Griffith法Brugada法诊断宽QRS性室上性心动过速

Study on the diagnosis of supraventricular tachycardia in broad complex tachycardia with Griffith's and Brugada's criteria

为了解Griffith法和Brugada法诊断宽QRS性室上性心动过速（SVT）的价值，选择34例心电图表现为宽QRS心动过速者，其中SVT25例，室性心动过速（VT）9例，均经心脏电生理检查证实，采用上述两法进行了比较和综合分析。结果发现，Griffith法诊断SVT的敏感性、特异性和假阴性率分别为76％、77．8％和24％；而Brugada法的则分别为80％、88．9％和20％；两者合用时分别为84％、88．9％和16％。4例SVT为右侧旁路前传者均不符合诊断标准。认为，Griffith法和Brusada法或二者合用对SVT合并原有束支阻滞或室内差异性传导者有较高的诊断价值，而对预激旁路前传的SVT诊断价值低。

Objective: To understand the value of Griffith'e and Brugada's criteria for the diagnosis of suparventricular tachycardia (SVT). Metbod: Thirty-four patients with broad complex tachycardia 25 of them were SVT and 9 of them were VT were enrolled. The definitive diagnosis was established by electrophysiological study. Two observers, who were unaware of the electrophysiology diagnosis,were invited to report on ECG. Results:By using Griffith's criteria the sensitivily,specitivity and rate of pseudo-negative for the diagnosis of SVT were 76 %, 77.8 % and 24%, respectively. The corresponding values by using Brugada's criteria were 80%, 88. 9% and 20%,and 84%, 88.9% and 16% by using combination of these two criteria, 4 casas with left lateral accessary pathways for antegrade conduction were not correctly diagnosed as SVT. Couclusion: Griffith's criteria and Brugadafe criteria are highly sensitive for the diagnosis of SVT with bundle branch block,but have little va1ue to identify antidromic AVRT.