Rev. Bras. Cardiol. Invasiva.2017;25(1-4):12-5.

Right coronary artery anomaly originating in the contralateral sinus of Valsalva interpreted by the angiographic rapid identification method

Fernando Roberto de Fazzio, Fernando Matheus, Carlos M. Campos, Adriano Ossuna Tamazato, Gabriel Dodo Buchler, Santiago Raul Arrieta, José Mariani, Pedro A. Lemos

DOI: 10.31160/JOTCI2017;25(1-4)A0004

ABSTRACT

Background:

This study aimed to determine the correspondence between the anterior dot sign at the angiography and the malignant interarterial course, defined by the gold standard coronary angiography (angio-CT), in individuals with right coronary artery originating in the contralateral sinus of Valsalva.

Methods:

This was an observational, retrospective, and single-center study. All individuals who had both coronary angio-CT and invasive coronary angiography (ICA), and a diagnosis of right coronary artery anomaly originating in the contralateral sinus of Valsalva were screened. ICA images were retrieved and analyzed for angiographic findings, searching for the presence of the anterior dot sign, characteristic of the interarterial course.

Results:

Between January 2010 and April 2015, 1,410 patients who underwent angio-CT and ICA were identified. Of these, 13 patients (0.92%) had a diagnosis of right coronary anomaly originating in the contralateral sinus of Valsalva. The mean age was 59.6 ± 18.3 years, and 61.5% were males. In all 13 cases, the right coronary artery originating in the left coronary sinus showed an interarterial course (between the aorta and the pulmonary trunk) at the angio-CT. In all cases with appropriate acquisition (9/13), the ICA showed the presence of the anterior dot sign.

Conclusions:

The presence of the anterior dot sign at the ICA confirmed the interarterial course of the right coronary artery originating in the contralateral sinus of Valsalva.

Right coronary artery anomaly originating in the contralateral sinus of Valsalva interpreted by the angiographic rapid identification method

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