Usefulness of dobutamine stress echocardiography with Tissue Doppler imaging for the evaluation and follow-up of patients with repaired tetralogy of Fallot

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
Stella BriliChristodoulos Stefanadis

Abstract

The longstanding pulmonary regurgitation in patients with repaired tetralogy of Fallot (RTOF) results in right ventricular (RV) failure. The estimation of RV function and reserve in these patients is of great importance, especially for the determination of the proper timing of pulmonary valve replacement. Tissue Doppler imaging (TDI) of the tricuspid annulus has been proved a valuable tool in the evaluation of these patients. Dobutamine stress echocardiography (DSE) in low doses detects the contractility reserve of cardiac myocytes. The aim of our study was to estimate RV reserve in patients with RTOF with the use of DSE and TDI and to examine whether this is related to baseline TDI indices of the tricuspid annulus. We studied 21 patients with RTOF and 21 age- and gender-matched controls with TDI Doppler at the tricuspid annulus during DSE. TDI measurements were made at baseline and at infusion rates of 10 and 20 microg x kg x min. Patients with RTOF had lower values of TDI indices at baseline and during dobutamine infusion and smaller dobutamine-induced increase of Sa (DeltaSa) (3.8 +/- 1.2 vs. 10.8 +/- 3.6 cm/sec, P < .001) and Aa (3.5 +/- 2.2 vs. 10.0 +/- 3.2 cm/sec, P < .001). A value of DeltaSa < or = 6 cm/sec clearly disc...Continue Reading

References

Aug 26, 1993·The New England Journal of Medicine·J G MurphyG K Danielson
Dec 13, 2000·The American Journal of Cardiology·M A GatzoulisP R McLaughlin
Jan 12, 2001·Journal of the American College of Cardiology·S F NaguehD S Khoury
Apr 20, 2004·International Journal of Cardiology·A D'AndreaRaffaele Calabrò
Jul 30, 2004·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Kenji HaradaFumio Yamamoto
Nov 9, 2005·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Stella BriliChristodoulos Stefanadis
Nov 25, 2005·Diabetes & Vascular Disease Research : Official Journal of the International Society of Diabetes and Vascular Disease·Helene Von BibraLars Rydén
Jul 1, 2006·The International Journal of Cardiovascular Imaging·Sotiria C ApostolopoulouSpyridon Rammos

❮ Previous
Next ❯

Citations

Oct 24, 2009·Cardiology in the Young·Daniëlle Robbers-VisserWillem A Helbing
Aug 11, 2012·The Korean Journal of Thoracic and Cardiovascular Surgery·Tom R Karl
Sep 28, 2014·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Lamia Ait-AliPierluigi Festa
Jul 24, 2010·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Maria Cecília Knoll FarahVera Demarchi Aiello
May 19, 2011·Journal of Magnetic Resonance Imaging : JMRI·Israel ValverdePhilipp Beerbaum
Jul 19, 2012·International Journal of Cardiology·Stella BriliChristodoulos Stefanadis
Jan 20, 2017·Cardiovascular Ultrasound·Eugenio PicanoPaolo Colonna
Jan 10, 2018·Congenital Heart Disease·Clotilde KingsleyGruschen Veldtman
Aug 26, 2010·Current Opinion in Pediatrics·Willem A HelbingDaniëlle Robbers-Visser

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cardiomyopathy

Cardiomyopathy is a disease of the heart muscle, that can lead to muscular or electrical dysfunction of the heart. It is often an irreversible disease that is associated with a poor prognosis. There are different causes and classifications of cardiomyopathies. Here are the latest discoveries pertaining to this disease.