Search Results
Results 551 - 600 of 1258
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Merin O - - 1998
Repeat open-heart operations are becoming more frequent with a patient population at higher risk. Sternal re-entry poses the risk of possible damage to vital structures. These include laceration of the myocardium, especially the right ventricle, tearing of patent grafts and internal mammary grafts in particular, or dislodgement of emboli from ...
Mykén P S - - 1998
OBJECTIVES: Our objectives were to evaluate the long-term bioprosthetic and cardiac functional outcome after insertion (over a 10-year period) of a new-generation porcine zero pressure-fixed Biocor bioprosthesis, as well as to determine the echocardiographic accuracy for selection of patients requiring reoperation. The long-term systematic Doppler echocardiographic assessment after valve replacement ...
Del Sette M - - 1998
Microembolic signals (MES) have been described in patients with different types of prosthetic valves. The aim of our study was to compare prevalence of MES in patients with mono-leaflet and bi-leaflet valves, and to correlate them with different clinical and echocardiographic parameters. We evaluated 42 patients, 15 with mono-leaflet and ...
Tribouilloy C M - - 1998
OBJECTIVES: We sought to determine the reliability of the proximal isovelocity surface area (PISA) method for calculation of effective regurgitant orifice (ERO) of aortic regurgitation (AR). BACKGROUND: The ERO area can be calculated by the PISA method, but this method has not been validated in AR. METHODS: ERO calculation by ...
Lievense A M - - 1998
OBJECTIVE: Comparison of the occurrence, intensity and rate of high-intensity transient signals (HITS), measured in both middle cerebral arteries by transcranial Doppler ultrasound (TCD) after mechanical or homograft aortic valve implantation. EXPERIMENTAL DESIGN: TCD monitoring was performed by means of a pulsed Doppler ultrasound with two 2 MHz probes, stabilized ...
Martínez-Reding J - - 1998
BACKGROUND: Pregnancy can cause life-threatening complications in women with mitral stenosis. Frequently, there is an urgent need to increase the mitral valve area mechanically. In selected cases, percutaneous mitral balloon valvotomy (PMBV) has emerged as a safe and effective alternative to surgical commissurotomy. HYPOTHESIS: The study evaluates the effects of ...
Yotsumoto G - - 1998
BACKGROUND AND AIMS OF THE STUDY: This study reports the clinicopathologic characteristics of congenital bicuspid aortic valves necessitating surgical intervention. METHODS: Among 374 aortic valve procedures during the past 15 years, 63 cases of bicuspid aortic valve were encountered. Patients included 45 males and 18 females; mean age was 53 ...
Yeo T C - - 1998
OBJECTIVES: We sought to determine, using serial echocardiography, the hydrodynamic mechanisms involved in the occurrence of hemolysis after mitral valve repair. BACKGROUND: Recently, fluid dynamic simulation models have identified distinct patterns of mitral regurgitant flow disturbances in patients with mitral prosthetic hemolysis that were associated with high shear stress and ...
Kupferwasser I - - 1998
AIM: To compare the clinical and morphological characteristics of patients with Streptococcus bovis endocarditis with those of patients with endocarditis caused by other microorganisms. METHODS: 177 consecutive patients (Streptococcus bovis, 22; other streptococci, 94; staphylococci, 44; other, 17) with definite infective endocarditis according to the Duke criteria were included. All ...
Kawaguchi A T - - 1998
BACKGROUND: While partial left ventriculectomy (PLV) improves left ventricular energetic efficiency, concomitant reduction in mitral regurgitation may improve ventricular function. METHODS: Two hundred ninety-five patients undergoing lateral ventricular wall excision between the papillary muscles (lateral PLV) and 101 patients with an additional excision of papillary muscles and mitral valve replacement ...
Jalal S - - 1998
Four hundred and sixty-six patients (277 males, 189 females; mean age 23.2 years) diagnosed as cases of infective endocarditis during the past 15 years were retrospectively analysed. Two-thirds of patients belonged to the 15 to 35 years age group. The most common predisposing cardiac lesion was rheumatic heart disease seen ...
Droste D W - - 1998
Patent foramen ovale (PFO), but not uncomplicated mitral valve prolapse (MVP), is a possible source of cardiac embolism to the brain. There are only a few reports on the frequency of clinically silent circulating microemboli in these two conditions. We performed 1-hour recordings of one middle cerebral artery in 4 ...
