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Ozone Therapy for Tumor Oxygenation: a Pilot Study
Bernardino Clavo1, Juan L. Pérez, Laura López
1Radiation Oncology and Research Unit, Las Palmas (Canary Islands), Spain.
Summary
Ozone therapy may improve tumor oxygenation, particularly in hypoxic tumors. This study suggests potential benefits for cancer treatment, warranting further investigation into ozone therapy for chemo-radiotherapy.
Area of Science:
- Oncology
- Medical Physics
Background:
- Tumor hypoxia is a known negative prognostic factor in cancer therapy.
- Ozone therapy is an alternative treatment for ischemic conditions.
Purpose of the Study:
- To evaluate the impact of systemic ozone therapy on tumor oxygenation.
- To explore the correlation between ozone therapy, tumor oxygen levels, and hemoglobin concentration.
Main Methods:
- Prospective study involving 18 patients receiving systemic ozone therapy via autohemotransfusion.
- Tumor oxygenation (pO(2)) measured using polarographic needle probes before and after ozone sessions.
- Statistical analysis to assess changes in oxygenation and correlations.
Main Results:
- No overall significant change in tumor oxygenation across all patients.
- Significant reduction in severely hypoxic tumor values (pO(2) ≤10 and ≤5 mmHg).
- Greater oxygenation improvement observed in initially more hypoxic tumors (inverse correlation).
- Reduced efficacy in patients with higher hemoglobin levels.
Conclusions:
- Short-term ozone therapy can enhance oxygenation in the most hypoxic tumors.
- Ozone therapy shows promise as an adjuvant treatment in chemo-radiotherapy.
- Further research is needed to confirm these findings and clinical utility.