Noninvasive recording of His-Purkinje activity in man by ORS-triggered signal averaging.
نویسندگان
چکیده
منابع مشابه
Noninvasive Recording of His-Purkinje Activity in Man by QRS-Triggered Signal Averaging
Mobile instrumentation and a clinically applicable method have been developed for external His bundle recording. High gain signal amplification (105) filtering (30-300 Hz) and averaging (128 or 256 consecutive cycles) are used. Acquisition of signals arising in the P-R interval is triggered by the patient's QRS signal at the end of that interval. The precordial bipolar electrocardiogram is digi...
متن کامل[Noninvasive recording of His-Purkinje activity in man].
To clarify the etiology of the prepotentials (PPs) between the end of P wave and the onset of QRS complex (P'-R segment) in signal averaged electrocardiogram (SAECG), SAECG was recorded in 26 healthy volunteers and 15 patients with idiopathic left ventricular tachycardia (VT) and electrophysiologic study (EPS) was done in those 15 VT patients. The PPs which had three components (PP1, PP2, PP3) ...
متن کاملSurface Recording of His-Purkinje Activity
Efforts to record evidence of electrical activity from the body surface originating in the His bundle or bundle branches have been reported since 1973. Almost exclusively, these techniques have required digital averaging of 50-100 sequential cardiac cycles. For immediate diagnostic, therapeutic and prognostic application, recording on an every-beat basis is highly desirable. This is especially ...
متن کاملNoninvasive Recording of His-Purkinje Activity in Patients with Complete Atrioventricular Block
were simultaneously recorded. The filtered chest lead ECG was averaged to determine His-Purkinje activity (HPA). A simplified device, the "automated discrimination circuit," was used to selectively eliminate the superimposed atrial and ventricular potentials that are characteristic of complete AV block and unsuitable for signal averaging. The processed chest lead ECG was amenable to conventiona...
متن کاملCatheter technique for recording His bundle activity in man.
A technique for the routine recording of His bundle (H) activity in man using a bipolar or multipolar catheter is described. The recording catheter is inserted percutaneously, via the Seldinger method, into the right femoral vein and advanced fluoroscopically into the right atrium. Placement of the pre-formed curve at the catheter tip across the tricuspid valve in nine patients resulted in stab...
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ژورنال
عنوان ژورنال: Circulation
سال: 1978
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.58.1.95