Search Results
Results 251 - 300 of 814
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Tibayan Frederick A - - 2003
BACKGROUND: Ring annuloplasty, the standard treatment for ischemic mitral regurgitation (IMR), abolishes normal annular dynamics and freezes the posterior leaflet. We examined the impact of Paneth suture annuloplasty during acute IMR on motion of the mitral annulus and leaflets in an ovine model. METHODS AND RESULTS: Eight sheep had radiopaque ...
Wierzbowska Karina - - 2003
BACKGROUND: The echocardiographic assessment of left ventricular diastolic function is usually based on mitral inflow parameters. The main limitation of this method is caused by pseudonormalisation of mitral inflow profile in advanced stages of diastolic dysfunction. AIM: To evaluate the value of propagation velocity (Vp) of early and atrial mitral ...
Kähäri Anders - - 2003
OBJECTIVE: To evaluate the usefulness of M-mode measurement of circumflex artery motion (CAM) for assessment of left ventricular (LV) function. DESIGN: Seventy-two patients referred for coronary angiography and LV angiography were included. Ejection fraction (EF) was calculated from LV angiography and systolic and diastolic parameters of CAM were measured by ...
Harikrishnan S - - 2003
Rheumatic heart disease (RHD) is still highly prevalent in developing countries like India, while the incidence of coronary artery disease (CAD) is on the rise. So the occurrence of a combination of RHD with CAD becomes more likely. We describe a patient with severe mitral stenosis and tight stenosis of ...
Goetz Wolfgang A - - 2003
BACKGROUND: We hypothesize that 2 tendon-like anterior basal stay chords, which remain taut during the entire cardiac cycle, limit the motion of the anterior mitral leaflet. METHODS AND RESULTS: Sonomicrometric crystals were implanted in 6 sheep at the insertion of stay chords at anterior mitral leaflet (S1 and S2), papillary ...
Hedberg Pär - - 2003
The biplane disc summation method is the recommended echocardiographic procedure to determine left ventricular (LV) ejection fraction (EF). Assessment of mitral annulus motion (MAM) or wall motion scoring index (WMI) has been reported to be less dependent on image quality compared with the recommended method, and proposed as a surrogate ...
Calafiore Antonio M - - 2003
Our recent experience with an autologous pericardium strip to obtain an overreducing posterior mitral annuloplasty is reported. From March 2001 to May 2002, 31 patients underwent this procedure to correct functional (n = 19) or postischemic (n = 12) mitral regurgitation. The length of the pericardium strip was always 4 ...
Kang I-Seok - - 2003
BACKGROUND: The importance of pulmonary regurgitation (PR) after repair of tetralogy of Fallot (TOF) is increasingly recognized, but little is known regarding its underlying mechanisms. This phase-contrast cine magnetic resonance (PC MR) study was performed to evaluate the relative contribution of each lung to total regurgitant volume. METHODS AND RESULTS: ...
Gupta B K - - 2003
We report on a patient with ankylosing spondylitis in association with mitral stenosis, mitral regurgitation, and aortic regurgitation. Despite extensive search of literature, we could not find association of mitral stenosis with ankylosing spondylitis. This report is the first to describe this association. Our findings are based on clinical and ...
Ubeyli Elif Derya - - 2003
Doppler ultrasound is a noninvasive technique that allows the examination of the direction, velocity, and volume of blood flow. Therefore, Doppler ultrasonography is known as reliable technique, which demonstrates the flow characteristics and resistance of arteries in various vascular disease. In this study, arterial Doppler signals recorded from 105 subjects ...
Ozdemir KuruluĊŸ - - 2003
BACKGROUND: The relation between systolic pulmonary artery pressure (PAP) and mitral stenosis (MS) has been poorly understood. Although the mitral valve area (MVA) is an important factor affecting the PAP, there is a wide spectrum of the PAP in patients with MS despite a similar MVA. So, we analyzed whether ...
Hosoi Satoshi - - 2003
PURPOSE: Multi-detector row CT (MDCT) is a new noninvasive modality for coronary artery imaging. Using the same MDCT data obtained for coronary artery assessment, left ventricular (LV) volumes such as end-diastolic (ED) and end-systolic (ES) volumes (EDV and ESV, respectively) and ejection fraction (EF) can potentially be assessed when ED ...
