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  • Title: Large pulmonary arteriovenous malformations: long-term results of embolization with AMPLATZER vascular plugs.
    Author: Kucukay F, Özdemir M, Şenol E, Okten S, Ereren M, Karan A.
    Journal: J Vasc Interv Radiol; 2014 Sep; 25(9):1327-32. PubMed ID: 24656179.
    Abstract:
    PURPOSE: To analyze the long-term results of endovascular treatment of large pulmonary arteriovenous malformations (PAVMs) using the AMPLATZER vascular plug (AVP; AGA Medical Corp, Golden Valley, Minnesota). MATERIALS AND METHODS: Between May 2007 and April 2011, 18 patients with 24 large PAVMs, defined as PAVMs that had a feeding artery with a diameter of ≥ 8 mm, were treated with AVP I or AVP II. A single AVP device was used for each PAVM. Aneurysmal sac diameters, sac perfusion, sac shrinkage, and complete resolution before and after the intervention were analyzed. Complete histories, laboratory values, physical examinations, and multidetector computed tomography images were reviewed. The mean occlusion time for AVP I and AVP II and the mean arterial oxygen saturation (SaO2) before and after the intervention were compared. RESULTS: The mean diameter of the feeding artery was 11.46 mm ± 2.18 (range, 8-13.3 mm). The mean occlusion time was 7.34 minutes ± 1.23 for AVP I and 6.25 minutes ± 1.12 for AVP II (P = .11). The mean SaO2 before and after the intervention was 63.71% ± 8.10% (range, 51%-76%) and 96.28% ± 0.49% (range, 96%-97%), respectively (P = .045). No major periprocedural complications were observed. The mean follow-up duration was 36.33 months ± 10.63 (range, 28-56 mo). During the follow-up period, there were no persistent sac perfusions, migration of the AVPs, major complications, or recanalizations. CONCLUSIONS: Treatment of large PAVMs with AVPs is an effective method for obtaining excellent long-term results. Embolization of large feeding arteries can be accomplished with AVPs without major complications.
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