左心房与肺静脉形态学特征对心房颤动射频消融术后早期复发的预测价值

The predictive value of left atrial and pulmonary vein morphological characteristics for early recurrence of atrial fibrillation after radiofrequency ablation

目的:基于左心房和肺静脉CT血管成像(CT angiography,CTA)评估左心房和肺静脉形态学特征与射频消融术后心房颤动(房颤)早期复发的临床相关性。方法:回顾性分析我院2018年8月—2022年10月首次行射频消融术的患者,测量相关影像形态学参数,并于初始治疗后定期规律随访。收集患者临床资料,依据术后3个月内随访结果,将患者分为复发组和未复发组,对比分析两组患者临床及影像资料。采用logistic回归分析房颤复发的危险因素。采用受试者工作特征(receiver operating characteristic,ROC)曲线验证危险因素的预测价值。结果:共纳入229例患者,其中复发组87例,未复发组142例。未复发组与复发组患者左心房横径[LAD:(3.72±0.55)cm vs (4.37±0.82)cm,P<0.001]、左心房横径/同层面胸椎椎体横径(LAVD:2.36±0.43 vs 2.83±0.66,P<0.001)、左上肺静脉上下径[LSPV1:(1.97±0.46)cm vs (2.20±0.66)cm,P=0.002]、左心房容积[LAV:(56.07±24.40)cm~3 vs (67.48±21.58)cm~3,P<0.001]、左心房球度(LASP:0.63±0.05 vs 0.58±0.08,P<0.001),以及饮酒史比例(16.9%vs 33.3%,P=0.004)均差异有统计学意义。多因素logistic回归分析结果显示,LAD(OR=1.002,95%CI:1.000~1.097,P=0.001)、LAV(OR=3.056,95%CI:2.821~3.327,P=0.003)、LASP(OR=1.000,95%CI:1.000~1.001,P=0.010)以及饮酒史(OR=10.392,95%CI:3.068~132.555,P=0.024)为房颤术后早期复发的独立危险因素。ROC曲线分析结果显示,LAD、LAV、LASP、饮酒史联合预测房颤射频消融术后早期复发的曲线下面积为0.793(95%CI:0.735~0.851,P<0.001),灵敏度为70.42%,特异度为73.56%。结论:左心房相关CTA指标LAD、LAV、LASP及饮酒史可有效预测房颤患者射频消融术后早期复发。

Objective To evaluate the clinical correlation between left atrial and pulmonary vein morphological characteristics evaluate by CT angiography(CTA) and early recurrence of atrial fibrillation after radiofrequency catheter ablation(RFCA).Methods:All patients who received the initial RFCA surgery in our hospital from August 2018 to October 2022 were retrospectively reviewed,and their image morphological parameters were measured,regular follow-up visits were conducted after the initial treatment.Clinical data were collected.Based on the 3 months' follow-up results after RFCA,patients were divided into the recurrence group and non-recurrence group.Clinical and imaging data of the two groups were compared.Logistic regression analysis was used to identify risk factors for recurrence of atrial fibrillation.The predictive value was validated by receiver operating characteristic(ROC) curves.Results:A total of 229 patients were included,with 87 in the recurrence group and 142 in the non-recurrence group.The left atrial diameter[LAD:(3.72±0.55)cm vs(4.37±0.82)cm,P<0.001],left atrio-vertebral diameter ratio(LAVD:2.36±0.43 vs 2.83±0.66,P<0.001),left superior pulmonary vein diameter[LSPV1:(1.97±0.46)cm vs(2.20±0.66)cm,P=0.002],left atrial volume[LAV:(56.07±24.40)cm~3 vs(67.48±21.58)cm~3,P<0.001],left atrial sphericity(LASP:0.63±0.05 vs 0.58±0.08,P<0.001),and the proportion of alcohol history(16.9% vs 33.3%,P=0.004) were significantly different between the recurrence group and the non-recurrence group.Multivariate logistic regression analysis showed that LAD(OR=1.002,95%CI:1.000-1.097,P=0.001),LAV(OR=3.056,95%CI:2.821-3.327,P=0.003),LASP(OR=1.000,95%CI:1.000-1.001,P=0.010),and alcohol history(OR=10.392,95%CI:3.068-132.555,P=0.024) were independent risk factors for early postoperative recurrence.The ROC analysis results showed that the area under the curve for predicting early recurrence of atrial fibrillation after RFCA using the multi-factor combination of LAD,LAV,LASP,and alcohol history was 0.793(95%CI:0.735-0.851,P<0.001),with a sensitivity of 70.42% and a specificity of 73.56%.Conclusion:Left atrium-related CTA indicators LAD,LAV and LASP,as well as alcohol history,may predict the early recurrence of atrial fibrillation patients after RFCA.