Khanlou Homayoun - - 2003
Mitral regurgitation is usually tolerated well in pregnancy, mainly because of left ventricular unloading due to the physiologic decrease in systemic vascular resistance (SVR). We report the case of a patient with mitral regurgitation who had pulmonary edema soon after delivery, which likely was due to a sudden increase in ...
Disney Patrick J S - - 2003
A 69-year-old woman developed acute pulmonary edema and severe mitral regurgitation (MR) 2 days following an uncomplicated AV nodal (AVN) ablation and insertion of VVI pacemaker for chronic atrial fibrillation. There was no history of significant mitral valve disease. Left ventricular function was normal and there was no evidence of ...
Pace Napoleone Carlo - - 2003
A very rare case of double outlet right ventricle with intact ventricular septum and unrestricted pulmonary flow was successfully palliated with pulmonary banding and delayed bidirectional cavopulmonary anastomosis and mitral avulsion. This is the only case of pulmonary banding with mitral avulsion reported in the literature for this type of ...
Saito Akira - - 2003
A 57-year-old man suffered recurrent mitral regurgitation after dehiscence of a 28 mm Physio ring 3 months after initial repair. We substituted a 30 mm Physio ring in reoperation, enabling successful mitral rerepair. This case points up the need for special care to be taken in determining the size of ...
Paelinck Bernard P - - 2003
A case of hypertrophic cardiomyopathy is presented with a restrictive mitral filling pattern but predominant systolic pulmonary vein flow velocities. A stepwise Doppler work-up including color M-mode, Doppler tissue imaging of the mitral annulus velocity and loading manipulations could clarify the underlying hemodynamic mechanisms. The Doppler data were correlated with ...
Dugal J S - - 2003
A 32-year-old male patient, a case of critical calcific mitral stenosis (following closed mitral valvotomy in 1989) was admitted for mitral valve replacement in September 2001. In hospital, he developed cardiogenic shock, pulmonary oedema and oliguria precluding surgery. An emergency percutaneous transatrial balloon mitral commissurotomy as a life-saving procedure in ...
Neuman Yoram M - - 2003
BACKGROUND: We examined the agreement between transthoracic echocardiography (TTE) and intraoperative prepump transesophageal echocardiography (TEE) in the assessment of left-sided regurgitant lesions and echocardiographic variables associated with grading discrepancies. METHODS: The TTE and prepump TEE studies of 54 patients undergoing aortic-valve replacement for aortic stenosis were reviewed. Agreement and correlation ...
Kanzaki Masato - - 2002
Bronchoplasty originally designed for patients with inadequate pulmonary function who cannot tolerate pneumonectomy, has recently yielded good results as well as offering an alternative to pneumonectomy. We describe a technique for plication of the proximal bronchial membranous portion when there is significant discrepancy in lumen size between the main and ...
Myrmel Truls - - 2002
BACKGROUND AND AIMS OF THE STUDY: The posterior mitral leaflet is divided into a variable number of scallops, and little is known about the role of scallopmalcoaptation in ischemic mitral regurgitation. The study aim was to assess whether acute ischemia in the posterolateral wall of the left ventricle would induce ...
Joseph George - - 2002
Ten patients who had anatomic alterations that cause impediments to successful completion of conventional transfemoral balloon mitral valvuloplasty (BMV) underwent transjugular BMV. They included six patients in whom conventional BMV could not be completed due to cardiac anatomic distortion; two patients with dextrocardia (one with visceroatrial situs solitus and the ...
Paraskevaidis Ioannis A - - 2002
The aim of this study was to analyze the components of mitral and pulmonary A waves and to construct a Doppler-derived left ventricular (LV) end-diastolic pressure (EDP) prediction model based on the combined analysis of transmitral and pulmonary venous flow velocity curves. Combined analysis of transmitral and pulmonary venous flow ...
Lai David T - - 2002
BACKGROUND: Three-dimensional dynamics of the 3 individual scallops within the posterior mitral leaflet during acute ischemic mitral regurgitations have not been previously measured. METHODS: Radiopaque markers were sutured to the mitral annulus, papillary muscle tips, and leaflet edges in 13 sheep. Immediately postoperatively, under open-chest conditions, 3-D marker coordinates were ...
Timek Tomasz A - - 2002
BACKGROUND: Ischemic mitral regurgitation (IMR) has been attributed to annular dilatation, papillary muscle (PM) displacement ("apical leaflet tenting"), or both. We compared the efficacy of reducing annular or subvalvular dimensions to gain more mechanistic insight into acute IMR. METHODS: Eight adult sheep underwent implantation of radiopaque markers on the LV, ...
