Prognostic Impact of Chromosomal Aberrations in Ewing Tumours
Author Information
Author(s): Hattinger C M, Pötschger U, Tarkkanen M, Squire J, Zielenska M, Kiuru-Kuhlefelt S, Kager L, Thorner P, Knuutila S, Niggli F K, Ambros P F, Gadner H, Betts D R
Primary Institution: CCRI, St. Anna Children's Hospital, Vienna, Austria
Hypothesis
What is the prognostic significance of chromosomal aberrations in Ewing tumours?
Conclusion
The study found that gain of chromosome 1q and loss of chromosome 16q are significant predictors of adverse outcomes in Ewing tumour patients.
Supporting Evidence
- Gain of chromosome 1q was associated with adverse overall survival and event-free survival.
- Loss of 16q was a significant predictive factor for adverse overall survival.
- Gain of chromosome 12 was associated with adverse event-free survival in patients with localized disease.
Takeaway
Doctors can look at certain chromosome changes in Ewing tumours to see if a patient might have a worse outcome.
Methodology
Tumour samples from 134 Ewing tumour patients were analyzed using classical cytogenetics, comparative genomic hybridization, and fluorescence in situ hybridization.
Limitations
The study was retrospective and included only patients with confirmed diagnoses, which may limit generalizability.
Participant Demographics
Median age at diagnosis was 13 years, with 46% male and 54% female participants.
Statistical Information
P-Value
P=0.002 for overall survival associated with gain of 1q
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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