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Prosthesis-patient mismatch after transcatheter aortic valve replacement: prevalence and medium term prognostic impact
AbstractProsthesis-patient mismatch (PPM) occurs when the effective orifice area of the prosthesis is too small in relation to the patient's body surface area. There are few data available on the frequency and prognostic impact of PPM after transcatheter aortic valve implantation (TAVI). Our aim was to determine the prevalence of PPM and to investigate its association with medium-term clinical course of patients undergoing TAVI. We included 185 patients undergoing TAVI (79 ± 5 years, 49% male, 98% CoreValve) between April-2008 and December-2014. The effective orifice area (EOA) was determined by transthoracic echocardiogr...
Source: The International Journal of Cardiovascular Imaging - January 19, 2019 Category: Radiology Source Type: research

Prognostic value of left atrial strain in patients with moderate asymptomatic mitral regurgitation
AbstractFor patients with asymptomatic mitral regurgitation (MR), the criteria identifying the groups at higher-risk and their clinical outcome are still uncertain. Therefore, in these patients, optimal time of surgery remains controversial. The purpose of this study was to compare left atrial (LA) strain to other echocardiographic left ventricular (LV) and LA parameters for the prediction of cardiovascular outcomes in patients with moderate asymptomatic MR. We enrolled 395 patients with primary degenerative moderate asymptomatic MR. Exclusion criteria were: history of atrial fibrillation, myocardial infarction, heart fail...
Source: The International Journal of Cardiovascular Imaging - April 9, 2019 Category: Radiology Source Type: research

Inadequately low left ventricular mass in patients with significant aortic stenosis predicts favourable prognostic outcomes
AbstractIn patients with significant aortic stenosis (AS), the prognostic effect of the increase in left ventricular mass (LVM) in relation to one ’s hemodynamic load has been described. Inappropriately high LVM has been shown to predict adverse cardiovascular events. However, little is known about the prognostic impact of inadequately low LVM (i-lowLVM) in patients with significant AS. I-lowLVM was defined as the measured LVM <  73% of the predicted LVM based on sex, stroke work and height from the reference adult population, used in previous established studies. For outcome analysis, the end-point was defined a...
Source: The International Journal of Cardiovascular Imaging - January 16, 2021 Category: Radiology Source Type: research