Document Detail

Diagnostic significance of the morphological change in the atrial electrogram during Para-Hisian pacing.
MedLine Citation:
PMID:  11194285     Owner:  NLM     Status:  MEDLINE    
Para-Hisian pacing (PHP), a pacing method to differentiate between conduction occurring over an accessory pathway (AP) from that over the atrioventricular node (AVN), is assessed essentially by comparing the timing in the atrial electrogams. Morphological change in the atrial electrograms is often observed during PHP, but its significance has not been investigated. Prior to the catheter ablation procedure, PHP was performed in 52 patients with an AP and in 36 patients with AV nodal reentrant tachycardia (AVNRT). The morphological change in the atrial electrograms, which was retrospectively assessed between the His bundle and proximal right bundle branch (HB-RB) captured and non-captured beats, was identified in 15 of 52 patients with an AP and in 26 of 36 patients with AVNRT. The atrial electrogram in the 6 of these 15 AP patients changed its morphology without overlapping the ventricular electrogram. All 6 AP patients exhibited a PHP pattern with the presence of 2 retrograde conduction routes, an AP and the AVN. In the patients demonstrating no morphological change in the atrial electrogram, 33 of 37 AP patients and all 10 AVNRT patients had only one retrograde conduction route. Morphological change in the atrial electrogram without overlapping the ventricular electrogram seems to have diagnostic significance indicating the presence of both AP and AVN conduction.
K Hirao; N Yamamoto; N Toshida; T Horikawa; K Motokawa; F Suzuki; K Azegami; K Hiejima
Related Documents :
2220635 - Clinical and electrophysiologic characteristics of patients with antidromic circus move...
7845815 - Treatment of patients with prior exit block using a novel steroid-eluting active fixati...
1706505 - Validation of a method for choice of pacing mode in carotid sinus syndrome with or with...
24777275 - Cerebrospinal fluid transferrin levels are reduced in patients with early multiple scle...
978665 - Acute leukemia in rheumatoid arthritis treated with cytotoxic agents.
2203305 - Apparent biliary pseudolithiasis during ceftriaxone therapy.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Japanese circulation journal     Volume:  64     ISSN:  0047-1828     ISO Abbreviation:  Jpn. Circ. J.     Publication Date:  2000 Dec 
Date Detail:
Created Date:  2001-01-17     Completed Date:  2001-05-17     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7806868     Medline TA:  Jpn Circ J     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  928-32     Citation Subset:  IM    
First Department of Internal Medicine, School of Medicine, Tokyo Medical and Dental University, Japan.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Atrial Function* / physiology
Atrioventricular Node / physiopathology
Cardiac Pacing, Artificial*
Catheter Ablation
Electrophysiologic Techniques, Cardiac / methods*
Heart Conduction System / physiopathology
Middle Aged
Retrospective Studies
Tachycardia, Atrioventricular Nodal Reentry / diagnosis,  physiopathology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Causes of late mortality in patients with disabling intermittent claudication.
Next Document:  Clinical surveillance of a thin bipolar pacing lead.