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Insuficiencia cardíaca

On-line version ISSN 1852-3862


PORCILE, Rafael; LEVIN, Ricardo; PEREZ BAZTARRICA, Gabriel  and  BOTBOL, Alejandro. Ivabradina como apoyo a la contrapulsación aórtica en pacientes con insuficiencia cardíaca avanzada. Insuf. card. [online]. 2020, vol.15, n.3, pp.64-69. ISSN 1852-3862.

Background. Patients with advanced heart failure (HF) under inotropic treatment tend to sinus tachycardia, mainly due to: 1) neuroendocrine compensatory effect, 2) pharmacological effect, 3) impossibility of using beta-blockers because they interfere with the inotropic effect. Objectives. To evaluate the hemodynamic effect of ivabradine on sinus tachycardia during the treatment of advanced HF under aortic balloon pump using pulmonary catheterization. Material and methods. Between January 1, 2014 and May 1, 2020, all patients admitted to the critical cardiology area for acute HF of ischemic-necrotic etiology refractory to oral pharmacological treatment and indication of inotropic drugs and aortic balloon pump were prospectively included, in sinus rhythm with more than 110 beats per minute (bpm) of heart rate. Results. The study included 55 patients (33 men) with a mean age of 61.9 years. Post-treatment with ivabradine, the heart rate decreased from 118±5 bpm to 93±8 bpm (p=0.0002), the cardiac minute volume increased from 4637±610 ml to 5176±527 ml (p=0.03) and mean stroke volume increased significantly from 39.29±5.2 to 55.65±7.7 ml (p=0.002). No significant differences were observed before and after treatment in the recordings of the pressures of the right atrium or in the pulmonary capillary pressures, as well as in the calculations of systemic and pulmonary vascular resistance. No adverse effects of the drugs were observed until five half-lives after stopping it. Conclusions. Ivabradine improves the effectiveness of aortic balloon pump evaluated by means of a Swan Ganz catheter in patients with advanced HF treated with inotropic agents.

Keywords : Ivabradine; Advanced heart failure; Aortic balloon pump; Sinus tachycardia; Pulmonary catheterization; Inotropic treatment.

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