Catheter Technique for Recording His Bundle Activity in Man
Benjamin J. Scherlag,Sun H. Lau,Richard H. Helfant,Walter D. Berkowitz,Emanuel Stein,Anthony N. Damato +5 more
TLDR
The use of this recording technique in man will facilitate diagnostic interpretation of the electrocardiogram and can be used in various investigations of atrioventricular and intraventricular conduction in man.Abstract:
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 stable recordings of His bundle activity in successive cardiac cycles. Right atrial pacing resulted in progressive lengthening of the P-H interval with increasing frequency but the H to S-wave interval remained constant at all rates. Similar lengthening of the P-H interval was produced during atrial pacing when pressure was applied to the carotid sinus. The use of this recording technique in man will facilitate diagnostic interpretation of the electrocardiogram and can be used in various investigations of atrioventricular and intraventricular conduction in man.read more
Citations
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References
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Journal ArticleDOI
A technique for ventricular pacing from the His bundle of the intact heart.
Journal ArticleDOI
Atrioventricular conduction in man: Effect of rate, exercise, isoproterenol and atropine on the P-R interval☆
TL;DR: There is a fine balance between heart rate and A-V conduction, and when the heart rate is increased by neurohumoral stimuli, there is a corresponding enhancement of A- V conduction.
Journal ArticleDOI
Electrical activity during the P-R interval.
TL;DR: The results obtained indicate that the method employed has several advantages among which are an absence of injury at the recording site and an applicability to chronic studies.
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A catheterization technique for His bundle stimulation and recording in the intact dog
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The intracardiac electrocardiogram of human atrioventricular conducting tissue
TL;DR: Deflections that satisfy the criteria proposed by experimental workers for excitation of the bundle of His or its right branch have been recorded on intracardiac electrocardiograms during cardiac catheterization in a patient with Ebstein's anomaly of the tricuspid valve.