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CorSalud
versión On-line ISSN 2078-7170
Resumen
PUGA BRAVO, Marcelo V. y GALLARDO MEDINA, Yisel. Importance of atrioventricular synchrony for cardiac output in a patient with heart failure and reduced ejection fraction. CorSalud [online]. 2019, vol.11, n.1, pp.75-78. ISSN 2078-7170.
An 80-year-old male patient is presented, with previous dilated cardiomyopathy of ischemic etiology, with systo-diastolic left ventricular dysfunction, who initially presented atrial flutter and hemodynamic instability, thus, an electrical cardioversion was performed. After this procedure, a blocked atrial fibrillation was observed. Thus, an external pacemaker was placed. During the evolution, a 12 lead electrocardiogram was performed, showing permanent ventricular stimulation with retrograde conduction (ventriculo-atrial). The pacing rate was diminished for prioritizing the patient’s spontaneous rhythm resulting in an improvement of the blood pressure curve.
Palabras clave : Heart conduction system; Retrograde conduction; Atrial function; Artificial cardiac pacing; Pacemaker syndrome.