Chapter 4. Frontal Intermittent Rhythmic Delta Activity[1–5]

  1. Peter W. Kaplan MB, FRCP1 and
  2. Thien Nguyen MD, PhD2

Published Online: 4 SEP 2010

DOI: 10.1002/9781444322972.ch4

Clinical Electrophysiology

Clinical Electrophysiology

How to Cite

Kaplan, P. W. and Nguyen, T. (2010) Frontal Intermittent Rhythmic Delta Activity[1–5], in Clinical Electrophysiology, Wiley-Blackwell, Oxford, UK. doi: 10.1002/9781444322972.ch4

Author Information

  1. 1

    Department of Neurology, The Johns Hopkins University School of Medicine & Johns Hopkins Bayview Medical Center, Baltimore, MA, USA

  2. 2

    Department of Neurology, The Johns Hopkins University School of Medicine & The Johns Hopkins Hospital, Baltimore, MA, USA

Publication History

  1. Published Online: 4 SEP 2010
  2. Published Print: 8 OCT 2010

ISBN Information

Print ISBN: 9781405185295

Online ISBN: 9781444322972



  • Frontal intermittent rhythmic delta activity;
  • Clinical Correlation - alpha activity and wakefulness diminishes;
  • Etiology - in children, it was previously thought to indicate increased pressure around the third and fourth ventricles;
  • Clinical Evaluation - examine cognitive function, test for neck stiffness;
  • Differential Diagnosis - use eye leads above and below the eyes;
  • Prognosis - good prognosis with urinary tract infections and reversiblytoxic drugs;
  • Treatment - dementia and intercurrent infection


This chapter contains sections titled:

  • Clinical Correlation

  • Etiology

  • Clinical Evaluation

  • Ancillary Testing

  • Differential Diagnosis

  • Prognosis

  • Treatment

  • References