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Related Experiment Videos

Sexual dysfunction in multiple sclerosis: a MRI, neurophysiological and urodynamic study.

Robert Zivadinov1, Marino Zorzon, Laura Locatelli

  • 1Department of Clinical Medicine and Neurology, University of Trieste, Cattinara Hospital, Strada di Fiume, 447-34149 Trieste, Italy.

Journal of the Neurological Sciences
|May 9, 2003
PubMed
Summary

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Sexual dysfunction in relapsing-remitting multiple sclerosis (MS) is linked to pons lesions. Magnetic resonance imaging (MRI) identified T(1) lesion load in the pons as a key predictor of sexual dysfunction in MS patients.

Area of Science:

  • Neuroscience
  • Neurology
  • Radiology

Background:

  • Sexual dysfunction is a common and distressing symptom in multiple sclerosis (MS).
  • Previous research has linked sexual dysfunction to various clinical factors, but the specific neuroanatomical correlates remain incompletely understood.

Purpose of the Study:

  • To investigate the relationship between sexual dysfunction and neuroimaging findings, including lesion load and brain atrophy, in patients with relapsing-remitting MS.
  • To identify specific MRI markers that predict sexual dysfunction in this population.

Main Methods:

  • 31 patients with relapsing-remitting MS underwent urodynamic studies, evoked potentials, and cranial/spinal cord MRI.
  • T(1) and T(2) lesion load (LL) and brain parenchymal fraction (BPF) were calculated for various brain regions and the cervical spinal cord.

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  • Spearman's rank correlation and multiple regression analyses were used to assess relationships between sexual dysfunction and clinical/imaging variables.

    • Main Results:

    • Sexual dysfunction correlated with age, cognitive performance, independence level, disability, anxiety, depression, disease duration, and pontine atrophy.
    • No correlation was found between sexual dysfunction and other MRI measures, urodynamic patterns, or cortical evoked potentials.
    • Multiple regression analysis revealed that T(1) lesion load in the pons was the sole significant predictor of sexual dysfunction.

    Conclusions:

    • This study confirms known clinical associations with sexual dysfunction in MS.
    • It demonstrates a significant association between sexual dysfunction and destructive T(1) lesions in the pons, as visualized by MRI, in patients with relapsing-remitting MS.