Ergospirometry and Echocardiography in Early Stage of Heart Failure with
Preserved Ejection Fraction and in Healthy Individuals |
| |
Authors: | Eduardo Lima Garcia Márcio Garcia Menezes Charles de Moraes Stefani Luiz Cláudio Danzmann Marco Antonio Rodrigues Torres |
| |
Institution: | 1.Universidade Federal do Rio Grande do Sul, Canoas, RS - Brazil;2.Hospital de Clínicas de Porto Alegre, Porto Alegre, RS;3.Universidade Luterana do Brasil, Canoas, RS - Brazil |
| |
Abstract: | BackgroundHeart failure with preserved ejection fraction is a syndrome characterized by
changes in diastolic function; it is more prevalent among the elderly, women, and
individuals with systemic hypertension (SH) and diabetes mellitus. However, in its
early stages, there are no signs of congestion and it is identified in tests by
adverse remodeling, decreased exercise capacity and diastolic dysfunction.ObjectiveTo compare doppler, echocardiographic (Echo), and cardiopulmonary exercise test
(CPET) variables - ergospirometry variables - between two population samples: one
of individuals in the early stage of this syndrome, and the other of healthy
individuals.MethodsTwenty eight outpatients diagnosed with heart failure according to Framingham’s
criteria, ejection fraction > 50% and diastolic dysfunction according to the
european society of cardiology (ESC), and 24 healthy individuals underwent Echo
and CPET.ResultsThe group of patients showed indexed atrial volume and left ventricular mass as
well as E/E’ and ILAV/A´ ratios significantly higher, in addition to a significant
reduction in peak oxygen consumption and increased VE/VCO2 slope, even
having similar left ventricular sizes in comparison to those of the sample of
healthy individuals.ConclusionThere are significant differences between the structural and functional variables
analyzed by Echo and CPET when comparing two population samples: one of patients
in the early stage of heart failure with ejection fraction greater than or equal
to 50% and another of healthy individuals. |
| |
Keywords: | Spirometry Echocardiography Failure Stroke Volume Outpatients |
|
|