应用α-氰基丙烯酸正丁酯胶经导管栓塞治疗肾动脉出血

Transcatheter embolization with N-butyl cyanoacrylate for renal arterial bleeding

目的探讨使用α-氰基丙烯酸正丁酯胶（N-butyl cyanoacrylate，NBCA）经导管栓塞治疗肾脏出血性疾病的有效性和安全性。方法2006年1月-2013年6月收集23例保守治疗无效肾出血患者，行NBCA胶经导管肾动脉栓塞治疗，其中20例（87％）单独使用NBCA胶，3例（13％）联合使用NBCA胶和其他栓塞剂（明胶海绵、微弹簧圈）。DSA造影显示假性动脉瘤10例，动静脉瘘8例，活动性出血5例。回顾性分析患者临床资料和影像资料，评价使用NBCA胶经导管栓塞术的技术成功率、临床疗效及手术相关并发症。结果23例患者均成功施行经动脉栓塞术，术后造影显示异常表现消失，手术成功率100％。术后2-3d出血症状消失，无复发出血病例，其中2例为凝血功能异常患者。术中、术后未观察到明显并发症。结论对于各种原因所致的肾出血性病变，经导管栓塞治疗中单独使用NBCA或NBCA联合其他栓塞材料是安全有效的，甚至对于凝血功能异常患者，NBCA也显示满意的止血效果。

Objective To discuss the effectiveness and safety of transcatheter embolization with N- butyl cyanoacrylate （NBCA） in treating renal artery bleeding. Methods During the period from Jan. 2006 to June 2013, transcatheter embolization with NBCA was carried out in 12 patients with renal arterial bleeding, who failed to respond to the conventional treatment. Of the 23 patients, only NBCA was used in 20 （80%）, and NBCA together with Gelfoam and/or micro-coils was employed in 3 （13%）. DSA showed that the lesions included pseudoaneurysm （n = 10）, arteriovenous fistula （n = 8） and active bleeding （n = 5）. The clinical and imaging materials were retrospectively analyzed. The technical success rate, clinical result and procedurerelated complications were recorded. Results Technical success was obtained in all 23 patients. Angiography performed after the transcatheter embolization showed that the abnormal vascular manifestations disappeared in all cases. The bleeding stopped at 2 or 3 days after the procedure, and no recurrence was observed. No obvious complications occurred during and after the treatment. Conclusion For renal bleeding due to various reasons, transcatheter embolization with NBCA only or with NBCA plus other embolic materials is safe and effective. Even for patients with poor coagulation function, NBCA can also get satisfactory result.