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Ayoub Chadi - - 2013
Elongated anterior mitral valve leaflet (EAMVL) has not been reported to cause left ventricular outflow tract obstruction (LVOTO) in the absence of left ventricular hypertrophy. We report the case of an elderly male patient who presented with acute heart failure and severe mitral regurgitation in the setting of dehydration. Echocardiography ...
Jensen Morten O - - 2013
Mitral valve repair with annulus downsizing is a popular surgical procedure for functional mitral regurgitation. We investigated the effects of externally applied downsizing on the observed in-plane forces and valvular dimensions. Five animals were included in an acute porcine study. Three traction sutures were anchored at the right fibrous trigone ...
Helvacioglu Funda - - 2013
Echocardiographic assessment of patients with mitral valve stenosis (MS) requires a detailed evaluation of mitral valve anatomy, mitral valve area (MVA), and pressure gradient and presence concomitant valve diseases. Our aim was to evaluate planimetric MVA and transmitral flow velocities using cardiac magnetic resonance (CMR) in patients with isolated MS ...
Yamauchi Haruo H Department of Cardiac Surgery, Boston Children's Hospital, Harvard Medical School, Boston, - - 2013
Mechanisms and treatments of nonischemic functional mitral regurgitation (NIMR) are not fully established, in part, because of a lack of proper large animal models. We developed a novel technique of NIMR creation in a swine model by making multiple small incisions in the mitral annulus. Ex vivo experiments using isolated ...
Rosenhek Raphael - - 2013
Degenerative and functional mitral regurgitation (MR) constitute two separate disease entities: while the pathophysiological problem is directly addressed by a successful intervention on the valve in the first case, the underlying ventricular disease persists in the latter. Indications for surgery in mitral regurgitation are well defined for degenerative MR, where ...
Guglin Maya - - 2013
Recurrent endocarditis of a bioprosthetic tricuspid valve is a challenging condition, which sometimes requires complete valvectomy. We report a case in which a right ventricular assist device, a Thoratec Centrimag Blood Pump (Thoratec Corp., Pleasanton, CA), was successfully used for temporary hemodynamic support to protect the right ventricle until the ...
Gucuk Ipek Esra - - 2013
A 66-year-old male was brought to our hospital following a car accident. He had subarachnoid hemorrhage, multiple rib fractures, and left hemopneumothorax. He was referred to the Cardiology Department for elevated troponin levels (42 ng/ml, reference 0-1 ng/ml). The electrocardiogram was free of ischemia, whereas the transthoracic echocardiography revealed dilated ...
Hamm Karsten K Department of Cardiology, Cardiovascular Hospital Bad Neustadt, Germany. - - 2013
Percutaneous mitral valve repair with the MitraClip system (Abbot Vascular, USA) is a promising technique for the non-surgical treatment of mitral regurgitation in special situations. The case is reported of a 72-year-old patient with history of atrial fibrillation and a severely impaired left ventricular function who underwent successful MitraClip implantation ...
Mittal S R - - 2013
Myocardial infarction is very uncommon in young females. We are reporting a case of acute myocardial infarction in a 20 year pregnant female with prosthetic mitral valve. Embolism from mitral valve prosthesis, in-situ thrombosis due to hypercoagulable state of pregnancy or coronary spasm could be responsible.
Atluri Pavan - - 2013
Minimally invasive approaches to mitral valve repair have demonstrated equivalent technical outcomes and more rapid recovery when compared with traditional sternotomy. These techniques have been widely accepted for mitral insufficiency and stenosis. The utilization of minimally invasive techniques in the presence of left ventricular (LV) dysfunction has been controversial. We ...
Gutermann Herbert - - 2013
Patients with hypertrophic obstructive cardiomyopathy due to diffuse hypertrophy extending to or below the papillary muscles are poor candidates for alcohol septal ablation and suboptimal candidates for transaortic septal myectomy. In addition, the outflow obstruction is often aggravated by an abnormal mitral valve and subvalvular apparatus. We performed transatrial myectomy ...
Lacalzada Juan - - 2013
Percutaneous coronary intervention with placement of a drug-eluting stent in a diabetic patient with ST-elevation myocardial infarction is a relatively common procedure, and always requires subsequent treatment with dual antiplatelet therapy. It is sometimes necessary to add oral anticoagulation therapy because of individual clinical circumstances, which further increases the risk ...
