Clinical Value Of Right Heart Contrast Echocardiography In Detecting Right-to-left Shunt In Patients With Sudden Sensorineural Hearing Loss

Objective:To explore the relationship between sudden sensorineural hearing loss and right-to-left shunt(RLS)by using contrast transthoracic echocardiography(c TTE)and in order to provide a new research direction and a powerful theoretical basis for the clinical diagnosis and treatment of sudden sensorineural hearing loss.Methods:A total of 100 patients with sudden sensorineural hearing loss diagnosed and treated in the otolaryngology Department of the Second Hospital of Shanxi Medical University from November 2021 to October 2022 were selected as the sudden deafness group,and another 100 patients without sudden deafness matched in age and sex were included as the control group.All patients in the sudden deafness group and control group underwent transthoracic echocardiography,contrast transthoracic echocardiography.The detection rate of RLS in resting state and Valsalva action state of all subjects was compared and analyzed.To compare the incidence of RLS,the size of shunt and the type of shunt between the sudden deafness group and the control group.The sudden deafness group was divided into RLS positive group and RLS negative group by c TTE and the differences in gender,concomitant symptoms,comorbidities,deafness classification and efficacy were compared between the two groups.Results:1.Compared with general clinical data,there were no significant differences in age,gender and clinical complications between the sudden deafness group and the control group(P > 0.05).2.There was a statistically significant difference in the detection rate of RLS between all subjects in the resting state and Valsalva movement(P < 0.05).3.In the sudden deafness group,the positive rate of RLS was 51%,small amount of RLS accounted for 33%,large amount of RLS accounted for 18%,latent type accounted for 17%,inherent type accounted for 34%,and the negative rate of RLS was 49%.In the control group,the positive rate of RLS was 28%,small amount of RLS accounted for21%,large amount of RLS accounted for 7%,latent type accounted for 16%,inherent type accounted for 12%,and negative RLS accounted for 72%.Compared with the control group,there were significant differences in RLS positive rate,mass diversion rate and shunt type in sudden deafness group(P < 0.05).4.The average age of RLS positive patients in sudden deafness group was 46.0years old,the average age of RLS negative patients was 54.0 years old,the average age of RLS positive patients in control group was 48.5 years old,and the average age of RLS negative patients was 57.5 years old,the RLS positive patients were younger than the RLS negative group,the difference was statistically significant(P < 0.05).Conclusion:The occurrence of sudden deafness is related to RLS,and the rate of detection of RLS can be effectively improved by using c TTE and Valsalva.