目的探讨环肺静脉射频消融(CPVA)治疗心房颤动(简称房颤)患者术前血浆大内皮素-1(big ET-1)浓度能否预测术后房颤复发。方法 119例房颤患者接受单一术者进行的单次CPVA手术,其中阵发性房颤75例,持续性房颤44例。房颤复发定义为随访期内...目的探讨环肺静脉射频消融(CPVA)治疗心房颤动(简称房颤)患者术前血浆大内皮素-1(big ET-1)浓度能否预测术后房颤复发。方法 119例房颤患者接受单一术者进行的单次CPVA手术,其中阵发性房颤75例,持续性房颤44例。房颤复发定义为随访期内心电图和/或24h动态心电图证实房颤发作持续时间≥30s。术前血浆big ET-1浓度测定应用酶联免疫吸附分析法测定。结果在28±12个月的随访中,CPVA术后房颤复发率为30.3%(36/119),其中阵发性房颤为25.3%(19/75),持续性房颤为38.6%(17/44)。房颤复发患者术前血浆bigET-1浓度升高明显(1.29±0.77fmol/ml vs 0.66±0.49fmol/ml,P<0.001),无论是阵发性房颤(1.30±0.69fmol/ml vs 0.61±0.40fmol/ml,P=0.001),还是持续性房颤(1.29±0.87fmol/ml vs 0.78±0.63fmol/ml,P=0.007)均升高。多因素Logistic回归分析显示:血浆bigET-1与消融后房颤复发有关,能独立预测房颤复发(P<0.001)。亚组分析显示:阵发性房颤患者血浆bigET-1浓度升高与消融后房颤复发有关(P=0.001);持续性房颤患者血浆bigET-1浓度升高不能预测CPVA术后房颤的复发。结论 CPVA术前血浆bigET-1水平升高可能是阵发性房颤术后房颤复发的预测因素。展开更多
Background: We conducted a randomized, controlled trial of circumferential pulmonary-vein ablation for the treatment of chronic atrial fibrillation. Methods: A total of 146 patients with a mean(± SD) age of 57...Background: We conducted a randomized, controlled trial of circumferential pulmonary-vein ablation for the treatment of chronic atrial fibrillation. Methods: A total of 146 patients with a mean(± SD) age of 57± 9 years who had chronic atrial fibrillation were randomly assigned to receive amiodarone and undergo two cardioversions during the first three months alone(the control group) or in combination with circumferential pulmonary-vein ablation. Cardiac rhythm was assessed with daily telephonic transmissions for one year. The left atrial diameter and the severity of symptoms were assessed at 12 months. Results: Among the 77 patients assigned to undergo circumferential pulmonary-vein ablation, ablation was repeated because of recurrent atrial fibrillation in 26 percent of patients and atypical atrial flutter in 6 percent. An intention-to-treat analysis showed that 74 percent of patients in the ablation group and 58 percent of those in the control group were free of recurrent atrial fibrillation or flutter without antiarrhythmic-drug therapy at one year(P=0.05). Among the 69 patients in the control group, 53(77 percent) crossed over to undergo circumferential pulmonary-vein ablation for recurrent atrial fibrillation by one year and only 3(4 percent) were in sinus rhythm without antiarrhythmic-drug therapy or ablation. There were significant decreases in the left atrial diameter(12± 11 percent, P< 0.001) and the symptom severity score(59± 21 percent, P< 0.001) among patients who remained in sinus rhythm after circumferential pulmonary-vein ablation. Except for atypical atrial flutter, there were no complications attributable to circumferential pulmonary-vein ablation. Conclusions: Sinus rhythm can be maintained long term in the majority of patients with chronic atrial fibrillation by means of circumferential pulmonary-vein ablation independently of the effects of antiarrhythmic-drug therapy, cardioversion, or both. The maintenance of sinus rhythm is associated with a significant decrease in both the severity of symptoms and the left atrial diameter.展开更多
文摘目的探讨环肺静脉射频消融(CPVA)治疗心房颤动(简称房颤)患者术前血浆大内皮素-1(big ET-1)浓度能否预测术后房颤复发。方法 119例房颤患者接受单一术者进行的单次CPVA手术,其中阵发性房颤75例,持续性房颤44例。房颤复发定义为随访期内心电图和/或24h动态心电图证实房颤发作持续时间≥30s。术前血浆big ET-1浓度测定应用酶联免疫吸附分析法测定。结果在28±12个月的随访中,CPVA术后房颤复发率为30.3%(36/119),其中阵发性房颤为25.3%(19/75),持续性房颤为38.6%(17/44)。房颤复发患者术前血浆bigET-1浓度升高明显(1.29±0.77fmol/ml vs 0.66±0.49fmol/ml,P<0.001),无论是阵发性房颤(1.30±0.69fmol/ml vs 0.61±0.40fmol/ml,P=0.001),还是持续性房颤(1.29±0.87fmol/ml vs 0.78±0.63fmol/ml,P=0.007)均升高。多因素Logistic回归分析显示:血浆bigET-1与消融后房颤复发有关,能独立预测房颤复发(P<0.001)。亚组分析显示:阵发性房颤患者血浆bigET-1浓度升高与消融后房颤复发有关(P=0.001);持续性房颤患者血浆bigET-1浓度升高不能预测CPVA术后房颤的复发。结论 CPVA术前血浆bigET-1水平升高可能是阵发性房颤术后房颤复发的预测因素。
文摘Background: We conducted a randomized, controlled trial of circumferential pulmonary-vein ablation for the treatment of chronic atrial fibrillation. Methods: A total of 146 patients with a mean(± SD) age of 57± 9 years who had chronic atrial fibrillation were randomly assigned to receive amiodarone and undergo two cardioversions during the first three months alone(the control group) or in combination with circumferential pulmonary-vein ablation. Cardiac rhythm was assessed with daily telephonic transmissions for one year. The left atrial diameter and the severity of symptoms were assessed at 12 months. Results: Among the 77 patients assigned to undergo circumferential pulmonary-vein ablation, ablation was repeated because of recurrent atrial fibrillation in 26 percent of patients and atypical atrial flutter in 6 percent. An intention-to-treat analysis showed that 74 percent of patients in the ablation group and 58 percent of those in the control group were free of recurrent atrial fibrillation or flutter without antiarrhythmic-drug therapy at one year(P=0.05). Among the 69 patients in the control group, 53(77 percent) crossed over to undergo circumferential pulmonary-vein ablation for recurrent atrial fibrillation by one year and only 3(4 percent) were in sinus rhythm without antiarrhythmic-drug therapy or ablation. There were significant decreases in the left atrial diameter(12± 11 percent, P< 0.001) and the symptom severity score(59± 21 percent, P< 0.001) among patients who remained in sinus rhythm after circumferential pulmonary-vein ablation. Except for atypical atrial flutter, there were no complications attributable to circumferential pulmonary-vein ablation. Conclusions: Sinus rhythm can be maintained long term in the majority of patients with chronic atrial fibrillation by means of circumferential pulmonary-vein ablation independently of the effects of antiarrhythmic-drug therapy, cardioversion, or both. The maintenance of sinus rhythm is associated with a significant decrease in both the severity of symptoms and the left atrial diameter.