Silbiger Jeffrey J - - 2013
Ischemic mitral regurgitation (MR) is a common complication of myocardial infarction thought to result from leaflet tethering caused by displacement of the papillary muscles that occurs as the left ventricle remodels. The author explores the possibility that left atrial remodeling may also play a role in the pathogenesis of ischemic ...
Tourmousoglou Christos - - 2013
We report a case of a 77-year-old male who presented with an aorto-left ventricular fistula and an aorto-right ventricular fistula secondary to prosthetic valve endocarditis.
Glaser Natalie - - 2013
Modern extracorporeal membrane oxygenation support has revolutionized the survival outcome of critically ill patients with refractory cardiac failure. Mitral valve replacement in patients treated with extracorporeal membrane oxygenation poses a surgical challenge regarding the choice of appropriate prosthesis. We present two cases of mitral valve bioprosthetic failure within days to ...
Yasuda Shota - - 2013
We describe a technique of partial translocation with an autologous pericardial patch reinforcement of the left atrial wall in patients with extensive mitral annular calcification (MAC) who require mitral valve replacement.
Malev Eduard - - 2013
Background: In some inherited connective tissue diseases with involvement of the cardiovascular system, for example, Marfan syndrome, early impairment of left ventricular function, which have been described as Marfan-related cardiomyopathy has been reported. Our aim was to evaluate the left ventricular function in young adults with mitral valve prolapse without ...
Kasyanov Vladimir - - 2013
Abstract The aim of this study was to assess structural and biochemical differences in the extracellular matrix of the fetal and adult porcine mitral heart valves in relation to their mechanical characteristics. Using tensile tests it was demonstrated that the material properties of porcine mitral heart valves progressively change with ...
Nakamura Teruya T Division of Cardiovascular Surgery, National Hospital Organization Kure Medical Center, Kure, - - 2014
Systolic anterior motion of the mitral valve is usually associated with hypertrophic obstructive cardiomyopathy that results in left ventricular outflow tract obstruction. This is sometimes treated by volume loading or negative inotropics such as beta blockers. We report a rare case of dynamic systolic anterior motion of the mitral valve, ...
Krasner Andrew - - 2013
Patients with atrial fibrillation who have risk factors for thromboembolism benefit from chronic oral anticoagulation therapy, and antiplatelet therapy alone is of relatively little benefit for prevention of ischemic stroke and systemic embolism. Patients undergoing percutaneous coronary intervention with drug-eluting stents require dual antiplatelet therapy with aspirin and a thienopyridine ...
Jha Ajay Kumar - - 2013
Left ventricular outflow tract (LVOT) pseudoaneurysm is a rare occurrence and may produce clinically unpredictable symptoms. A very few cases of LVOT pseudoaneurysm are reported and there has always been a predisposing factor in these reported cases such as history of infective endocarditis, myocardial infarction, prosthetic aortic valve replacement or ...
Shiina Yumi - - 2013
A 29-year-old male, who had undergone a Bjork procedure for tricuspid atresia with a ventricular septal defect, had redo surgery for relief of stenosis and systolic regurgitation of the right atrioventricular pathway. After revision using a valved bioprosthesis, effective biventricular physiology was established and the patient's functional status improved.
Jelenc Matija - - 2013
Good right ventricular function is one of the major determinants of long-term outcomes in patients with implanted left ventricular assist devices (LVADs). In the present study, a computer model was developed to assess the impact of mitral regurgitation on right ventricular workload at different levels of LVAD support. Left ventricular ...
Sarsam Sinan H - - 2013
Ventricular assist devices are increasingly being used for mechanical support in patients with advanced heart failure. However, thromboembolism remains a leading cause of mortality in this population. We describe the successful treatment of native aortic valve thrombosis with bivalirudin in a patient with factor V Leiden mutation, who had undergone ...
Vernick William J - - 2013
To evaluate the accuracy of Doppler-derived transmitral valve gradients immediately after mitral valve repair by comparing them with near simultaneously obtained direct catheter gradients. A prospective study. A tertiary care medical center. Twenty elective adult surgical patients presenting for mitral valve repair surgery. Mitral valve surgery proceeded in standard fashion ...
