The rationale behind intradiscal O2-O3 therapy is the pain elicited by the mechanical compression of the nerve root, which is associated with periganglionic and periradicular inflammation. This study aimed to determine the effect of intradiscal ozone injection on pain score and satisfaction of patients with low back pain (LBP) secondary to disc herniation. Patients with LBP diagnosed with disc herniation were enrolled in this clinical trial. After prepping and draping the area, intradiscal injection of ozone/oxygen mixture (10 ml, 25μg/ml) was performed under fluoroscopy guide (c-arm). Pain score and patient satisfaction were assessed prior to the injection (baseline) and 1, 3, 6, 12 and 24 months after the injection. Sixty three patients (24 males, 39 females) with mean age of 53.3 ±2.0 y enrolled in the study. The mean±standard deviation (SD) of pain score before intervention was 6.968 ±0.11. Pain score was reduced to 4.25±0.19 at 1 month, 4.33±0.20 at 3 months, 4.87 ±0.21 at 6 months and 5.22 ±0.20 at 24 months. According to the modified MacNab scale success of pain relief was as follows: excellent: 4 (6.3%), good: 17 (26.98 %), sufficient: 13 (20.63 %), poor: 13 (20.63 %), no result: 11 (17.46%), negative: 4 (6.3 %). Intradiscal ozone therapy was determined to provide improved outcomes in patients with single level of bulging and protrusion.

In this study, characteristics and analgesic treatment of patients with pancreatic cancer who applied to the algology clinic were evaluated. Demographic characteristics, pathologic diagnosis, metastasis, cancer treatment, and analgesic interventions in 60 patients with pancreatic cancer, referred to the algology clinic, were examined. The application time of the patients to the clinic was 3.9+-0.92 months after the diagnosis, and the visual analog scale (VAS) was 6.96+-0.11 at the initial assessment. According to the analgesic step ladder protocol, a nonopiod + weak opioid + strong opioid (transdermal) were applied in 58.33%, a nonopioid + weak opioid + strong opiod (oral) in 5%, and nonopiod + weak opioid in 36.66% of the patients. Adjuvant pain medications were used in 68.33% of the patients (benzodiazepine, 80.48%; antidepressant, 19.51%), while no adjuvant was used in 31.66% of the patients. While the mean survival time for patients with pancreatic cancer changed from 3 to 6 months, it was 8.48+-7.46 months for patients who applied to the pain clinic. Abdominal pain in pancreatic cancer is the most common symptom that negatively affects the quality of life. A good analgesia improves the survival, while pain decreases the survival. The results of the present study demonstrated that the survival of the patients with metastatic pancreatic cancer who received effective pain therapy in the algology clinic may be longer.