Abstract:Objective To investigate the effect of hyperbaric oxygen on brain-derived neurotrophic factor(BDNF) in patients with acute ischemic stroke. Methods One hundred and thirty patients with acute ischemic stroke hospitalized in the Department of Neurology of our hospital from February 2014 to December 2016 were selected as the objects of study. According to the envelope principles, all the patients were equally divided into the observation group and control group with 65 patients in each group. The control group was given conventional treatment; the observation group received hyperbaric oxygen therapy based on the conventional treatment, 10 days for a course of treatment. After treatment for 3 courses, the outcome in the two groups was recorded. Results The efficacy of the observation group was statistically higher than that of the control group (χ2 = 4.298, P = 0.038) . The ESS scores after treatment in the two groups were significantly higher than those before treatment (t = 19.996 and 10.552, P = 0.000), the ESS score after treatment in the observation group was statistically higher than that in the control group (t = 11.095, P = 0.000). The serum BDNF levels after treatment in the two groups were statistically higher than those before treatment (t = 7.787 and 3.198, P = 0.000 and 0.002); comparison of serum BDNF levels between the two groups, using independent samples t-test, the difference was statistically , the serum BDNF level after treatment in the observation group was significantly higher than that in the control group (t = 5.827,P = 0.000). The daily living ability of the observation group was higher than that of the control group (χ2 = 5.632,P = 0.018). Conclusions Hyperbaric oxygen in the treatment of patients with acute ischemic stroke can promote the secretion of serum BDNF, so as to improve the patient’s neurological function and daily life ability and improve the prognosis; therefore, it has good application value.