Como saber se o tratamento da insuficiência cardíaca é eficaz

Heart failure is a disease that progresses with high morbidity and mortality, but the correct treatment using neurohormonal inhibitors could alter its natural history. Although more and more patients have been treated, drugs are sometimes prescribed at doses lower than those known to be effective. In heart failure, a marker of treatment efficacy is lacking, since symptomatic improvement does not indicate that the patient will remain stable in the long term. The aim of this study was to evaluate the need for a marker of improvement during treatment. Reverse remodeling, present in clinical trials of drugs that reduced the mortality of patients with heart failure, is a marker of good response to treatment and can be used as a marker of treatment efficacy. Lack of reverse remodeling is indicative of greater severity of the case or of insufficient treatment. The same is true of the analysis of hemodynamic response when there is a reduction in intracardiac pressures, documenting that the treatment is effective. The persistence of heart rate above 70 bpm is another important marker of poor prognosis, and indicative of the need for treatment optimization. Reverse remodeling, improved ejection fraction, hemodynamic improvement, and reduction in heart rate are markers of treatment efficacy and are followed by significant reduction in mortality, and may be used to guide treatment.