Hector I. Michelena
Mayo Clinic
Internal medicineRadiologySurgeryCardiologyAortic valve replacementMitral valveHeart failureStenosisRegurgitation (circulation)Doppler echocardiographyAortic valveMitral valve prolapseBicuspid aortic valveAortic valve stenosisPopulationMitral regurgitationIn patientMedicineCohortEjection fraction
270Publications
47H-index
6,752Citations
Publications 268
Newest
#1Benjamin Essayagh (Mayo Clinic)H-Index: 4
#2Avi Sabbag (Mayo Clinic)H-Index: 12
Last. Hector I. Michelena (Mayo Clinic)H-Index: 47
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Abstract null null Objectives null The aim of this study was to assess in patients with mitral valve prolapse (MVP) mitral annular disjunction (MAD) prevalence, phenotypic characteristics, and long-term outcomes (clinical arrhythmic events and excess mortality). null null null Background null Clinical knowledge regarding MAD of MVP remains limited and controversial, and its potential link with untoward outcomes is unsubstantiated. null null null Methods null A cohort of 595 (278 women, mean age ...
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#1Li-Tan Yang (NTU: National Taiwan University)H-Index: 1
#1Li Tan YangH-Index: 11
Last. Hector I. Michelena (Mayo Clinic)H-Index: 47
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Objective To comprehensively explore contemporary differences between bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV) patients with chronic haemodynamically significant aortic regurgitation (AR). Methods Consecutive patients with chronic ≥moderate-severe AR from a tertiary referral centre (2006–2017) were included. All-cause mortality, surgical indications and aortic valve surgery (AVS) were analysed. Results Of 798 patients (296 BAV-AR, age 46±14 years; 502 TAV-AR, age 67±14 years,...
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Introduction null We aimed to assess mitral valvular/annular/ventricular dynamics in mitral valve prolapse (MVP) stratified by mitral annular disjunction (MAD) presence, in the context of mitral surgery. null null null Method null In 61 patients (62 ± 11 years; 25% women) with MVP and severe mitral-regurgitation undergoing mitral-surgery between 2009-2016, 2D transthoracic and 4D-transesophageal echocardiographic characteristics and left ventricular (LV) dimensions/dynamics were analyzed, strati...
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#1Saarwaani Vallabhajosyula (Mayo Clinic)H-Index: 13
#2Margaret Fuchs (Cleveland Clinic)
Last. Hector I. Michelena (Mayo Clinic)H-Index: 47
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Objective null To compare the prevalence and patterns of anomalous coronary artery origin from the opposite sinus (ACAOS) in patients with bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV). null Methods null Retrospective review of consecutive patients with surgically excised BAV and TAV was performed from 1994 to 2015. Clinical notes, echocardiograms, coronary angiograms, CT angiographies, and pathology reports were reviewed. ACAOS included right coronary artery from the left cusp, l...
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Introduction null We aimed to assess whether LA-volume-index (LAVI) measured in routine clinical practice of multiple sonographers/cardiologist is associated independently with DMR survival. null null null Method null A cohort of all 5769 (63 ± 16 years, 47% women) consecutive patients with degenerative mitral valve disease, in whom LAVI was prospectively measured, was enrolled and their long-term survival analyzed. null null null Results null LAVI (43 ± 24 ml/m2) was widely distributed ( Fig. 1...
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#1Zi Ye (Mayo Clinic)
#2Mark M. Smith (Mayo Clinic)H-Index: 7
Last. Hector I. Michelena (Mayo Clinic)H-Index: 47
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Objectives null Cleft-like indentations (CLIs) of the mitral valve (MV) are best assessed with three-dimensional (3D) transesophageal echocardiography (TEE). The present study examined the prevalence, characteristics, and surgical effect of MV CLIs in patients with hypertrophic cardiomyopathy (HCM). null null null Design null Prospective, observational, case-control study. null null null Setting null Tertiary medical center. null null null Participants null The study comprised 90 patients with H...
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#1James A. Nelson (Mayo Clinic)H-Index: 1
#2Raul E. Espinosa (Mayo Clinic)H-Index: 25
Last. Kent H. Rehfeldt (Mayo Clinic)H-Index: 11
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Functional mitral regurgitation (MR) describes valve leakage in the absence of disease or damage to the mitral leaflets or subvalvular apparatus. Significant, new functional MR after cardiopulmonary bypass (CPB) may result from a number of intraoperative processes, including left ventricular (LV) ischemia and enlargement, left atrial enlargement secondary to increased filling pressure, and systolic anterior motion of the mitral valve after mitral repair. Assessment of new MR after CPB is importa...
1 CitationsSource
#1Benjamin Essayagh (Mayo Clinic)H-Index: 4
#2Giovanni Benfari (Mayo Clinic)H-Index: 15
Last. Maurice E. Sarano (Mayo Clinic)H-Index: 18
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Background We ought to determine the prognostic role of left atrial coupling-index (LACI), as left atrial volume-index (LAVI) by tissue-Doppler-Imaging a′ (TDI-a′), in a large cohort of degenerative mitral regurgitation (DMR). Methods All consecutive 4792 patients (61 ± 16 years, 48% women) with isolated DMR diagnosed at the Mayo Clinic 2003–2011, comprehensively characterized, in whom LAVI and TDI-a’ in sinus rhythm was prospectively measured in routine practice, was enrolled and their long-ter...
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