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Clinically isolated syndromes.

David H Miller1, Declan T Chard, Olga Ciccarelli

  • 1Nuclear Magnetic Resonance Research Unit, UCL Institute of Neurology, London, UK. david.h.miller@ucl.ac.uk

The Lancet. Neurology
|January 24, 2012
PubMed
Summary
This summary is machine-generated.

Clinically isolated syndrome (CIS) is the first sign of multiple sclerosis (MS) in young adults. Early MRI and treatments can help predict and manage MS progression, though long-term outcomes remain variable.

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Area of Science:

  • Neurology
  • Neuroimmunology
  • Clinical Medicine

Background:

  • Clinically isolated syndrome (CIS) represents the initial clinical presentation suggestive of multiple sclerosis (MS).
  • CIS typically affects young adults, manifesting with neurological deficits in the optic nerves, brainstem, or spinal cord.
  • While recovery from the initial episode is common, CIS frequently heralds the onset of MS.

Purpose of the Study:

  • To review the diagnostic criteria and risk factors associated with CIS.
  • To discuss the prognostic variability and long-term outcomes following CIS.
  • To evaluate the role and limitations of disease-modifying treatments in the CIS stage.

Main Methods:

  • Review of diagnostic investigations, emphasizing the role of Magnetic Resonance Imaging (MRI).
  • Analysis of established and potential risk factors for MS development post-CIS.
  • Examination of clinical course variability and the impact of early therapeutic interventions.

Main Results:

  • Key predictors for MS include MRI-detected lesions and cerebrospinal fluid (CSF) oligoclonal bands.
  • MRI findings are integral to current diagnostic criteria, enabling earlier MS diagnosis.
  • Long-term outcomes post-CIS are variable, with a significant proportion developing secondary progressive MS.

Conclusions:

  • Early diagnosis and intervention in CIS are crucial for managing potential MS.
  • Disease-modifying therapies may delay MS conversion but require careful consideration due to prognostic uncertainties.
  • Future research should focus on safe, effective immunomodulation, neuroprotection, and repair strategies for MS.