Search Results
Results 401 - 450 of 2148
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Davidson M J - - 2008
Technological advances have recently enabled mitral valve repair to be performed using endovascular techniques and thus open the possibility of nonsurgical treatment of mitral valve disease. While balloon valvotomy has been applied to mitral stenosis for over 20 years, a number of devices aimed at correcting mitral regurgitation are currently ...
Carrigan Thomas P - - 2008
A 39 year old woman with hypertrophic cardiomyopathy with severe latent obstruction and mitral regurgitation, presented with symptoms of dyspnea and atrial fibrillation, and developed an acute embolic stroke. After thrombolysis and complete neurologic recovery, a transesophageal echo revealed six mobile densities, on her mitral and aortic valves, and in ...
Hashim Sabet W - - 2008
Chronic ischemic mitral regurgitation is a prevalent problem among patients following a myocardial infarction. Until recently, the pathophysiology was poorly understood, resulting in surgical strategies with suboptimal results and limited durability. The surgical approach has evolved from revascularization alone to an additional mitral valve procedure, replacement, or repair. When the ...
Gorman Joseph H JH - - 2008
Five million Americans suffer from heart failure (HF). Despite innovative new pharmacologic and device therapies, the 5-year mortality rate for patients remains near 50%. Conservatively, 300,000 patients with HF also have severe functional mitral regurgitation. Over the past decade, the surgical approach to these patients has become more aggressive because ...
Rankin J Scott - - 2008
BACKGROUND AND AIM OF THE STUDY: Previously, surgery hypertrophic obstructive cardiomyopathy (HOCM) has consisted primarily of septal myectomy and/or resection of the anterior mitral leaflet with low-profile valve replacement. However, recent studies have shown that the anterior papillary muscle and chordal fan can contribute to obstruction, and also that significant ...
George Kristopher M - - 2008
In patients with degenerative mitral valve disease and tall leaflets, systolic anterior motion after mitral valve repair is generally avoided by use of a sliding posterior leaflet repair technique with an annuloplasty of appropriate size. Occasionally, in spite of these maneuvers, systolic anterior motion occurs intraoperatively after discontinuing cardiopulmonary bypass. ...
Scohy Thierry V - - 2008
BACKGROUND: Recent advances in three-dimensional (3D) echocardiography allow to obtain real-time 3D transesophageal (RT3DTEE) images intraoperatively. METHODS: Preoperative transthoracic echocardiography (TTE) revealed: hypertrophic ventricular septum (TTE:19.3 mm), systolic anterior motion (SAM) not causing obstruction and malcoaptation of the anterior mitral valve leaflet (AMVL), and posterior mitral valve leaflet (PMVL) with ...
Yuan Shi-Min - - 2008
Accessory mitral valve tissue is an unusual congenital cardiac anomaly and a rare cause responsible for left ventricular outflow tract obstruction. An 18-year-old patient was referred to this hospital due to an occasionally noted heart murmur in a medical examination. Echocardiography facilitated the diagnosis of accessory mitral valve tissue. To ...
Rama Akhtar - - 2008
In patients with ischemic left ventricular dysfunction and functional mitral regurgitation, the surgical treatment of the mitral insufficiency remains a challenging issue. Several procedures were described to restore a more normal alignment between the mitral annulus and the laterally displaced papillary muscles. We report a new approach to relocate the ...
Marijon Eloi - - 2008
Despite marked global differences in the prevalence of rheumatic heart disease, little is known about geographic variations in the characteristics of patients with severe mitral stenosis. To determine if differences in rheumatic fever epidemiology influence the characteristics of patients with mitral stenosis and the immediate results of percutaneous mitral commissurotomy ...
Messika-Zeitoun David - - 2008
Percutaneous mitral valve commissurotomy (PMC) is the treatment of choice for patients with mitral stenosis (MS) and favorable anatomy. Evaluation of MS should answer two questions: is MS severe? And is the valve suitable for PMC? Evaluation of MS severity relies on accurate echocardiographic assessment of the mitral valve area ...
Sharieff Saleem - - 2008
BACKGROUND Percutaneous mitral valvuloplasty (PMV) is a well known non-surgical technique for treating patients with rheumatic mitral stenosis (MS). There are very few studies that have compared the 3 techniques together for their safety and efficacy. To compare the three different techniques for percutaneous mitral valvuloplasty (PMV) using Inoue balloon ...
