Iatrogenic Anomalous Origin of the Right Pulmonary Artery From the Aorta: A Rare Complication of Ligation of Aortopulmonary Window.

An aortopulmonary window (APW) is a communication between the main pulmonary artery (MPA) and the ascending aorta in the presence of two separate semilunar valves. Surgical strategies described for the management of APW include ligation, division and suturing, patch closure of APW (transaortic or transpulmonary or transwindow), and device closure. Ligation of a type-2 APW can result in stenosis or complete closure of the right pulmonary artery (RPA) off the MPA, while leaving the aorta still opening into the RPA.

Abnormally proximal aortic origin of the brachiocephalic artery: Surgical implications.

Abnormal proximal aortic origin of the brachiocephalic artery is a very rare condition. It can occur in isolation or associated with complex congenital heart disease affecting the right ventricular outflow tract. Its recognition carries relevant surgical implications for the safe conduct of cardiopulmonary bypass and for any surgical procedures that directly involve the proximal ascending aorta and its branches.

The Role of Shunt Occlusion During Extracorporeal Life Support.

Introduction: The current recommendation for systemic to pulmonary artery shunt (SPS) patients requiring extracorporeal life support (ECLS) is to keep the shunt open, maintaining a higher pump flow. The practice in our center is to totally occlude the shunt while on ECLS, and we are presenting the outcome of this strategy.

Methods: This is a retrospective analysis of patients who underwent SPS for cyanotic congenital heart disease with decreased pulmonary blood flow and required postoperative ECLS between January 2016 and December 2020.

Harlequin effect and central veno-arterial extracorporeal life support.

"Harlequin effect" may be observed in the watershed region of a patient with pulmonary dysfunction, receiving peripheral veno-arterial extracorporeal membrane oxygenation via the femoral vessels. In such cases, retrograde oxygenated blood from the peripheral inflow cannula converges with the antegrade deoxygenated blood ejected from the left ventricle. This occurs when the left ventricle is ejecting significantly but the recovery of pulmonary function lags behind.

R1441C and G2019S LRRK2 knockin mice have distinct striatal molecular, physiological, and behavioral alterations.

LRRK2 mutations are closely associated with Parkinson's disease (PD). Convergent evidence suggests that LRRK2 regulates striatal function. Here, by using knock-in mouse lines expressing the two most common LRRK2 pathogenic mutations-G2019S and R1441C-we investigated how LRRK2 mutations altered striatal physiology.