Pulmonary vein morphology in patients with paroxysmal atrial fibrillation initiated by ectopic beats originating from the pulmonary veins - Implications for catheter ablation
Pulmonary vein morphology in patients with paroxysmal atrial fibrillation initiated by ectopic beats originating from the pulmonary veins - Implications for catheter ablation
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DOI：
10.1161/01.cir.101.11.1274
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发表时间：
2000-03-21
期刊：
影响因子：
37.8
通讯作者：
Chen, SA
中科院分区：
文献类型：
--
作者：
Lin, WS;Prakash, VS;Chen, SA
背景——成功消融源自肺静脉（PV）的异位搏动可以消除阵发性心房颤动（PAF）。然而，关于由PV异位搏动引发的PBF患者PV结构的信息尚未报道。方法和结果我们研究了3组患者PV的形态并测量了它们的直径。第 I 组包括 52 名因 PV 出现局灶性心房颤动 (AF) 的患者（年龄 66+/-14 岁；44 名男性）。 II 组包括 8 名上腔静脉或终晶局灶性 AF 患者（年龄 50+/-10 岁；3 名男性），III 组包括 23 名对照患者（年龄 55+/-16 岁；17 名男性）。在对照患者中，11 例患有 AV 结，12 例患有 AV 折返性心动过速。房间隔手术后，使用双平面系统进行选择性PV血管造影，右前斜视图为30度，左前斜视图为60度，颅角为20度。与 TI 组和 III 组患者相比，I 组患者的右上 PV 和左上 PV（RSPV 和 LSPV）的口部和近端部分显着扩张。此外，与第III组患者相比，第II组患者的RSPV和LSPV口显着扩张。然而，3 组之间下 PV 的平均直径相似。比较第 I 组（根据异位病灶所在位置划分）的 3 个亚组中的个体 PV 直径，显示 PV 的非选择性扩张。结论：在由上 PV 异位搏动引发的 PAF 患者中，发现上 PV 口和近端部分的非特异性扩张。
Background-Successful ablation of ectopic beats originating from the pulmonary veins (PV) could eliminate paroxysmal atrial fibrillation (PAF). However, information about the structure of the PV in patients with PBF that: is initiated by PV ectopic beats has not been reported.Methods and Results We studied the morphology of the PVs and measured their diameters in 3 groups of patients. Group I included 52 patients (aged 66+/-14 years; 44 men) with focal atrial fibrillation (AF) from the PVs. Group II included 8 patients (aged 50+/-10 years; 3 men) with focal AF from the superior vena cava or cristal terminalis, Group III included 23 control patients (aged 55+/-16 years; 17 men). Of the control patients, Il had AV node and 12 had AV reentrant tachycardia. After an atrial transseptal procedure, selective PV angiography using a biplane system with a right anterior oblique view of 30 degrees, a left anterior oblique view of 60 degrees, and a cranial angle of 20 degrees was performed. The ostial and proximal portions of the right and left superior PVs (RSPV and LSPV) were significantly dilated in group I patients compared with those in groups TI and III. Furthermore, the ostia of the RSPV and LSPV were significantly dilated in group II compared with group III patients. However, the mean diameters of the inferior PVs were similar between the 3 groups. Comparisons of the individual PV diameters among the 3 subgroups of group I (which was divided according to where the ectopic focus was located) showed nonselective dilatation of the PV,Conclusions-Nonspecific dilatation of the ostia and proximal portion of superior PVs were found in patients with PAF initiated by ectopic beats from the superior PVs.