Genetic Links to Sudden Cardiac Arrest in Heart Disease Patients
Author Information
Author(s): Aouizerat Bradley E, Vittinghoff Eric, Musone Stacy L, Pawlikowska Ludmila, Kwok Pui-Yan, Olgin Jeffrey E, Tseng Zian H
Primary Institution: University of California, San Francisco
Hypothesis
We sought to identify novel gene associations for sudden cardiac arrest in patients with coronary artery disease by performing a genome-wide association study.
Conclusion
We demonstrate 11 gene associations for sudden cardiac arrest due to ventricular tachycardia/ventricular fibrillation in patients with coronary artery disease.
Supporting Evidence
- Fourteen SNPs including 7 SNPs among 7 genes were associated with sudden cardiac arrest.
- Genetic variation in ESR1 has previously been established as a risk factor for cardiovascular disease.
- The study validated associations for genetic variation in AGTR1 and NOS1AP.
Takeaway
This study found new genes that might increase the risk of sudden heart problems in people with heart disease.
Methodology
A case-control study comparing 89 patients with coronary artery disease and sudden cardiac arrest to 520 healthy controls using genome-wide association study methods.
Potential Biases
Potential confounding associations with coronary artery disease or other intermediate phenotypes cannot be ruled out.
Limitations
The study had a modest sample size and only included Caucasian participants, which may limit the generalizability of the findings.
Participant Demographics
89 Caucasian non-Hispanic patients with a history of myocardial infarction and 520 healthy Caucasian controls.
Statistical Information
P-Value
p = 2.62 × 10-8
Confidence Interval
95% CI: 1.277, 1.596
Statistical Significance
p < 1.30 × 10-7
Digital Object Identifier (DOI)
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