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'Mitral Valve' (66934)


Feb
2018

Atrial fibrillation (AF) is frequent in patients with rheumatic mitral stenosis (MS). Pressure overload leads to marked structural and electrical remodelling of left atrium. The frequency of persistent AF increases with age and paroxysmal, asymptomatic, AF seems even more frequent.

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Feb
2018

Intrinsic abnormalities of the mitral valve are common in patients with hypertrophic cardiomyopathy and may need to be addressed at operation.
Consecutive patients undergoing transmitral septal myectomy were retrospectively reviewed. The ventricular septum was exposed through a left atriotomy, and the anterior leaflet of the mitral valve was detached from its annulus.

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Jan
2018

Increasing evidence exists regarding calcium detected in aortic cusps and/or mitral annulus (AOC_MAC) at transthoracic echocardiogram as a predictor of cardiovascular (CV) events and mortality.
To verify whether AOC_MAC has a prognostic role in the setting of primary prevention independently of the presence of atrial fibrillation (AF).
All subjects consecutively referred from January 2011 to October 2014 to the Cardiovascular Centre for CV risk assessment in primary prevention were selected.

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Feb
2018

Consensus guidelines for prosthesis selection in infective endocarditis recommend bioprosthetic or mechanical valve replacement based on life expectancy and comorbidity. However, contemporary outcome data are limited to institution series.
The outcomes of 3,447 patients identified from mandatory discharge databases in California and New York states who had either primary isolated mitral (n=1603) or aortic (n=1,844) valve replacement for active endocarditis between 1998 and 2010, were compared according to whether they received bioprosthetic (n=1,673, 48.

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Feb
2018

A young, still multimorbid woman aquires infectious endocarditis. Anamnestically severe non-adherence concerning medical advice is reported. Complete cure may only be achieved by performing surgical heart valve replacement, which implies lifelong scrupulous oral anticoagulation postoperatively.

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Feb
2018

In severe asymptomatic primary mitral valve regurgitation without risk factors, surgery strategy is controversial. We sought to clarify whether being symptomatic corresponds to the hemodynamic burden and reduced exercise capacity. A better understanding of this may contribute to optimize timing of surgery.

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Jan
2018

Background Epicardial fat is a true visceral fat deposit with adverse effects through the secretion of numerous proinflammatory and proatherogenic cytokines. Previous studies showed an association between aortic valve sclerosis and coronary artery disease. The aim of this study was to determine the correlation between epicardial fat thickness and aortic valve sclerosis.

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Feb
2018

Mitral valve replacement using a bioprosthesis remains controversial in young patients because data on long-term outcomes are missing. This study evaluated the long-term results of the PERIMOUNT pericardial mitral bioprosthesis in patients aged 65 years or younger.
From 1984 to 2010, 148 Carpentier-Edwards PERIMOUNT mitral bioprostheses were implanted in 148 patients aged 65 years or younger.

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Oct
2017

This study sought to determine the incidence and identify predictors of acute kidney injury (AKI) following percutaneous edge-to-edge mitral valve repair (PMVR) and compare the risk of AKI between PMVR and surgical mitral valve repair (SMVR).
We performed a single-centre analysis of 378 patients receiving treatment for mitral regurgitation (196 consecutive patients undergoing PMVR and 182 patients undergoing SMVR). The incidence of AKI (any stage according to KDIGO) following PMVR was 17.

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Feb
2018

To assess the clinical implementation and report preliminary results of a novel technique called the Ozaki procedure for stentless aortic valve replacement through reconstruction of the valve leaflets from autologous pericardium.
Between September 2015 and May 2017 30 patients (20 males, mean ± standard deviation age 66.83 ± 10.

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Feb
2018

Perioperative stroke: pathophysiology and management.

Korean J Anesthesiol 2018 Feb 1;71(1):3-11. Epub 2018 Feb 1.
Sang-Bae Ko
Although perioperative stroke is uncommon during low-risk non-vascular surgery, if it occurs, it can negatively impact recovery from the surgery and functional outcome. Based on the Society for Neuroscience in Anesthesiology and Critical Care Consensus Statement, perioperative stroke includes intraoperative stroke, as well as postoperative stroke developing within 30 days after surgery. Factors related to perioperative stroke include age, sex, a history of stroke or transient ischemic attack, cardiac surgery (aortic surgery, mitral valve surgery, or coronary artery bypass graft surgery), and neurosurgery (external carotid-internal carotid bypass surgery, carotid endarterectomy, or aneurysm clipping).

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Feb
2018

To establish normal reference ranges for cardiac valve crosssectional areas (CSAs) in preterm infants and their correlation with gestational age, body weight, and chronological age.
In a prospective study, 268 preterm babies fulfilling the criteria for inclusion were examined. Echocardiograms were performed to measure aortic, pulmonary, mitral, and tricuspid valve CSAs on 0-6 day (s) of life and at weekly intervals until they reached 36 weeks.

