Genetic Factors Underlying Sudden Infant Death Syndrome

Christine Keywan1 Robert’s Program for Sudden Unexpected Death in Pediatrics, Boston Children’s Hospital, Boston, MA, USA

Annapurna H Poduri1 Robert’s Program for Sudden Unexpected Death in Pediatrics, Boston Children’s Hospital, Boston, MA, USA;2 F.M. Kirby Neurobiology Center, Boston Children’s Hospital, Boston, MA, USA;3 Epilepsy Genetics Program, Department of Neurology, Boston Children’s Hospital and Harvard Medical School, Boston, MA, USA;4 Broad Institute of MIT and Harvard, Cambridge, MA, USA;5 Department of Neurology, Harvard Medical School, Boston, MA, USA

Richard D Goldstein1 Robert’s Program for Sudden Unexpected Death in Pediatrics, Boston Children’s Hospital, Boston, MA, USA;6 Department of Pediatrics, Harvard Medical School, Boston, MA, USA;7 Division of General Pediatrics, Department of Pediatrics, Boston Children’s Hospital, Boston, MA, USA

Ingrid A Holm1 Robert’s Program for Sudden Unexpected Death in Pediatrics, Boston Children’s Hospital, Boston, MA, USA;6 Department of Pediatrics, Harvard Medical School, Boston, MA, USA;8 Division of Genetics and Genomics, Department of Pediatrics, and Manton Center for Orphan Diseases Research, Boston Children’s Hospital, Boston, MA, USACorrespondence[email protected]

Abstract

Sudden Infant Death syndrome (SIDS) is a diagnosis of exclusion. Decades of research have made steady gains in understanding plausible mechanisms of terminal events. Current evidence suggests SIDS includes heterogeneous biological conditions, such as metabolic, cardiac, neurologic, respiratory, and infectious conditions. Here we review genetic studies that address each of these areas in SIDS cases and cohorts, providing a broad view of the genetic underpinnings of this devastating phenomenon. The current literature has established a role for monogenic genetic causes of SIDS mortality in a subset of cases. To expand upon our current knowledge of disease-causing genetic variants in SIDS cohorts and their mechanisms, future genetic studies may employ functional assessments of implicated variants, broader genetic tests, and the inclusion of parental genetic data and family history information.

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Genetic Factors Underlying Sudden Infant Death Syndrome

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Genetic Factors Underlying Sudden Infant Death Syndrome

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