通常来讲,室速多为表现为宽QRS波心动过速,而少见于窄QRS波心动过速,但是临床中仍有一部分室速表现为窄QRS波心动过速。本例Case发表在2013年德国Herz上一篇名为《Narrow QRS complex in idiopathic (fascicular) left ventricular tachycardia》的文章...
宽QRS波心动过速(wide QRS complex tachycardia, WCT)按激动来源大体可分为三类[1](图6):①室性心动过速(ventricular tachycardia, VT),约占80%左右;②室上性心动过速(supraventricular tachycardia, SVT)伴异常心室内传导;③心室起搏心律。其中,SVT经房室旁路前传者仅占1%~5%,包括各种预激性心动过速、逆向型房...
Ventricular tachycardia: Diagnosis of broad QRS complex tachycardia. Heart 2001;86:579-585.Wellens HJ. Ventricular tachycardia: diagnosis of broad QRS complex tachycardia. Heart. 2001;86:579-585.Wellens HJ. Ventricular tachycardia: Diagnosis of broad QRS com- plex tachycardia. Heart 2001; 86:579-...
一直以来,心电图宽QRS 波群心动过速(wide QRS complex tachycardias,WCT)的鉴别诊断仍然是一项极具挑战性的工作。 WCT 是指QRS 时间≥120 ms 连续出现3 次及以上、频率>100 次/min 的心动过速,其中起源于不同心室部位的室性心动过速(ventr...
QRS and Cycle Length Alternans During Paroxysmal Supraventricular Tachycardia: What is the Mechanism? Ventricular tachycardia in nonischemic heart failure (HF) arises from a nonreentrant mechanism most likely due to delayed afterdepolarizations from activat... P Maury,F Raczka,C Piot,... - 《J ...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook electrocardiogram (redirected fromQRS complexes) Thesaurus Medical Encyclopedia e·lec·tro·car·di·o·gram (ĭ-lĕk′trō-kär′dē-ə-grăm′) ...
Since the antidromic AV reentrant tachycardia over a Mahaim fibre has a typically left bundle braunch block (LBBB) morphology, it is easy to make a misdiagnosis of supraventricular tachycardia with functional LBBB or even of ventricular tachycardia particularly in the presence of negative concordance....
Signal averaging of the surface QRS complex predicts inducibility of ventricular tachycardia in patients with syncope of unknown origin: a prospective study. J Am Coll Cardiol 1987; 10: 775.Winters S, Stewart D, Gomes J. Signal averaging of the surface QRS complex predicts inducibility of ...
The differential di- agnosis of a regular tachycardia with a wide QRS complex on the 12-lead ECG: ventricular tachycardia, supraventricular tachycardia with aberrant intraventricular conduction, and supraventricular tachycardia with antero- grade conduction over an accessory pathway. Pacing Clin ...
Conclusion: The presence of ST segment depression/T wave inversion >1.5 mV on inferior leads during narrow QRS complex tachycardia, strongly suggests arioventricular reciprocating tachycardia. This finding is helpful for the promptly distinguisgment of orthodromic AVRT using a concealed accessory pathway....