Importance of atrioventricular synchrony for cardiac output in a patient with heart failure and reduced ejection fraction

Authors

  • Marcelo V. Puga Bravo Instituto de Cardiología y Cirugía Cardiovascular (ICCCV) La Habana
  • Yisel Gallardo Medina Instituto de Cardiología y Cirugía Cardiovascular (ICCCV) La Habana, Cuba

Abstract

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.

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Author Biography

Marcelo V. Puga Bravo, Instituto de Cardiología y Cirugía Cardiovascular (ICCCV) La Habana

Servicio de Cardiología

Instituto de Cardiología y Cirugía Cardiovascular. La Habana-Cuba

References

1. Swerdlow CD, Wang PJ, Zipes DP. Marcapasos y desfibriladores automáticos implantables. En: Mann DL, Zipes DP, Libby P, Bonow RO, eds. Braunwald. Tratado de Cardiología. Texto de Medicina Cardiovascular. Philadelphia: Elsevier; 2016. p. 721-47.

2. Wiggers CJ, Katz LN. The contour of the ventricular volume curves under different conditions. Am J Physiol. 1922;58:439-75.

3. Erlebacher JA, Danner RL, Stelzer PE. Hypotension with ventricular pacing: an atria vasodepressor reflex in human beings. J Am Coll Cardiol. 1984;4(3):550-5.

4. Rene A, Généreux P, Ezekowitz M, Kirtane D, Xu K, Mehran R, et al. Impact of atrial fibrillation in patients with ST-elevation myocardial infarction treated with percutaneous coronary intervention (from the HORIZONS-AMI [Harmonizing Outcomes With Revascularization and Stents in Acute Myocardial Infarction] trial). Am J Cardiol. 2014;113(2):236-42.

5. Romero JD, Lezáun R, Maraví C, Ruiz V, García J, de los Arcos E. Relación entre la sincronía auriculoventricular y la presión sistémica. Rev Esp Cardiol. 2001;54(2):234-5.

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Published

2019-01-03

How to Cite

1.
Puga Bravo MV, Gallardo Medina Y. Importance of atrioventricular synchrony for cardiac output in a patient with heart failure and reduced ejection fraction. CorSalud [Internet]. 2019 Jan. 3 [cited 2025 Jun. 23];11(1):75-8. Available from: https://revcorsalud.sld.cu/index.php/cors/article/view/348

Issue

Vol. 11 No. 1 (2019)

Section

CASE REPORTS

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