The Effect of Voice Auditory Stimulation on the Consciousness of the Coma Patients Suffering from Head Injury

Background and Objective: Coma due to brain injury is an important complication resulting in unconsciousness and reducing the capacity of responding to the environment. This study aimed at examining the effect of organized voice auditory stimulation, which was performed by a nurse, on the length of coma in the patients suffering from head injury.   Material and Methods: This clinical-trial study was applied on ۴۰ patients in the critical care unit of Panje Azar Hospital. The patients were randomly recruited to one of the two groups (each group ۲۰ patients). The intervention group was stimulated by the voice of a male nurse. Hearing stimulation was conducted in the morning and night shift about ۱۵ minutes each time for ۱۰ days. The patient consciousness was measured by GCS scale and analyzed by ANOVA and t-test (P<۰.۰۵), using SPSS Soft ware.   Results: ­ The average age of intervention and control group was ۲۸.۲۰ ± ۱۱.۴۹ and ۲۷.۸ ± ۱۳.۲۲, respectively. Before stimulation in the first day, there is no significant difference between the GCS of intervention group (۵.۹۵ ±۰.۶۸) and that of control (۵.۹۵ ± ۰.۶۴). The results indicate that the intervention group has become consciousness from the ۵th day (GCS of ۸.۲۵ ± ۱.۱۹) and control group (GCS of ۷.۸۰ ± ۱.۹۶) from the ۱۰th day.   Conclusion: The study show that the auditory stimulation in the intervention group compared to control group gives rise to the improvement of ­the level of consciousness in comatose patients .

کلیدواژه ها:

Organized auditory stimulation ، Consciousness level ، Coma ، Head injury ، Intensivecare unit ، تحریک شنوایی سازمان یافته ، سطح هوشیاری ، کما ، ضربه مغزی ، بخش مراقبت ویژه