نتایج جستجو برای: pulmonary vein
تعداد نتایج: 284758 فیلتر نتایج به سال:
Background. We study the clinical significance and management of pulmonary venous obstruction in cancer patients. Methods. We conducted a prospective cohort study to characterize the syndrome that we term "pulmonary vein obstruction syndrome" (PVOS) between January 2005 and March 2014. The criteria for inclusion were (1) episodes of shortness of breath; (2) chest X-ray showing abnormal pulmonar...
BACKGROUND The use of second-generation cryoballoon for pulmonary vein isolation in patients with paroxysmal atrial fibrillation has demonstrated encouraging acute and mid-term results. Long-term outcome data are not yet available. METHODS AND RESULTS Fifty patients (18 women; mean age, 61±11 years; mean left atrial diameter, 43±5 mm) with paroxysmal (36 of 50 patients; 72%) or short-standing...
BACKGROUND The usual positioning of the Doppler sample volume to assess fetal pulmonary vein flow is in the distal portion of the vein, where the vessel diameter is maximal. This study was performed to test the association of the pulmonary vein pulsatility index (PVPI) with the vessel diameter. METHODS AND RESULTS Twenty-three normal fetuses (mean gestational age, 28.6+/-5.3 weeks) were studi...
OBJECTIVE Pulmonary vein isolation is curative in selected patients with atrial fibrillation. The objective of this study was to assess the feasibility and safety (midterm results) of video-assisted thoracoscopic epicardial pulmonary vein isolation. METHODS Twenty-seven patients (22 male patients) with atrial fibrillation (18 paroxysmal, 4 persistent, and 5 permanent; average age, 57 years) u...
Background: Concentration of tumor necrosis factor alpha (TNF-alpha) might be useful in selecting patients with paroxysmal atrial fibrillation (PAF) who will benefit the most from pulmonary vein isolation.
BACKGROUND We conducted a randomized, controlled trial of circumferential pulmonary-vein ablation for the treatment of chronic atrial fibrillation. METHODS A total of 146 patients with a mean (+/-SD) age of 57+/-9 years who had chronic atrial fibrillation were randomly assigned to receive amiodarone and undergo two cardioversions during the first three months alone (the control group) or in c...
A new era of atrial fibrillation (AF) treatment began in 1997– 1998 with the discovery that triggers within the pulmonary veins initiate AF and reports that elimination of these triggers is successful in treating AF in its paroxysmal form. However, in patients with persistent AF, the success rate of exclusive pulmonary vein isolation is substantially lower. To improve the outcome of persistent ...
A 61-year-old gentleman presented with palpitations. MRI demonstrated a large left atrial tumour infiltrating left pulmonary veins. These findings were confirmed during surgery. Histology was reported as pulmonary squamous cell carcinoma (Figs. 1 and 2). Fig. 1. Axial (a) and coronal (b) T1-weighted fast spin echo MR images show a mass extending into the left atrium via the left pulmonary vein....
Background:. Deep vein thrombosis and pulmonary embolism are rare complications of uterine myoma. There have been few reports on these associations. Case: A 41 year old para 1+0 presented with 20 weeks size fibroid uterus, which had compressed the pelvic veins and caused unilateral deep vein thrombosis of right leg with subsequent pulmonary embolism. After anticoagulation therapy, a total abdom...
http://dx.doi.org/10.1016/j.ejrnm.2016.07.004 0378-603X/ 2016 The Egyptian Society of Radiology and Nuclear Medicine. Production and hosting by Elsevier. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Abbreviations: AF, atrial fibrillation; AVN, atrioventricular node; AVNa, atrioventricular nodal artery; BB, Bachmann’s bundle; C...
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