Electrical Connections Between Pulmonary Veins
نویسندگان
چکیده
منابع مشابه
Electrical connections between pulmonary veins: implication for ostial ablation of pulmonary veins in patients with paroxysmal atrial fibrillation.
BACKGROUND Electrical disconnection of the myocardial extensions into arrhythmogenic pulmonary veins (PVs) is recognized as a curative technique for paroxysmal atrial fibrillation (AF). However, the presence of electrical connections between the PVs, which may make achievement of PV disconnection difficult, has not been systematically evaluated. METHODS AND RESULTS Forty-nine consecutive pati...
متن کاملElectrical connections between pulmonary veins in humans: evidence after radiofrequency ablation of the venoatrial junction.
A47-year-old man with an uncorrected ostium primum atrial septal defect complained of frequent episodes of paroxysmal atrial fibrillation since 1990. Class IC and III antiarrhythmic drugs failed to control the recurrences, and the patient was referred to our institution for electrophysiological evaluation. During the procedure, the focal origin of the atrial fibrillation episodes from the right...
متن کاملCorrelation between anatomy and electrical activation in canine pulmonary veins.
BACKGROUND The roles of complex muscle sleeve geometry and fiber orientation in the pulmonary veins (PVs) in wave-front propagation are poorly understood. METHODS AND RESULTS We mapped the left superior PV (LSPV, n=7) and left inferior PV (LIPV, n=4) of dogs with 420 bipolar electrodes (1-mm resolution) and performed detailed histological examination. In the anterior LSPV-left atrial (LA) jun...
متن کاملElectrical impulse conduction in pulmonary veins.
It has been documented that the cardiac musculature of many mammalia, including man, extends from the heart along the pulmonary veins to the lungs, and, at least in some rodentia, as far as the small venules, and that smooth muscle is not present (1-3). However, these reports are of structural studies only, and in the one publication where a speculation is made concerning the spread of the cont...
متن کاملIncidence, location, and cause of recovery of electrical connections between the pulmonary veins and the left atrium after pulmonary vein isolation.
AIMS The aim of this study was to reveal the incidence, location, and cause of recovery of the electrical connections (ECs) between the left atrium and the pulmonary veins (PVs) after the segmental ostial PV isolation (PVI). METHODS AND RESULTS Pulmonary vein mapping and successful PVI were performed using a computerized three-dimensional mapping system (QMS2trade mark) with a basket catheter...
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ژورنال
عنوان ژورنال: Circulation
سال: 2002
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.0000019585.91146.ab