Stephens Elizabeth H - - 2008
BACKGROUND: Although chronic mitral regurgitation results in adverse left ventricular remodeling, its effect on the mitral valve leaflets per se is unknown. In a chronic ovine model, we tested whether isolated mitral regurgitation alone was sufficient to remodel the anterior mitral leaflet. METHODS AND RESULTS: Twenty-nine sheep were randomized to ...
Levionnois Olivier - - 2008
A one-year-old healthy sheep received an implant stenting the mural ('posterior') leaflet of the mitral valve. The experiment was authorized by the Cantonal Ethical Committee. The surgery was performed on the open, beating heart during cardiopulmonary bypass (CPB). Management of anaesthesia was based on isoflurane with mechanical intermittent positive pressure ...
Newcomb Andrew E - - 2008
OBJECTIVE: This study examines the outcomes of mitral valve repair in a defined group of patients with mitral regurgitation caused by advanced myxomatous degeneration. METHODS: Advanced myxomatous degeneration of the mitral valve was defined as a degenerative process whereby both leaflets are voluminous and aneurysmal and the mitral annulus diameter ...
Dhaliwal R S - - 2008
An optimal approach to the mitral valve for repair or replacement must provide adequate exposure even in a small left atrial and redo cases, without need for forceful retraction. This benefit of good exposure must not be at the cost of increased morbidity from increased postoperative bleeding, SA node, or ...
López-Pardo Francisco - - 2008
We report a case of giant blood cyst originating from the anterior mitral valve leaflet, which was discovered during a two-dimensional echocardiography examination performed for investigation of a systolic murmur in a 34-year-old healthy man. Three-dimensional microbubble-enhanced images showed a heart-shape appearance that may be pathognomonic for blood cyst of ...
Akay Tankut Hakki - - 2008
OBJECTIVE: We aimed to investigate the risk factors for hospital mortality, short (five years) and mid-term (10 years) survival in patients who underwent mitral valve replacements in redo patients with previous mitral valve procedures. PATIENTS AND METHODS: Between September 1989 and December 2003, 62 redo patients have undergone mitral valve ...
Cianciulli Tomás F - - 2008
BACKGROUND AND AIM OF THE STUDY: Percutaneous mitral valvuloplasty (PMV) is an effective method for treating patients with severe mitral stenosis. The study aim was to compare left and right atrial appendage functions before and after PMV. METHODS: Twenty-five patients (23 women, two men; mean age 38 +/- 9 years; ...
Yuan Shi-Min - - 2008
A critically ill patient had a major mitral paravalvular leak, failed device closure of the leak, and severe hemolytic anemia after a third mitral valve replacement. Echocardiography showed the Amplatzer occluder device completely displaced and swirled in the left atrial cavity. His condition was greatly improved after a fourth mitral ...
Chitwood W Randolph WR - - 2008
OBJECTIVES: Mitral valve repair is the standard therapy for patients with degenerative (myxomatous) disease and severe mitral regurgitation. Robotic mitral valve repair provides the least-invasive surgical approach. We report the largest single-center robotic mitral valve repair experience. METHODS: Between May 2000 and November 2006, 300 patients underwent a robotic mitral ...
García-Fuster Rafael - - 2008
BACKGROUND: Subvalvular preservation is beneficial in patients undergoing mitral valve replacement, especially in degenerative mitral regurgitation. Its feasibility and benefit is less evident in rheumatic disease. Our aim was to study the impact of preservation techniques in rheumatic patients and determine risk factors for mortality. METHODS: Five hundred sixty-six rheumatic ...
Mabrouk-Zerguini N - - 2008
BACKGROUND: Using echocardiography, perioperative assessment of systolic function by fractional area change (FAC) is questionable in patients suffering from mitral regurgitation (MR). Tei index, an index expressing global cardiac function, has been reported to be unchanged after mitral valve surgery. We tested the hypothesis where the Tei index could be ...
Hasegawa Hiroki - - 2008
OBJECTIVES: Mitral valve motion after performing an edge-to-edge repair is a major concern, but it has not yet been observed directly. Mitral valve motion was assessed by using a high-speed digital video camera and microsonometric analysis in an isolated swine heart, and any changes in the mitral valve area or ...
Sorgente Antonio - - 2008
The aim of this study was to evaluate the anatomic relation between the coronary sinus (CS), mitral annulus, and coronary arteries using 64-multislice computed tomography (MSCT) in patients presenting with a wide range of atrial volumes and left ventricular functions to determine the potential clinical use for percutaneous mitral annuloplasty ...
