Why the study?
Does the presence of LBBB affect cardiovascular performance on cardiopulmonary exercise testing in patients with preserved LVEF?
Does the presence of LBBB affect cardiovascular performance on cardiopulmonary exercise testing in patients with preserved LVEF?
In patients with preserved LVEF, the presence of LBBB is associated with an increased VE/VCO2 slope and reduced peak VO2 on cardiopulmonary exercise testing, indicating subclinical impairment in cardiovascular performance.
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LBBB may affect performance despite preserved LVEF; leaves open its prognostic role pending larger studies.
Campos et al. (2017) studied this question.
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