
Acquired Long QT Syndrome 5: Genetics and ECG Imaging
Common genetic variation shapes LQTS susceptibility, while electrocardiographic imaging maps repolarization; genetic testing identifies relatives at risk.

MD · MBA
Physician specializing in genetic analysis and personalized preventive medicine, and author of Outsmart Your Genes.
Brandon Colby is a physician-expert in the fields of genetic analysis and Personalized Preventive Medicine. He holds an MD from the Mount Sinai School of Medicine, an MBA from Stanford University's Graduate School of Business, and a degree in Genetics from the University of Michigan.
Dr. Colby is the author of the book Outsmart Your Genes and has developed numerous technologies that improve the analysis, interpretation, and actionability of genome sequencing data. He is an Affiliate Specialist of the American College of Medical Genetics and Genomics (ACMG), an Associate of the American College of Preventive Medicine (ACPM), and a member of the National Society of Genetic Counselors (NSGC).
Articles by Brandon Colby, MD are reviewed for accuracy by Sequencing's medical and scientific team. This page is for informational purposes and does not constitute medical advice.

Common genetic variation shapes LQTS susceptibility, while electrocardiographic imaging maps repolarization; genetic testing identifies relatives at risk.

Medications, electrolyte imbalance or another illness can lengthen the QT interval, and common variation explains an estimated 15% of LQTS susceptibility.

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