جستجوی مقالات مرتبط با کلیدواژه « auditory stimulation » در نشریات گروه « پزشکی »

Auditory stimulation is a treatment method for sensory deprivation of comatose patients, which helps wake up the patient by activating the choroid plexuses in the brain.

This study aims to determine the effect of auditory stimulation with occupational noise on the consciousness level of comatose patients with traumatic brain injury (TBI).

This clinical trial was conducted on 50 comatose patients with TBI hospitalized in intensive care units of one of the hospitals in Qom City, Iran. They were randomly assigned to two groups of control (n=25) and intervention (n=25) using the block randomization method. The intervention group received auditory stimulation with occupational voice for 10 days in the morning and evening shifts, each for 15-20 minutes. The consciousness level of patients was evaluated before and after stimulation using the Glasgow Coma Scale (GCS). The obtained data were analyzed using descriptive statistics, the Chi-square test, the independent t test, and the generalized estimating equations model.

The Mean±SD ages of the patients were 35.92±14.68 years in the intervention group and 33.32±13.74 years in the control group. No significant difference was observed between the two groups regarding demographic or disease-related variables. The Mean±SD scores of GCS before the stimulation were 5.28±1.81 in the control group and 5.12±1.90 in the intervention group. This difference was not statistically significant. The Mean±SD scores of GCS after the stimulation were 6.60±3.25 in the control group and 8.80±4.05 in the intervention group. This difference was statistically significant (P=0.038). The level of consciousness in the intervention group increased more than in the control group in the 10th day of study.

Auditory stimulation with occupational noise can increase the consciousness level of comatose patients with TBI. Auditory stimulation can raise the consciousness level of these patients hospitalized in intensive care units.

Coma is one of the severe complications of traumatic brain injury. The study aimed to determine the effect of auditory sensory stimulation on the level of consciousness and cognitive function of patients with traumatic brain injury.

Methods & Materials:

 This study is a triple-blind randomized controlled clinical trial on 60 patients with traumatic brain injury selected using consecutive sampling. They were then randomly assigned to control and intervention groups. The patients in the intervention group received auditory sensory stimulation (twice a day for 15 minutes), while those in the control group only received the routine sounds of the ward (through headphones) for six days. The data were measured using the Glasgow Coma Scale and the Rancho Los Amigos Scale daily. SPSS software version 22 and descriptive and inferential statistics were used for data analysis.

According to the independent samples t-test, there was a significant increase in the level of consciousness on the third, fifth, and sixth days after the intervention among the patients in the intervention group compared to the control group (P=0.001). The findings of two-way repeated measures ANOVA revealed that auditory sensory stimulation could lead to a statistically significant improvement in the cognitive function of patients in the intervention group compared to the control group (P= 0.003).

Because of the improvement of the level of consciousness and cognitive function resulting from auditory sensory stimulation, this method is recommended to improve consciousness and cognitive function in patients with traumatic brain injury.

Prematurity means that the baby is born before 37 months of age, which leads to various problems, including hearing defects. Timely detection of hearing loss with the help of tools that facilitate this identification, can have a significant impact on the child’s personal, social, and educational development. The aim of the present study was to achieve better responses using the chirp stimulus along with the click. The chirp stimulus can compensate for the time delay caused by low-frequency stimuli and increases the simultaneous presentation of high and low frequencies in the cochlea. Therefore, the morphology of the waves is improved, and the amplitude of responses increases; thus, the waves can be better identified despite the prematurity of the infants.

Eighy newborns were examined in four groups, which were divided into term and preterm groups based on gestational age (including late preterm, moderate, and very preterm). The intensity of the click and chirp stimuli was fixed at 40 and 80 dB. The amplitude and latency of waves I, III, and V, the inter-peak latencies of I-III, III-V, and I-V, as well as the ratio of the amplitude of wave V/I were among the compared parameters. It should be mentioned in tables paired t-test was used in cases marked with *. Wilcoxon test was used in other cases.

The chirp stimulus mainly had less latency than the click stimulus and created a larger amplitude at a high intensity (80 dB). In the intensity close to the threshold, i.e. 40 dB, these findings were slightly different. The more developed the infants, the stronger the responses and the more effective the chirp stimulus in eliciting responses.

The chirp stimulus was more effective in obtaining multiple components of brainstem-evoked responses in infants, especially preterm infants, and investigating the status of their auditory system. The use of a higher sample size could lead to an increase in the growth of clinical use and better efficiency of diagnostic protocols and responses.

 Agitation in mechanically ventilated patients with decreased consciousness is a challenge in the ICU and a threat to the process of mechanical ventilation. On the other hand, controlling agitation through medication and imposing physical limitations is associated with a number of undesirable side effects.

 This study aimed to determine the effect of auditory and tactile stimulation by a family member on the level of agitation in patients with traumatic brain injury (TBI) and decreased consciousness.

 This quasi-experimental study was performed on 80 TBI patients with decreased consciousness who were admitted to the ICU of two teaching hospitals in southeastern Iran in 2019. Qualified patients were selected by convenience sampling and then randomized into the intervention (n = 40) and control (n = 40) groups. Data collection tools included a demographic form and the Richmond Agitation and Sedation Scale (RASS). For patients in the intervention group, the researcher first completed the demographic form and the RASS. Then, they underwent the experiment, which consisted of auditory and sensory stimulation by a family member for 10 minutes. After 30 minutes, the agitation level was measured again. This experiment was performed for seven consecutive days between 16:00 and 18:00 o’clock. Patients in the control group, however, did not receive any intervention other than routine care in the ICU. Data were analyzed in SPSS version 21 by using descriptive statistical tests and independent t-test, paired t-test, [analysis of] covariance, and chi-square test at the significance level of P < 0.05.

 The results indicated no significant difference in the level of agitation in the intervention and control groups between the first and fifth days; however, independent t-tests and analysis of covariance revealed that the patients who received auditory and tactile stimulation on the sixth and seventh days experienced significantly lower levels of agitation than the control group (P < 0.01).

 Auditory and tactile stimulation by family members is effective in decreasing the agitation of TBI patients with decreased consciousness. Therefore, it is suggested as a helpful intervention in nursing care programs.

Coma is one of the most important complications of brain injury. Comatose patients in the intensive care units are exposed to sensory deprivation. This study aims to survey the effect of family members' voice on level of consciousness of comatose patients hospitalized in the intensive care units.

In this single-blind randomized controlled trial, 40 comatose patients with brain injury with acute subdural hematoma in intensive care units were randomly assigned into two groups. The intervention group was stimulated twice a day each time 5-15 min with a recorded MP3 from family members' voice for 10 days. The patients' level of consciousness was measured with Glasgow Coma Scale before and after auditory stimulations. In the control group, GCS was measured without auditory stimulation with the same time duration like intervention group. Data analysis in software SPSS version 15 and using Chi-square test, independent t-test, paired t- test and analysis of variance with repeated measures was done.

On the first day before the intervention, there was no a statistically significant difference between the mean of GCS in both groups (P = 0.89), but on the tenth day after the intervention, there was a significant difference (P = 0.0001) between the mean GCS in both control and intervention groups. Also, there was a significant difference between the mean daily GCS scores in two groups (P = 0.003). The findings during ten days showed the changes in the level of consciousness in the intervention group from the 4 rd day of the study were more in the mean daily GCS scores than control group.

This study indicated that family members' voice can increase level of consciousness of comatose patients with acute subdural hematoma.