Search Results
Results 401 - 450 of 1066
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Yamaguchi Atsushi - - 2003
OBJECTIVES: Mitral valve surgery for the correction of mitral regurgitation (MR) in patients with ischemic heart disease has been associated with poor prognosis. The criteria for selecting an appropriate surgical procedure are not clearly defined. The objectives of this study were to clarify the criteria for mitral valve manipulation and ...
Chockalingam Anand - - 2003
BACKGROUND AND AIM OF THE STUDY: Rheumatic fever (RF) incidence has declined dramatically in the West, but still accounts for a major percentage of cardiac debility in developing countries. The study aim was to analyze the incidence, clinical profile and echocardiography findings in acute RF over the past decade. METHODS: ...
Palta Sanjeev - - 2003
BACKGROUND AND AIM OF THE STUDY: Mitral regurgitation (MR) is frequent in patients with severe calcific aortic stenosis (AS). This complicates not only the clinical course of AS, but also its surgical management. The aim of the present study was to investigate the mechanism of genesis of MR in patients ...
Durakoglugil Murtaza Emre - - 2003
Congestive heart failure (CHF) due to hyperkinetic states can occur in systemic diseases and in arteriovenous fistulas. An 18 year old Turkish male patient complaining of dyspnea and palpitations, who had suffered a stab wound to his abdomen eight months earlier, was admitted to our clinic. Auscultation revealed a systolodiastolic ...
Fluture Adrian - - 2003
Valvular involvement is the most encountered form of heart disease in systemic lupus erythematosus (SLE). Immunoglobulin and complement deposition in the valvular structure will subsequently lead to Libman-Sacks vegetations, valve thickening, and valve regurgitation. Valvular stenosis is rarely seen. Involvement of the mitral valve is most frequently encountered. Valve disease ...
Adler O - - 2003
This report concerns an apparently healthy elderly woman who presented with gradually worsening mitral regurgitation secondary to chordae tendineae rupture leading to pulmonary edema in the presence of discrete subvalvular aortic stenosis with a severe gradient reflecting the left ventricular outflow tract obstruction. The gradual worsening of heart failure took ...
Johnson Tiffanie R - - 2003
BACKGROUND: When echocardiography is used to follow up cardiac patients on extracorporeal membrane oxygenation (ECMO), ejection fraction as a measure of ventricular function has been used to determine likelihood of survival after decannulation. We hypothesized that systemic atrioventricular (AV) valve regurgitation while on ECMO may be a better predictor of ...
Spencer Ariel U - - 2003
OBJECTIVES: Use of the heterotopic rat cardiac isograft model is limited by ventricular atrophy attributable to the left ventricle's non-working state. Previous studies indicate that increased left ventricular pressure-volume work minimizes atrophy. We used a simpler approach to increase ventricular work, imposing aortic regurgitation on the transplant. We hypothesized that ...
Gray Rosaire - - 2003
Patients after repair of tetralogy of Fallot are at increased risk of arrhythmic death. Clinical data suggest that pulmonary regurgitation predisposes to these arrhythmias, although the cellular electrophysiologic effects of pulmonary regurgitation are unknown. We induced pulmonary regurgitation in lambs, and 3 mo later, having quantified the pulmonary regurgitant (PR) ...
Galasko G I W - - 2003
AIMS: Heart failure is placing an increasing burden on society. This has led to calls for echocardiographic-based programmes to screen for left ventricular systolic dysfunction and other cardiac abnormalities. Echocardiography using new fully portable echocardiography devices would allow community-based cost-effective screening programmes once validated. This study was undertaken to evaluate ...
Giuffrida Angelo - - 2003
OBJECTIVE: Partial left ventriculectomy (PLV) (also known as Batista's Procedure) is a surgical procedure for treatment of dilated cardiomyopathy when cardiac transplant is contraindicated. Mitral valve replacement is needed because of mitral regurgitation as a consequence of annulus enlargement and papillary muscle resection. Bleeding and arrythmias are the main complications. ...
Azakie Anthony - - 2003
BACKGROUND: To determine the early and late outcomes of patients presenting with anomalous left coronary artery from the pulmonary artery who had repair by aortic reimplantation. METHODS: From January 1952 to July 2000, 67 patients presented with anomalous coronary artery from the pulmonary artery. Forty-seven patients who had repairs performed ...
