Galloway-Mowat syndrome: An early-onset progressive encephalopathy with intractable epilepsy associated to renal impairment. Two novel cases and review of literature

Marianna Pezzella, Nune S. Yeghiazaryan, Pierangelo Veggiotti, Alberto Bettinelli, Giovanna Giudizioso, Federico Zara, Pasquale Striano, Carlo Minetti

Research output: Contribution to journalArticlepeer-review

Abstract

Galloway-Mowat Syndrome (GMS) is an autosomal recessively inherited condition which manifests with severe encephalopathy, featuring microcephaly, developmental delay, and early-onset intractable epilepsy. Patients typically show also renal involvement from the onset. We report two siblings with GMS presenting with early-onset, intractable epilepsy and neurological deterioration, later followed by renal impairment. In both patients intractable epilepsy started during the first months of life and included a combination of spasms, focal and myoclonic/atonic seizures, along with psychomotor retardation and dysmorphic features. One of the patient died from fulminating renal failure at age 6 years. The other patient developed only isolated proteinuria from the age 3 years. Our cases differ from 'classic' GMS, as manifested the clinical and laboratory features of renal involvement only some years later the onset of epilepsy and neurological symptoms. Therefore, the diagnosis of GMS should be considered in infants with intractable epilepsy, encephalopathy, and multiple neurological deficits, also in absence of renal manifestations. The literature data about the electroclinical features of epilepsy in GMS are also reviewed.

Original languageEnglish
Pages (from-to)132-135
Number of pages4
JournalSeizure
Volume19
Issue number2
DOIs
Publication statusPublished - Mar 2010

Keywords

  • Developmental delay
  • Epilepsy
  • Galloway-Mowat syndrome
  • Microcephaly
  • Nephrotic syndrome

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology

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