Phenotypic characterization of COL4A1-related West syndrome

Epilepsy Res. 2020 Aug:164:106349. doi: 10.1016/j.eplepsyres.2020.106349. Epub 2020 May 5.

Abstract

Collagen type IV, alpha-1 (COL4A1) variants can cause cerebrovascular diseases, such as porencephaly and cerebral hemorrhage, in addition to other autosomal dominant hereditary diseases. Patients with COL4A1 variants can present with epilepsy, most commonly focal epilepsy. In this paper, we present five patients, three of whom were examined by the authors, and two who were previously reported. Clinically, these five patients were characterized by the presence of West syndrome (WS), periventricular leukomalacia (PVL), and microcephaly, but none had a history of premature birth or hypoxic ischemic encephalopathy (HIE). Genetic testing results indicated that all patients had heterozygous variants of COL4A1. Genetic testing for the COL4A1 variants should be considered when a patient without a history of prematurity or HIE develops WS with PVL and microcephaly.

Keywords: COL4A1 variants; Microcephaly; Periventricular leukomalacia; West syndrome.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cerebral Hemorrhage / diagnosis
  • Cerebral Hemorrhage / genetics*
  • Cerebral Hemorrhage / metabolism
  • Child
  • Child, Preschool
  • Collagen Type IV / genetics*
  • Female
  • Heterozygote
  • Humans
  • Infant
  • Male
  • Mutation / genetics
  • Spasms, Infantile / complications
  • Spasms, Infantile / diagnosis*
  • Spasms, Infantile / genetics*

Substances

  • COL4A1 protein, human
  • Collagen Type IV