He Shengqiu - - 2003
BACKGROUND AND AIM OF THE STUDY: Perturbations of leaflet geometry are the final end point through which left ventricular (LV) ischemia causes incomplete mitral leaflet closure and resultant mitral regurgitation (MR). Geometric inconsistencies observed with valvular or subvalvular structural alterations raise several questions. METHODS: A new in-vitro LV flexible bag ...
Szalay Zoltan A - - 2003
OBJECTIVE: Mitral regurgitation is a frequent finding in patients with end-stage cardiomyopathy predicting poor survival. Conventional treatment consists medical treatment or cardiac transplantation. However, despite severely decreased left ventricular function, mitral annuloplasty may improve survival and reduce the need for allografts. METHODS: From January 1996 to July 2002, 121 patients ...
Isomura Tadashi - - 2003
OBJECTIVE: Association of mitral regurgitation (MR) with ischemic cardiomyopathy (ICM) increases the degree of heart failure and its surgical management remains controversial. The aim of this study was to report the surgical results in patients with or without MR in association with ICM. PATIENTS AND METHODS: Ninety-two patients with ischemic ...
Grasby D C - - 2003
OBJECTIVE: To compare three grading systems previously described for the measurement of cerebral ventricular dilatation in preterm neonates using ultrasound scans and then to compare these with expert clinical judgement. METHODS: Eighty-one preterm neonates <1500 g birthweight or < 32 weeks' gestation, with normal, mild, moderate or severely dilated ventricles ...
Dekker André L A J - - 2003
Acute mitral regurgitation (MR) is present in 10% of patients presenting with cardiogenic shock. To stabilize these patients, intra-aortic balloon pumping (IABP) is recommended, but the mechanism of IABP support in these patients is unknown. This animal study was designed to describe the hemodynamic effect of intra-aortic balloon pumping during ...
Hvass Ulrik - - 2003
BACKGROUND: In patients with ischemic left ventricular dysfunction (LVD) and functional mitral regurgitation (FMR), restoring a more normal alignment between mitral annulus and laterally displaced papillary muscles (PM) may be beneficial in terms of mitral repair and regional dynamics. METHODS: Ten patients, 29 to 78 years old, with an ejection ...
Timek Tomasz A - - 2003
BACKGROUND: Acute posterolateral left ventricular ischemia in sheep results in ischemic mitral regurgitation, but the effects of ischemia in other left ventricular regions on ischemic mitral regurgitation is unknown. METHODS: Six adult sheep had radiopaque markers placed on the left ventricle, mitral annulus, and anterior and posterior mitral leaflets at ...
Hamner Chad E - - 2003
The surgical approach to ischemic mitral regurgitation (IMR) remains a topic of considerable controversy. Will coronary artery bypass alone suffice, or should the valve be intervened upon? The poor late survival of patients with IMR is well recognized, but it remains unknown if this can be altered by addressing the ...
Hayashi Motonori - - 2003
Though acute rheumatic fever (RF) is now rare in Japan, it continues to be an important disease condition that physicians should be prepared to diagnose and treat. We describe a patient with acute RF accompanied by transient aortic regurgitation (AR). The AR was detected only by echocardiography. There were no ...
Dagdelen Sinan - - 2003
It is well known that papillary muscle dysfunction may cause mitral regurgitation, however, there is not a standard technique to measure the papillary muscle function. The aim of this study is to investigate papillary muscle function by using tissue and strain rate Doppler echocardiography. METHOD: A study group (SG) of ...
Zingone Bartolo - - 2003
The need of alternatives to transplantation has lead to routinely reconsidering conventional surgery for selected patients with advanced heart failure. Although the recovery of ventricular contractility with revascularization sometimes restores ventricular function almost to normality while dramatically enhancing the quality of life, only a few patients with ischemic left ventricular ...
Block Peter C - - 2003
Mitral regurgitation (MR) associated with, ischemic, and degenerative (prolapse) disease, contributes to left ventricular (LV) dysfunction due to remodeling, and LV dilation, resulting in worsening of MR. Mitral valve (MV) surgical repair has provided improvement in survival, LV function and symptoms, especially when performed early. Surgical repair is complex, due ...
Keeffe B G - - 2003
Mitral regurgitation is a common finding on echocardiography, seen to some degree in over 3/4 of the population. Pathologic mitral regurgitation is a common hospital diagnosis, but the percent of patients with mitral valve disease who ever require surgical correction is very small. There are many etiologies of mitral regurgitation, ...
