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Published on: July 20, 2022
Association of Diagonal Earlobe Crease with Risk of Atrial Fibrillation in Stable Patients with Coronary Artery
Moo-Nyun Jin1, Changho Song2, Young Ju Kim3
1Division of Cardiology, Ewha Womans University Medical Center, Ewha Womans University College of Medicine, Seoul 07985, Republic of Korea.
Insights
A diagonal earlobe crease (DELC) may indicate a higher risk of developing atrial fibrillation (AF) in patients with coronary artery disease (CAD). This finding could help identify individuals with CAD who are more prone to AF.
Area of Science:
- Cardiology
- Clinical Research
- Predictive Markers
Background:
- Diagonal earlobe crease (DELC) is a potential indicator for coronary artery disease (CAD).
- Limited research exists on the link between DELC and atrial fibrillation (AF).
Purpose of the Study:
- To investigate the association between DELC and the incidence of AF in patients diagnosed with CAD.
Main Methods:
- 669 CAD patients under 65 without AF were assessed for DELC.
- Follow-up was conducted for a median of 44.6 months to record AF incidence.
- Kaplan-Meier analysis and adjusted hazard ratios were used to evaluate risk.
Main Results:
- DELC was present in 10.8% of the study cohort.
- AF incidence was 16.4% in the DELC group versus 8.4% in the non-DELC group.
- DELC was significantly associated with a higher risk of AF development (aHR=1.88).
Conclusions:
- DELC is linked to an increased risk of AF in patients with CAD.
- This visible marker may assist in early AF detection among CAD patients.
Abstract:
Background: Diagonal earlobe crease (DELC) is a proposed visible predictor of coronary artery disease (CAD). However, studies on the association between atrial fibrillation (AF) and DELC are lacking. This study evaluated the association between DELC and the incidence of AF in patients with CAD. Methods: A total of 669 participants aged <65 years (mean, 53.8 ± 7.5 years) diagnosed with CAD and without AF were evaluated for the presence of DELC. The study outcome was the incidence of AF based on the presence of DELC. The study period was planned for 60 months with a minimum follow-up period of 12 months. Results: Herein, the incidence of DELC was 10.8%. During the follow-up period (44.6 ± 14.9 months), the incidences of AF development were 16.4% and 8.4% in DELC and non-DELC groups, respectively. Kaplan-Meier analysis revealed that the occurrence of AF was significantly higher in the DELC group than in the non-DELC group (log-rank test, p = 0.02). Compared with patients without DELC, patients with DELC had a high risk of AF development (adjusted hazard ratio = 1.88, 95% confidence interval = 1.01-3.53). Conclusions: DELC is associated with an increased risk of AF in patients with CAD. These findings may aid in the detection of AF in patients with CAD.
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