title: Ventilation-perfusion mismatch resulting from iatrogenic pulmonary vein stenosis after radiofrequency ablation: a case report.
abstract: A lobar ventilation-perfusion mismatch is reported in a patient with right superior pulmonary vein stenosis, developing after radiofrequency ablation for atrial fibrillation. Radionuclide lung perfusion tomography was performed to assist with clinical management. Serial planar lung scintigraphy demonstrated no improvement in the perfusion abnormality despite interventional stenting. Iatrogenic pulmonary vein stenosis may potentially mimic pulmonary embolic disease.
authors.affiliation: Centre for Biomedical Imaging and Research, Department of Nuclear Medicine and Ultrasound, University of Sydney, Westmead Hospital, Sydney 2145, New South Wales, Australia. kakit41@gmail.com
authors.forename: Ka Kit
authors.initials: KK
authors.lastname: Wong
authors.forename: Simon M
authors.initials: SM
authors.lastname: Gruenewald
authors.forename: George
authors.initials: G
authors.lastname: Larcos
mesh_terms: D001281:Atrial Fibrillation / Q000601:surgery; D017115:Catheter Ablation / Q000009:adverse effects*; D003251:Constriction, Pathologic; D006801:Humans; D007049:Iatrogenic Disease; D008168:Lung / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D055420:Perfusion Imaging / Q000379:methods; D010690:Phlebography; D011652:Pulmonary Circulation; D011667:Pulmonary Veins / Q000000981:diagnostic imaging / Q000503:physiopathology*; D011668:Pulmonary Veno-Occlusive Disease / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy; D015607:Stents; D015899:Tomography, Emission-Computed, Single-Photon; D016896:Treatment Outcome; D014692:Ventilation-Perfusion Ratio