Chapter 144. Idiopathic Hypersomnia

  1. Robert P. Lisak MD, FAAN, FRCP Parker Webber Chair Professor Chair Neurologist-in-Chief Chief3,4,
  2. Daniel D. Truong MD, FAAN Head5,
  3. William M. Carroll MBBS, MD, FRACP, FRCP(E) Head6 and
  4. Roongroj Bhidayasiri MD, FRCP Director7,8
  1. Marcel Hungs MD, PhD Assistant Professor Director1 and
  2. Jed Black MD Assistant Professor2

Published Online: 18 MAY 2010

DOI: 10.1002/9781444317008.ch144

International Neurology: A Clinical Approach

International Neurology: A Clinical Approach

How to Cite

Hungs, M. and Black, J. (2009) Idiopathic Hypersomnia, in International Neurology: A Clinical Approach (eds R. P. Lisak, D. D. Truong, W. M. Carroll and R. Bhidayasiri), Wiley-Blackwell, Oxford, UK. doi: 10.1002/9781444317008.ch144

Editor Information

  1. 3

    Wayne State University School of Medicine, Detroit, MI, USA

  2. 4

    Detroit Medical Center, Harper University Hospital, Detroit, MI, USA

  3. 5

    The Parkinson and Movement Disorder Institute, Memorial Neuroscience Institute, Orange Coast Memorial Medical Center, Fountain Valley, CA, USA

  4. 6

    Sir Charles Gairdner Hospital, Nedlands, Perth, Australia

  5. 7

    Chulalongkorn Comprehensive Movement Disorders Center, Chulalongkorn University Hospital, Bangkok, Thailand

  6. 8

    University of California at Los Angeles, School of Medicine, Los Angeles, CA, USA

Author Information

  1. 1

    University of California, Irvine, USA

  2. 2

    Stanford University, Stanford, USA

Publication History

  1. Published Online: 18 MAY 2010
  2. Published Print: 11 SEP 2009

ISBN Information

Print ISBN: 9781405157384

Online ISBN: 9781444317008



  • idiopathic hypersomnia;
  • idiopathic hypersomnia (IH), and obstructive sleep apnea (OSA) and narcolepsy;
  • excessive daytime sleepiness (EDS);
  • IH lacking objective diagnostic approaches - overnight sleep study or Multiple Sleep Latency Test;
  • excessive daytime sleepiness;
  • narcolepsy and sleep apnea - marked by well-defined clinical, polysomnographic, or immunogenetic features;
  • IH, life-long disorder without remission or significant fluctuations - in clinical presentation;
  • IH characterized by EDS - unexplained by other conditions


This chapter contains sections titled:

  • Introduction

  • Epidemiology

  • Pathophysiology

  • Clinical assessment

  • Diagnostic assessment

  • Treatment/management

  • Further reading