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Systematic Review of Bilateral Independent Periodic Discharges Written for Topical Journal Subject on Periodic Discharges

Freund, Brin*; Kaplan, Peter W.


In the article that appeared on page 208 of the May 2018 issue of the Journal of Clinical Neurophysiology , the article’s title was listed incorrectly.

The correct title of this invited review by Brin Freund and Peter W. Kaplan is “Systematic Review of Bilateral Independent Periodic Discharges.”

Journal of Clinical Neurophysiology. 36(3):247, May 2019.

Journal of Clinical Neurophysiology: May 2018 - Volume 35 - Issue 3 - p 208–217
doi: 10.1097/WNP.0000000000000433
Invited Review

Summary: Periodic discharges (PDs) are EEG patterns that may have important clinical and prognostic implications. There are different subtypes of PDs that are delineated by their location, and each type may have different meaning regarding prognosis and clinical associations. Bilateral independent PDs are a subtype that have not been analyzed recently and remain poorly understood. In this article, we systematically review the literature to better describe bilateral independent PDs regarding underlying neuropathology, neuroimaging, and neuroexamination correlates, seizure incidence, EEG characteristics, their comparison with other PD subtypes, and prognostic meaning.

*Department of Neurology, Johns Hopkins Hospital, Baltimore, Maryland, U.S.A.; and

Department of Neurology, Johns Hopkins Bayview Medical Center, Baltimore, Maryland, U.S.A.

Address correspondence and reprint requests to Brin Freund, MD, Department of Neurology, Johns Hopkins Hospital, 600 N, Wolfe St, Zayed Tower, Room 6005, Baltimore, MD 21287, U.S.A.; e-mail:

The authors have no funding or conflicts of interest to disclose.

© 2018 by the American Clinical Neurophysiology Society