Akinci E - - 1998
OBJECTIVE: Recently, closed mitral commissurotomy (CMC) has been reexplored due to the concepts of less invasive valvular surgery. The feasibility of closed mitral commissurotomy via port access or limited thoracotomy by aid transesophageal echocardiography (TEE) was investigated in this clinical study. METHODS: Between August 1996 and April 1998, 42 patients ...
Galland R B - - 1998
OBJECTIVES: Increasing numbers of patients with small abdominal aortic aneurysms (AAA) are being diagnosed. The aim of this paper is to define the fate of those patients undergoing surveillance of small AAAs. SETTING: U.K. district general hospital. METHODS: A prospective study has been carried out of all patients undergoing surveillance. ...
Lin A E - - 1998
OBJECTIVE: Although cardiovascular malformations (CVMs) are well-recognized congenital anomalies in Turner syndrome, aortic dilation and dissection are less common and less familiar. Most of the relevant literature is limited to single cases reports or small series. We sought to increase the information available about the frequency and characteristics of aortic ...
Scott H - - 1998
We report the use of remifentanil as part of a general anaesthetic technique for a patient with mixed mitral valve disease, asthma and pre-eclampsia presenting for an emergency Caesarean section. The use of remifentanil was associated with stable haemodynamic variables during general anaesthesia. No clinically significant respiratory depression was noted ...
Dangel J H - - 1998
Cardiovascular abnormalities were evaluated in 64 children aged between 1 year 9 months and 25 years with mucopolysaccharidoses (MPS) and related disorders. A heart murmur was heard in 18 patients, but in only 6 was it characteristic for specific valvular lesions. Echocardiography was performed in 63 children. In one girl ...
Roguin A - - 1998
BACKGROUND: Tricuspid stenosis is a part of the chronically rheumatic heart. Although rare, when tricuspid stenosis does occur, it occurs in the setting of coexistent mitral and aortic valve disease. The natural course of patients with severe tricuspid stenosis is not well defined. The aim of this study is to ...
Stone B J - - 1998
The risk of gastric regurgitation and subsequent pulmonary aspiration is a recognised complication of cardiac arrest--a risk which may be further increased by the resuscitative procedure itself. The purpose of this study was to compare the incidence of gastric regurgitation between the bag valve mask (BVM) and laryngeal mask airway ...
Wijdicks E F - - 1998
BACKGROUND: Anticoagulant-related hemorrhage occurs with an incidence of approximately 1%/patient-year in mechanical heart valve recipients. Intracranial hemorrhage poses a difficult clinical choice; continuing anticoagulation therapy may enlarge the volume of the hemorrhage, early reinstitution of anticoagulation therapy may predispose patients to recurrence, and reversal of anticoagulation therapy may place patients ...
Bolognesi R - - 1998
Aortic intramural hematoma (IMH) is a rarely diagnosed pathological condition that is not well characterized to date. We diagnosed IMH in 4 of 31 patients with suspected aortic dissection admitted to our coronary care unit from 1992 to 1995. In all 4 cases, IMH was located in the ascending aorta. ...
Davidson J - - 1998
Results obtained with intra-aortic balloon pumps (IABPs) at Harbor-UCLA Medical Center from 1990 to 1995 were reviewed to analyze the indications for its use as well as the incidence and types of vascular complications that occurred. Of 86 patients (53 men and 33 women) in whom pumps were used, 66 ...
Panther R - - 1998
To assess the role of echocardiography in patients with syncope, we studied 439 consecutive adults who were referred over a 7-year period. Of all patients, 251 (57.2%) were women, who were generally younger than male referrals. All 439 patients had interpretable echocardiographic studies. Results showed that of patients younger than ...
Ferrari E - - 1998
OBJECTIVES: To examine the thoracic aorta of patients with severe cholesterol embolism (CE) by transoesophageal echocardiography (TOE). METHODS: The thoracic aorta of 20 consecutive patients with CE was compared with that in a control population matched for age and risk factors by TOE. Patients were prescribed steroids after CE was ...
Lutterman J - - 1998
OBJECTIVE: To describe the association between moyamoya syndrome and congenital heart disease and to discuss its clinical implications. Study Design. Retrospective analysis of a case series from two institutions. RESULTS: Five patients with moyamoya syndrome and structural congenital heart disease were identified. Coarctation of the aorta was present in 3 ...
