Postmortem genetic screening for the identification, verification, and reporting of genetic variants contributing to the sudden death of the young.

TitlePostmortem genetic screening for the identification, verification, and reporting of genetic variants contributing to the sudden death of the young.
Publication TypeJournal Article
Year of Publication2016
AuthorsD Methner, NR, Scherer, SE, Welch, K, Walkiewicz, M, Eng, CM, Belmont, JW, Powell, MC, Korchina, V, Doddapaneni, HV, Muzny, DM, Gibbs, RA, Wolf, DA, Sanchez, LA, Kahn, R
JournalGenome Res
Volume26
Issue9
Pagination1170-7
Date Published2016 Sep
ISSN1549-5469
Abstract

Each year in the United States, thousands of cases of sudden and unexpected deaths of infants, children, and young adults are assigned an undetermined cause of death after postmortem investigation and autopsy. Heritable genetic variants have been suggested as the cause of up to a third of sudden death (SD) cases. Elucidation of the genetic variants involved in SD cases is important to not only help establish cause and manner of death of these individuals, but to also aid in determining whether familial genetic testing should be considered. Previously, these types of postmortem screenings have not been a feasible option for most county medical examiners' and coroners' offices. We sequenced full exons of 64 genes associated with SD in the largest known cohort (351) of infant and young SD decedents using massively parallel sequencing at 1 yr of age), were found to have a reportable genetic variant contributing to SD. These percentages represent an estimate lower than those previously reported. Overall yields and results likely vary between studies due to differences in evaluation techniques and reporting. Additionally, we recommend ongoing assessment of data, including nonreported novel variants, as technology and literature continually advance. This study demonstrates a strategy to implement molecular autopsies in medicolegal investigations of young SD decedents.

DOI10.1101/gr.195800.115
Alternate JournalGenome Res.
PubMed ID27435932
PubMed Central IDPMC5052040