Nouri Masoumeh - - 2013
It is not clear whether the presence and degree of chronic ischemic mitral regurgitation (IMR) in patients with left ventricular (LV) dysfunction are related to LV dysfunction, local LV remodeling or mitral valve deformation. We sought to establish the strongest determinants of IMR severity in patients with LV dysfunction and ...
Aruni Bhavith - - 2013
A 59-year-old male with an secundum atrial septal defect status post repair with an Amplatzer occluder in 2001 was admitted with sepsis and MRSA bacteremia. Transesophageal Echocardiography (TEE) showed presence of an overlying mobile echogenic structure on the left atrial surface of the device suggestive of a vegetation/infected thrombus. This ...
Zhong Liang - - 2013
Investigating the intra-ventricular flow is the most important to understand the left ventricular function. In this study, we proposed a fluid-structure interaction (FSI) approach to simulate the blood flow in patient-specific model by combining both mitral and aortic valves. To accommodate the large mesh deformation, moving arbitrary Lagrangian-Eulerian (ALE) meshes ...
Alonazi Khalid A - - 2013
The support of a failing heart with pump devices has been an essential element in cardiac health care for several decades. It is therefore important to understand the left ventricular response to the pumping action of these devices when connected to the native heart. Furthermore, monitoring of aortic valve opening ...
Choi Andrew D - - 2013
The case is reported of a patient with a previously undiagnosed cause of severe congestive heart failure (CHF) caused by the presence of a discrete subaortic stenosis (SAS) from a subvalvular membrane (SVM). The clinical decision making was complicated by the concurrent presence of systolic anterior motion (SAM) of the ...
Weber Benedikt - - 2013
Heart valve tissue engineering based on decellularized xenogenic or allogenic starter matrices has shown promising first clinical results. However, the availability of healthy homologous donor valves is limited and xenogenic materials are associated with infectious and immunologic risks. To address such limitations, biodegradable synthetic materials have been successfully used for ...
Martina Jerson R - - 2013
OBJECTIVESContinuous-flow left ventricular assist devices (cf-LVADs) may induce commissural fusion of the aortic valve leaflets. Factors associated with this occurrence of commissural fusion are unknown. The aim of this study was to examine histological characteristics of cf-LVAD-induced commissural fusion in relation to clinical variables.METHODSGross and histopathological examinations were performed on ...
Yoganathan Ajit P - - 2013
Congenital heart valve disease is one of the most common abnormalities in children. There are limited technological solutions available for treating children with congenital heart valve diseases. The aim of this study is to provide the details of the consensus reached in terms of pediatric definitions, design approach, in vitro testing, ...
Yang Zhaoying - - 2013
OBJECTIVE: To investigate vascular endothelial impairment as a result of reperfusion therapy in patients with acute myocardial infarction (AMI). METHODS: Patients with AMI underwent reperfusion therapy (percutaneous cardiac intervention [PCI] or thrombolytic therapy) or conservative drug therapy. Healthy control subjects were recruited. Endothelial impairment was assessed via endothelial nitric oxide ...
Maltais Simon - - 2013
OBJECTIVES: Patients with severe ischemic cardiomyopathy (left ventricular ejection fraction <25%) and severe ischemic mitral regurgitation have a poor survival with medical therapy alone. Left ventricular assist device as destination therapy is reserved for patients who are too high risk for conventional surgery. We evaluated our outcomes with conventional surgery ...
Mohite Prashant Nanasaheb - - 2013
Diseased, replaced or repaired mitral valve can lead to restricted blood flow to left ventricle and inadequate flow in left ventricular assist device (LVAD). A middle age woman with 'burnt out' hypertrophic cardiomyopathy had mitral valve repair for mitral regurgitation. She needed (LVAD) to support severe decompensating heart failure. Repaired ...
Puri Shipra - - 2013
PURPOSE:: To evaluate the functional capacity following mitral valve replacement in the early postoperative period and to determine the correlation of biventricular function and residual pulmonary artery hypertension (PAH) to the functional capacity. METHODS:: On the seventh postoperative day, 53 patients who underwent mitral valve replacement with preoperative diagnosis of ...
Acioli Pereira Larissa - - 2013
Pseudoaneurysm of the left ventricular outflow tract (LVOT) is a rare disease with high morbidity and mortality, resulting from left ventricular damage due to myocardial infarction, infective endocarditis or surgical trauma. A case of giant pseudoaneurysm of the LVOT, even more rarely reported in the literature, is described. The lesion ...
