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Left ventricular pseudoaneurysm (LV-PSA) is a rare complication in children, usually developing after cardiac surgery, percutaneous procedures, infections, or trauma. Herein, we report a case of large basal submitral LV-PSA in a 36-day-old baby, detected 26 days after cardiac operation for hypoplastic arch, aortic coarctation, and small ventricular septal defect. No complications occurred in the first postoperative course, and early postoperative echocardiograms were normal. Despite large dimension of pseudoaneurysm, the baby presented with only mild tachypnea. The baby was successfully operated. Pseudoaneurysm, besides rare, could have an extremely broad and insidious clinical presentation and had to be considered in post-cardiac surgery follow-up echocardiogram at any time lapse., Competing Interests: There are no conflicts of interest., (Copyright: © 2022 Annals of Pediatric Cardiology.)

The persistence of the fifth aortic arch (PFAA) in postnatal life is an extremely rare and controversial cardiovascular malformation. PFAA is defined as an extra-pericardial vessel arising from the ascending aorta proximal to the origin of the brachiocephalic arteries, terminating either in the dorsal aorta or in the pulmonary arteries through the persistently patent arterial duct. An isolated PFAA with systemic-to-pulmonary connection best fits this definition, while the vast majority of cases reported as PFAA may have alternative embryological explanations. We present a unique case of a 5-week-old patient with an isolated PFAA with systemic-to-pulmonary connection, who presented with congestive heart failure. A first differential diagnosis was made with distal aortopulmonary window and an atypical patent arterial duct. A careful analysis of the case and a systematic review of the literature made us conclude for an isolated PFAA, which is one of the only five cases ever reported., Competing Interests: There are no conflicts of interest., (Copyright: © 2019 Annals of Pediatric Cardiology.)

Balloon angioplasty may be performed as the first treatment of aortic coarctation to stabilize newborns too sick for immediate surgery. The issue of vascular access is the key to the successful treatment of critical newborns. In our study, we argue that the lesser-known axillary access route is the safest and most effective route of vascular access for balloon angioplasty in infants with aortic coarctation. To support this argument, we present the case of eight unstable newborns with complex heart diseases, who were successfully treated with percutaneous intervention through the axillary artery. This case series is followed by an analysis of the greater efficacy of this technique compared to the more conventional femoral and carotid routes. We conclude by acknowledging the substantial advantages of this lesser-known vascular access and advocate its more widespread clinical implementation in the treatment of critical newborns., Competing Interests: There are no conflicts of interest., (Copyright: © 2019 Annals of Pediatric Cardiology.)