Search Results
Results 451 - 500 of 1079
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Lim Eric - - 2002
OBJECTIVES: The ability to detect residual regurgitation is important in the management of patients after mitral valve repair. We performed a study of 264 patients to determine the risk factors and to compare the accuracy of clinical assessment with that of echocardiography. METHODS: Operative details and valve pathologic data were ...
Harris Kevin M - - 2002
BACKGROUND: Ischemic mitral regurgitation is known to be associated with poor long-term outcome after coronary artery bypass grafting; however, our ability to alter that outcome with intervention on the valve is unclear. The decision to address the valve is most challenging for patients with only moderate mitral regurgitation, particularly with ...
Timek Tomasz A - - 2002
BACKGROUND: Acute posterolateral ischemia in sheep results in ischemic mitral regurgitation (IMR). While complete ring annuloplasty prevents acute IMR, partial annuloplasty rings may offer a more physiologic repair, but are untested in animal models of IMR. METHODS: Radiopaque markers were placed on the LV, mitral annulus (MA), and leaflets in ...
Matsumoto Hitoshi - - 2002
OBJECTIVES: We evaluated posterior annuloplasty results using a flexible linear reducer, especially as a cardiac surgical procedure. METHODS: Subjects were 24 patients consisting of 20 men and 4 women aged 7 to 79 years (mean; 61.3 years) with mitral regurgitation who underwent mitral valve reconstruction using a flexible linear reducer ...
Koelling Todd M - - 2002
BACKGROUND: Mitral regurgitation (MR) and tricuspid regurgitation (TR) frequently develop in patients with left ventricular systolic dysfunction (LVSD). Ventricular volume overload that occurs in patients with MR and TR may lead to progression of myocardial dysfunction. We hypothesized that MR and TR would provide markers of risk in patients with ...
Birnbaum Yochai - - 2002
Mitral valve regurgitation (MR) is a frequent Doppler echocardiographic finding in patients after acute myocardial infarction (AMI) and an independent predictor of long-term cardiovascular mortality. Reported risk factors include advanced age, prior myocardial infarction, infarct extension, and recurrent ischemia. During the early phase of AMI, transient ischemic MR is common ...
Bellone Andrea - - 2002
OBJECTIVE: The purpose of this study was to evaluate the acute effects of continuous positive airway pressure (CPAP) and bi-level airway pressure (BiPAP) on functional mitral regurgitation (MR) in patients with acute exacerbation of severe chronic congestive heart failure (CHF). DESIGN: A cross-over study. SETTING: A cardiopulmonary intensive care unit. ...
Ascione L - - 2002
To evaluate the prevalence and correlates of left ventricular thrombosis in patients with acute myocardial infarction, and whether the occurrence of early mitral regurgitation has a protective effect against the formation of left ventricular thrombus. Multicentre clinical trial carried out in 47 Italian coronary care units. 757 patients from the ...
Moainie Sina L - - 2002
Chronic ischemic mitral regurgitation (IMR) is produced by adverse postinfarction ventricular remodeling. We hypothesize that restraining infarct expansion reduces left-ventricular (LV) dilatation and the severity of mitral regurgitation. Two groups of 6 sheep had coronary snares placed around the second and third obtuse marginal coronary arteries and four piezoelectric transducers ...
Badhwar Vinay - - 2002
Mitral regurgitation (MR) is a frequent complication of end-stage cardiomyopathy. Historically, these patients were managed either medically or with mitral valve replacement, both associated with poor outcomes. We studied 150 patients with cardiomyopathy and severe MR who were managed with mitral reconstruction. One hundred fifty patients with 4+ MR, left ...
Tanaka Hiroyuki - - 2002
OBJECTIVES: Biventricular pacing (BVP) is a new strategy for treating patients with severe congestive heart failure (CHF) and intraventricular conduction delay, but its full potential and technicalities of BVP require further evaluation. We evaluated BVP benefits in 4 patients in whom we implanted a left ventricular lead during primary cardiac ...
Maden Orhan - - 2002
Cardiac involvement in hydatidosis is rare but because of potentially lethal complications, its recognition is of great importance. The authors present a 55-year-old woman admitted to the clinic with cardiac tamponade and moderate mitral regurgitation caused by a hydatid cyst located at the inferoposterior wall of the left ventricle.
