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Related Experiment Videos

Prognostic factors in oligodendrogliomas

L Westergaard1, F Gjerris, L Klinken

  • 1University Clinic of Neurosurgery, Rigshospitalet, Copenhagen, Denmark.

Acta Neurochirurgica
|January 1, 1997
PubMed
Summary

Younger patients and those without neurological deficits had significantly better survival rates for cerebral oligodendrogliomas. Radiotherapy showed no impact on outcomes in this patient cohort.

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Area of Science:

  • Neuro-oncology
  • Neurosurgery
  • Clinical Outcomes Research

Background:

  • Oligodendrogliomas are a type of primary brain tumor.
  • Understanding prognostic factors is crucial for managing these rare tumors.

Purpose of the Study:

  • To analyze outcome predictors in patients with pure cerebral oligodendrogliomas.
  • To evaluate the impact of prognostic factors and radiotherapy on survival.

Main Methods:

  • Retrospective outcome analysis of 96 patients with pure cerebral oligodendrogliomas.
  • Data collected over a 30-year period (1962-1991).
  • Prognostic factors including age, neurological deficit, and tumor grade were assessed.

Main Results:

  • Youth (under 20 years) was associated with a median survival of 17.5 years.
  • Absence of neurological deficit correlated with a 5-year survival of 43%, versus 5% with deficits.
  • Grade II oligodendroglioma had 46% 5-year survival; Grade III had 10% 5-year survival.
  • Radiotherapy demonstrated no significant effect on survival across all subgroups.

Conclusions:

  • Age at diagnosis and neurological status are key prognostic indicators for cerebral oligodendrogliomas.
  • Tumor grade significantly influences patient survival.
  • Current data suggests radiotherapy does not improve survival in this patient population.

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