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Updated: Jul 9, 2026

Closure of a Patent Foramen Ovale (PFO): An Intervention Sequence
Published on: December 23, 2022
Transcatheter closure of bilateral multiple huge pulmonary arteriovenous malformations with homemade double-umbrella
Hongshan Zhong1, Ke Xu, HaiBo Shao
1Department of Radiology, Institute of Vascular Intervention, First Affiliated Hospital of China Medical University, No. 155 Nanjing Bei Street, Shenyang 110001, People's Republic of China. zhonghongshan@hotmail.com
Abstract:
A 28-year-old man underwent successful transcatheter occlusion of three huge pulmonary arteriovenous malformations (PAVMs) using homemade double-umbrella occluders and stainless steel coils. Thoracic CT with three-dimensional reconstruction and pulmonary angiography were used for treatment planning and follow-up. The diameters of the feeding vessels were 11 mm, 13 mm, and 14 mm, respectively. This report demonstrates the novel design and utility of the double-umbrella occluder, an alternative tool for treatment of large PAVMs.