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Feb
2018

A 31-year-old man with a mitral bioprosthetic valve presented with recent worsening of exertional dyspnoea 7 years after the mitral valve replacement. Evaluation revealed an increased gradient across the thickened mitral bioprosthetic valve leaflets. Marked eosinophilia was present and was considered as a putative cause for bioprosthetic valve thrombosis.

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Feb
2018

To describe the early hemodynamic changes after fetal aortic valvuloplasty (FAV) for evolving hypoplastic left heart syndrome due to mid-gestational aortic stenosis and to assess whether these early changes predict biventricular (BiV) circulation at neonatal discharge.
We retrospectively reviewed all technically successful FAV cases resulting in live birth between 2000 and 2015 (n=93, 45% BiV circulation at neonatal discharge). Paired testing methods were used to compare pre- and post-intervention measures of left ventricular hemodynamics.

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Mar
2018

We determined factors associated with long-term outcomes of patients who underwent successful percutaneous mitral balloon valvuloplasty (PMV).
Between August 1980 and May 2013, 1187 patients underwent PMV at Severance Hospital, Seoul, Korea. A total of 742 patients who underwent regular clinic visits for more than 10 years were retrospectively analyzed.

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Feb
2018

Interventional techniques have been developed for a wide spectrum of mechanisms of heart failure (HF), especially in valvular heart disease and cardiomyopathies (ischaemic cardiomyopathy and hypertrophic cardiomyopathy). In this article, we review recent reports on catheter interventions to treat patients with HF.
Direct modification using the Parachute device and the REVIVENT-TC device for patients with impaired left ventricle with large infarct scars improves geometry and haemodynamic efficiency, resulting in a reduction of HF symptoms.

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Feb
2018

Percutaneous therapies for congenital heart disease have been evolving rapidly despite limited investment from industry. The Melody transcatheter pulmonary valve (Medtronic, Inc, Minneapolis, MN USA) replacement therapy represents an important advancement in this arena. It has been approved in the United States for use in the pulmonary position, on a Humanitarian Device Exemption status.

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Feb
2018

The periareolar access has been the preferred technique used at our institution for minimally invasive cardiac surgery since 2006. The surgical approach consists of video-assisted minithoracotomy in the 4th right intercostal space, through a periareolar incision. Initially, the technique was restricted to minimally invasive mitral valve surgeries but, due to its feasibility and safety, was soon incorporated as an ideal access for other cardiac pathologies such as tricuspid valve disease, atrial septal defect, atrial fibrillation, and pacemaker leads endocarditis.

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Feb
2018

To estimate the association between aortic cross clamp time and postoperative morbidity and mortality in patients undergoing mitral valve repair.
A retrospective cohort study between 2006 and 2014 was performed as a single Centre study in the University Medical Centre Utrecht. In total 1007 patients who underwent mitral valve repair were included.

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Feb
2018

Clinical decision making in children with heart disease relies on detailed measurements of cardiac structures using two-dimensional and M-mode echocardiography. However, no echocardiographic reference values are available for the Chinese children. We aimed to establish z-score regression equations for left heart structures in a population-based cohort of healthy Chinese Han children.

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Feb
2018

We report the case of a patient with mitral regurgitation complicated by type B dissection and Marfan syndrome (MFS) who was managed successfully with minimally invasive mitral valve repair. Without type A aortic dissection or aortic root dilation, MFS patients may develop mitral valve regurgitation, as in this case, and need valve surgery to improve their symptoms and long-term survival. However, it is not clear that a full sternotomy and prophylactic aortic surgery are necessary.

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Jan
2018

Patients with symptomatic severe aortic stenosis and severe mitral regurgitation or severe tricuspid regurgitation were excluded from the major transcatheter aortic valve replacement trials. We studied these 2 subgroups in patients at extreme risk for surgery in the prospective, nonrandomized, single-arm CoreValve US Expanded Use Study.
The primary end point was all-cause mortality or major stroke at 1 year.

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Feb
2018

Myxomatous mitral valve disease (MMVD) is the most common heart disease in the dog. It is believed to be heritable in Cavalier King Charles spaniels (CKCS) and Dachshunds. Myxomatous mitral valve disease is a familial disease in human beings as well and genetic mutations have been associated with its development.

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Mar
2018

Repair for Congenital Mitral Valve Stenosis.

Semin Thorac Cardiovasc Surg Pediatr Card Surg Annu 2018 Mar;21:46-57
Eva Maria Delmo Walter, Roland Hetzer
We report the techniques and long-term outcome of mitral valve (MV) repair to correct congenital mitral stenosis in children. Between 1986 and 2014, 137 children (mean age 4.1 ± 5.

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Mar
2018

Congenital mitral valve (MV) dysplasia is a relatively rare and highly complex cardiac disease. We sought to provide a comprehensive analysis of the current surgical techniques for treating mitral valve insufficiency and the results of mitral valve repair at our institution. Between 1972 and 2017, 104 consecutive patients underwent surgical repair of congenital MV dysplasia-insufficiency at our institution.

