Challenging Diagnosis of Anomalous Origin of the Right Coronary Artery from the Pulmonary Artery.

Anomalous origin of the right coronary artery (RCA) from the pulmonary artery, ARCAPA, is an extremely rare congenital heart disease. Only 200 cases were reported from 1885 to the present. Patients diagnosed with ARCAPA can be either asymptomatic or can experience symptoms, such as heart murmur, dyspnea, or angina, shortly after birth or around 40-60 years of life. Usually, those with isolated ARCAPA are diagnosed later in life compared to those who associate other structural cardiac defects. We report two cases of anomalous origin of the right coronary artery at the level of the pulmonary artery trunk (ARCAPA) that were diagnosed by invasive coronary angiography. Although asymptomatic, general recommendations suggest an early corrective intervention to prevent complications such as myocardial ischemia and cardiac dysfunction, which can lead to sudden cardiac death.

Ductus Arteriosus Stenting in Newborns - Transcatheter Approach as a Bridge Therapy for Corrective Surgery.

Duct-dependent congenital heart disease requires attentive therapeutic management since the only source of pulmonary blood flow in newborns is provided by the patent ductus arteriosus. The patency of the duct is the main objective in the first hours of life and it is guaranteed by prostaglandin E1 infusion, but it is not a long-term solution for this type of cardiac malformation. In order to augment pulmonary blood, there are two types of interventions that can be performed: a classical surgical shunt or stenting of the ductus arteriosus, a fairly new alternative to cardiac palliative surgery. Case selection for this type of procedure is essential regarding the patients' outcome. We present the management of a newborn diagnosed with (pseudo)atretic pulmonary valve, large ventricular septal defect and patent ductus arteriosus, who underwent an interventional procedure to secure pulmonary blood flow by placing a drug-eluting stent in the ductus arteriosus. The patient's evolution was not uneventful, several complications appeared, but after three months of neonatal intensive care we were able to discharge him in good clinical condition.

Myocardial Infarction in Children after COVID-19 and Risk Factors for Thrombosis.

Acute myocardial infarction (AMI) in children is rather anecdotic. However, following COVID-19, some conditions may develop which may favor thrombosis, myocardial infarction, and death. Such a condition is Kawasaki-like disease (K-lD). K-lD appears in children as a subgroup of the multisystem inflammatory syndrome (MIS-C). In some cases, K-lD patients may develop giant coronary aneurysms. The evolution and characteristics of coronary aneurysms from K-lD appear to be different from classical Kawasaki disease (KD) aneurysms. Differences include a lower percentage of aneurysm formation than in non-COVID-19 KD, a smaller number of giant forms, a tendency towards aneurysm regression, and fewer thrombotic events associated with AMI. We present here a review of the literature on the thrombotic risks of post-COVID-19 coronary aneurysms, starting from a unique clinical case of a 2-year-old boy who developed multiple coronary aneurysms, followed by AMI. In dehydration conditions, 6 months after COVID-19, the boy developed anterior descending artery occlusion and a slow favorable outcome of the AMI after thrombolysis. This review establishes severity criteria and risk factors that predispose to thrombosis and AMI in post-COVID-19 patients. These may include dehydration, thrombophilia, congenital malformations, chronic inflammatory conditions, chronic kidney impairment, acute cardiac failure, and others. All these possible complications should be monitored during acute illness. Ischemic heart disease prevalence in children may increase in the post-COVID-19 era, due to an association between coronary aneurysm formation, thrombophilia, and other risk factors whose presence will make a difference in long-term prognosis.