Nomoto Takuya - - 2002
BACKGROUND: We reported in a previous study that the initial effects of left ventricular (LV) repair (LVR) for LV aneurysm were not long lasting. Angiotensin-converting enzyme inhibitor (ACE-I) is known to attenuate remodeling after myocardial infarction, and could be effective after LVR. METHODS AND RESULTS: Left ventricular aneurysms were developed ...
Mori Yoshiki - - 2002
OBJECTIVES: The purpose of the present study was to validate a newly developed three-dimensional (3D) digital color Doppler method for quantifying pulmonary regurgitation (PR), using an animal model of chronic PR. BACKGROUND: Spectral Doppler methods cannot reliably be used to assess pulmonary regurgitation. METHODS: In eight sheep with surgically created ...
Aikawa Keiko - - 2002
BACKGROUND AND AIMS OF THE STUDY: The relationship between structural abnormalities of the mitral apparatus and severity of functional mitral regurgitation (MR) was examined in patients with non-ischemic dilated cardiomyopathy. METHODS: Three-dimensional (3D) echocardiography was performed in 13 cardiomyopathy patients with mild (n = 5) or moderate to severe (n ...
Fine Deborah M - - 2002
A 3-year-old, 4-kg, castrated male domestic shorthair cat presented with signs of progressive respiratory distress. Thoracic radiographs showed pulmonary edema and pleural effusion. Echocardiography revealed a perforate membrane immediately above the mitral valve that divided the left atrium into proximal and distal chambers. The left auricle was proximal to the ...
Kron Irving L - - 2002
Mitral annuloplasty is the preferred surgical treatment for chronic ischemic mitral regurgitation. Although this is usually successful, leaflet restriction by apical displacement of the posterior papillary muscle tip may cause residual mitral regurgitation. Ventricular remodeling surgery is an effective procedure for surgical relocation of the posterior papillary muscle tip in ...
Nakajima Hiroyuki - - 2002
A 39-year-old man had cor triatriatum (Lucas-Schmidt type IA) with severe mitral regurgitation and atrial fibrillation. We performed resection of the anomalous septum between the accessory chamber and the left atrium, and conducted mitral valve repair and the maze procedure. The patient regained sinus rhythm and normal pulmonary venous drainage ...
Thirumalai P - - 2002
OBJECTIVE: To compare the immediate and long-term results, safety and complication profile of inoue balloon technique (IBT) and over the wire technique (OWT) in the treatment of rheumatic mitral stenosis. METHODS: We have compared the IBT in 104 patients and OWT in 40 patients. Preprocedural, immediate post-procedure and follow-up echocardiograms ...
Chan Kuang-Cheng KC Department of Anesthesiology, National Taiwan University, College of Medicine and Hospital, Taipei, Taiwan, - - 2002
Left ventricular outflow tract obstruction (LVOTO) is a critical complication after mitral bioprosthesis. Intraoperative transesophageal echocardiographic (TEE) monitoring enables early diagnosis and guides prompt subsequent treatment. Here we report a case of mitral heart disease who developed critical LVOTO following mitral xenograft replacement. The values of intraoperative TEE in the ...
Timek Tomasz A - - 2002
OBJECTIVE: Ring annuloplasty prevents acute ischemic mitral regurgitation in sheep, but it also abolishes normal mitral annular and posterior leaflet dynamics. We investigated a novel surgical approach of simple septal-lateral annular cinching with sutures to treat acute ischemic mitral regurgitation. METHODS: Nine adult sheep underwent implantation of multiple radiopaque markers ...
Lansac Emmanuel - - 2002
OBJECTIVE: The aortic and mitral valves have been studied in isolation, as if their functions were independent. We hypothesized that both valves work in synchrony on the basis of the shared myocardial pump and orifice. METHODS: Six sonometric crystals (7 sheep) were placed in both trigones, the midpoint of the ...
Watanabe Manabu - - 2002
We present a case of mitral annular aneurysm as a very rare complication developing soon after the surgical relief of subaortic stenosis. The cause of the aneurysm was considered to be the disruption of aorto-mitral intervalvular fibrosa at the initial operation. The surgical repair was successfully performed without compromising either ...
Cohen Laurence - - 2002
On the basis of our clinical experience, we hypothesized that the role of mitral valvar anomalies in the development and recurrence of discrete subaortic stenosis might be underestimated. From January 1994 to October 2000, the anatomy of the mitral valve and its relationship to the other components of the left ...