Kjerulf A - - 1998
During a period of 3.5 years, endocarditis was suspected in 151 patients admitted to Rigshospitalet. 140 were available for this study. In 59 of the 140 patients, the diagnosis was confirmed, and 36 had positive blood cultures. Echocardiographic findings compatible with the diagnosis were present in 92% of the 59 ...
Rangel A - - 1998
BACKGROUND: The objective of this study is to evaluate the immediate result of the percutaneous mitral valvotomy in patients with previous surgical mitral commissurotomy, compared with patients considered ideal for the performance of the procedure. METHODS: The authors of this paper compared the immediate results of the percutaneous mitral valvotomy ...
Miani C - - 1998
The present study evaluated the differences in aerodynamic behavior between the 1990 Provox and 1986 Staffieri voice prostheses for total laryngectomy patients. Both prostheses were submitted to in vitro laboratory testing to assess their aerodynamic behavior under different conditions of air flow through the valve and tracheal side pressure. In ...
Pohl J F - - 1997
OBJECTIVE: Our goal was to determine how often a transvaginal sacrospinous colpopexy procedure can be done bilaterally. STUDY DESIGN: Between August 1993 and July 1996, 66 patients were prospectively evaluated for uterine prolapse (19 patients) and posthysterectomy vaginal vault prolapse (47 patients). Twenty-six patients (25 with posthysterectomy vaginal vault prolapse) ...
Ray J G - - 1997
Evidence suggests that the addition of acetylsalicylic acid (ASA) to warfarin therapy among patients with mechanical heart valves may reduce mortality, at a slightly higher bleeding risk. A survey was conducted of North American cardiac surgeons to assess whether they routinely use ASA in conjunction with anticoagulants among such patients. ...
Fukada J - - 1997
BACKGROUND: The insertion of bioprosthetic valves into the pulmonic position is not performed commonly because of uncertainty concerning the necessity and durability of such valves. METHODS: We reviewed the long-term outcome of 10 patients who underwent pulmonary valve replacement with bioprostheses between March 1985 and March 1997. A Carpentier-Edwards supraannular ...
Sprung C - - 1997
Since the beginning of 1995 the new hydrostatic dual-switch valve (DSV) was implanted in 35 adult patients with hydrocephalus of different etiology. 26 patients suffered from normotensive hydrocephalus (10 idiopathic and 16 symptomatic), and 9 patients from hypertensive hydrocephalus of various origin. The first 21 cases of this cohort were ...
Reyes A A - - 1997
BACKGROUND: The purpose of this study was to determine the incidence of moderate to severe tricuspid valve regurgitation in children with hypoplastic left heart syndrome (HLHS) undergoing staged surgical reconstruction, to assess the mechanisms responsible, and to evaluate the efficacy of surgical repair. METHODS AND RESULTS: We retrospectively reviewed clinical ...
Georgiadis D - - 1997
BACKGROUND AND PURPOSE: The purpose of this study was to evaluate the influence of inhalation of 100% oxygen on microembolic signal (MES) counts in patients with artificial cardiac valves. METHODS: A total of 134 outpatients were examined. Transcranial Doppler baseline monitoring (45-minute duration) was performed in all patients under resting ...
Padial L R - - 1997
Although aortic root dilation has etiologic and prognostic significance in patients with chronic aortic regurgitation (AR), no information is available regarding changes over time in aortic root size in patients with the entire spectrum of AR severity or how such changes relate to progression of the AR or to left ...
McCarthy P M - - 1997
OBJECTIVE: We sought to determine the role of partial left ventriculectomy in patients with dilated cardiomyopathy. METHODS: Since May 1996 we have performed partial left ventriculectomy in 53 patients, primarily (94%) in heart transplant candidates. The mean age of the patients was 53 years (range 17 to 72 years); 60% ...
Morelli S - - 1997
To assess the prevalence and the extent of cardiac involvement in patients with Behçet's disease and to investigate the possible causes that may predispose to this involvement, 30 patients affected by Behçet's disease and 30 normal control subjects were submitted to M-mode, two-dimensional, and Doppler echocardiographic evaluation. Moreover, antinuclear and ...
