Key result
Dobutamine stress echocardiography after the Ross procedure demonstrated normal pulmonary autograft hemodynamics (mean gradient 1.03 to 4.03 mmHg), but mild-to-moderate gradients in RVOT homografts.
Why the study?
Does the pulmonary autograft maintain normal hemodynamic performance during dobutamine stress after the Ross procedure?
Population
20 patients who underwent a Ross operation, mean age 28.6+/-8.3 years, mean follow-up time 15.7+/-5.9 months.
Comparison
Dobutamine stress echocardiography to evaluate… vs Resting hemodynamics.
Design
Cohort
Follow-up
mean 15.7+/-5.9 months
Authors
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Supports normal autograft stress performance post-Ross; leaves open long-term RVOT homograft implications.
Observational (n=20)
No
Does the pulmonary autograft maintain normal hemodynamic performance during dobutamine stress after the Ross procedure?
Pulmonary autografts exhibit excellent hemodynamic performance during dobutamine stress after the Ross procedure, though mild-to-moderate gradients develop across the right ventricular outflow tract homograft.
Costa et al. (2010) conducted an observational in Post-Ross procedure (n=20). Dobutamine stress echocardiography vs. Rest was evaluated on Hemodynamic performance of pulmonary autografts and homografts. Dobutamine stress echocardiography after the Ross procedure demonstrated normal pulmonary autograft hemodynamics (mean gradient 1.03 to 4.03 mmHg), but mild-to-moderate gradients in RVOT homografts.
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