Updates are available Correction dated 2019-08-26

Article History

Received: 7 March 2019

Accepted: 27 May 2019

First Online: 3 June 2019

Change Date: 26 August 2019

Change Type: Correction

Change Details: The author regret that, in the section ���Dietary treatments��� the sentence ���Ketogenic diet is the gold standard therapy for Glut 1 deficiency and pyruvate kinase deficiency but it can be also applied in severe drug-resistant epileptic encephalopathies [4].��� is not correct.

Compliance with ethical standards

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: The author has no funding or conflict of interest to declare. This article does not contain any studies with human participants or animals performed by the author. The MRIs in Fig.  were realized during an ordinary diagnostic workup of the involved patients and a parental informed consent for their publication was obtained for each one of them.