Doppler Tissue Imaging During Supine and Upright Exercise in Healthy Adults

Reuss, Christina S.; Moreno, Carlos A.; Appleton, Christopher P.; Lester, Steven J.

doi:10.1016/j.echo.2005.05.012

Cited by 14 publications

(17 citation statements)

References 13 publications

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“…In healthy subjects, TDE parameters increase significantly between rest and exercise. 7,8 In our study, the increase was often significant but nevertheless smaller than in healthy subjects. 7 Pioneer studies by Bonow et al in the early 1980-ies showed that preoperative EF exercise response was not of prognostic importance for postoperative survival in AR patients.…”

Section: Exercise Echocardiographycontrasting

confidence: 41%

“…8 Especially in the anterior and lateral walls, echocardiographic images of dissatisfactory 16 quality have been regarded as missing data. Missing data in these cases have been replaced by the mean values.…”

Section: Limitationsmentioning

confidence: 99%

“…5,6 Colour TDE has also proven to be a feasible tool for quantitative assessment of LV response to supine exercise. 5,7,8 in regurgitant valvular lesions. 9 Moreover, LV systolic function on exercise has been suggested as an approach to find early signs of LV deterioration in AR patients.…”

Section: Introductionmentioning

confidence: 99%

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Preoperative Longitudinal Left Ventricular Function by Tissue Doppler Echocardiography at Rest and During Exercise Is Valuable in Timing of Aortic Valve Surgery in Male Aortic Regurgitation Patients

Helin

Tamás

Nylander

2010

Journal of the American Society of Echocardiography

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Aim: To evaluate if left ventricular (LV) systolic function by tissue DopplerEchocardiography (TDE) at rest and exercise preoperatively, could predict postoperative LV function and thereby be useful in timing of aortic valve surgery in patients with severe aortic regurgitation (AR). Methods:In 29 patients (median 59 years, interquartile 39-64) echocardiography, TDE and radionuclide ventriculography were performed pre-and postoperatively, at rest and during supine bicycle exercise.Results: Preoperative EF (ejection fraction) was 62%. Patients formed two groups with basal LV peak systolic velocity (PSV) 5.9 cm/s preoperatively as the cut-off value (Low and High PSV). Preoperatively, Low PSV had lower PSV exercise , EF exercise , atrioventricular plane displacement (AVPD) at rest and upon exercise than High PSV (p<0. 005, p<0.05, p<0.005 and p<0.05). Postoperatively, Low PSV had smaller AVPD rest , AVPD exercise and PSV exercise (p<0.05, p<0.01, p<0.01). Conclusion:In chronic AR patients with EF and LV dimensions not fulfilling criteria for surgery according to guidelines, preoperative PSV and AVPD at rest and upon exercise detected postoperative LV dysfunction.

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Section: Exercise Echocardiographycontrasting

confidence: 41%

Section: Limitationsmentioning

confidence: 99%

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Preoperative Longitudinal Left Ventricular Function by Tissue Doppler Echocardiography at Rest and During Exercise Is Valuable in Timing of Aortic Valve Surgery in Male Aortic Regurgitation Patients

Helin

Tamás

Nylander

2010

Journal of the American Society of Echocardiography

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“…Any change in e= velocity noted secondary to a change in cardiac cycle length is directly related to the transmitral pressure gradient as thus concordant changes in the mitral E-wave velocity are noted (40). The E/e= ratio is a representation of mean LA pressure and can be measured during an echocardiographic stress test (41,42). Mean LA pressure with exercise remains within normal limits in healthy individuals.…”

Section: Diastolic Stress Testmentioning

confidence: 99%

“…Mean LA pressure with exercise remains within normal limits in healthy individuals. Therefore, a measure of the E/e= ratio during aerobic stress may be useful for distinguishing patients with cardiac disease and help to solve the clinical enigma (41)(42)(43)(44). …”

Section: Diastolic Stress Testmentioning

confidence: 99%

Unlocking the Mysteries of Diastolic Function

Lester

Tajik

Nishimura

et al. 2008

Journal of the American College of Cardiology

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314

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It has now been a quarter of a century since the first description by Kitabatake and his associates of the use of echo-Doppler to characterize the transmitral flow velocity curves in various disease states. A decade ago we described the role of echocardiography in the "Evaluation of Diastolic Filling of Left Ventricle in Health and Disease: Doppler Echocardiography Is the Clinician's Rosetta Stone." Over the ensuing decade, advances in echo-Doppler have helped to further decipher the morphologic and physiological expression of cardiovascular disease and unlock additional mysteries of diastology. The purpose of this review is to highlight the developments in echo-Doppler and refinements in our knowledge that have occurred over the past decade that enhance our understanding of diastology.

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Imaging left ventricular tissue mechanics and hemodynamics during supine bicycle exercise using a combined tagging and phase‐contrast MRI pulse sequence

Sampath

Derbyshire

Ledesma-Carbayo

et al. 2010

Magnetic Resonance in Med

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Imaging the left ventricular mechanical and hemodynamic response to the stress of exercise may offer early prognosis in select patients with cardiac disease. Here, we demonstrate the feasibility of obtaining simultaneous measurements of longitudinal strain and transvalvular blood velocity during supine bicycle exercise stress in a wide bore magnetic resonance scanner. Combining information from the two datasets, we observe that although the time to peak strain (33.28 ± 1.86 versus 25.7 ± 2.12 as % of R-R interval) and time to peak mitral inflow velocity (44.37 ± 5.21 versus 35.5 ± 4.19 as % of R-R interval) from R-wave of the QRS complex occurred earlier during stress, the time from peak strain to peak mitral inflow velocity was not statistically different (16.5 ± 3.23 versus 13.4 ± 3.06). Further, the percentage of longitudinal relaxation at peak mitral inflow velocity was higher during stress (63.5 ± 7.72 versus 84.32 ± 6.24). These results suggest that although diastole is shortened, early diastolic filling efficiency is augmented during exercise stress in normal volunteers in an effort to maintain stroke volume.

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Doppler Tissue Imaging During Supine and Upright Exercise in Healthy Adults

Cited by 14 publications

References 13 publications

Preoperative Longitudinal Left Ventricular Function by Tissue Doppler Echocardiography at Rest and During Exercise Is Valuable in Timing of Aortic Valve Surgery in Male Aortic Regurgitation Patients

Preoperative Longitudinal Left Ventricular Function by Tissue Doppler Echocardiography at Rest and During Exercise Is Valuable in Timing of Aortic Valve Surgery in Male Aortic Regurgitation Patients

Unlocking the Mysteries of Diastolic Function

Imaging left ventricular tissue mechanics and hemodynamics during supine bicycle exercise using a combined tagging and phase‐contrast MRI pulse sequence

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