Comparison of Prolonged Atrial Electromechanical Delays with Different Definitions in the Discrimination of Patients with Non-Valvular Paroxysmal Atrial Fibrillation
Korean Circulation Journal
;
: 479-485, 2015.
Article
in English
| WPRIM
| ID: wpr-14862
ABSTRACT
BACKGROUND AND OBJECTIVES:
Previous studies have evaluated atrial electromechanical delays (AEMDs) with a number of different definitions to discriminate patients with paroxysmal atrial fibrillation (PAF) from controls without PAF. However, their discriminative values for PAF have not previously been directly compared. SUBJECTS ANDMETHODS:
A total of 65 PAF patients and 130 control subjects matched for age, sex, history of hypertension, and diabetes mellitus were selected. The AEMDi and AEMDp were defined as the time intervals from the initiation of the P wave on the surface electrocardiogram to the initiation and peak of the late diastolic transmitral inflow on pulsed wave Doppler images, respectively. The AEMDim and AEMDpm were defined as the time intervals from the initiation of the P wave on the surface electrocardiogram to the initiation and peak of the late diastolic lateral mitral annular motion on tissue Doppler images, respectively.RESULTS:
There were no significant differences in the clinical characteristics between the two groups. All 4 AEMDs were consistently longer in the PAF group, and proven effective to differentiate the PAF patients from the controls. The AEMDi measurement had a larger area under the curve (AUC) than the other AEMDs, left atrial volume index, and P wave amplitude. However, the AEMDp, AEMDim, and AEMDpm measurements had AUCs similar to those of the left atrial volume index and P wave amplitude.CONCLUSION:
The findings suggest that the AEMDi is better than the other AEMDs for the discrimination of PAF patients from the controls.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Atrial Fibrillation
/
Echocardiography
/
Area Under Curve
/
Diabetes Mellitus
/
Discrimination, Psychological
/
Electrocardiography
/
Hypertension
Type of study:
Prognostic study
Limits:
Humans
Language:
English
Journal:
Korean Circulation Journal
Year:
2015
Type:
Article
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