Feasibility and Safety of Regadenoson Stress Perfusion Protocol in Pediatric Transplant Patients under General Anesthesia.

Background: Cardiac magnetic resonance with myocardial stress perfusion (stress CMR) is a non-invasive technique that offers assessment of myocardial function, perfusion, and viability. Regadenoson is a selective cardiac adenosine A2 receptor agonist with fewer side effects than adenosine and a favorable safety profile in older pediatric heart transplant recipients (PHTR). There are limited studies evaluating the hemodynamic response of regadenoson in pediatric patients under general anesthesia (GA).

Finite element analysis (FEA) of the stress behavior of some dental materials.

This study compared the biomechanical behavior of three widely used dental materials-zirconia, lithium disilicate (IPS e.max CAD), and 3D-printed composite (VarseoSmile CrownPlus)- for maxillary anterior bridge restorations. Finite element analysis (FEA) was employed to evaluate the mechanical response of these materials under normal occlusal forces, replicating real clinical conditions.

Postnatal Outcomes in Prenatally Detected Vascular Rings.

Vascular rings are rare congenital defects that can cause tracheal and/or esophageal compression. Prenatal detection is increasing due to advances in screening and fetal echocardiography. Postnatal outcomes remain variable.

Clinical Statistical Study on the Prevalence of Carious Lesions in First Permanent Molars.

Dental caries remains one of the most widespread chronic diseases that also affects first permanent molars (FPMs). In this study, we analyzed the prevalence of carious lesions using a standardized evaluation system, while following the analysis of the influence of favoring factors represented by the type and frequency of snacks and the frequency of tooth brushing. A clinical-statistical study was carried out on a group of 311 children from both urban and rural environments, aged between 6 and 19 years old.