Katircioglu Salih Fehmi - - 2008
BACKGROUND AND AIM: Cardiac reperfusion injury is a well-described complication occurring after ischemia or following cardioplegic arrest. Various strategies have been developed to prevent ischemic reperfusion injury. The aim of this study was to assess the efficacy and applicability of the on-pump beating heart mitral valve surgery without cross-clamping the ...
Miwa Kunihisa - - 2008
BACKGROUND: Small heart syndrome has previously been reported as neurocirculatory asthenia, associated with a small heart shadow on a chest roentgenogram. This is characterized as weakness or fatigue even after ordinary exertion, palpitation, dyspnea, and fainting, resembling patients with chronic fatigue syndrome (CFS). HYPOTHESIS: Small heart syndrome may be prevalent ...
Selamet Tierney Elif Seda - - 2008
BACKGROUND: The purpose of this study is to identify independent echocardiographic predictors of mitral stenosis (MS)-related death or intervention in infants. Congenital MS is a rare and morphologically heterogeneous lesion with variable prognosis. Among patients diagnosed with MS in early infancy, echocardiographic factors associated with MS-related intervention or death have ...
Suh William M - - 2008
Accurate assessment of valvular hemodynamics is essential in the decision-making process when referring a patient for cardiac surgery who has suspected coexistent aortic and mitral valve disease. Often times, one valvular lesion is worse than the other, and the question of "prophylactically" replacing the less severe valve at the time ...
Lim D Scott - - 2008
OBJECTIVE: To describe our experience in a case series of patients requiring percutaneous direct ventricular puncture and sheath placement for diagnosis or intervention. BACKGROUND: Access to the right or left ventricle for percutaneous interventions is limited in patients with mechanical prostheses in either the tricuspid, or mitral and aortic positions. ...
Gültekin Nazmi - - 2008
We report an extremely rare case of cystic-tumor like formations that originated from the mitral valve tissue affected by verrucous endocarditis, leading to floppy mitral valve syndrome. These cystic tumoral formations were discovered during two-dimensional echocardiographic examination of a 46 year-old woman with cardiac symptoms of palpitation, dyspnea, and exertional ...
Sleeper M M - - 2008
The purpose of this study was to define the cardiovascular abnormalities present in young and adult cats affected with the lysosomal storage diseases mucopolysaccharidosis (MPS) I and MPS VI. Eighteen cats affected with MPS I and 10 cats affected with MPS VI were evaluated by physical examination, electrocardiography and echocardiography. ...
Pektok Erman - - 2008
Submitral left ventricular aneurysm is a rare cardiac pathology. Etiology remains still mysterious, but it is believed to be due to a congenital defect of the fibrous layer of the atrioventricular junction. Surgical closure of aneurysm rim is the therapy of choice, despite the diversity of surgical approaches and techniques. ...
Armen Todd A - - 2009
AIMS: Left ventricular remodelling leads to functional mitral regurgitation resulting from annular dilatation, leaflet tethering, tenting, and decreased leaflet coaptation. Mitral valve annuloplasty restores valve competency, improving the patient's functional status and ventricular function. This study was designed to evaluate the mechanisms underlying mitral valve competency after the implantation of ...
Suri Rakesh M - - 2008
OBJECTIVE: We sought to echocardiographically examine the early changes in left ventricular size and function after mitral valve repair or replacement for mitral regurgitation caused by leaflet prolapse. METHODS: Preoperative and early postoperative echocardiograms of 861 patients with mitral regurgitation caused by leaflet prolapse who underwent mitral valve repair or ...
Han Yuchi - - 2008
OBJECTIVES: This study sought to develop cardiovascular magnetic resonance (CMR) diagnostic criteria for mitral valve prolapse (MVP) using echocardiography as the gold standard and to characterize MVP using cine CMR and late gadolinium enhancement (LGE)-CMR. BACKGROUND: Mitral valve prolapse is a common valvular heart disease with significant complications. Cardiovascular magnetic ...
Cicekcioglu Ferit - - 2008
Today, mitral valve replacement is performed under cardioplegic arrest with cross-clamping of the ascending aorta. In the case reported here, mitral valve replacement was performed with an on-pump beating heart technique without cross-clamping the aorta because of diffuse adhesion around the tube graft. A 36-year-old man had undergone a Bentall ...
