摘要
目的 Carto系统可进行电解剖标测 ,显示心腔三维解剖结构。本研究通过Carto系统与常规标测方法指导消融治疗特发性室性心动过速 (室速 )的比较 ,评价其临床应用价值。方法 2 5例特发性室速患者 ,均未发现器质性心脏病。 10例应用Carto系统在相关心室标测 ,显示心室三维电激动图并指导消融 ,作为Carto组。另 15例在X线下常规标测和消融 ,作为常规方法组。比较两组的手术时间、曝光时间及放电次数、消融成功率、并发症和随访结果。结果 Carto组中有 6例左心室室速 ,4例右心室室速 ,均消融成功。常规方法组中 ,起源于左心室和右心室的室速分别为 9例和 6例 ,13例消融成功 ,成功率 87% ,1例右心室心尖部室速和 1例左心室室速不成功。Carto组与常规方法组相比较 ,手术时间无明显延长 [(10 6± 2 4)minvs (98± 19)min ,P >0 0 5 ],曝光时间缩短 [(10± 7)minvs(2 2± 15 )min ,P <0 0 1],放电次数减少 [(2± 2 )次vs(4± 5 )次 ,P <0 0 5 ]。两组均无并发症。随访 3～ 15个月 ,无复发病例。结论 本研究显示应用Carto系统标测和消融特发性室速安全有效 ,可实时三维重建心腔结构 ,附以电生理信息 ,较常规方法X线透视下定位准确可靠 ,明显缩短曝光时间 ,并通过其导航定位记忆功能 。
Objective Th e aim of this study is to assess the cli nical efficacy of electroanatomically gu ided mapping and radiofrequency ablation under Carto system for idiopathic ventr icular tachycardia(IVT)with com parison to conventional method Metho ds Twenty five patients with IVT were e nrolled into this study Ten cases who un derwent catheter ablation under the guid e of Carto system were assigned as the C arto group,while 15 patients who underwe nt conv entional mapping and ablation as the con trol group The procedural and fluoroscop ic time,the success rate,the number of e nergy application and the complications were compared between these two groups Results All 10 patients( 6 ca ses in left ventricle,4 cases in right v entricle)in Carto group had instan eous success ablation In the control group,9 and 6 cases originated from left ventric le and right ventricle respectively,the success rate was 87%(13 cases), one VT ori ginated from right ventricular apex and one left ventricular VT failed to cathet er ablation Comparing the Carto group with the control group,the procedure tim e had no significant difference[ (106±24)min vs(98±19)*!min,P>0 05],but th e fluoroscopic operation time shortened significantly[ (10±7)*!min vs(22±15)*!m in,P<0 0 1] and the number of energy applica tion reduced[(2±2) vs (4±5)[ BFQ],P<0 05] No complication occured in both groups After the follow up of 3～15 months,no recurrence was observed. No complication occured in both groups After the follow up of 3～15 months,no recurrence was observed. Conclusion This s tudy suggests that electroanatomically guided mapping and ablation is a safe and efficient me thod for patient with IVT The Carto elec troanatomical mapping system displays re al time three dimensional chamber struct ure with electrical information related to signal amplitude and activation time It is helpful to shorten fluoroscopic ti me and to reduce the number of energy ap plication
出处
《中华心律失常学杂志》
2002年第1期5-7,F003,共4页
Chinese Journal of Cardiac Arrhythmias
关键词
CARTO系统
电解剖标测
特发性室性心动过速
导管射频消融
Carto syste m
Electroanatomical mapping
Idiopathic v entricular tachycardia
Radiofrequency ca theter ablation
