Search Results
Results 451 - 500 of 1170
< 5 6 7 8 9 10 11 12 13 14 15 >
Barakate Michael S - - 2002
BACKGROUND: This review examines the surgical management of acute superior mesenteric artery (SMA) occlusion and the impact of interventional radiology techniques. METHODS: Eight consecutive patients with SMA occlusion were treated at the Lismore Base Hospital, Lismore, NSW, Australia, from 1996 through to 2001 and of these, one patient was managed ...
Dweck Altoon - - 2002
We describe a patient with an intact spleen and moderately severe symptoms of Gaucher disease in whom, after initiation of (low-dose) enzyme replacement therapy (ERT), thrombocytosis (720 x 10(9)/l) was documented. Checking the International Gaucher Registry database revealed that this patient is the only nonsplenectomized patient of more than 1,000 ...
Antonicelli Roberto - - 2002
INTRODUCTION: Atrial flutter is a common sustained atrial tachyarrhythmia for which frequency increases with age. Ibutilide is a novel class III antiarrhythmic agent used for the rapid cardioversion of atrial fibrillation or atrial flutter. AIM: The aim of our study was to assess the use of ibutilide in a selected ...
Kirpizidis C - - 2001
OBJECTIVES: The effectiveness of oral quinidine for conversion of atrial fibrillation to sinus rhythm was evaluated in 49 patients with persistent atrial fibrillation on anticoagulation therapy. Atrial fibrillation was considered as persistent when the duration was longer than 3 days but less than 6 months. METHODS: Patients received orally one ...
Ageno W - - 2001
BACKGROUND: We studied the prevalence of atrial fibrillation within a large Italian inpatient population, and evaluated the use of antithrombotic therapy among these individuals. METHODS: A prospective cross sectional study (Phase 1) with a 1-year follow-up period (Phase 2) was conducted at a single Italian centre. During Phase 1, we ...
van den Berg M P - - 2001
BACKGROUND: Paroxysmal atrial fibrillation is associated with various symptoms, including dizziness, which presumably reflects hemodynamic deterioration. Given the importance of the autonomic nervous system in mitigating the hemodynamic effect of atrial fibrillation, we hypothesized that autonomic function would be predictive of the severity of dizziness. METHODS: The study group comprised ...
Gold M R - - 2001
INTRODUCTION: This study evaluated the safety and efficacy of a new dual-chamber implantable cardioverter defibrillator (ICD) to detect and treat atrial tachyarrhythmias in patients with drug-refractory atrial fibrillation (AF) and no indication for a ventricular ICD. METHODS AND RESULTS: A dual-chamber ICD (Medtronic 7250 Jewel AF) was implanted in 144 ...
Li W - - 2001
OBJECTIVE: The objectives were to study atrial and ventricular electromechanical function in patients long after Mustard repair for transposition of great arteries and to identify possible causes and physiologic disturbances in those with recurrent atrial flutter. METHODS: Electromechanical atrial and ventricular function was assessed in 22 patients (11 women) aged ...
Tanabe T - - 2001
BACKGROUND: The ostium of the superior pulmonary veins or superior vena cava has been reported to be an important source of the ectopic beats that initiate paroxysmal atrial fibrillation (PAF). The structural details of the atria in patients with idiopathic PAF, however, remain unknown. METHODS: We studied 113 patients (92 ...
Tükek T - - 2001
BACKGROUND: Paroxysmal atrial fibrillation (PAF), a common arrhythmia, is caused by the fractionated and nonhomogeneous propagation of sinus impulse. HYPOTHESIS: This study was undertaken to examine the effect of left atrial (LA) dimension and function on P-wave dispersion (deltaP) in unselected patients with PAF and health controls. METHOD: In this ...
Miyazaki S - - 2001
The purpose of this study was to determine whether parameters derived from transesophageal echocardiography (TEE) could predict thromboembolism in patients with chronic nonvalvular atrial fibrillation (AF). Eighty-nine patients, mean age 66+/-9 years, who underwent TEE in 1996 to 1999 were studied. The clinical endpoint was a thromboembolic event, including transient ...
Frykman V - - 2001
AIMS: To assess compliance to guidelines in the management of patients with atrial fibrillation. METHODS AND RESULTS: A total of 728 questionnaires were mailed to physicians with the intention of studying 'theoretical' compliance to practice guidelines. A retrospective evaluation of 200 records from consecutive patients hospitalized with atrial fibrillation was ...
