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International Journal of Clinical Oncology

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01.12.2010 | Original Article

High perioperative level of oxidative stress as a prognostic tool for identifying patients with a high risk of recurrence of head and neck squamous cell carcinoma

verfasst von: Richard Salzman, Lukáš Pácal, Kateřina Kaňková, Josef Tomandl, Zuzana Horáková, Eva Tóthová, Rom Kostřica

Erschienen in: International Journal of Clinical Oncology | Ausgabe 6/2010

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Abstract

Background

The aim of the study was to investigate the relationships among (a) glutathione peroxidase (GPx) and malondialdehyde (MDA); (b) oncological characteristics (i.e., TNM classification, tumor grade), and; (c) prognosis of head and neck squamous cell carcinoma.

Methods

In a prospective cohort study, we followed 88 patients for 67.4 months (median 40.3) after surgery for head and neck squamous cell carcinoma. Activity of GPx was determined by ELISA and plasma MDA concentration by liquid chromatography.

Results

Lower GPx activity was observed in the T3/4 patients than in the T1/2 group. Tumor grade was significantly correlated with both GPx (P = 0.001) and MDA (P = 0.05, both Spearman). The perioperative level of MDA was higher in patients who later recurred during the follow-up period (n = 15) than in the complete remission group (P = 0.01, Mann–Whitney). Median disease-free interval and overall survival in the group with MDA > median were 29.5 and 32.0 months, respectively, and 38.4 and 40.3 months in the patient group with MDA ≤ median (P = 0.10 and P = 0.08, respectively; Kaplan–Meier). Patients with MDA levels higher than the median had a more than twofold greater risk of recurrence than patients with MDA levels smaller than the median (31.3 vs. 15.2%, P = 0.06, logrank).

Conclusion

Our results suggest that an increased MDA level at the time of initial surgery is found in patients with a high risk of recurrence, which suggests that each patient can be categorized according to risk of recurrence based on their MDA level at the time of initial surgery.

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Titel: High perioperative level of oxidative stress as a prognostic tool for identifying patients with a high risk of recurrence of head and neck squamous cell carcinoma
verfasst von: Richard Salzman
Lukáš Pácal
Kateřina Kaňková
Josef Tomandl
Zuzana Horáková
Eva Tóthová
Rom Kostřica
Publikationsdatum: 01.12.2010
Verlag: Springer Japan
Erschienen in: International Journal of Clinical Oncology / Ausgabe 6/2010
Print ISSN: 1341-9625
Elektronische ISSN: 1437-7772
DOI: https://doi.org/10.1007/s10147-010-0108-z

Springer Medizin

High perioperative level of oxidative stress as a prognostic tool for identifying patients with a high risk of recurrence of head and neck squamous cell carcinoma