In a new Northwestern Medicine study, scientists have developed a more precise genetic risk score to determine whether a person is likely to develop arrhythmia, an irregular heartbeat that can lead to serious conditions such as atrial fibrillation (AFib) or sudden cardiac death.

Their approach not only improves the accuracy of heart disease risk prediction but also offers a comprehensive framework for genetic testing that, according to the scientists, could be applied to anything, including other complex, genetically influenced diseases like cancer, Parkinson’s Disease and autism.