Related Experiment Video
Updated: Jun 12, 2026

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Lobar embolization for treatment of diffuse pulmonary arteriovenous malformations in hereditary hemorrhagic
Corie W Wei1, Marie E Faughnan, Alexandre Menard
1Department of Medical Imaging, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.
Pulmonary arteriovenous malformations (PAVMs) are abnormal communications between pulmonary arteries and pulmonary veins that are most commonly associated with hereditary hemorrhagic telangiectasia (HHT). The authors report a case of lobar artery embolization for the treatment of diffuse PAVMs in a patient with HHT who was experiencing recurrent transient ischemic attacks despite anticoagulation and multiple previous embolizations. The right lower lobar and interlobar arteries were embolized to achieve complete occlusion of multiple PAVMs in the right lower lobe and right middle lobe. In conclusion, lobar embolization can be considered for the relief of neurologic symptoms in patients with diffuse PAVMs.
Pulmonary arteriovenous malformations (PAVMs) are abnormal communications between pulmonary arteries and pulmonary veins that are most commonly associated with hereditary hemorrhagic telangiectasia (HHT). The authors report a case of lobar artery embolization for the treatment of diffuse PAVMs in a patient with HHT who was experiencing recurrent transient ischemic attacks despite anticoagulation and multiple previous embolizations. The right lower lobar and interlobar arteries were embolized to achieve complete occlusion of multiple PAVMs in the right lower lobe and right middle lobe. In conclusion, lobar embolization can be considered for the relief of neurologic symptoms in patients with diffuse PAVMs.
Related Concept Videos
Esophageal Varices-II: Clinical Features and Management
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol abuse, or...
Pulmonary Hypertension: Classification and Pathogenesis
There are various classifications for PH, each relating to different underlying causes and also...
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme (ECE). Of...
Esophageal Varices-I: Introduction
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care