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Dec
2017

The authors aimed to assess determinants of intubation time and evaluate its impact on 30-day and 1-year postoperative survival in Surgical Treatment for Ischemic Heart Failure (STICH) trial patients.
A multivariable Cox proportional hazards model was used among the 1,446 surgical patients from the STICH trial who survived 36 hours after operation, in order to identify perioperative factors associated with 30-day and 1-year postoperative mortality. A multivariable logistic regression model was used to determine risk factors associated with intubation time.

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Feb
2018

Echocardiographic 3D-guided 2D planimetry can improve the accuracy of valvular disease assessment. Acquisition of 3D pyramidal dataset allows subsequent multiplanar reconstruction with accurate orthogonal plane alignment to obtain the correct borders of an anatomic orifice or flow area. Studies examining the 3D-guided 2D planimetry approach in left-sided valvular heart disease were identified and reviewed.

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Feb
2018

Surgical correction of commissural mitral valve prolapse can be challenging. Several surgical techniques, including commissural closure, leaflet resection with sliding plasty and chordal replacement, remain commonly in use. Conversely, papillary muscle head repositioning remains uncommonly utilized for the treatment of commissural prolapse.

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Dec
1969

The primary aim was to investigate the role of underlying heart disease on preoperative NT-proBNP levels in patients admitted for adult cardiac surgery, after adjusting for the known confounders age, gender, obesity and renal function. The second aim was to investigate the predictive value of preoperative NT-proBNP with regard to severe postoperative heart failure (SPHF) and postoperative mortality.
A retrospective cohort study based on preoperative NT-proBNP measurements in an unselected cohort including all patients undergoing first time surgery for coronary artery disease (CAD; n = 2226), aortic stenosis (AS; n = 406) or mitral regurgitation (MR; n = 346) from April 2010 to August 2016 in the southeast region of Sweden (n = 2978).

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Feb
2018

Kawasaki disease (KD) is an acute febrile systemic vasculitic syndrome especially affecting medium-sized arteries, including the coronary artery. Inflammation may involve all organs, and valvulitis is one of the cardiovascular complications that occurs in the acute phase of KD. However, details regarding the mechanism are unclear.

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Feb
2018

Infective endocarditis (IE) is a life-threatening disease, mostly caused by gram-positive bacteria. Gram-negative bacteria were identified as a causative organism in relatively small number of cases. Although, antibiotic-resistant Escherichia coli is common cause of gram-negative endocarditis, AmpC beta-lactamase (BL)-harboring E coli is very rare cause of IE.

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Feb
2018

Mitral Valve Prolapse (MVP) is the most common cardiac valve pathology of to day. Aim of article was to identify the types and frequency of potentially malignant arrhythmia and atrial brillation in patients with MVP, to determine the differences in these arrhythmias between classical and non-classical MVP, to evaluate the correlation of potentially malignant arrhythmia and atrial fibrillation with MVP with possible clinical complications of arrhythmogenic sudden cardiac death and potential risk of thromboembolic vascular incident.
Article has retrospective-prospective analytical character and present observational study on 239 patients (120 with MVP (66 with classical and 54 with non-classical MVP), who had a subjective feeling of palpitations and/or pain in the chest, and/or episode of syncope, and did not have ischemic heart disease or another valve pathology) and 119 healthy patients in the control group.

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Dec
2017

Excess dilatation of the left atrium >65 mm is known in the literature as gigantic atrium. This dilation is most commonly encountered in the mitral insufficiency of rheumatic etiology, but also in severe prolapses of the mitral valve, permanent atrial fibrillation, and at the left right shunt with cardiac insufficiency.
In this paper is presented a case study of echocardiographically verified giant thrombus in left atrium in a 50 years old female patient aged 50 hospitalized because of tiredness, choking, heartburn and urinary tract symptoms.

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Dec
2017

Cardiovascular complications are the leading cause of mortality in end-stage renal disease (ESRD) patients. This study aimed to evaluate the efficacy of kidney transplantation on the cardiovascular status in ESRD patients.
During 2012 to 2014 and in a cross-sectional study, 181 patients were randomly selected for this study.

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Feb
2018


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Jan
2018

Subaortic septal myectomy is usually performed to mitigate obstruction in patients with the obstructive form of hypertrophic cardiomyopathy (HCM) or in those with congenital subaortic stenosis. Moreover, it is combined with aortic valve replacement in patients with severe aortic valve stenosis (SAS) and asymmetrical septal hypertrophy causing concomitant left ventricular outflow tract obstruction. When both conditions coexist, it is conceptually difficult to identify a cardiomyopathy beyond an adaptive myocardial hypertrophy, strictly related to pressure overload.

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Feb
2018


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Feb
2018

The Adult Congenital Heart Surgery (ACHS) score was derived from the Society of Thoracic Surgeons Congenital Heart Surgery Database. The score was validated with data of 1,603 operations and reached a good predictive power. We sought to evaluate its predictive power on 1,654 operations performed in 2 European centers.

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