Document Detail

Measurement of left atrial systolic time intervals in hypertensive patients using Doppler echocardiography: relation to fourth heart sound and left ventricular wall thickness.
MedLine Citation:
PMID:  3351146     Owner:  NLM     Status:  MEDLINE    
The concept of left atrial systolic time intervals and Doppler echocardiography were used in a quantitative assessment of left atrial function in relation to the presence or absence of a fourth heart sound and to left ventricular hypertrophy in 47 patients with hypertension. Left atrial systolic time interval indexes included atrial pre-ejection period (the time between the onset of an electrocardiographic P wave and the onset of left ventricular inflow during atrial systole [A wave]), corrected atrial pre-ejection period (the atrial pre-ejection period divided by the duration of the P wave), and atrial ejection time (the time between the onset and cessation of the A wave). Twenty-one patients with a fourth heart sound on the phonocardiogram had a shorter atrial pre-ejection period (81 +/- 10 versus 89 +/- 14 ms p less than 0.05) and a corrected atrial pre-ejection period (66 +/- 17 versus 83 +/- 18 ms, p less than 0.01), as well as a longer atrial ejection time (147 +/- 15 versus 126 +/- 13 ms, p less than 0.001) than did 26 patients without a fourth heart sound. The ratio of atrial pre-ejection period to atrial ejection time and that of corrected atrial pre-ejection period to atrial ejection time was smaller in patients with than in patients without a fourth heart sound (0.56 +/- 0.08 versus 0.71 +/- 0.11, p less than 0.001; 0.46 +/- 0.16 ms-1 versus 0.67 +/- 0.17 ms-1, p less than 0.001, respectively).(ABSTRACT TRUNCATED AT 250 WORDS)
H Abe; M Yokouchi; F Deguchi; F Saitoh; H Yoshimi; Y Arakaki; T Natsume; Y Kawano; K Yoshida; M Kuramochi
Related Documents :
3733266 - The use of atrial pacing to induce atrial fibrillation and flutter.
19934146 - Atrial tachycardia with 1:1 atrioventricular conduction precipitated by propafenone.
19379916 - Epicardial electrical isolation of the right atrial appendage on the beating heart with...
6218936 - The relationship of human atrial cellular electrophysiology to clinical function and ul...
7646196 - Early experience with the toronto stentless porcine valve.
10086556 - Low cardiac output complicating pericardiectomy for pericardial tamponade.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American College of Cardiology     Volume:  11     ISSN:  0735-1097     ISO Abbreviation:  J. Am. Coll. Cardiol.     Publication Date:  1988 Apr 
Date Detail:
Created Date:  1988-04-25     Completed Date:  1988-04-25     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8301365     Medline TA:  J Am Coll Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  800-5     Citation Subset:  AIM; IM    
Division of Hypertension, National Cardiovascular Center, Osaka, Japan.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Blood Flow Velocity
Heart Auscultation*
Heart Sounds*
Heart Ventricles / pathology,  physiopathology
Hypertension / pathology,  physiopathology*
Middle Aged
Mitral Valve / physiopathology
Myocardial Contraction*
Myocardium / pathology*

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

Previous Document:  Prevalent myocarditis at necropsy in the acquired immunodeficiency syndrome.
Next Document:  Atrial signal variations and pacemaker malsensing during exercise: a study in the time and frequency...