Wu Qingyu - - 2008
We successfully operated on a patient with a rare complication of left ventricular outflow tract obstruction after mitral valve replacement. In a 57-year-old woman with previous mitral valve replacement, transthoracic echocardiography showed left ventricular outflow tract obstruction as a result of anterior displacement of the mitral prosthesis and local thickening ...
Adams David H - - 2008
Echocardiography is an essential tool in managing patients with mitral regurgitation. It allows identification and precise summation of anatomic lesions that lead to valve dysfunction. In this article, we highlight important aspects of mitral valve anatomy and pathophysiology as they pertain to surgical repair and discuss the critical role of ...
Ramos Ruben B - - 2008
Although sarcomas are the most frequent primary malignant tumor of the heart, they very rarely involve only the left heart valves. A 72-year-old woman was diagnosed with a severe mitral valve disease and referred for cardiac surgery. Preoperative transthoracic echocardiography revealed a cardiac mass involving the mitral and aortic valves. ...
Timek Tomasz A - - 2008
OBJECTIVE: Etiology-specific annular interventions and annuloplasty rings are now commercially available for the treatment of different types of mitral regurgitation; however, knowledge concerning the effects of local annular alterations on annular and left ventricular (LV) geometry is limited. METHODS: Seven adult sheep underwent implantation of eight radiopaque markers around the ...
Carapetis Jonathan R - - 2008
BACKGROUND: Rheumatic heart disease (RHD) is an important problem in developing countries; however, many cases are detected only when the disease has progressed to cardiac failure. Screening can detect cases earlier, but there are no screening guidelines. METHODS: We performed a cross-sectional screening study in Tonga among 5,053 primary school ...
Calvinho Paulo - - 2008
From Walton Lillehei, who performed the first successful open mitral valve surgery in 1956, until the advent of robotic surgery in the 21st Century, only 50 years have passed. The introduction of the first heart valve prosthesis, in 1960, was the next major step forward. However, correction of mitral disease ...
Kogan Alexander - - 2008
We have not found any reports to date of Takotsubo syndrome after cardiac surgery. Recently described Takotsubo syndrome is characterized by acute reversible left ventricular dysfunction with apical ballooning in the absence of coronary artery disease, and with chest pain and electrocardiographic changes mimicking acute anterior myocardial infarction, but with ...
Hung Jui-Tsung - - 2008
Severe visceral involvement in leukocytoclastic vasculitis is rare. We report here the case of a 2-month-old male infant with leukocytoclastic vasculitis who initially presented with fever and skin purpura. Endomyocarditis with mitral valve regurgitation, multiple hepatic infarction, and pulmonary hemorrhage developed later. The patient was successfully managed with an aggressive ...
Hoole Stephen P - - 2008
AIMS: The accurate postoperative assessment of mitral valve repair is important not only to document operative outcome, but also to confirm the functional morphology of the repaired valve. METHODS AND RESULTS: We assessed 25 consecutive patients following mitral valve repair with transthoracic real-time 3-dimensional echocardiography (RT3DE) and 2-dimensional echocardiography (2DE). ...
Lorusso Roberto - - 2008
OBJECTIVE: To evaluate postoperative outcome of emergency surgery for acute severe mitral regurgitation (ASMR) from a multicentre experience. METHODS: In six centres, 279 patients (mean age 62+/-14 years, 62% female) undergoing emergency surgery for ASMR from December 1986 to March 2007 were analysed and followed up. Aetiology included acute myocardial ...
Cicekcioglu Ferit - - 2008
BACKGROUND AND AIM OF THE STUDY: Although neurologic outcome after cardiac surgery is well-established, neurocognitive functions after beating heart mitral valve replacement still needs to be elucidated. The aim of this study was to compare preoperative and postoperative neurocognitive functions in patients who underwent beating heart mitral valve replacement on ...
Massad Malek G - - 2008
Surgical treatment of patients with congestive heart failure (CHF) has steadily advanced from rescue procedures such as aneurysmectomy, rupture repair, ventricular assist devices (VADs), and transplantation to procedures that can prevent or delay the progression of cardiac dysfunction and failure. The latter include operations such as coronary artery bypass grafting ...
Athanasiou Thanos - - 2008
Sub-valvular apparatus preservation after mitral valve replacement is not a new concept, yet to date there has been no quantification of its clinical effectiveness as a procedure and no consensus as to which surgical preservation technique should be adopted to achieve the best immediate and midterm clinical outcomes. This systematic ...
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