Alexandre Altes
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Association of Preoperative Cardiac Magnetic Resonance and Echocardiography with Postoperative Left Ventricular Dysfunction in Primary Mitral Regurgitation Open
In patients with primary MR undergoing MV surgery, preoperative LV characteristics assessed by Echo and CMR showed only moderate ability to identify those at higher risk of postoperative LV dysfunction. A stepwise approach using Echo indLV…
Relationship between the left-to-right ventricular volume ratio and aortic regurgitation severity: an echocardiographic and cardiac magnetic resonance imaging study Open
Aims Left ventricular (LV) enlargement in chronic aortic regurgitation (AR) is commonly assessed using diameters and volumes. However, these measures are influenced by body size, sex, and age. The left-to-right ventricular end-diastolic vo…
Right Atrial Cardiac Hemangioma Open
We present a case of a 76-year-old man with de novo right heart failure. Echocardiography initially detected a mass near to the posterior area of the right atrium. Despite a comprehensive multimodality imaging assessment, the exact locatio…
Impact of Sex on Severity Assessment and Cardiac Remodeling in Primary Mitral Regurgitation Open
Despite having hallmarks of more advanced valvular heart disease, women with significant primary MR demonstrate lower mitral RegVol and ventricular volumes than men. In contrast, the systematic calculation of MR regurgitant fraction could …
Left ventricular remodeling in chronic aortic regurgitation: both age and sex matter Open
Background For chronic and severe aortic regurgitation (AR), both European and American guidelines recommend surgery in the setting of dilated left ventricle (LV). However, normal LV volumes are described according to age and gender (1) an…
View article: Is there an outcome penalty linked to guideline-based class-I indications for valvular surgery? long-term analysis of patients with high gradient severe aortic stenosis
Is there an outcome penalty linked to guideline-based class-I indications for valvular surgery? long-term analysis of patients with high gradient severe aortic stenosis Open
Background Current ACC/AHA guidelines recommend aortic valve replacement (AVR) as class-I triggers in patients with high-gradient severe aortic stenosis (HGSAS) in presence of symptoms and/or left ventricular dysfunction (LVEF50%, n=853), …
Impact of sex on severity assessment and cardiac remodeling in primary mitral regurgitation due to valve prolapse Open
Funding Acknowledgements Type of funding sources: None. Background It is well known that left ventricular(LV) dimensions are influenced by body size and sex. However, current guidelines for primary mitral regurgitation(MR) valve disease pr…
Quantification of primary mitral regurgitation by echocardiography: A practical appraisal Open
The accurate quantification of primary mitral regurgitation (MR) and its consequences on cardiac remodeling is of paramount importance to determine the best timing for surgery in these patients. The recommended echocardiographic grading of…
The evolving role of cardiovascular magnetic resonance in the assessment of mitral valve prolapse Open
Mitral valve prolapse (MVP), characterized by a displacement > 2 mm above the mitral annulus of one or both bileaflets, with or without leaflet thickening, is a common valvular heart disease, with a prevalence of approximately 2% in wester…
Prognostic implications of paradoxical low gradient severe aortic stenosis: a comprehensive analysis from a large multicentric registry Open
Background Up to 40% of patients with severe aortic stenosis (SAS; indexed aortic valve area (AVAi) 0.6 cm2/m2) and high gradient SAS (HG-SAS; i.e. mean gradient >40 mmHg and AVAi 50%) from an international multicentric registry were studi…
Comparison of mitral regurgitant volume assessment between proximal flow convergence and volumetric methods in patients with significant primary mitral regurgitation Open
Funding Acknowledgements Type of funding sources: None. Background. Discrepancies have been observed between transthoracic echocardiography (TTE) and cardiac magnetic resonance imaging (MRI) severity grading in primary mitral regurgitation…
Relationship Between the Ratio of Acceleration Time/Ejection Time and Mortality in Patients With High‐Gradient Severe Aortic Stenosis Open
Background The ratio of acceleration time/ejection time (AT/ET) is a simple and reproducible echocardiographic parameter that integrates aortic stenosis severity and its consequences on the left ventricle. No study has specifically assesse…
View article: Balloon aortic valvuloplasty for severe aortic stenosis before urgent non-cardiac surgery
Balloon aortic valvuloplasty for severe aortic stenosis before urgent non-cardiac surgery Open
Patients with SAS managed conservatively before urgent NCS are at high risk of events. A systematic invasive strategy using BAV does not provide a significant improvement in clinical outcome.
Myocardial Contraction Fraction for Risk Stratification in Low-Gradient Aortic Stenosis With Preserved Ejection Fraction Open
Background: Myocardial contraction fraction (MCF) is a volumetric measure of myocardial shortening independent of left ventricular size and geometry. This multicenter study investigates the usefulness of MCF for risk stratification in low-…
Excess Mortality and Undertreatment of Women With Severe Aortic Stenosis Open
Background Although women represent half of the population burden of aortic stenosis (AS), little is known whether sex affects the presentation, management, and outcome of patients with AS. Methods and Results In a cohort of 2429 patients …
Dimensionless Index in Patients With Low-Gradient Severe Aortic Stenosis and Preserved Ejection Fraction Open
Background Risk stratification of patients with low-gradient (LG) severe aortic stenosis (AS) despite preserved left ventricular ejection fraction remains challenging. We sought to evaluate the relationship between the dimensionless index …
Severe Aortic Stenosis and Chronic Kidney Disease: Outcomes and Impact of Aortic Valve Replacement Open
Background The prognostic significance of chronic kidney disease (CKD) in severe aortic stenosis is poorly understood and no studies have yet evaluated the effect of aortic‐valve replacement (AVR) versus conservative management on long‐ter…