Iung Bernard - - 2002
Percutaneous mitral commissurotomy (PMC) is the treatment of choice in young patients who have favorable valve anatomy. It affords an event-free survival greater than 90% at 5 to 7 years,. Economic considerations are the main limitation of PMC in such patients, who are mainly encountered in developing countries. Mitral stenosis ...
Okada Yukikatsu - - 2002
BACKGROUND AND AIM OF THE STUDY: Although, in theory, the mitral annulus with the Duran flexible ring should change size and shape during the cardiac cycle, no clinical reports are available of such flexibility several years after surgery. The study aim was to evaluate mitral annulus flexibility at medium-term follow ...
Abaci Adnan - - 2002
OBJECTIVES: The vena contracta is the narrowest region of the regurgitant or stenotic jet just downstream the orifice and reflects the size of that orifice. This study was performed to assess the accuracy of the vena contracta width (VCW) in evaluating the severity of mitral stenosis (MS) and to compare ...
Timek Tomasz A - - 2002
BACKGROUND AND AIM OF THE STUDY: Septal-lateral (S-L) mitral annular diameter reduction is thought to be central to the efficacy of ring annuloplasty in correcting functional mitral regurgitation (MR), but rings perturb mitral annulus (MA) dynamic motion and limit posterior leaflet excursion. The effects of S-L annular cinching ('SLAC'), a ...
Skyrme-Jones R A - - 2001
Compared with mitral valve replacement as treatment for severe mitral stenosis, balloon mitral valvuloplasty (BMV) is a less invasive and well-established alternative therapeutic procedure. The best results are obtained with BMV in association with pliable, non-calcified valves. However, in the western world, mitral stenosis is predominantly a condition of the ...
Schwerzmann M - - 2001
AIMS: To assess the diagnostic accuracy of combined transmitral E wave velocity and reversed systolic pulmonary venous flow for the quantification of mitral regurgitation severity. METHODS AND RESULTS: Measuring forward and total left ventricular stroke volume, mitral regurgitation severity was assessed quantitatively by calculating the regurgitant fraction in 106 consecutive ...
Hurst J W - - 2001
This article emphasizes that the abnormalities noted on chest x-ray films of the chest can be diagnostic of giant left atrium. It also points out that a giant left atrium that occasionally occurs in patients with rheumatic mitral valve regurgitation does not occur in patients with mitral regurgitation due to ...
Selim A G - - 2001
Relapsing polychondritis (RP) is a rare inflammatory multiorgan disorder affecting cartilaginous structures and other connective tissues. Serious cardiovascular complications have been reported in patients with RP, the most frequent being aortic or mitral regurgitation and aortic aneurysms. Aortitis is a very rare complication. An unusual case of active aortitis in ...
Endrys J - - 2001
Balloon mitral valvuloplasty is the procedure of choice in a selected group of patients with significant mitral stenosis and suitable valve morphology. Experience in patients with cardiogenic shock is very limited. We report the case of a dying patient in cardiogenic shock, with pulmonary edema and severe hepatic damage after ...
Burns A C - - 2001
Acquired coronary artery to left atrial fistulas are rare and previously only described in mitral stenosis associated with left atrial thrombus or coronary arteriosclerosis. We present the case of a patient who developed a left circumflex coronary artery to left atrial fistula associated with mitral regurgitation 12 years after excision ...
Sitges M - - 2001
OBJECTIVES: We aimed to validate a new flow convergence (FC) method that eliminated the need to locate the regurgitant orifice and that could be performed semiautomatedly. BACKGROUND: Complex and time-consuming features of previously validated color Doppler methods for determining mitral regurgitant volume (MRV) have prevented their widespread clinical use. METHODS: ...
Colombo P C - - 2001
Early surgical intervention improves the outcome of patients with mitral regurgitation (MR) secondary to flail leaflet. Current criteria for the diagnosis of flail leaflet require a detailed definition of mitral valve anatomy, which is often challenging by transthoracic echocardiography (TTE) and, occasionally, even by transesophageal echocardiography (TEE). We studied 57 ...
Cicoira M - - 2001
This study was conducted to assess the accuracy of the estimated mitral regurgitant volume using both the left atrial filling volume and the systolic component of pulmonary vein flow expressed as the percent of its total. Since mitral regurgitation fills the left atrial chamber, the variation in atrial volume during ...
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