Transformative Effect of COVID-19 Pandemic on Magnetic Resonance Imaging Services in One Tertiary Cardiovascular Center.

The aim of study was to investigate the transformative effect of the COVID-19 pandemic on magnetic resonance imaging (MRI) services in one tertiary cardiovascular center. The retrospective observational cohort study analyzed data of MRI studies ( = 8137) performed from 1 January 2019 to 1 June 2022. A total of 987 patients underwent contrast-enhanced cardiac MRI (CE-CMR).

Mitral subvalvular plasty for chronic ischemic mitral regurgitation: a preliminary experimental model.

Background And Aim Of The Study: Restrictive annuloplasty remains the most widespread technique for the correction of chronic ischemic mitral regurgitation (IMR). However, this technique only partially corrects the underlying pathophysiology and does not address the restricted leaflet motions during systole that result from progressive left ventricular (LV) remodeling.

Methods: A novel experimental model of IMR was developed using an isolated pig heart placed on a hydrodynamic test-stand.