1. Feasibility and efficacy of percutaneous pulmonary vein stenting for the treatment of patients with severe pulmonary vein stenosis due to fibrosing mediastinitis
Xing ZHOU ; Yanjie LI ; Yunshan CAO ; Hongling SU ; Yichao DUAN ; Xin SU ; Rong WEI ; Ai'ai CHU ; Yan ZHU ; Yan HUANG ; Min ZHANG ; Xin PAN
Chinese Journal of Cardiology 2019;47(10):814-819
Objective:
To evaluate the feasibility and safety percutaneous pulmonary vein intervention in patients with severe pulmonary vein stenosis (PVS) caused by fibrosing mediastinitis(FM).
Methods:
This retrospective analysis included 5 FM patients (2 male, 3 female, 54-77 years old) confirmed by clinical presentation and chest computed tomography (CT) scan from January to June 2018 who were from Gansu Provincial Hospital and Shanghai Chest Hospital. CT pulmonary angiography (CTPA) further revealed severe PVS caused by fibrotic tissue compression in mediastinum. After selective pulmonary vein angiography, gradually balloon angioplasty was used to expand the pulmonary vein and then stents were implanted in the pre-dilated stenotic pulmonary veins. Evaluation of therapeutic effect was made at 6 months after the procedure.
Results:
All of 11 serious compression PVS were treated with stent implantation (diameter: 7-10 mm, length: 17-27 mm). After stenting, degree of pulmonary vein stenosis decreased from (83±16)% to (12±4)% (