Drowning accounts for more accidental deaths in children andadolescents than all other causes except motor vehicle accidents.1,2,3Many of these fatalities are attributed to lack of supervision,trauma, alcohol or drug use, or seizures. However, an appreciablenumber of drownings have no satisfactory explanation. In thesesituations, cardiac arrhythmias, particularly those associatedwith the long-QT syndrome, may be an important consideration.The long-QT syndrome comprises a group of genetically distinctarrhythmogenic cardiovascular disorders, each resulting froma mutation in one of five genes encoding cardiac ion channelsor auxiliary ion-channel subunits: KVLQT1 (at the LQT1 locus),HERG (at LQT2), . . . [Full Text of this Article]
Case Report
Methods
Results
Novel 9-bp Deletion in KVLQT1
Screening of Family Members
Effect of Genetic Testing on Clinical Management
Discussion
Source Information
From the Department of Pediatric and Adolescent Medicine, Section of Pediatric Cardiology, Mayo Eugenio Litta Children's Hospital (M.J.A., D.J.T., C.J.P.), and the Department of Laboratory Medicine and Pathology (W.D.E.), Mayo Foundation, Rochester, Minn.
Address reprint requests to Dr. Ackerman at the Department of Pediatric and Adolescent Medicine, Mayo Eugenio Litta Children's Hospital, Mayo Foundation, Rochester, MN 55905, or at ackerman.michael@mayo.edu.
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