Kumanohoso Toshiro - - 2003
OBJECTIVE: The mechanism of higher incidence of ischemic mitral regurgitation in patients with inferior compared with anterior myocardial infarction despite less global left ventricular remodeling and dysfunction is controversial. We hypothesized that inferior myocardial infarction causes left ventricular remodeling, which displaces posterior papillary muscle away from its normal position, leading ...
Kittleson Mark D - - 2003
Previous studies have demonstrated that regurgitant fraction can be measured by using the proximal isovelocity surface area (PISA) method. For this study, we utilized this Doppler echocardiographic method to estimate the magnitude of mitral regurgitation in dogs with myxomatous mitral valve disease. Seventeen older, small dogs with chronic mitral regurgitation ...
Ammer Marcus - - 2003
We report the case of a 50-year-old man in whom a supracristal ventricular septal defect led to aortic regurgitation and, thus, to consecutive sterile perforation of the anterior mitral leaflet, culminating in the development of severe systolic and diastolic mitral regurgitation. Aortic regurgitation as a result of valve prolapse caused ...
Romano Matthew A - - 2003
Heart failure is one of the leading causes of hospitalization worldwide. Mitral regurgitation (MR) is a known complication of end-stage cardiomyopathy and is associated with a poor prognosis. Historically, these patients were managed medically and frequently with mitral valve replacement, both of which have unfavorable long-term outcomes. Over a 10-year ...
Gatti Giuseppe - - 2003
BACKGROUND: Unfortunately, mitral valve surgery for mitral regurgitation (MR) in patients with advanced dilated cardiomyopathy is generally associated with a high operative risk and a poor outcome. Some authors believe that only heart transplantation is the really effective surgical treatment. We analyzed our clinical and echocardiographic results after mitral repair ...
Williams Richard V - - 2002
Despite pathologic evidence of myocardial inflammation, the significance of myocarditis in children with acute rheumatic carditis remains controversial. Elevations in cardiac troponin I have been demonstrated in other forms of myocarditis. The purpose of our study was to determine if levels of cardiac troponin I are elevated, suggesting myocardial injury, ...
Sharma Rajesh - - 2002
BACKGROUND: Long-term follow-up of patients who underwent arterial switch operation for complete transposition of great arteries with anatomic left ventricular outflow tract obstruction (LVOTO) has rarely been brought into the focus. METHODS: Of 299 patients who underwent an arterial switch operation between January 1991 and January 2001, 23 patients had ...
Tischler Marc D. - - 2002
Notable advances have been made in the treatment of mitral regurgitation, especially the advances resulting from prolapse of the mitral valve with or without a flail leaflet. Prosthetic mitral valve replacement results in a high incidence of postoperative left ventricular systolic dysfunction. Recognition of the importance of the subvalvular apparatus ...
Fucci Carlo - - 2002
The timing of surgery in patients with chronic mitral regurgitation is a controversial issue. Left ventricular dysfunction progresses silently and is partly predictable; depressed left ventricular contractility sometimes accompanies a normal ejection fraction. Severe symptoms remain a clear recommendation for surgery. However several factors suggest that surgery should not be ...
Timek Tomasz A - - 2002
In six sheep, radiopaque markers were placed on the left ventricle (LV), the mitral annulus, the left atrium (LA), and the central edge of both mitral leaflets to investigate the effects of acute LV ischemia on atrial contraction, mitral annular area (MAA), and mitral regurgitation (MR). Animals were studied with ...
Grossmann Georg - - 2002
BACKGROUND: No dataexist to indicate whether transthoracic (TTE) and transesophageal echocardiography (TEE) are of comparable value for the detection and quantification of mitral regurgitation using the proximal flow convergence method. HYPOTHESIS: The study was performed to compare the value of TTE and TEE for the detection and quantification of mitral ...
Akar A Ruchan - - 2002
BACKGROUND AND AIMS OF THE STUDY: Surgery for ischemic mitral regurgitation (IMR) is required in 4-5% of patients subjected to coronary artery surgery, and may be challenging. The study aim was to determine outcome following mitral valve repair and myocardial revascularization for moderate-to-severe IMR. METHODS: A total of 102 patients ...
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 ...
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