Electrical isolation of pulmonary veins with radiofrequency (RF) ablation has now been widely accepted for treatment of AF in which single antiarrhythmic medication has failed (6). RF has also been shown to maintain long-term sinus rhythm in chronic AF (7). Isolation of pulmonary veins with RF catheter ablation of pulmonary veins has an encouraging success rate (7,8). The recurrence of AF has b...

PULMONARY veins entering the right atrium or its tributaries constitute the entity of transposition of the pulmonary veins. The transposition may be complete, when all the veins enter the right heart, or incomplete, when only some of the pulmonary veins drain anomalously. We are reviewing our experiences with total and partial anomalies of pulmonary venous drainage because of the increasing sur...

PULMONARY veins entering the right atrium or its tributaries constitute the entity of transposition of the pulmonary veins. The transposition may be complete, when all the veins enter the right heart, or incomplete, when only some of the pulmonary veins drain anomalously. We are reviewing our experiences with total and partial anomalies of pulmonary venous drainage because of the increasing sur...

Bronchial supply plays an important role in both the protecting mechanisms and the pathogenic ones of many chronic inflammatory, infections or ischemic diseases of the lung. However, little is known regarding the bronchial supply development; the appearance of the connections to the functional pulmonary supply; the territory supplied by the bronchial veins. In this study, we follow the distribu...

PULMONARY veins entering the right atrium or its tributaries constitute the entity of transposition of the pulmonary veins. The transposition may be complete, when all the veins enter the right heart, or incomplete, when only some of the pulmonary veins drain anomalously. We are reviewing our experiences with total and partial anomalies of pulmonary venous drainage because of the increasing sur...

INTRODUCTION Pulmonary vein potentials reflect depolarization of muscle fascicles within the myocardial sleeves that surround the pulmonary veins. The response of pulmonary vein potentials to premature stimulation has not been described. METHODS AND RESULTS In 31 patients with paroxysmal atrial fibrillation referred for segmental isolation of the pulmonary veins, programmed stimulation with a...

In a subset of patients, atrial fibrillation is caused by rapidly firing foci that are often located in the pulmonary veins especially when fibrillation is paroxysmal. Histologic data show that myocardial tissue of the left atrial wall extends into the pulmonary venous walls. Both in dog and human pulmonary veins, arrangement of the myofibers is complex. Clinical and animal studies reveal both ...

Anomalous pulmonary venous return (APVR) is a rare cardiac anomaly defined as one or more pulmonary veins draining into a structure other than the left atrium, with venous return directly or indirectly to the right atrium. The most common form is partial APVR, in which one to three pulmonary veins drain into systemic veins or into the right atrium. We report the case of a woman diagnosed with p...

1. We have studied the extensibility of circumferential strips of main pulmonary artery and large pulmonary veins obtained at post mortem from patients of all ages, dying from conditions other than heart and lung disease. 2. The vessel strips were submitted to increasing loads in a tension balance. The pulmonary arteries were found to be readily extensible. This extensibility became less with i...