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Shape memory polymer ovarian vein embolisation in a patient with nickel allergy
CVIR Endovascular Pub Date : 2021-03-02 , DOI: 10.1186/s42155-021-00212-y
Davide Castellano , Andrea Boghi , Luca Di Maggio , Alessandro Rapellino , Daniele Savio

Ovarian vein embolization in pelvic varicocele is usually obtained using nitinol coils. These devices can not be used in patients with proven nickel allergy. Shape memory polymer is a new embolic material available to interventionalists. A patient presented with pelvic congestion syndrome requiring embolisation of the left ovarian vein. The target vessel consisted of two twisted branches, each 5–6 mm in diameter. The patient also had a known allergy to nickel. Considering the anatomy and allergy status, embolisation with polyurethane shape memory polymer vascular plugs was considered a good case strategy. The embolisation procedure was technically successful with the deployment of two shape memory polymer plugs into each of the two left ovarian vein branches. Follow-up magnetic resonance imaging at 4 months showed sustained occlusion of the treated vessels and the patient showed no signs of allergy to the implanted material. In conclusion, our case presented an opportunity to utilise a new embolic material and achieve a good outcome in a patient with an allergy that may have resulted in complications when using metallic implants.

中文翻译:

镍过敏患者的形状记忆聚合物卵巢静脉栓塞

通常使用镍钛合金线圈获得盆腔静脉曲张的卵巢静脉栓塞。这些设备不能用于已证明镍过敏的患者。形状记忆聚合物是介入医师可以使用的新型栓塞材料。出现盆腔充血综合征的患者需要左卵巢静脉栓塞。目标血管由两个扭曲的分支组成,每个分支的直径为5-6 mm。该患者还已知对镍过敏。考虑到解剖结构和过敏状态,聚氨酯形状记忆聚合物血管栓塞栓塞被认为是一种很好的病例策略。在两个左卵巢静脉分支的每一个中都部署了两个形状记忆聚合物塞,栓塞程序在技术上是成功的。4个月时的后续磁共振成像显示治疗血管持续闭塞,患者对植入的材料无过敏迹象。总之,我们的病例为使用新的栓塞材料并在过敏患者中取得良好结果提供了机会,该患者在使用金属植入物时可能会导致并发症。
更新日期:2021-03-02
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