نتایج جستجو برای: ablation
تعداد نتایج: 49404 فیلتر نتایج به سال:
PURPOSE To compare retrospectively the outcomes and complications of transcatheter arterial chemoembolization with drug-eluting embolic agents combined with radiofrequency (RF) ablation or microwave (MW) ablation in treatment of hepatocellular carcinoma (HCC). MATERIALS AND METHODS From 2003-2011, 89 patients with HCC received a combination therapy-transcatheter arterial chemoembolization plu...
BACKGROUND High rates of success using radiofrequency ablation energy have rapidly transformed catheter ablation from an investigational procedure to the nonpharmacological therapy of choice for symptomatic Wolff-Parkinson-White syndrome. Prior studies of radiofrequency accessory pathway ablation were based on a ventricular approach. Risks associated with prolonged arterial catheter manipulatio...
In the past decade, catheter ablation of atrial fibrillation (AF) has evolved as one of the most frequently performed procedures in tertiary arrhythmia centers worldwide. With the observation of the actively firing trigger originating from within the pulmonary veins (PVs), ablation strategies have focused at least in paroxysmal AF patients on complete isolation of the PVs. Several different abl...
BACKGROUND Substantial survival benefits exist for patients with early-stage breast cancer who undergo treatment with single-modality tamoxifen, ovarian ablation or suppression, or chemotherapy. To determine whether additional benefits exist with combined treatment, the Adjuvant Breast Cancer (ABC) Trials were undertaken. METHODS The ABC Ovarian Ablation or Suppression Trial randomly assigned...
To prospectively observe imaging features and local control of advanced lung tumors after radiofrequency ablation (RFA), and to propose a follow-up protocol post-ablation. 58 stage IV malignant lung tumor patients were enrolled in our study. One hundred of lung lesions were performed 77 sessions of RFA. Enhanced computed tomographic (CT) images of pre-ablation, 1-month, and 3-month post-ablatio...
Catheter ablation of atrial fibrillation (AF) is now an important therapeutic modality for patients with AF. There is considerable evidence available from several prospective randomized trials demonstrating that catheter ablation of AF is superior to antiarrhythmic drug therapy in controlling AF and that AF ablation improves quality of life substantially. This is especially true for patients wi...
AIMS To provide a comprehensive histopathological validation of cardiac magnetic resonance (CMR) and endocardial voltage mapping of acute and chronic atrial ablation injury. METHODS AND RESULTS 16 pigs underwent pre-ablation T2-weighted (T2W) and late gadolinium enhancement (LGE) CMR and high-density voltage mapping of the right atrium (RA) and both were repeated after intercaval linear radio...
In light of recent reports showing high incidence of silent cerebral infarcts and organized atrial arrhythmias following radiofrequency (RF) atrial fibrillation (AF) ablation, a review of its safety aspects is timely. Serious complications do occur during supraventricular tachycardia (SVT) ablations and knowledge of their incidence is important when deciding whether to proceed with ablation. Ev...
BACKGROUND Previous studies have suggested that systematic ablation of ganglionated plexi (GP) could increase the short-term success rate of radiofrequency ablation for atrial fibrillation, but the long-term efficacy of this approach is not fully established. METHODS AND RESULTS Twenty-four mongrel dogs were divided into 3 groups: epicardial GP ablation group 1 (n=8), epicardial GP ablation g...
OBJECTIVES The aim of this study was to compare--in patients with persistent and permanent atrial fibrillation (AF)--the efficacy and safety of left atrial ablation with that of a biatrial approach. BACKGROUND Left atrium-based catheter ablation of AF, although very effective in the paroxysmal form of the arrhythmia, has an insufficient efficacy in patients with persistent and permanent AF. ...
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