Connell John M - - 2013
Ischemic mitral regurgitation (IMR) is a subcategory of functional rather than organic, mitral valve (MV) disease. Whether reversible or permanent, left ventricular remodeling creates IMR that is complex and multifactorial. A comprehensive TEE examination in patients with IMR may have important implications for perioperative clinical decision making. Several TEE measures ...
Patel Nirav - - 2013
Robotic surgery is a growing subspecialty in cardiac surgery. Custodiol HTK cardioplegia offers long-term myocardial protection, decreased metabolism, and eliminates multiple cardioplegia dosing. This article reviews the technique, strategy, and considerations for use of Custodiol HTK for myocardial protection in robotic mitral valve surgery.
Pande Shantanu S Department of Cardiovascular and Thoracic Surgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, - - 2013
asymptomatic left atrial enlargement is not uncommon in rheumatic mitral valve disease. We studied the change in size of the left atrium after mitral valve replacement. between January and December 2005, 116 patients underwent isolated mitral valve replacement. Two groups were identified based on left atrial size: group 1 < 60 mm (n = 79) ...
Bloechlinger Stefan - - 2013
In a patient with staphylococcus lugdunensis prosthetic aortic valve endocarditis and coronary septic embolism accompanied by antero-lateral myocardial infarction, embolic material was successfully aspirated from the bifurcation of the left anterior descending coronary artery and the first diagonal branch. A good angiographic result was documented six months thereafter when the ...
Atsumi Yosuke - - 2013
We report a case of severe mitral regurgitation (MR) with dextrocardia and 180° counterclockwise rotated situs solitus heart. We describe the technique for mitral valve surgery in a patient with dextrocardia and agenesis of the right lung.
Tanrıkulu Azra - - 2013
Studies indicate that 5-7% patients undergoing percutaneous coronary intervention (PCI) have an indication for anticoagulation therapy. Most commonly atrial fibrillation (AF) is the indication. These subjects require triple therapy with aspirin, clopidogrel, and an oral anticoagulant (OAC). Several questions, concerns and challenges exist regarding the duration, benefit, risks and alternatives ...
Cheema Faisal H - - 2013
Valvular heart disease, inherited or acquired, affects more than 5 million Americans yearly. Whereas medical treatment is beneficial in the initial stages of valvular heart disease; surgical correction provides symptomatic relief and long-term survival benefits. Surgical options include either repair or replacement using mechanical or bio-prosthetic valves. Age and need ...
Smadi Othman - - 2013
AIMS: In vitro and in vivo studies were performed to evaluate the diagnostic accuracy of the different Doppler-echocardiographic parameters proposed in the American Society of Echocardiography guidelines to identify dysfunction of bileaflet mechanical valves (BMV) in the aortic position. METHODS AND RESULTS: Two models of BMV (St Jude HP, MCRI ...
Singh Bhupinder - - 2013
The anomalous mitral arcade is a rare congenital malformation of the mitral valve and its tensor apparatus. It is characterized by enlarged papillary muscles connected to each other and to the free edge of the anterior mitral leaflet by a bridge of fibrous tissue. We report a rare variant of ...
Thaden Jeremy - - 2013
A 40-year-old woman from El Salvador presented with 3 months of abdominal pain and diarrhea followed by 2 weeks of atypical chest pain and exertional dyspnea and was diagnosed with eosinophilic endocarditis secondary to Strongyloides stercoralis infection. Transthoracic echocardiogram revealed apical masses in the left and right ventricles and a ...
Varghese Robin - - 2013
OBJECTIVES: We set out to determine if intraoperative pre-bypass transoesophageal echocardiography could assist in predicting which patients are at greatest risk for systolic anterior motion (SAM) after mitral valve repair (MVR). METHODS: Three hundred and seventy-five consecutive patients who underwent reconstructive MVR surgery for degenerative disease were included. Data were ...
Di Mauro Michele - - 2013
This review article focuses on functional tricuspid regurgitation (FTR) that has long been a neglected and underestimated entity. FTR is defined as leakage of the tricuspid valve during systole in the presence of structurally normal leaflets and chordae. FTR may be secondary to several heart diseases, more commonly mitral valve ...
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