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Heart (British Cardiac Society) May 2020
Topics: Atrial Fibrillation; Humans; Incidence; Mitral Valve Stenosis; Republic of Korea; Treatment Outcome
PubMed: 32029526
DOI: 10.1136/heartjnl-2019-316282 -
Acta Cardiologica Feb 2016The coexistence of mitral and aortic stenosis is not exceptional. Whereas rheumatic fever is currently plummeting in the Western countries, the incidence of degenerative... (Review)
Review
The coexistence of mitral and aortic stenosis is not exceptional. Whereas rheumatic fever is currently plummeting in the Western countries, the incidence of degenerative disease is inversely increasing. The haemodynamic interactions which may interfere both with the usual echocardiographic parameters and with the invasive assessment may render the diagnosis difficult. The therapeutic challenges raised by this entity should not be underestimated. The increased morbidity and mortality of multivalvular surgery has to be balanced with the risk of a second operation down the line if one valvular involvement, deemed of a lesser importance, is neglected. This complex situation requires the multidisciplinary approach of a heart team involving surgeons, cardiologists, geriatrists if need be and imaging specialists.
Topics: Aortic Valve Stenosis; Heart Valve Prosthesis Implantation; Humans; Incidence; Italy; Mitral Valve Stenosis; Transcatheter Aortic Valve Replacement; Treatment Outcome; Ultrasonography
PubMed: 26853247
DOI: 10.2143/AC.71.1.3132091 -
BMJ Case Reports May 2017
Topics: Adult; Female; Heart Valve Prosthesis; Heart Valve Prosthesis Implantation; Humans; Hypertension, Pulmonary; Mitral Valve; Mitral Valve Stenosis; Phonocardiography
PubMed: 28512104
DOI: 10.1136/bcr-2017-220120 -
Journal of the American College of... Jun 2020
Topics: Aging; Calcinosis; Constriction, Pathologic; Humans; Mitral Valve; Mitral Valve Stenosis
PubMed: 32553259
DOI: 10.1016/j.jacc.2020.04.056 -
Cardiology 2018
Topics: Catheterization; Heart Atria; Heart Valve Prosthesis Implantation; Humans; Mitral Valve Stenosis; Rheumatic Heart Disease
PubMed: 29772580
DOI: 10.1159/000487664 -
Clinical Cardiology Jun 1994This two-part article examines the histologic and morphologic basis for stenotic and purely regurgitant mitral valves. In Part I, conditions producing mitral valve... (Review)
Review
This two-part article examines the histologic and morphologic basis for stenotic and purely regurgitant mitral valves. In Part I, conditions producing mitral valve stenosis are reviewed. In over 99% of stenotic mitral valves, the etiology is rheumatic disease. Other rare causes of mitral stenosis include congenital malformed valves, active infective endocarditis, massive annular calcium, and metabolic or enzymatic abnormalities. In Part II, conditions producing pure mitral regurgitation will be discussed. In contrast to the few causes of mitral stenosis, the causes of pure (no element of stenosis) mitral regurgitation are multiple. Some of the conditions producing pure regurgitation include floppy mitral valves, infective endocarditis, papillary muscle dysfunction, rheumatic disease, and ruptured chordae tendinae.
Topics: Calcinosis; Catheterization; Humans; Mitral Valve Insufficiency; Mitral Valve Stenosis; Rheumatic Heart Disease; Rheumatic Nodule
PubMed: 8070151
DOI: 10.1002/clc.4960170611 -
Anatolian Journal of Cardiology Jul 2022
Topics: Cardiac Surgical Procedures; Humans; Mitral Valve Stenosis; Tricuspid Valve
PubMed: 35791705
DOI: 10.5152/AnatolJCardiol.2022.7 -
Scientific Reports Jul 2021Data on mitral valve replacement (MVR) in young children is still limited. Our objective was to evaluate MVR in children below 5 years and identify factors affecting...
