Document Detail


Comparison of susceptibility of myopotential inhibition between AAI and VVI pacemakers.
MedLine Citation:
PMID:  3599408     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Susceptibility of unipolar AAI pacemakers to myopotential inhibition (MPI) was assessed in 10 patients by provocative maneuvers and 24-hour Holter monitoring, and compared to that of unipolar VVI pacemakers in 12 patients. Five maneuvers were performed for each of four different sensitivity levels, and an MPI score of from 0-4 points was given according to the lowest sensitivity level at which MPI was provoked. The MPI score in patients with AAI pacemakers was significantly lower than that in patients with VVI pacemakers, 1.60 +/- 1.26 vs 2.83 +/- 1.03 (p less than 0.05). On Holter monitoring, no MPI was detected in any of the patients with AAI pacemakers, whereas myopotential inhibition was detected in 5/12 patients (42%) with VVI pacemakers. Intracardiac electrograms were of lower amplitudes for AAI pacing than for VVI pacing, 3.13 +/- 1.83 mV vs 11.20 +/- 5.95 mV (p less than 0.01). Although the amplitude of atrial signals was lower than that of ventricular signals, the AAI pacemakers were less susceptible to MPI than were the VVI pacemakers. However, when MPI occurs in AAI pacing, it may be more difficult to correct without undersensing because of the lower amplitude of the intracardiac signals.
Authors:
H Ito; Y Iesaka; K Taniguchi; J Takeuchi
Related Documents :
23261148 - Two-dimensional atrial systolic strain imaging predicts atrial fibrillation at 4-year f...
7172518 - Electrophysiological characteristics of junctional pacemakers in congenital a-v block a...
11139958 - Multiple av nodal pathways with multiple peaks in the rr interval histogram of the holt...
1156478 - His bundle electrogram in patients with acute myocardial infarction complicated by atri...
23306088 - Objective and subjective sexual outcomes of adult patients following hypospadias repair...
8256578 - Nervous system involvement in systemic lupus erythematosus, sj?gren syndrome and sclero...
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Japanese heart journal     Volume:  28     ISSN:  0021-4868     ISO Abbreviation:  Jpn Heart J     Publication Date:  1987 Mar 
Date Detail:
Created Date:  1987-08-14     Completed Date:  1987-08-14     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0401175     Medline TA:  Jpn Heart J     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  157-64     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Electrocardiography
Equipment Failure
Evaluation Studies as Topic
Humans
Membrane Potentials
Middle Aged
Monitoring, Physiologic
Movement
Muscles / physiology*
Pacemaker, Artificial*

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


Previous Document:  A quantitative microscopic analysis of the myocardial interstitial tissue space and myocardial fiber...
Next Document:  Effects of treadmill exercise on platelet function, blood coagulability and fibrinolytic activity in...