Losay J - - 2001
BACKGROUND: In adults with atrial septal defect (ASD) and large right-to-left shunt, closure of the defect is recommended. Percutaneous closure is still rarely used in this population. This study presents the results of transcatheter closure with the Amplatzer occluder in such patients. METHODS AND RESULTS: We studied 44 consecutive adult ...
Schmidt H - - 2001
OBJECTIVES: The study was done to assess the prevalence of left atrial (LA) chamber and appendage thrombi in patients with atrial flutter (AFl) scheduled for electrophysiologic study (EPS), to evaluate the prevalence of thromboembolic complications after transesophageal echocardiographic (TEE)-guided restoration of sinus rhythm and to evaluate clinical risk factors for ...
Fujikawa K - - 2001
BACKGROUND: Nocturia is one of the major problems of elderly people. The possible causes of nocturia include irritation of lower urinary tract obstruction, disturbance of the fluid balance, and sleep disturbance. In a significant proportion of patients, the mechanism of nocturia is still unclear and a definitive method of treatment ...
O'Callaghan P A - - 2001
OBJECTIVE: To assess the changes in quality of life, arrhythmia symptoms, and hospital resource utilisation following catheter ablation of typical atrial flutter. DESIGN: Patient questionnaire to compare the time interval following ablation with a similar time interval before ablation. SETTING: Tertiary referral centre. PATIENTS: 63 consecutive patients were studied. Four ...
Jairath U C - - 2001
BACKGROUND: Interatrial block (IAB: P wave > or = 110 ms) is a strong correlate of left atrial (LA) enlargement and an important predictor of supraventricular tachyarrhythmias, notably atrial fibrillation and flutter. It is surprising that, despite its association with arrhythmias and its effects on the electromechanical properties of the ...
Brembilla-Perrot B - - 2001
OBJECTIVES: The purpose of the study was to look for the predictor factors of atrial proarrhythmic effects of class I antiarrhythmic drugs. BACKGROUND: Class I antiarrhythmic drugs may induce or exacerbate cardiac arrhythmias. The predictors of ventricular proarrhythmia are known. The predictors of atrial flutter with 1:1 conduction are unknown. ...
Dribben W H - - 2001
STUDY OBJECTIVE: Chest pain in the setting of cocaine use poses a diagnostic dilemma. Dobutamine stress echocardiography (DSE) is a widely available and sensitive test for evaluating cardiac ischemia. Because of the theoretical concern regarding administration of dobutamine in the setting of cocaine use, we conducted a pilot study to ...
Podnar T - - 2001
The aim of the study was to assess the morphology of secundum-type atrial septal defects (ASD) with a view to percutaneous closure using Amplatzer septal occluders (ASO). One hundred and ninety patients who underwent closure of isolated secundum-type ASD between September 1995 and January 2000 were included. The morphology of ...
Sippensgroenewegen A - - 2001
INTRODUCTION: Atrial activity on the surface ECG during premature beats and supraventricular arrhythmias frequently is obscured by the superimposed QRST complex of the previous cardiac cycle. This study examines the performance of a newly developed automatic QRST subtraction algorithm to isolate ectopic P waves from the preceding T-U wave. METHODS ...
Maounis T - - 2001
In a substantial number of patients, AF recurs after successful electrical cardioversion. The purpose of this study was to investigate if the atrial arrhythmias recorded immediately after cardioversion are associated with the risk of recurrence of the arrhythmia and to compare the prognostic significance of this parameter with that of ...
Oddsson H - - 2001
BACKGROUND: Some patients continue to have palpitations in spite of successful ablation of Wolff-Parkinson-White (WPW) syndrome. Recurrence of accessory pathways as well as unrelated arrhythmias may explain the symptoms. METHODS: We followed 194 consecutive patients after successful radiofrequency catheter ablation of overt (147) or concealed (47) WPW syndrome. The mean ...
Yang Y - - 2001
BACKGROUND: The purpose of our study was to define the incidence and mechanisms of atypical right atrial flutter. METHODS AND RESULTS: A total of 28 (8%) of 372 consecutive patients with atrial flutter (AFL) had 36 episodes of sustained atypical right AFL. Among 24 (67%) of 36 episodes of lower ...
