TY - JOUR
T1 - Abstract 491: Detection of Subclinical Coronary Artery Disease by Calcium Score in Patients With Atrial Fibrillation: Potential Clinical Implications
AU - Chaikriangkrai, Kongkiat
AU - Valderrabano, Miguel
AU - Khaleel Bala, Sayf
AU - Alchalabi, Sama
AU - Graviss, Edward
AU - Nabi, Faisal
AU - Mahmarian, John
AU - Chang, Su Min
PY - 2015/8/11
Y1 - 2015/8/11
N2 - Background: Clinical implications of detecting subclinical coronary artery disease (CAD) in patients with atrial fibrillation (AF) are unclear.Methods: A total of 430 AF patients (age 63 ± 10 y, 65% male, 62% hypertensive, 16% diabetic, 42% dyslipidemic) without known CAD undergoing pre-procedural CT for catheter ablation were included. We evaluated the change in:1) numbers of patients with CACS-diagnosed CAD who could potentially be on statin.2) CHA2DS2-VASc score after incorporating CACS>100 (related to increased risk of stroke) into the original definition of vascular diseases who could potentially be on anticoagulants.Results: 1) Prevalence of subclinical CAD (CACS>0) was 74% (319/430) and 25% (106/430) had CACS>100. There were 62% (267/430) who were not on statin. Of these patients, 71% (190/267) had subclinical CAD while 21% (34/163) of statin users had CACS of 0.2) The median original CHA2DS2-VASc score was 2. After incorporating CACS>100 into the original score, 24% (18/75) with the original score of 0 had the score changed to 1 (7/35 in persistent AF [PST-AF] and 11/40 in paroxysmal AF [PRX-AF]) (figure A) and 17% (22/131) with the original score of 1 had the score changed to ≥ 2 (10/83 in PST-AF and 12/48 in PRX-AF) (figure B). PRX-AF had more frequent increase in CHA2DS2-VASc score than PST-AF (p=0.035)(figure C).Conclusion: In AF patients without known history of CAD, detecting subclinical CAD by CACS potentially has important therapeutic implications for prevention forprogression of CAD and stroke.Author Disclosures: K. Chaikriangkrai: None. M. Valderrabano: None. S. Khaleel Bala: None. S. Alchalabi: None. E. Graviss: None. F. Nabi: None. J. Mahmarian: None. S. Chang: None.
AB - Background: Clinical implications of detecting subclinical coronary artery disease (CAD) in patients with atrial fibrillation (AF) are unclear.Methods: A total of 430 AF patients (age 63 ± 10 y, 65% male, 62% hypertensive, 16% diabetic, 42% dyslipidemic) without known CAD undergoing pre-procedural CT for catheter ablation were included. We evaluated the change in:1) numbers of patients with CACS-diagnosed CAD who could potentially be on statin.2) CHA2DS2-VASc score after incorporating CACS>100 (related to increased risk of stroke) into the original definition of vascular diseases who could potentially be on anticoagulants.Results: 1) Prevalence of subclinical CAD (CACS>0) was 74% (319/430) and 25% (106/430) had CACS>100. There were 62% (267/430) who were not on statin. Of these patients, 71% (190/267) had subclinical CAD while 21% (34/163) of statin users had CACS of 0.2) The median original CHA2DS2-VASc score was 2. After incorporating CACS>100 into the original score, 24% (18/75) with the original score of 0 had the score changed to 1 (7/35 in persistent AF [PST-AF] and 11/40 in paroxysmal AF [PRX-AF]) (figure A) and 17% (22/131) with the original score of 1 had the score changed to ≥ 2 (10/83 in PST-AF and 12/48 in PRX-AF) (figure B). PRX-AF had more frequent increase in CHA2DS2-VASc score than PST-AF (p=0.035)(figure C).Conclusion: In AF patients without known history of CAD, detecting subclinical CAD by CACS potentially has important therapeutic implications for prevention forprogression of CAD and stroke.Author Disclosures: K. Chaikriangkrai: None. M. Valderrabano: None. S. Khaleel Bala: None. S. Alchalabi: None. E. Graviss: None. F. Nabi: None. J. Mahmarian: None. S. Chang: None.
M3 - Article
SN - 1079-5642
VL - 35
SP - A491
JO - Arteriosclerosis, Thrombosis, and Vascular Biology
JF - Arteriosclerosis, Thrombosis, and Vascular Biology
IS - Suppl 1
ER -