Pulmonary haemodynamics at rest and during exercise in patients with significant pulmonary vein stenosis after radiofrequency catheter ablation for drug resistant atrial fibrillation

Abstract

Significant stenosis/occlusions of one or two PV do not create pulmonary hypertension at rest during long-term follow-up. However, seven of the 11 patients develop pulmonary hypertension during exercise. All three patients with stenosis/occlusions of two PV were affected.