Temporary and Permanent Auditory Effects Associated with Occupational Coexposure to Low Levels of Noise and Solvents.

This study aimed to assess temporary and permanent auditory effects associated with occupational coexposure to low levels of noise and solvents. Cross-sectional study with 25 printing industry workers simultaneously exposed to low noise (<80 dBA TWA) and low levels of solvents. The control group consisted of 29 industry workers without the selected exposures. Participants answered a questionnaire and underwent auditory tests. Auditory fatigue was measured by comparing the acoustic reflex threshold before and after the workday. Workers coexposed to solvents and noise showed significantly worse results in auditory tests in comparison with the participants in the control group. Auditory brainstem response results showed differences in III−V interpeak intervals (p = 0.046 in right ear; p = 0.039 in left ear). Mean dichotic digits scores (exposed = 89.5 ± 13.33; controls = 96.40 ± 4.46) were only different in the left ear (p = 0.054). The comparison of pre and postacoustic reflex testing indicated mean differences (p = 0.032) between the exposed (4.58 ± 6.8) and controls (0 ± 4.62) groups. This study provides evidence of a possible temporary effect (hearing fatigue) at the level of the acoustic reflex of the stapedius muscle. The permanent effects were identified mainly at the level of the high brainstem and in the auditory ability of binaural integration.

Adult Perfomance on the Sustained Auditory Attention Skill Test.

Introduction The Sustained Auditory Attention Ability Test (SAAAT) is an instrument used to assess sustained auditory attention in children. Difficulties related to this ability are not unique to children alone, as adults have been observed to present with the same deficits. Therefore, there is a need to adapt instruments like the SAAAT and provide reference values for adults. Objective To assess adult performance on the SAAAT. Methods Approved by the Human Research Ethics Committee under n° 034/2011. The sample consisted of 30 participants aged between 18 and 30 years old (average age = 24.2 years old), female and male. The inclusion criteria were: peripheral hearing within normal limits, type A tympanometric curve, and no attention-related complaints. The participants were submitted to Tonal Audiometry, Logoaudiometry, Immitanciometry and to the SAAAT. Results The following mean values and standard deviations (SD) were observed: inattention = 1.7 (SD = 2.2) and impulsivity = 0.8 (SD = 0.9) error types. For the SAAAT, the mean value for the total error score was 2.4 (SD = 2.6), and for the decrease in vigilance, it was 0.3 (SD = 0.5). When comparing the performance of adults and children, a statistically significant difference was observed for inattention ( p = 0.000) and impulsivity ( p = 0.001) error types, as well as in the total error score ( p = 0.000) and in decreased vigilance ( p = 0.0003). Conclusion The performance of adults in the SAAAT differed from the children's parameters, since adults showed lower scores in all variables of the instrument.

Adult Perfomance on the Sustained Auditory Attention Skill Test

Abstract Introduction The Sustained Auditory Attention Ability Test (SAAAT) is an instrument used to assess sustained auditory attention in children. Difficulties related to this ability are not unique to children alone, as adults have been observed to present with the same deficits. Therefore, there is a need to adapt instruments like the SAAAT and provide reference values for adults. Objective To assess adult performance on the SAAAT. Methods Approved by the Human Research Ethics Committee under n° 034/2011. The sample consisted of 30 participants aged between 18 and 30 years old (average age = 24.2 years old), female and male. The inclusion criteria were: peripheral hearing within normal limits, type A tympanometric curve, and no attention-related complaints. The participants were submitted to Tonal Audiometry, Logoaudiometry, Immitanciometry and to the SAAAT. Results The following mean values and standard deviations (SD) were observed: inattention = 1.7 (SD = 2.2) and impulsivity = 0.8 (SD = 0.9) error types. For the SAAAT, the mean value for the total error score was 2.4 (SD = 2.6), and for the decrease in vigilance, it was 0.3 (SD = 0.5). When comparing the performance of adults and children, a statistically significant difference was observed for inattention (p = 0.000) and impulsivity (p = 0.001) error types, as well as in the total error score (p = 0.000) and in decreased vigilance (p = 0.0003). Conclusion The performance of adults in the SAAAT differed from the children's parameters, since adults showed lower scores in all variables of the instrument.

The treatment of pediatric gastroenteritis: a comparative analysis of pediatric emergency physicians' practice patterns.

OBJECTIVES: Acute gastroenteritis is a very common emergency department (ED) diagnosis accounting for greater than 1.5 million outpatient visits and 200,000 hospitalizations annually among children in the United States. Although guidelines exist to assist clinicians, they do not clearly address topics for which evidence is new or limited, including the use of antiemetic agents, probiotics, and intravenous (IV) fluid rehydration regimens. This study sought to describe the ED treatments administered to children with acute gastroenteritis and to compare management between Canadian and U.S. physicians practicing pediatric emergency medicine (PEM). METHODS: Members of PEM research networks located in Canada and the United States were invited to participate in a cross-sectional, Internet-based survey. Participants were included if they are attending physicians and provide care to patients <18 years of age in an ED. RESULTS: In total, 235 of 339 (73%) eligible individuals responded. A total of 103 of 136 Canadian physicians (76%) report initiating oral rehydration therapy (ORT) in children with moderate dehydration, compared with 44 of 94 (47%) of their U.S. colleagues (p<0.001). The latter more often administer antiemetic agents to children with vomiting (67% vs. 45%; p=0.001). American physicians administer larger IV fluid bolus volumes (p<0.001) and over shorter time periods (p=0.001) and repeat the fluid boluses more frequently (p<0.001). Probiotics are routinely recommended by only 35 of 230 respondents (15%). CONCLUSIONS: The treatment of pediatric gastroenteritis varies by geographic location and differs significantly between Canadian and American PEM physicians. Oral rehydration continues to be underused, particularly in the United States. Probiotic use remains uncommon, while ondansetron administration has become routine. Children frequently receive IV rehydration, with the rate and volume administered being greater in the United States.