Abstract

FLORIO, Lucía et al. Persistencia de alteraciones humorales y hemodinámicas asociadas con mejoría de la función vascular en pacientes con insuficiencia cardíaca que normalizaron la función sistólica. Insuf. card. [online]. 2013, vol.8, n.3, pp.103-111. ISSN 1852-3862.

Persistence of humoral and hemodynamic alterations associated with improved vascular function in heart failure patients with systolic function normalizedBackground. Heart failure due to systolic dysfunction is defined by the reduction in left ventricular ejection fraction. Its treatment can lead to an improvement in left ventricular ejection fraction, but, if its normalization is associated with an improvement of altered parameters in heart failure or not, remains to be clarified. Objectives. To evaluate the normalization of parameters that can define remission. To compare vascular, hemodynamic, humoral, echocardiographic and clinical parameters in patients with heart failure due to systolic dysfunction, among a group of patients who normalized left ventricular ejection fraction with those with left ventricular ejection fraction lower. Materials and methods. A cohort of 395 patients with systolic dysfunction was studied. Group 1 was defined by patients with left ventricular ejection fraction ≥ 55% in last clinical control. Group 2 was defined by randomized controls with persistent ejection fraction < 55%. Remission was defined by the association of ejection fraction ≥55%, functional class I, NT-proBNP < 135 pg/ml, cardiac index ≥ 2.2 L/min/m² and vascular systemic resistance ≤ 1200 dynes.sec.cm^-5. These indicators as well as others were measured and compared between the two groups. Results. None of the patients achieved remission criteria. There was a predominance of ischemic cardiopathy in group 1 (p=0.01). Significative differences in favor of group 1 were detected in last control in: left ventricular ejection fraction, pulmonary artery pressure, functional class and hemodynamic parameters obtained by reflection wave. Heart rate was lower in group 1, a high number of patients were taking loop diuretics in group 2. The rest of the parameters did not show differences. Conclusion. According to defined criteria, there was no remission in this cohort. Functional class and hemodynamic parameters obtained by reflection wave accompanied improvement. Non-ischemic cardiopathy associates with higher possibilities of ejection fraction normalization.

Keywords : Heart failure; Systolic dysfunction; Remission; Arterial function.

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