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Vol. 72. Issue 5.
Pages 416 (May 2019)
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Vol. 72. Issue 5.
Pages 416 (May 2019)
Image in cardiology
DOI: 10.1016/j.rec.2018.04.016
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Bubble Contrast Echocardiography for Alcohol Septal Ablation
Ecocardiograma de contraste con burbujas en ablación septal con alcohol
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Eduardo A. Arias
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laloarias@gmail.com

Corresponding author:
, Marco Antonio Peña-Duque, Marco Antonio Martínez-Ríos
Intervención Coronaria y Estructural, Departamento de Cardiología Intervencionista, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City, Mexico
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The injection of a synthetic cardiovascular ultrasound contrast agent in a coronary septal branch has become a mandatory step of alcohol septal ablation in hypertrophic obstructive cardiomyopathy as it determines the septal branch amenable for ablation and the extent of the infarct. Unfortunately, these contrast agents are expensive and not widely available. At the National Institute of Cardiology, we have replaced these agents with a simple, inexpensive and artisanal technique based on the bubble echocardiogram concept for the diagnosis of patent foramen ovale, which involves the injection of a bubbled contrast-saline-air cocktail (3mL of intravascular contrast + 2mL of saline + 1mL of air, shaken in a 3-way-stopcock) in the occluded septal branch. Four different examples showing images before and after injection are shown in the Figure. This bubbled mixture permits proper identification of the septal branch and characterization of the ablation territory. The degree of opacification is at least equal to that achieved with synthetic contrast agents and we have documented no complications related to its use as there is no backflow of bubbles to the left anterior descending artery and the septal branch bubbles drain to the coronary sinus and ultimately to the pulmonary artery. Video 1 of the supplementary material shows the technique and its results. In sum, the use of this simple, artisanal and affordable contrast technique is a feasible alternative for septal ablation in places where synthetic contrast agents are not available. To our knowledge, there are no previous reports of this contrast technique for alcohol septal ablation.

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Copyright © 2018. Sociedad Española de Cardiología
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