Hamada Hiromichi - - 2002
Pulmonary regurgitation and older age at the time of repair may have a large impact late after repair on subsequent mortality of patients with tetralogy of Fallot. We aimed to identify whether age at repair, and preservation of the pulmonary valve, had a favorable influence on morbidity and mortality. We ...
Seo Philip - - 2002
A 77-year-old man was in good health until he complained of fatigue 3 weeks before presentation. Two weeks before admission, he developed gradually worsening shortness of breath. One week before admission, he developed a cough that initially was nonproductive but later was associated with hemoptysis.His past medical history was remarkable ...
Menicanti L - - 2002
OBJECTIVES: Functional mitral regurgitation in ischemic cardiomyopathy carries a poor prognosis, and its surgical management remains problematic and controversial. The aim of this study was to report the results of our surgical approach to patients who have had myocardial infarctions and have ventricular dilatation, mitral regurgitation, reduced pump function, pulmonary ...
Tedesco Michele Adolfo - - 2002
BACKGROUND: Comprehensive data are unavailable for cardiac abnormalities in patients with neurofibromatosis type 1 (NF1). The goal of this study was to evaluate the prevalence of cardiovascular abnormalities with echocardiography with color Doppler scan (ECHO) in a large, consecutive series of patients with NF1. METHODS: We studied 48 patients with ...
Murakami Tomoaki - - 2002
To clarify the contribution of afterload to left ventricular performance after repair of mitral regurgitation, we evaluated echocardiographically 8 children who had undergone surgical repair for isolated congenital mitral regurgitation. We examined the relationship between left ventricular systolic function and preload, afterload, and contractility. The left ventricular systolic function was ...
Badhwar Vinay - - 2002
Mitral regurgitation (MR) is a frequent complication of end-stage cardiomyopathy. Historically, these patients were managed either medically or with mitral valve replacement, both associated with poor outcomes. We studied 125 patients with cardiomyopathy and severe MR who were managed with mitral reconstruction. One hundred twenty-five patients with 4+ MR, left ...
Karabulut N - - 2002
The study was designed to investigate the effect of patient position on the detection of ureteral jets in normal pregnancy. The number of jets was recorded for 1 min using colour Doppler ultrasound in 26 healthy asymptomatic gravid women between 16 weeks and 34 weeks gestation. Each patient was examined ...
Levine Robert A - - 2002
Effective valve repair in patients with mitral regurgitation (MR) demands an understanding of its mechanism. In patients with ischemic heart disease and functional MR, which doubles late mortality, normal leaflets are apically displaced. This reflects an altered balance of forces acting on the leaflets: increased tethering forces restricting closure, resulting ...
Prifti Edvin - - 2002
BACKGROUND: The aims of this study were to determine early and midterm survival and freedom from reoperation, and to identify the predictors for poor postoperative outcome in children undergoing mitral valve (MV) repair owing to congenital malformations of the mitral valve. METHODS: Between January 1990 and February 2001, 94 consecutive ...
Yilmaz Hüseyin - - 2002
BACKGROUND: Peak dp/dt is one of the best isovolumic phase indexes of the myocardial contractile state requiring invasive procedures or presence of mitral regurgitation severe enough to measure in clinical practice by Doppler echocardiography. In this study, we sought the correlation between two noninvasive methods of measurements for left ventricular ...
Adams David H - - 2002
The best management for moderate mitral regurgitation (MR) at the time of coronary revascularization remains controversial. During the era preceding standardization of mitral annuloplasty, coronary artery bypass grafting (CABG) alone was the most common strategy for ischemic MR. This approach avoided mitral valve replacement, and there was an expectation that ...
Bolling Steven F - - 2002
Functional mitral regurgitation (MR) is a significant complication of end-stage cardiomyopathy, and may affect most heart failure patients as a pre-terminal or terminal event as it develops secondary to a change in the annular-ventricular apparatus and altered ventricular geometry; this results in incomplete leaflet coaptation.. Historically, surgery in MR patients ...
Tahta Stephen A - - 2002
BACKGROUND AND AIM OF THE STUDY: Functional ischemic mitral regurgitation (MR) can occur secondary to coronary artery disease. Controversy exists regarding management of these patients. Mitral valve annuloplasty in conjunction with coronary artery bypass grafting (CABG), accepted as the best treatment for severe MR, has been disputed for lesser degrees ...
