-25.

open access

Vol 16, No 1 (2009)
Original articles
Published online: 2008-11-28

Abstract

Background: Exercise-induced hypertension following repair of the coarctation of the aorta (CoA) is a well known phenomenon. The most important functional parameters in the assessment of the effects of a surgical repair of CoA are the maximal pressure gradient in the descending aorta (GRAD) and systolic blood pressure (SBP). Results of treadmill exercise test using the Bruce protocol (treadmill test) and dobutamine stress echocardiography (DSE) were compared to determine utility of the DSE in the evaluation of the effects of surgical treatment of CoA in children.
Methods: The study population comprised of 29 patients, including 20 males and 9 females (mean age 12 years) who underwent a surgical repair of CoA. Changes of the cardiovascular parameters including SBP, GRAD and heart rate (HR) during the treadmill test and DSE were compared.
Results: During the treadmill test, SBP at peak exercise ranged from 120 to 230 (mean 163.7) mm Hg, GRAD ranged from 29 to 109 (mean 59.8) mm Hg, and HR ranged from 140 to 188 (mean 169) bpm. At the end of DSE, SBP ranged from 123 to 215 (mean 164.7) mm Hg, GRAD ranged from 29 to 113 (mean 55.4) mm Hg, and HR ranged from 76 to 155 (mean 111) bpm. We found positive correlations of SBP (r = 0.68, p < 0.001) and GRAD (r = 0.82, p < 0.001) values during both tests but no significant correlation for HR (r = 0.42, p = NS).
Conclusions: Dobutamine stress echocardiography is useful in the evaluation of the effects of surgical repair of CoA in children.

Abstract

Background: Exercise-induced hypertension following repair of the coarctation of the aorta (CoA) is a well known phenomenon. The most important functional parameters in the assessment of the effects of a surgical repair of CoA are the maximal pressure gradient in the descending aorta (GRAD) and systolic blood pressure (SBP). Results of treadmill exercise test using the Bruce protocol (treadmill test) and dobutamine stress echocardiography (DSE) were compared to determine utility of the DSE in the evaluation of the effects of surgical treatment of CoA in children.
Methods: The study population comprised of 29 patients, including 20 males and 9 females (mean age 12 years) who underwent a surgical repair of CoA. Changes of the cardiovascular parameters including SBP, GRAD and heart rate (HR) during the treadmill test and DSE were compared.
Results: During the treadmill test, SBP at peak exercise ranged from 120 to 230 (mean 163.7) mm Hg, GRAD ranged from 29 to 109 (mean 59.8) mm Hg, and HR ranged from 140 to 188 (mean 169) bpm. At the end of DSE, SBP ranged from 123 to 215 (mean 164.7) mm Hg, GRAD ranged from 29 to 113 (mean 55.4) mm Hg, and HR ranged from 76 to 155 (mean 111) bpm. We found positive correlations of SBP (r = 0.68, p < 0.001) and GRAD (r = 0.82, p < 0.001) values during both tests but no significant correlation for HR (r = 0.42, p = NS).
Conclusions: Dobutamine stress echocardiography is useful in the evaluation of the effects of surgical repair of CoA in children.
Get Citation

Keywords

coarctation of the aorta; dobutamine stress echocardiography; treadmill exercise stress test

About this article
Title

Utility of the dobutamine stress echocardiography in the evaluation of the effects of a surgical repair of aortic coarctation in children

Journal

Cardiology Journal

Issue

Vol 16, No 1 (2009)

Pages

20-25

Published online

2008-11-28

Bibliographic record

Cardiol J 2009;16(1):20-25.

Keywords

coarctation of the aorta
dobutamine stress echocardiography
treadmill exercise stress test

Authors

Paweł Banaszak
Małgorzata Szkutnik
Jacek Kusa
Beata Banaszak
Jacek Białkowski

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By "Via Medica sp. z o.o." sp.k., ul. Świętokrzyska 73, 80–180 Gdańsk, Poland
tel.:+48 58 320 94 94, fax:+48 58 320 94 60, e-mail: viamedica@viamedica.pl