9 documents found, page 1 of 1

Minimally Invasive Mitral Valve Repair: From Total Endoscopic To Closed-Chest R...

Minimally invasive cardiac surgery has evolved over the past few decades, thanks to advancements in technology and surgical techniques. These advancements have allowed surgeons to perform cardiac interventions through small incisions, reducing surgical trauma and improving patient outcomes1. However, despite these advancements, thoracoscopic mitral repair has not been widely adopted by the cardiac surgery commu...

Balance Between Maternal Antiviral Response and Placental Transfer of Protectio...

The intricate interplay between maternal immune response to SARS-CoV-2 and the transfer of protective factors to the fetus remains unclear. By analyzing mother-neonate dyads from second and third trimester SARS-CoV-2 infections, our study shows that neutralizing antibodies (NAbs) are infrequently detected in cord blood. We uncovered that this is due to impaired IgG-NAb placental transfer in symptomatic infectio...

Saliva Molecular Testing Bypassing RNA Extraction is Suitable for Monitoring an...

Background: Adults are being vaccinated against SARS-CoV-2 worldwide, but the longitudinal protection of these vaccines is uncertain, given the ongoing appearance of SARS-CoV-2 variants. Children remain largely unvaccinated and are susceptible to infection, with studies reporting that they actively transmit the virus even when asymptomatic, thus affecting the community. Methods: We investigated if saliva is an ...

Complement Decay-Accelerating Factor is a modulator of influenza A virus lung i...

Clearance of viral infections, such as SARS-CoV-2 and influenza A virus (IAV), must be fine-tuned to eliminate the pathogen without causing immunopathology. As such, an aggressive initial innate immune response favors the host in contrast to a detrimental prolonged inflammation. The complement pathway bridges innate and adaptive immune system and contributes to the response by directly clearing pathogens or inf...

Secretory IgA and T Cells Targeting SARS-CoV-2 Spike Protein Are Transferred to...

In view of the scarcity of data to guide decision making, we evaluated how BNT162b2 and mRNA-1273 vaccines affect the immune response in lactating women and the protective profile of breastmilk. Compared with controls, lactating women had a higher frequency of circulating RBD memory B cells and higher anti-RBD antibody titers but similar neutralizing capacity. We show that upon vaccination, immune transfer to b...

Ischemic rupture of the anterolateral papillary muscle

We describe the case of a 59-year-old man who presented with chest pain and ST-segment elevation in the inferior leads, R>S in V1 and ST depression in the anterior leads due to proximal occlusion of the first obtuse marginal. Primary coronary angioplasty and stenting of this artery were performed. Twelve hours later the patient became hemodynamically unstable and severe mitral regurgitation due to rupture of on...

Intraventricular Pressure Gradients in Heart Failure

The aim of the present study was to characterize intraventricular pressure gradients (IVPGs) in an animal model of chronic heart failure. New Zealand rabbits were treated with doxorubicin (heart failure group, n=5) or saline (control group, n=5) and instrumented with pressure catheters placed in the apex and outflow-tract of left ventricle (LV) and with sonomicrometer crystals placed in the apex and base of the...

Diastolic tolerance to systolic pressures closely reflects systolic performance...

In animal experiments, elevating systolic pressures induces diastolic dysfunction and may contribute to congestion, a finding not yet translated to humans. Coronary surgery patients (63 +/- 8 years) were studied with left ventricular (LV) pressure (n = 17) or pressure volume (n = 3) catheters, immediately before cardiopulmonary bypass. Single-beat graded pressure elevations were induced by clamping the ascendin...

Acute coronary syndrome and endocarditis 20 years before: how do they match?