Clinical effect of cryoballoon catheter ablation in patients with atrial fibrillation Combining with heart failure
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摘要:
目的 评价冷冻球囊消融(CCA)治疗心房颤动合并心力衰竭患者的安全性和有效性。 方法 回顾性分析2020年6—11月在中国科学技术大学附属第一医院诊治的3例房颤合并心衰患者,均采用CCA治疗心房颤动,观察手术的安全性。术后收集3个月和6个月的心脏超声、动态心电图、美国纽约心脏病协会(NYHA)心功能分级和N基末端B型钠尿肽(NT-proBNP)结果,观察消融治疗有效性。 结果 3例患者均成功实现全部肺静脉隔离,患者1肺静脉隔离后转为心房扑动,经激动标测和拖带标测证实为三尖瓣峡部依赖典型房扑,三尖瓣峡部隔离后转为窦性心律;患者2、3肺静脉隔离后,电复律转为窦性心律,并在窦性心律下行心房电压标测,提示心房电压正常,未行基质改良;手术顺利,无并发症发生。随访6个月内,3例患者的心超参数明显改善(左室射血分数分别增加26%、32%和21%,左室舒张末内径及左房前后径较术前明显缩小),NYHA心功能分级较术前改善1~3级,NT-proBNP均降至正常范围。患者1在6个月随访时复发,再次行消融治疗,随访6个月无房颤发生。 结论 冷冻球囊消融治疗房颤合并心衰是安全且有效的,可以改善心功能和心脏结构,同时可以降低NT-proBNP。 Abstract:Objective To evaluate the safety and efficacy of cryoballoon catheter ablation (CCA) in patients with atrial fibrillation Combining with heart failure. Methods A retrospective analysis of 3 patients with atrial fibrillation Combining with heart failure diagnosed at the First Affiliated Hospital of the University of Science and Technology of China from June 2020 to November 2020 was performed to observe the safety of CCA treatment. The results of echocardiography, dynamic electrocardiogram, cardiac function grading and N-terminal B-type natriuretic peptide (NT-proBNP) were examined after 3 and 6 months to observe the effectiveness of CCA therapy. Results All patients successfully achieved complete pulmonary vein isolation (PVI). Patient 1 converted to atrial flutter after PVI, which was proven to be typical atrial flutter and dependent on tricuspid isthmus by activation and entrainment mapping, and then turned to sinus rhythm after tricuspid isthmus isolation. Electrocardioversion of patients 2 and 3 turned to sinus rhythm following pulmonary vein isolation, and atrial voltage was mapped under sinus rhythm. All three patients had neither matrix modification nor complications. Echocardiography significantly improved (LVEF increased by 28%, 32% and 21% at 6 months post-operation, respectively; LVEDD and LAD significantly reduced), and NYHA functional class all improved to Ⅰ. The BNP of all patients reduced to the normal range. However, recurrence was found in patient 1 at 6 months follow-up. The successful CCA treatment was administered again, and no AF occurred at 6 months follow-up. Conclusion CCA for patients with atrial fibrillation Combining with heart failure is safe, which may improve cardiac function and cardiac structure and reduce NT-proBNP. -
Key words:
- Atrial fibrillation /
- Heart failure /
- Cryoballoon catheter ablation
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表 1 3例心衰患者基线资料
项目 例1 例2 例3 性别 男性 女性 男性 年龄(岁) 47 68 56 房颤类型 阵发性房颤 持续性房颤 持续性房颤 房颤病程(月) 14 2 6 心衰病因分类 扩张型心肌病 扩张型心肌病 扩张型心肌病 NYHA分级 Ⅱ Ⅳ Ⅲ 脑卒中 是 否 是 高血压 否 是 是 糖尿病 否 否 是 LAD(mm) 44 43 46 LVEDD(mm) 61 61 57 LVEF(%) 41 39 37 CHA2DS2-VAS评分(分) 4 6 6 HAS-BLED评分(分) 1 3 3 NT-proBNP(pg/mL) 2 250 4 908 8 010 血肌酐(μmol/L) 107.3 70.0 77.8 血清尿素氮(mmol/L) 6.3 6.2 4.3 入院时心率(次/min) 57 101 105 长期用药 ACEI 否 否 否 ARNI 是 是 是 β受体阻滞剂 是 是 否 利尿剂 是 是 是 醛固酮受体拮抗剂 是 是 是 胺碘酮 是 是 是 达比加群酯 是 是 是 注:NYHA分级为美国纽约心脏病协会心功能分级;LAD为左房前后径;LVEDD为左室舒张末内径;LVEF为左心室射血分数;CHA2DS2-VAS评分为脑卒中风险评估;HAS-BLED评分为抗凝出血风险评估;NT-proBNP为氨基末端前体B型脑钠肽;ACEI为血管紧张素转换酶抑制剂;ARNI为血管紧张素受体脑啡肽酶抑制剂。 表 2 3例心衰患者的手术参数
项目 例1 例2 例3 手术时间(min) 132 200 135 X线曝光时间(min) 27.07 19.04 13.40 X线曝光量(mGy) 247 100 92 盐水灌注量(mL) 200 320 200 左上肺静脉 总时间t(s) 180 180 180 TTI时间(s) 15 - 28 最低温度(℃) -43 -51 -46 左下肺静脉 总时间t(s) 180 300 180 TTI时间(s) 18 42 37 最低温度(℃) -47 -43 -49 右上肺静脉 总时间t(s) 110 180 180 TTI时间(s) 20 38 38 最低温度(℃) -48 -32 -47 右下肺静脉 总时间t(s) 180 180 180 TTI时间(s) 13 30 21 最低温度(℃) -46 -47 -50 注:“-”表示无电位。TTI时间为肺静脉隔离术时间。 表 3 3例心衰患者术后随访情况
项目 例1 例2 例3 术后3个月 NYHA分级 Ⅰ Ⅰ Ⅰ LAD(mm) 44 39 40 LVEDD(mm) 52 56 55 LVEF(%) 56 67 68 NT-proBNP(pg/mL) - 87 251 术后6个月 NYHA分级 Ⅰ Ⅰ Ⅰ LAD(mm) 42 37 44 LVEDD(mm) 51 50 47 LVEF(%) 67 71 58 NT-proBNP(pg/mL) 43 45 111 注:“-”表示当时未检查。NYHA分级为美国纽约心脏病协会心功能分级;LAD为左房前后径;LVEDD为左室舒张末内径;LVEF为左心室射血分数;CHA2DS2-VAS评分为脑卒中风险评估;HAS-BLED评分为抗凝出血风险评估;NT-proBNP为氨基末端前体B型脑钠肽;ACEI为血管紧张素转换酶抑制剂;ARNI为血管紧张素受体脑啡肽酶抑制剂。 -
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