title: Electrocardiogram: his bundle potentials can be recorded noninvasively beat by beat on surface electrocardiogram.
abstract: The micro waveform of His bundle potential can't be recorded beat-to-beat on surface electrocardiogram yet. We have found that the micro-wavelets before QRS complex may be related to atrioventricular conduction system potentials. This study is to explore the possibility of His bundle potential can be noninvasively recorded on surface electrocardiogram.
  
  
  
  We randomized 65 patients undergoing radiofrequency catheter ablation of paroxysmal superventricular tachycardia (exclude overt Wolff-Parkinson-White syndrome) to receive "conventional electrocardiogram" and "new electrocardiogram" before the procedure. His bundle electrogram was collected during the procedure. Comparative analysis of PAs(PA interval recorded on surface electrocardiogram), AHs(AH interval recorded on surface electrocardiogram) and HVs(HV interval recorded on surface electrocardiogram) interval recorded on surface "new electrocardiogram" and PA, AH, HV interval recorded on His bundle electrogram was investigated.
  
  
  
  There was no difference (P > 0.05) between groups in HVsinterval (49.63 ± 6.19 ms) and HV interval (49.35 ± 6.49 ms). Results of correlational analysis found that HVSinterval was significantly positively associated with HV interval (r = 0.929; P < 0.01).
  
  
  
  His bundle potentials can be noninvasively recorded on surface electrocardiogram. Noninvasive His bundle potential tracing might represent a new method for locating the site of atrioventricular block and identifying the origin of a wide QRS complex.
authors.affiliation: The Cardiovascular Institute of the First Affiliated Hospital of Liaoning Medical University, Renmin Street, Jinzhou, 121000, Liaoning Province, China.
authors.forename: Gaopin
authors.initials: G
authors.lastname: Wang
authors.affiliation: The Cardiovascular Institute of the First Affiliated Hospital of Liaoning Medical University, Renmin Street, Jinzhou, 121000, Liaoning Province, China. liurenguanglaoshi@126.com.
authors.forename: Renguang
authors.initials: R
authors.lastname: Liu
authors.affiliation: The Cardiovascular Institute of the First Affiliated Hospital of Liaoning Medical University, Renmin Street, Jinzhou, 121000, Liaoning Province, China.
authors.forename: Qinghua
authors.initials: Q
authors.lastname: Chang
authors.affiliation: The Cardiovascular Institute of the First Affiliated Hospital of Liaoning Medical University, Renmin Street, Jinzhou, 121000, Liaoning Province, China.
authors.forename: Zhaolong
authors.initials: Z
authors.lastname: Xu
authors.affiliation: The Cardiovascular Institute of the First Affiliated Hospital of Liaoning Medical University, Renmin Street, Jinzhou, 121000, Liaoning Province, China.
authors.forename: Yingjie
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Respiration Medicine, The First Affiliated Hospital of Liaoning Medical University, Renmin Street, Jinzhou, 121000, Liaoning Province, China.
authors.forename: Dianzhu
authors.initials: D
authors.lastname: Pan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002036:Bundle of His / Q000503:physiopathology*; D017115:Catheter Ablation / Q000379:methods*; D004562:Electrocardiography / Q000379:methods*; D022062:Electrophysiologic Techniques, Cardiac / Q000379:methods*; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D020127:Recovery of Function / Q000502:physiology*; D015203:Reproducibility of Results; D013614:Tachycardia, Paroxysmal / Q000503:physiopathology* / Q000601:surgery; D013617:Tachycardia, Supraventricular / Q000503:physiopathology* / Q000601:surgery; D055815:Young Adult
keywords: Electrocardiogram; His bundle electrogram; His bundle potential; New wavelets