Cardiac valve endothelial cells: Relevance in the long-term function of biologic valve prostheses

Cardiac Valve Prostheses

To determine the value of transesophageal ultrasound in the assessment of cardiac valve prostheses, 14 patients with clinically suspected mitral prosthesis malfunction were studied by transthoracic and transesophageal two-dimensional imaging as well as by color Doppler flow velocity mapping (color Doppler). Patients underwent left ventricular angiography (n = 13), surgery (n =11), or both angio...

Cardiac valve prostheses, anticoagulation, and pregnancy.

A series is presented of 7 women who underwent cardiac valve replacement and who ultimately became pregnant. The only infant death was that of a premature baby whose mother received oral anticoagulants until delivery. The remaining 6 babies were normal and survived. One mother died suddenly on the fourth postpartum day and was found to have a periprosthetic clot on postmortem examination. Altho...

Selection of aortic valve prostheses: contemporary reappraisal of mechanical versus biologic valve substitutes.

Clinical outcomes of pulmonary valve replacement surgery in pediatrics: a single-center experience long-term study

Introduction: Heart valve disease in pediatricsis an increasing global concern, especially in developing countries. This study aims to determine the clinical outcomes of pulmonary valve replacement (PVR) surgery in pediatrics. Methods: The authors retrospectively identified all pediatrics undergoing PVR surgery at Imam Reza hospital (Mashhad, Iran) between 2000 and 2020. Their medical records...

Long-term safety and effectiveness of mechanical versus biologic aortic valve prostheses in older patients: results from the Society of Thoracic Surgeons Adult Cardiac Surgery National Database.

BACKGROUND There is a paucity of long-term data comparing biological versus mechanical aortic valve prostheses in older individuals. METHODS AND RESULTS We performed follow-up of patients aged 65 to 80 years undergoing aortic valve replacement with a biological (n=24 410) or mechanical (n=14 789) prosthesis from 1991 to 1999 at 605 centers within the Society of Thoracic Surgeons Adult Cardiac...