Roldan C A - - 1997
OBJECTIVES: We sought to determine prospectively the prevalence, evolution and embolic risk of valve excrescences in normal subjects and patients with and without suspected cardioembolism. BACKGROUND: Valve excrescences detected by transesophageal echocardiography (TEE) have been considered a cardioembolic substrate in selected patients. METHODS: Ninety healthy volunteers (Group I) and 88 ...
Rodriguez-Cintron W - - 1997
We report the second case of a right-to-left interatrial shunt due to a carcinoid tumor, which was successfully corrected by surgery. The patient had closure of a patent foramen ovale and tricuspid valve replacement. One and a half years after surgery, the patient had no symptoms related to heart disease.
Robinson D L - - 1997
Infective endocarditis (IE) is one of the most serious complications of bacteremia. Hemodialysis patients with prosthetic vascular access devices such as dual-lumen cuffed venous catheters and polytetrafluoroethylene (PTFE) grafts are at increased risk for bacteremia compared with patients with primary arteriovenous fistulae (PAVF). We present 20 cases of IE in ...
Shapira Y - - 1997
The incidence of cloth cover tears in fully covered Starr-Edwards valves, as assessed by autopsy or repeat surgery, is approximately 1% per patient-year. However, no echocardiographic study has explored this phenomenon. This study was designed as a one-time observational study and aimed to explore the ability of two-dimensional transthoracic echocardiography ...
Fowler V G VG - - 1997
OBJECTIVES: The purpose of this prospective study was to examine the role of echocardiography in patients with Staphylococcus aureus bacteremia (SAB). BACKGROUND: The reported incidence of infective endocarditis (IE) among patients with SAB varies widely. Distinguishing patients with uncomplicated bacteremia from those with IE is therapeutically and prognostically important, but ...
Hahn Kenneth - - 1997
Atrial transseptal catheterization is usually performed with fluoroscopic guidance of the needle. We report our experience with both fluoroscopic and transesophageal guidance in patients who would otherwise have been at risk by using only fluoroscopy. A total of eleven procedures were performed during a 4 year period. The relative contraindications ...
Vrooman H A - - 1997
RATIONALE AND OBJECTIVES: The authors developed an analytic software package for the objective and reproducible assessment of a single leg separation (SLS) in the outlet strut of Björk-Shiley convexoconcave (BSCC) prosthetic heart valves. METHODS: The radiographic cinefilm recordings of 18 phantom valves (12 intact and 6 SLS) and of 43 ...
Vilacosta I - - 1997
BACKGROUND: Acute aortic dissection is a cardiovascular emergency that requires prompt diagnosis and treatment. Transesophageal echocardiography is the current standard diagnostic imaging modality in many medical centers. Aortic intramural hematoma is a variant of aortic dissection whose natural history and prognosis have not been well studied. We performed transesophageal echocardiography ...
Harris K M - - 1997
Aortitis is an uncommon infection which may occur in patients with preexisting atherosclerotic disease of the aorta. The clinical features in two patients presenting with fever and nonspecific symptoms are reviewed. In these patients, transesophageal echocardiographic features of wall thickening and false aneurysm formation were suggestive of the diagnosis of ...
Giansante C - - 1997
The best anticoagulation level in patients with mechanical heart valve prostheses is still being debated. D-dimer, which detects the presence of cross-linked fibrin degradation products, has been demonstrated to be a useful marker of coagulation activation. This study was designed to verify whether heart valve prostheses in anticoagulated patients are ...
Odavić M - - 1997
A seven-year experience in prosthetic reconstruction of facial defects is presented. Surgical-prosthetic treatment was performed in 25 patients. Facial defect associated with organ loss of the midface was found in 4 (16%) patients. Isolated facial or midfacial organ defects were found in 21 (84%) patients, and dominant eye loss in ...
Vrandecic M - - 1997
OBJECTIVES: Time testing is essential with any valvular procedure, especially when a new concept is introduced such as the mitral stentless valve. Our purpose is to evaluate the results obtained over 4 years with this operation, particularly to attest the impact of preservation of annulo ventricular continuity on the long ...
Moriwaki R - - 1997
In this retrospective review 102 Indian and 80 Japanese patients with Takayasu arteritis were compared in regard to their clinical manifestations and angiographic findings. Regardless of nationality, most patients were initially affected in their teens or twenties. Japanese patients were female in a larger ratio compared with the ratio in ...
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