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Methods: All of 118 patients with SHL were randomly divided into an acupuncture and medication group 1 (group 1, 30 cases, 1 case dropped off), an acupuncture and medication group 2 (group 2, 30 cases), an acupuncture and medication group 3 (group 3, 31 cases) and a medication group (27 cases, 1 case dropped off ). The patients in the medication group were treated with conventional medication. On the base of the medication group, the patients in the group 1, 2, and 3 were treated with acupuncture at Ermen (TE 21), Tinggong (SI 19), Tinghui (GB 2), Fengchi (GB 20), etc. on the affected side, and EA at Ermen (TE 21)-Yifeng (TE 17), Tinghui (GB 2)-Yifeng (TE 17) alternately. The 3 groups were given continuous wave with frequency of 2 Hz, continuous wave with frequency of 50 Hz, and disperse-dense wave with frequency of 2 Hz/50 Hz respectively. The treatment was given once a day, 10 days were as one course, with 2 courses in total. Before and after treatment, the pure tone hearing threshold test was performed, and the curative effect of pure tone hearing threshold test and the curative effect of tinnitus, ear fullness and dizziness were compared in the 3 groups.
Results: After treatment, the pure tone hearing threshold test values of each group were lower than those before treatment (P<0.05); the total effective rates of pure tone hearing threshold test in the group 1, 2, and 3 were higher than that in the medication group (P<0.05), and the cured rate of the group 3 was higher than those in the medication group and the group 2 (P<0.05); the total effective rates of ear stuffiness in the group 1, 2, and 3 were higher than that in the medication group (P<0.05).
Conclusion: On the basis of conventional medication treatment, the addition of electroacupuncture can effectively improve the hearing and ear stuffiness symptoms of patients with SHL, and the disperse-dense wave with frequency of 2 Hz/50 Hz is more effective.
Reference: https://pubmed.ncbi.nlm.nih.gov/34628742/