Data on mitral valve replacement (MVR) in young children is still limited. Our objective was to evaluate MVR in children below 5 years and identify factors affecting the outcomes. This retrospective study included 29 patients who had MVR from 2002 to 2020. We grouped the patients into two groups according to their age: age ≤ 24 months (n = 18) and > 24 months (n = 11). Primary cardiac diagnoses were Shone complex (n = 7; 24%), isolated congenital mitral valve abnormality (n = 11; 38%), and complete atrioventricular septal defect (n = 3; 10%). The median age was 19 month (25th-75th percentile: 11-32) and 59% were females (n = 17). The hemodynamic lesions were mitral regurgitation in 66%, mitral stenosis in 10%, and combined mitral stenosis and regurgitation in 24% of the patients. St. Jude mitral valve was the most common valve implanted (n = 19, 66%), followed by CarboMedics in 21% of the patients (n = 6). The mitral valve was implanted in the supra-annular position in 6 cases (21%). Preoperative and operative data were comparable between both groups. There was no association between valve size and position with postoperative heart block (P > 0.99, for both). The median follow-up duration was 19.4 months (8.6-102.5). Nine patients had mitral valve reoperation, six had MVR, and three had clot removal from the mitral valve. There was no effect for age group on reoperation (SHR 0.89 (95% CI 0.27-2.87), P = 0.84). Valve size significantly affected reoperation (SHR 0.39 (95% CI 0.18-0.87), P = 0.02). The supra-annular position was associated with an increased risk of reoperation (SHR 3.1 (95% CI 1.003-9.4), P = 0.049). There was no difference in survival according to the age (Log-rank P = 0.57) or valve size (Log-rank P = 0.66). Mitral valve replacement in children is associated with low morbidity and mortality. The risk of reoperation could be affected by the valve size and position rather than the age.
Topics: Child, Preschool; Female; Heart Valve Prosthesis Implantation; Humans; Infant; Male; Mitral Valve; Mitral Valve Stenosis; Retrospective Studies
PubMed: 34315991
DOI: 10.1038/s41598-021-94779-0 -
Annals of Biomedical Engineering Jun 2015The mitral valve (MV) apparatus consists of the two asymmetric leaflets, the saddle-shaped annulus, the chordae tendineae, and the papillary muscles. MV function over... (Review)
Review
The mitral valve (MV) apparatus consists of the two asymmetric leaflets, the saddle-shaped annulus, the chordae tendineae, and the papillary muscles. MV function over the cardiac cycle involves complex interaction between the MV apparatus components for efficient blood circulation. Common diseases of the MV include valvular stenosis, regurgitation, and prolapse. MV repair is the most popular and most reliable surgical treatment for early MV pathology. One of the unsolved problems in MV repair is to predict the optimal repair strategy for each patient. Although experimental studies have provided valuable information to improve repair techniques, computational simulations are increasingly playing an important role in understanding the complex MV dynamics, particularly with the availability of patient-specific real-time imaging modalities. This work presents a review of computational simulation studies of MV function employing finite element structural analysis and fluid-structure interaction approach reported in the literature to date. More recent studies towards potential applications of computational simulation approaches in the assessment of valvular repair techniques and potential pre-surgical planning of repair strategies are also discussed. It is anticipated that further advancements in computational techniques combined with the next generations of clinical imaging modalities will enable physiologically more realistic simulations. Such advancement in imaging and computation will allow for patient-specific, disease-specific, and case-specific MV evaluation and virtual prediction of MV repair.
Topics: Computer Simulation; Humans; Mitral Valve; Mitral Valve Stenosis; Models, Cardiovascular
PubMed: 25134487
DOI: 10.1007/s10439-014-1094-5 -
Annals of Thoracic and Cardiovascular... 2012
Topics: Heart Valve Prosthesis Implantation; Humans; Mitral Valve; Mitral Valve Annuloplasty; Mitral Valve Stenosis; Polytetrafluoroethylene; Randomized Controlled Trials as Topic; Severity of Illness Index; Treatment Outcome
PubMed: 22971757
DOI: 10.5761/atcs.ed.12.01945