Daliento Luciano - - 2002
Forty-five years after the first repair of tetralogy of Fallot we have sufficient data to describe the post-surgical history of these patients in terms of survival, quality of life and delayed complications. The long-term results of surgical repair during infancy and childhood are good in terms of health assessment and ...
Mohan U R - - 2002
The aims of this study were to evaluate cardiac involvement, assess risk factors and mortality, and define the outcome of cardiac abnormalities with age in the different types of mucopolysaccharidoses (MPS). The echocardiograms of 99 patients with MPS, aged 1-24 y (median age 10.3 y) were reviewed between 1978 and ...
Gillinov A M - - 2001
OBJECTIVE: This study was undertaken to compare mitral valve repair and replacement as treatments for ischemic mitral regurgitation. METHODS: From 1985 through 1997, a total of 482 patients with ischemic mitral regurgitation underwent either valve repair (n = 397) or valve replacement (n = 85). Patients more likely (P < ...
Bloch A - - 2001
BACKGROUND: For many years, cardiac auscultation has been the only available method for distinguishing between functional and organic murmurs; however, a more reliable differential diagnosis can now be achieved with Doppler echocardiography. The question remains as to whether a Doppler echocardiogram needs to be routinely recorded in the presence of ...
Caldeira C - - 2001
Interest in reconstructive surgery for ischemic cardiomyopathy has increased. We prospectively studied patients undergoing left ventricular reconstruction for ischemic cardiomyopathy. This report describes our technique for no-patch repair of left anterior descending aneurysms or akinetic areas. Patients are selected for surgery with discreet left anterior descending scar, usually detected by ...
Nagueh S F - - 2001
OBJECTIVES: This study was designed to compare the hemodynamic efficacy of nonsurgical septal reduction therapy (NSRT) by intracoronary ethanol with standard therapy (surgical myectomy) for the treatment of hypertrophic obstructive cardiomyopathy (HOCM). BACKGROUND: Nonsurgical septal reduction therapy has gained interest as a new treatment modality for patients with drug-refractory symptoms ...
Wong S - - 2001
BACKGROUND: Rheumatic fever remains a significant worldwide cause of mitral regurgitation (MR). We describe morphologic features of the rheumatic MR valve by quantitative 3-dimensional (3D) echocardiography. METHODS: Eight healthy subjects and 16 patients with less than moderate (n = 7) or more than or equal to moderate (n = 9) ...
Stanley A W AW - - 2001
Myocardial damage that results in dysfunction and remodeling changes left ventricular shape and size. Mitral competence requires the functional integrity of all components of the mitral apparatus. Progressive remodeling ultimately leads to geometric distortion of multiple elements of the mitral apparatus, resulting in functional mitral regurgitation (MR). In this article, ...
Raman J S - - 2001
The acorn cardiac support device (ACSD) is a device designed to treat heart failure by containing the heart to prevent further dilation. Six patients with symptomatic heart failure due to ischemic cardiomyopathy were treated surgically with ACSD. All patients simultaneously underwent coronary artery bypass grafting. Ventricular reconstruction was also performed ...
Menicanti L - - 2001
Ischemic mitral regurgitation is functional, and caused predominantly by ventricular dilatation, with secondary functional changes related to annular dilatation, tethering of leaflets from distension, and intraventricular widening between papillary muscles, in the absence of chordal rupture. The treatment includes dealing with the mitral-ventricular interaction by combining surgical ventricular restoration and ...
Timek T A - - 2001
BACKGROUND: Dilated cardiomyopathy is often associated with mitral regurgitation (MR), or so-called functional MR, the mechanism of which continues to be debated. We studied the valvular and ventricular 3D geometric perturbations associated with MR in an ovine model of tachycardia-induced cardiomyopathy (TIC). METHODS AND RESULTS: Nine sheep underwent myocardial marker ...
Novaro G M - - 2001
This case report illustrates the aggravation of a clinically silent left ventricular outflow tract obstruction by maintenance use of nifedipine in a patient with chronic severe aortic regurgitation, and demonstrates a potential limitation of vasodilator therapy in the management of this patient population. Recognition of this clinical scenario is imperative, ...
