Document Detail

The time interval from the initiation of the P-wave to the start of left atrial appendage ejection flow: does it reflect interatrial conduction time?
MedLine Citation:
PMID:  17767530     Owner:  NLM     Status:  MEDLINE    
METHODS AND RESULTS: We compared two methods of calculating interatrial conduction time in a group of 33 patients. The origin of the P-wave on the surface electrocardiogram (ECG) was taken as the onset of atrial activation. The time interval from this point to the commencement of the left atrial appendage ejection flow (P-LAA) was measured by TEE. Meanwhile, simultaneous recordings of the left atrial appendage were obtained with a catheter positioned in the LAA, and an invasive interatrial conduction time was measured from the origin of the surface's earliest P-wave (I-IACT). The mean I-IACT (46.27 +/- 13.25 ms) correlated strongly with the mean P-LAA (49.91 +/- 12.72 ms; r = 0.839, P < 0.0001).
CONCLUSION: The interatrial conduction time can be estimated with a relatively noninvasive method using P-LAA measurements. This technique can be applied widely in predicting AF recurrence, and appropriate therapy may be applied.
Mustafa Karaca; Ozan Kinay; Cem Nazli; Serdar Biceroglu; Fahriye Vatansever; A Oktay Ergene
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  24     ISSN:  0742-2822     ISO Abbreviation:  Echocardiography     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-09-04     Completed Date:  2008-01-24     Revised Date:  2013-05-20    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  810-5     Citation Subset:  IM    
Cardiology Department, Atakalp Heart Center, No: 16 Kahramanlar, Izmir, Turkey.
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MeSH Terms
Atrial Appendage / physiopathology*,  ultrasonography
Atrial Fibrillation / diagnosis*,  pathology,  physiopathology*,  ultrasonography
Atrial Function, Left / physiology
Blood Flow Velocity / physiology
Cardiac Catheterization
Echocardiography, Transesophageal
Heart Conduction System / physiopathology*
Middle Aged
Predictive Value of Tests
Time Factors

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

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