title: Lung Infarction due to Pulmonary Vein Stenosis after Ablation Therapy for Atrial Fibrillation Misdiagnosed as Organizing Pneumonia: Sequential Changes on CT in Two Cases.
abstract: Pulmonary vein (PV) stenosis is a complication of ablation therapy for arrhythmias. We report two cases with chronic lung parenchymal abnormalities showing no improvement and waxing and waning features, which were initially diagnosed as nonspecific pneumonias, and finally confirmed as PV stenosis. When a patient presents for nonspecific respiratory symptoms without evidence of infection after ablation therapy and image findings show chronic and repetitive parenchymal abnormalities confined in localized portion, the possibility of PV stenosis should be considered.
authors.affiliation: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea.
authors.forename: Mi-Ri
authors.initials: MR
authors.lastname: Kwon
authors.affiliation: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea.
authors.forename: Ho Yun
authors.initials: HY
authors.lastname: Lee
authors.affiliation: Department of Thoracic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea.
authors.forename: Jong Ho
authors.initials: JH
authors.lastname: Cho
authors.affiliation: Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea.
authors.forename: Sang-Won
authors.initials: SW
authors.lastname: Um
mesh_terms: D001281:Atrial Fibrillation / Q000601:surgery; D017115:Catheter Ablation / Q000009:adverse effects* / Q000379:methods; D003251:Constriction, Pathologic / Q000175:diagnosis / Q000000981:diagnostic imaging*; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D008168:Lung / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000175:diagnosis; D054060:Pulmonary Infarction / Q000000981:diagnostic imaging* / Q000473:pathology; D011667:Pulmonary Veins / Q000000981:diagnostic imaging / Q000503:physiopathology; D014057:Tomography, X-Ray Computed / Q000009:adverse effects; D014652:Vascular Diseases / Q000503:physiopathology
keywords: Complications; Pulmonary vein stenosis; Pulmonary venous infarction; Radiofrequency ablation