Complex aortic valve repair in congenital patients: clinical feedback.

Introduction: In the congenital population, particularly in young adults, the best strategy for aortic valve surgery has not been clearly established. This study investigates the mortality, perioperative morbidity and echocardiographic evolution of complex aortic valve repair techniques.

Material And Methods: We performed a retrospective monocentric descriptive study of patients operated at the Louis Pradel Hospital (Lyon) from 2017 to 2023.

Heart transplantation in adults with congenital heart diseases: A comprehensive meta-analysis on waiting times, operative, and survival outcomes.

The rising prevalence of congenital heart disease (CHD) among adults has led to increased heart transplantation (HT) procedures in this population. However, CHD patients face significant challenges including longer waiting times, higher early mortality rates, and increased risks of complications such as renal dysfunction. This systematic review and meta-analysis examined 50 studies to assess waiting times, postoperative outcomes, and survival rates in CHD patients undergoing HT compared to non-CHD patients.

Design and Validation of Additively Manufactured Injection Molds.

The injection molding process is only economical with large batch sizes due to expensive tools that cannot be used variably. Additively manufactured tools made of plastic could reduce manufacturing costs and represent an alternative to conventionally manufactured tools for prototype applications as well as enabling small series with the injection molding process. The aim of this article was to examine additively manufactured injection molding tools; to determine their potential in terms of service life, surface quality, and production time; and to link them with the production costs so that the profitability can be assessed.

Collaborative work in a complex case of Fontan for treating intra-atrial reentrant tachycardia and severe aortic stenosis: a case report.

Background: Intra-atrial reentrant tachycardia (IART) is a frequent arrhythmia in patients with Fontan circulation. Although its supraventricular origin, such arrhythmia can be poorly tolerated as it leads to haemodynamic impairment. Concomitant assessment of pressure/volume overload of cardiac chambers due to valvular disease or residual shunts is necessary.

Value of preoperative echocardiography for the diagnosis of coronary artery patterns in neonates with transposition of the great arteries.

Background: Abnormal coronary pattern may complicate coronary transfer during arterial switch operation.

Objective: To evaluate the accuracy of echocardiography in assessing the anatomy of coronary arteries in neonates with transposition of the great arteries, and determine impact on outcomes.

Methods: We conducted a retrospective analysis of data in neonates with transposition of the great arteries.

Outcomes of Newborns with Prenatal Ventricular Asymmetry not Requiring Neonatal Surgical Intervention: a 22-Year Retrospective Single-Center Study.

To assess the outcomes of neonates prenatally diagnosed with ventricular asymmetry and not operated on within the neonatal period and to determine the risk factors for left heart obstruction occurrence at follow-up. All neonates with prenatal asymmetry of the ventricles, diagnosed from August 1993 to July 2015, not operated on within the neonatal period, were retrospectively included in the study. Left heart echocardiographic measurements at birth and at last follow-up were collected and compared.

Recent Developments in Organophosphorus Flame Retardants Containing P-C Bond and Their Applications.

Organophosphorus compounds containing P-C bonds are increasingly developed as flame retardant additives due to their excellent thermal and hydrolytic stability and ease of synthesis. The latest development (since 2010) in organophosphorus flame retardants containing P-C bonds summarized in this review. In this review, we have broadly classified such phosphorus compounds based on the carbon unit linked to the phosphorus atom i.