Abstract:Objective To analyze the correlation between blood indicators and the severity, classification and prognosis of hearing loss in patients with sudden deafness through retrospective research, and to initially explore the microcirculation factors related to patients with sudden deafness, so as to provide references for clinical treatment. Methods The hospitalization data of 143 patients with sudden deafness in the First Hospital of Shanxi Medical University from September 2019 to April 2021 were collected, and statistical analysis was carried out using SPSS21.0 statistical software. Each parameter index was related to the severity and score of sudden deafness. The type and prognosis were analyzed by single-factor ANOVA, LSD was used for pairwise comparison, and multivariate logistic regression was used to analyze the relationship between the different indicators and the prognosis of patients with sudden deafness. Results APTT value (P=0.033), NLR value (P=0.017), sudden deafness time (P=0.003, =-0.062, OR=0.940), flat decline type (P=0.019, =-1.806, OR=0.164) Factors such as mild (P=0.017) and moderate (P=0.034, =-1.745, OR=0.175) are related to the curative effect of patients with sudden deafness, P<0.05, the difference is statistically significant. Conclusion The APTT and NLR values ??are related to the prognosis of patients with sudden deafness. The duration of sudden deafness, hearing severity, and the flat-declining hearing curve can independently affect the patient's curative effect. The shorter the sudden deafness time and the less severe the hearing, the better the prognosis. , The patient’s hearing curve is flat and has a better prognosis than other types of curves.