Chotivittayatarakorn P - - 2001
Atrial flutter is an uncommon arrhythmia in children. The presenting features and treatment responses of two fetuses and six children with atrial flutter were presented. Two patients were diagnosed prenatally at 31 and 35 weeks' gestation. One patient was successfully controlled in utero by maternal administration of digoxin and the ...
Cross W - - 2001
This relatively new procedure is interesting, promising, and appears to be safe. These issues are currently being evaluated by the US FDA and in several other countries, most notably Canada. The procedure is based on Ronald A. Schachar's new theory of how accommodation occurs. The clinical course of the patients ...
Kodama M - - 2001
BACKGROUND: Clinical implications of mechanical alternans in patients with chronic heart failure have remained uncertain. In this study, prevalence, characteristics, and prognostic implications of mechanical alternans were investigated. METHODS AND RESULTS: Consecutive 51 patients with dilated cardiomyopathy underwent diagnostic cardiac catheterization using a micromanometer-tipped catheter. Under basal conditions, 7 of ...
Brockmeier K - - 2001
Both secundum atrial septal defect (ASD) and patent foramen ovale (PFO) have been closed interventionally using several different occluding devices. At a single institution we strived for interventional occlusion of interatrial communications using the Amplatzer device exclusively. During a study period of 22 months, we studied 48 patients ranging in ...
Berge E - - 2001
PURPOSE: Strokes in patients with atrial fibrillation are often due to large middle cerebral artery (MCA) infarctions, caused by cardiogenic emboli. The purpose of this study was to characterise the large MCA infarctions and to describe the prevalence and prognostic value of the hyperdense middle cerebral artery sign (HMCAS) in ...
Wiedemann K - - 2001
BACKGROUND: Panic attacks induced by administration of cholecystokinin tetrapeptide (CCK-4) have been evaluated as a valuable tool to investigate the neurobiological mechanisms involved in panic anxiety. The rationale to study the effects of natriuretic peptides on the CCK-4 response is derived from observations that atrial natriuretic peptide (ANP) is released ...
Wada Y - - 2001
Controversy exists regarding the influence of mitral regurgitation (MR) on thromboembolic risk in patients with atrial fibrillation. We aimed to investigate retrospectively a reduction of risk for stroke due to MR in atrial fibrillation and to evaluate the effectiveness of low-intensity anticoagulation therapy. In 313 patients with atrial fibrillation, transthoracic ...
Bienfait H P - - 2001
We report a young patient with a fatal cerebral embolism from an occult atrial myxoma. The patient died before echocardiography was performed and at autopsy the definite diagnosis was made. Our patient suffered from migraine of increasing frequency. The physical exercise of sexual intercourse was the precipitating factor of this ...
Landzberg M J - - 2001
The "tipping point," favoring closure of hemodynamically significant atrial septal defects (ASDs) in the adult, has occurred and is supported by strong clinical data, especially in patients who present with symptoms. Echocardiographic evidence of right ventricular volume overload as a correlate of significant left-to-right intracardiac shunting remains a prerequisite to ...
Elhendy A A Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minn 55905, - - 2001
To assess thromboembolic complications in cardioversions in patients with atrial fibrillation or flutter and a previous embolic event. The study population consisted of 104 patients with previous embolic events who underwent 128 electrical cardioversions for termination of atrial fibrillation or flutter. The primary outcome measure was successful cardioversion. Anticoagulants were ...
Anselme F - - 2001
BACKGROUND: Complete bidirectional isthmus conduction block (CBIB) was initially assessed by sequential detailed activation mapping at both sides of the ablation line during proximal coronary sinus and anteroinferior right atrium pacing. Mapping only the ablation line ("on-site" atrial potential analysis) was recently reported as a means of CBIB identification. The ...
Lai W W - - 2001
Because the outcome of a large clinical series of patients with juxtaposition of the atrial appendages (JAA) has not previously been reported, a retrospective study was performed on patients diagnosed with JAA at a tertiary medical center. Patients with JAA were identified through a computerized database search, and echocardiograms and ...
Li W - - 2001
OBJECTIVE: Echocardiography was used to study electromechanical atrial and ventricular function in adult patients with a 1-ventricle heart who were in sinus rhythm to better understand the recurrence of atrial flutter in these conditions. Patients who had recent atrial flutter, with and without the Fontan procedure, were compared with those ...
