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Cognitive function in patients with Cushing syndrome: a longitudinal perspective.

L D Dorn1, P Cerrone

  • 1University of Pittsburgh, USA.

Clinical Nursing Research
|March 8, 2002
PubMed
Summary

Cognitive function in Cushing syndrome (CS) patients showed individual variability posttreatment. Recovery of the hypothalamic pituitary adrenal (HPA) axis and reduced depression correlated with improved cognitive outcomes.

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Area of Science:

  • Endocrinology
  • Neuropsychology
  • Clinical Medicine

Background:

  • Cushing syndrome (CS) is a rare endocrine disorder with significant systemic effects.
  • Cognitive dysfunction is a recognized complication of CS, impacting daily life.
  • Long-term cognitive outcomes and influencing factors post-treatment require further elucidation.

Purpose of the Study:

  • To assess cognitive function 12 months after Cushing syndrome treatment.
  • To investigate the correlation between cognitive function and CS duration or HPA axis recovery.
  • To explore the relationship between depression and cognitive improvements in CS patients.

Main Methods:

  • A cohort of 33 adult patients with CS and a matched control group were studied.
  • Cognitive function (IQ), depression, and endocrine parameters were assessed during active CS and 12 months posttreatment.

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  • Statistical analyses explored relationships between cognitive scores, HPA axis recovery, CS duration, and depression levels.

    • Main Results:

    • No significant group differences in cognitive function were observed over time.
    • CS patients exhibited a trend towards lower baseline IQ scores compared to controls.
    • Improved cognitive function correlated positively with HPA axis recovery and decreased depression, and negatively with CS duration.

    Conclusions:

    • Cognitive function in Cushing syndrome patients demonstrates considerable individual variability posttreatment.
    • HPA axis recovery and reduction in depressive symptoms are key factors in cognitive improvement.
    • Further research is warranted to fully understand and manage cognitive sequelae of CS.