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Setting things "right": right internal mammary artery on anomalous right coronary artery - a case report.

ABSTRACT: Anomalous aortic origin of a coronary artery (AAOCA) is a rare pathology that may cause episodic ischemia owing to possible vessel compression during systolic expansion of the aortic root. This anomaly can lead to myocardial infarction, malignant arrhythmias and sudden cardiac death (SCD). Several surgical techniques have been described; however, there are no defined guidelines regarding the treatment of AAOCA. We report the case of a 47-year-old woman with ectopic origin of the right coronary artery (RCA) from the left sinus of Valsalva, with an interarterial course of the proximal segment of the artery, running between the aorta and the pulmonary trunk. Revascularization was accomplished by harvesting the right internal mammary artery (RIMA) and anastomosing it to the anomalous RCA, given the small portion of the RCA following an intramural course and our familiarity with the procedure. The RCA was ligated proximal to the anastomosis to avoid the string sign phenomenon. This procedure is safe and fast and can be considered an alternative to coronary reconstruction.

SUBMITTER: D'Abramo M

PROVIDER: S-EPMC8573513 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature

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Setting things "right": right internal mammary artery on anomalous right coronary artery - a case report.

D'Abramo M M Saltarocchi S S Saade W W Chourda E E De Orchi P P Miraldi F F

The Journal of international medical research 20211101 11

Anomalous aortic origin of a coronary artery (AAOCA) is a rare pathology that may cause episodic ischemia owing to possible vessel compression during systolic expansion of the aortic root. This anomaly can lead to myocardial infarction, malignant arrhythmias and sudden cardiac death (SCD). Several surgical techniques have been described; however, there are no defined guidelines regarding the treatment of AAOCA. We report the case of a 47-year-old woman with ectopic origin of the right coronary a ...[more]

PMID: 34738476

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Project description:Anomalous right coronary artery from pulmonary artery (ARCAPA) is one of four known anomalies of the coronary arteries originating from the pulmonary artery. ARCAPA is a rare congenital anomaly that is associated with possible long-term complications including myocardial ischemia and left ventricular dysfunction. Clinical presentation can vary from asymptomatic murmur to angina, dyspnea, fatigue, congestive heart failure, myocardial infarction and even cardiac arrest. We present a case of a 52-year-old male who presented to the hospital for intermittent chest pain. The patient was vitally stable and examination was unremarkable. Upon workup, electrocardiogram (EKG) on admission showed no acute ischemic changes and troponin were <0.03 ng/mL. The patient was evaluated by cardiology and had a dobutamine stress echocardiogram (ECHO) for ischemic evaluation. During the recovery phase of dobutamine stress ECHO, the patient reported having 10/10 chest pain with a drop in blood pressure to 90 mmHg systolic. He was subsequently given sublingual nitroglycerin and fluids. Pain did resolve and blood pressure improved after treatment. No wall motion abnormalities were noted on ECHO, but there were inferior ST depressions on EKG during the stress portion of the test. The patient had repeated blood work after the stress test which showed an elevated troponin level of 0.08 ng/mL. The patient was taken to the catheterization lab for diagnostic coronary angiogram. Cardiac catheterization showed a right coronary artery (RCA) arising from the pulmonary artery and diagnosis of isolated ARCAPA was made because of his intermittent chest pain. No intervention was performed as no significant lesions were found. The patient was started on medical therapy including aspirin, beta blocker and statin. The patient did not want to pursue surgery at that point and he did not want any further intervention. He was discharged home with instructions to follow up with cardiology in an outpatient setting to be referred for surgical repair. The purpose of writing this case is to increase awareness among physicians to be able to recognize possible anomalous coronary artery origins during cardiac catheterization and to understand the risk of long-term complications of ARCAPA and need for surgical repair.

Dataset Information

Setting things "right": right internal mammary artery on anomalous right coronary artery - a case report.

Publications

Setting things "right": right internal mammary artery on anomalous right coronary artery - a case report.

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