Korean Circulation Journal

The Korean Society of Cardiology (대한심장학회)
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Comparison of Prolonged Atrial Electromechanical Delays with Different Definitions in the Discrimination of Patients with Non-Valvular Paroxysmal Atrial Fibrillation

  • Lee, Dong Hyun (Department of Cardiology, Dong-A University Medical Center) ;
  • Choi, Sun Young (Department of Cardiology, Dong-A University Medical Center) ;
  • Park, Jong Sung (Department of Cardiology, Dong-A University Medical Center) ;
  • Seo, Jeong-Min (Department of Cardiology, Dong-A University Medical Center) ;
  • Choi, Jae-Hyuk (Department of Cardiology, Dong-A University Medical Center) ;
  • Cho, Young-Rak (Department of Cardiology, Dong-A University Medical Center) ;
  • Park, Kyungil (Department of Cardiology, Dong-A University Medical Center) ;
  • Kim, Moo Hyun (Department of Cardiology, Dong-A University Medical Center) ;
  • Kim, Young-Dae (Department of Cardiology, Dong-A University Medical Center)
  • Received : 2015.02.07
  • Accepted : 2015.06.18
  • Published : 2015.11.30
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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 and Methods: 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.

Keywords

Acknowledgement

Supported by : Dong-A University

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