Nakagawa H - - 2001
BACKGROUND: The purpose of this study was to characterize the circuit of macroreentrant right atrial tachycardia (MacroAT) in patients after surgical repair of congenital heart disease (SR-CHD). METHODS AND RESULTS: Sixteen patients with atrial tachycardia (AT) after SR-CHD were studied (atrial septal defect in 6, tetralogy of Fallot in 4, ...
Hijazi Z - - 2001
Transesophageal echocardiography (TEE) has been employed successfully for guiding transcatheter device closure of secundum atrial septal defect (ASD) and patent foramen ovale (PFO). However, the use of TEE for device closure requires general anesthesia. Intracardiac echocardiography (ICE) can provide similar anatomical views that might replace the use of TEE for ...
Ghai A - - 2001
OBJECTIVES: The purpose of this study was to compare the clinical and echocardiographic features of adults who developed atrial tachyarrhythmias (ATs) late after a Fontan procedure with those who have remained free of arrhythmias. BACKGROUND: Atrial tachyarrhythmias are a frequent complication of the Fontan operation. However, the outcomes in adult ...
Glatter K - - 2001
BACKGROUND: Ibutilide is a class III drug that is used for the cardioversion of atrial arrhythmias, but it can cause torsade de pointes. Amiodarone also prolongs the QT interval but rarely causes torsade de pointes. There are no studies in which the concomitant use of the 2 agents was examined. ...
Ljungman P - - 2001
A retrospective study was performed to collect information regarding efficacy and toxicity of cidofovir (CDV) in allogeneic stem cell transplant patients. Data were available on 82 patients. The indications for therapy were cytomegalovirus (CMV) disease in 20 patients, primary preemptive therapy in 24 patients, and secondary preemptive therapy in 38 ...
Noga S J - - 2001
BACKGROUND: A PBSC graft containing 4-5 x 10(6) CD34(+) cells/kg is considered optimal in terms of durable engraftment. Tracking CD34 kinetics via point-of-care testing during PBSC mobilization could determine which (and when) patients will yield an optimal product. We evaluated whether microvolume fluorimetry (MVF) would be useful in optimizing PBSC ...
Vincelj J - - 2001
The aim of this study was to assess the diagnostic accuracy of transthoracic (TTE) and transesophageal echocardiography (TEE) for the detection of atrial masses. The authors' own experiences with the use of TTE and TEE images in the assessment of atrial masses are reported. These masses included tumors, thrombi, and ...
Uemura H - - 2001
OBJECTIVE: To determine the efficacy of anatomic biventricular repair by a combination of intraatrial and intraventricular re-routing in patients with isomerism of the left atrial appendages. METHODS: Anatomic biventricular repair by means of combined intraratrial and intraventricular re-routing was achieved in 5 of the 63 patients with left isomerism in ...
Bilgiç A - - 2001
We report our clinical experience with the newly developed Amplatzer device in transcatheter closure of nine atrial septal defects (ASDs), one ventricular septal defect (VSD), and one patent arterial duct (PDA). Eleven patients with ASD (age range 2.5-18 years) selected according to the location and size of the defect by ...
Alotti N - - 2001
Ischemia and reperfusion injury occur in cardiac operations using cardiopulmonary bypass (CPB). Little is known about the immunological and histopathological changes in the atrial tissue under these conditions. To investigate and compare multiple right atrial biopsy specimens by means of a self-developed pathological and immunohistochemistry panel. Thirty-six nonselected adult patients ...
Krupienicz A - - 2000
To compare the efficacy and safety of straight and J-shaped passive-fixation atrial leads we retrospectively analyzed the results of 100 consecutive implantations of atrial leads at one institution. There were seven cases of upgrades of VVIR to DDDR systems and in one case an active-fixation lead was chosen as a ...
Wooten M D - - 2000
A 57-year-old man with nodular rheumatoid arthritis was started on a combination of etanercept and methotrexate. After treatment for five months on this therapy, he presented with new-onset atrial fibrillation. While this report is anecdotal, any new drug warrants intense monitoring for unexpected toxicities in the post-marketing period. Etanercept is ...
Ristić A D - - 2000
It is still controversial whether the arrhythmias in acute pericarditis are of myocardial or pericardial origin. The aim of the present study was to investigate the occurrence of arrhythmias and conduction disorders in patients with acute pericarditis with no endomyocardial biopsy evidence of myocarditis (group 1: 40 patients, 65% males, ...
< 5 6 7 8 9 10 11 12 13 14 15 >