Thompson W R - - 2001
Experienced cardiologists can usually recognize pathologic heart murmurs with high sensitivity and specificity, although nonspecialists with less clinical experience may have more difficulty. Harsh, pansystolic murmurs of intensity grade > or = 3 at the left upper sternal border (LUSB) are likely to be associated with pathology. In this study, ...
Bolling S F - - 2001
Secondary MR is a complication of end-stage cardiomyopathy and is associated with a poor prognosis and is due to progressive mitral annular dilation and alteration in LV geometry. A vicious cycle of continuing volume overload, ventricular dilation, progression of annular dilation, increased LV wall tension and worsening MR and CHF ...
Abe T - - 2001
End-stage heart failure is associated with high rates of mortality. Obviously, heart transplantation is the ultimate surgical intervention for its treatment. However, this surgical option is severely limited by immunosuppressive drug morbidity and inadequate donor organ availability. Partial left ventriculectomy, the so called Batista procedure, has been proposed for the ...
Gallego P - - 2001
Left atrial dissection is an uncommon entity. It is generally associated with mitral valve replacement, but other predisposing factors should be considered in pathogenesis. We discuss a series of 11 patients with pathologically confirmed left atrial dissection who had been diagnosed previously by transesophageal echocardiography. Predisposing factors and surgical or ...
Scott R L - - 2001
Mitral regurgitation is a common valvular abnormality that can result in substantial morbidity. Primary care physicians should maintain a high index of suspicion for this disorder, especially in patients with symptoms of heart failure. The paramount concern is early identification of patients with mitral regurgitation and prompt referral to a ...
Bhat G - - 2001
BACKGROUND: Outcome after partial left ventriculectomy (PLV) is difficult to predict. Our goal was to determine if clinical measurements including exercise testing could predict outcome after PLV. METHODS: Sixteen patients with dilated cardiomyopathy had left ventricular ejection fraction, left ventricular end-diastolic diameter, amount of mitral regurgitation (MR), New York Heart ...
Mazur W - - 2001
Accurate evaluation of mitral regurgitation (MR) severity remains a challenging task in clinical cardiology. The importance of proper quantification of regurgitation cannot be underestimated because a delayed decision to replace or repair a defective valve may lead to worsening ventricular function and increased perioperative and long-term mortality. In this review ...
Davidoff R - - 2001
BACKGROUND: Fenfluramine hydrochloride was withdrawn from the market in September 1997 after reports of heart valve abnormalities in patients who used it. The prevalence of echocardiographic abnormalities and the clinical cardiovascular status of patients who received fenfluramine monotherapy remains uncertain. METHODS: A long-term, follow-up evaluation was undertaken in subjects who ...
Kumagai H - - 2001
A 21 year-old woman was admitted to our hospital because of chest and back pain after blunt chest trauma. On admission, consciousness was clear and a physical examination showed labored breathing. Her vital signs were stable, but her breathing gradually worsened, and artificial respiration was started. The chest roentgenogram and ...
Sassone B - - 2001
BACKGROUND: Functional mitral regurgitation is a hemodynamic adverse consequence of right ventricular apical pacing that profoundly modifies the contraction and relaxation of the left ventricle by inverting and delaying its activation sequence. The aim of this study was to analyze by Doppler echocardiography in the acute setting the true incidence ...
Thomson H L - - 2001
Patients with severe mitral regurgitation (MR) who are managed conservatively sustain excess mortality and morbidity. With improved mortality and morbidity rates being achieved with surgical management, cardiologists and cardiac surgeons are becoming more aggressive in treating patients with severe MR with surgery. Recent data indicate that even in the absence ...
Guedes C - - 2001
OBJECTIVES: Current knowledge of the cardiac manifestations of rheumatoid arthritis (RA) stems only from clinical and transthoracic echocardiography (TTE) studies. To determine the incidence and type of heart lesions in RA, we coupled TTE with transesophageal echocardiography (TEE), which is more sensitive and more accurate. METHODS: Thirty unselected RA patients ...
Calafiore A M - - 2001
BACKGROUND: Mitral valve (MV) procedure for dilated cardiomyopathy is becoming popular. We analyzed the indications to MV repair or replacement according to our 10-year experience. METHODS: From January 1990 to May 2000, 49 patients with dilated cardiomyopathy (12 idiopathic and 37 ischemic) underwent MV operation, 29 repair and 20 replacement. ...
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