Prediction of Left Ventricular Peak Ejection Velocity by Preceding and Prepreceding RR Intervals in Atrial fibrillation:A New Method to Adjust the Influence between Two Intervals
Journal of Korean Medical Science
; : 743-748, 2002.
Article
in En
| WPRIM
| ID: wpr-112884
Responsible library:
WPRO
ABSTRACT
In atrial fibrillation, cardiac performance is dependent on both preceding RR (RR-1) and prepreceding RR (RR-2) intervals. However, relative contributions were not well defined. Left ventricular outflow peak ejection velocity (Vpe) was measured by echocardiography from 21 patients. The relation between RR-1 and Vpe could be divided into two zones; steep slope in short RR-1 intervals ( 0.5 sec). RR-2 had a weak negative association with Vpe. The mean squared correlation coefficient (r2 ) between RR-2 and Vpe was 0.15 +/-0.13 and improved to 0.29 +/-0.21 (p<0.001), when coordinates with RR-1 Key words
Full text:
1
Index:
WPRIM
Main subject:
Atrial Fibrillation
/
Time Factors
/
Electric Countershock
/
Atrial Function, Left
/
Echocardiography, Doppler, Pulsed
/
Electrocardiography
/
Heart
/
Heart Ventricles
/
Myocardium
Type of study:
Prognostic_studies
Limits:
Aged
/
Aged80
/
Female
/
Humans
/
Male
Language:
En
Journal:
Journal of Korean Medical Science
Year:
2002
Type:
Article
Full text:
1
Index:
WPRIM
Main subject:
Atrial Fibrillation
/
Time Factors
/
Electric Countershock
/
Atrial Function, Left
/
Echocardiography, Doppler, Pulsed
/
Electrocardiography
/
Heart
/
Heart Ventricles
/
Myocardium
Type of study:
Prognostic_studies
Limits:
Aged
/
Aged80
/
Female
/
Humans
/
Male
Language:
En
Journal:
Journal of Korean Medical Science
Year:
2002
Type:
Article