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Bilateral sensorineural hearing disorders in children: etiology of deafness and evaluation of hearing tests.

OBJECTIVE: The purpose of this study was to determine the etiology of bilateral sensorineural hearing disorders in children and to evaluate the performed hearing tests by comparison of the results of the objective and subjective tests. METHODS: The medical history and the hearing tests (behavioral observation audiometry, acoustic evoked potentials and pure tone audiometry) of 106 bilaterally hearing impaired children were analyzed in a retrospective follow-up study. RESULTS: The total group included 52 males and 54 females. The ages at first diagnosis ranged from 4 months to 11 years with a mean age of 42 months and a median of 33 months. The degree of hearing loss for the better hearing ear was mild in one child, moderate in 28 children, severe in 29 children, profound in 32 children and total in 16 children. The delay between the first examination and diagnosis ranged from 0 to 597 days with a mean of 83 days and a median of 28 days. In 47 children (44%) no cause of hearing impairment could be determined. Nineteen children (18%) had a history of familial hearing loss, 40 (38%) suffered from acquired hearing loss (seven children had prenatal causes, 21 perinatal and 12 postnatal). A comparison between behavioral observation audiometry and brainstem evoked response audiometry revealed a statistically good agreement. Twenty-nine children (32%) showed progressive hearing loss, which was defined as a threshold shift of +10 dB or more in the pure tone average in at least one ear. CONCLUSIONS: In a significant number of children with early hearing impairments the etiology still remains uncertain. Further research in the field of genetic disorders will diminish this number. Evaluation of hearing tests showed that behavioral observation audiometry still is an excellent tool in the hands of an experienced examiner. The age at identification of hearing disorders in industrialized countries still is unacceptably high. To obtain ideal care of hearing impaired children, universal neonatal hearing screening programs are mandatory.

Age Distribution↗

Reporting alcohol-impaired drivers: results from a national survey of emergency physicians.

STUDY OBJECTIVE: The purpose of this exploratory study was to learn of physicians' opinions on mandatory reporting of alcohol-impaired drivers they encounter in the course of their clinical work to the police or authorities from the Division of Motor Vehicles. DESIGN AND PARTICIPANTS: Two thousand four hundred sixty-four physicians randomly selected from the American College of Emergency Physicians were sent an anonymous, one-time only, self-administered questionnaire seeking demographic information and assessing attitudes toward mandatory reporting and alcohol treatment. MEASUREMENTS AND MAIN RESULTS: One thousand fifty-five physicians returned the survey. Seventy-eight percent of respondents agreed with mandatory reporting. More than half expressed strong agreement. Through canonical discriminant analysis we are able to identify the complex factors influencing attitude toward mandatory reporting. CONCLUSION: Although our preliminary results must be interpreted with caution, it appears that with the appropriate legal safeguards, physicians are supportive of mandatory reporting of the alcohol-impaired driver encountered in the course of clinical work.

Adult↗

Vaccination policies in the military: an insight on influenza.

Influenza, despite its generally benign clinical course, is accompanied by absenteeism from work, acute suffering and even mortality, mainly in the elderly and in subjects who have high-risk medical conditions. Its prevention consists of strain specific vaccination, which must be repeated annually due to the high antigenic variability of the influenza virus. Influenza may represent an important obstacle to military readiness, particularly when considering its infectivity within closed communities. Despite such epidemiological situations, influenza vaccination is seldom included in the compulsory vaccination programme of the military on a global level. This may be due to several reasons, namely, a lack of confidence in the vaccine's effectiveness, the need for annual administrations (with expansion of economic and organisational efforts), false assumption that influenza is a disease with a minor impact, contradictory results of cost-effectiveness analyses (examples of which have yet to be made specifically for the military environment). The availability of more effective, economic and easy to administer vaccines, together with detailed and tailored cost-effectiveness analyses, may have a beneficial effect on the role the military plays in the fight against influenza across the globe.

Cost-Benefit Analysis↗

Study to increase the frequency of autopsies performed for cases of infant deaths--proposed revision of the law on postmortem examination and corpse preservation and other related regulations.

By definition, sudden infant death syndrome (SIDS) requires diagnosis through exclusion by conducting an autopsy. To obtain a reliable diagnosis of this disease, an autopsy is essential. However, the frequency with which autopsies are conducted in Japan is not sufficient to meet the need associated with the diagnosis of SIDS. To improve this frequency, various public policies, such as nationwide implementation of the administrative autopsy system (medical examiner system), the application of the practice of autopsy approved by families, and legally required autopsies, are being considered; but none has been put into practice. On the other hand, attention has been called to the fact that the Law on postmortem examination and corpse preservation, which was instituted at the end of the Second World War, requires updating. In the current report, it is proposed that the following be added to Article 8, item 3 of this Law: "the Metropolitan or Prefectural Governor must insist that an autopsy be conducted on all cases of a sudden and unexpected death of an infant to investigate the cause of this death." At present, the annual incidence of SIDS in Japan is reported to be 500. To put the above-recommended legal requirement into practice, the estimated annual addition to the budget, if conducted as approved or an administrative autopsy, will be in the order of 150,000-500,000 dollar, which is within the prescribed limits for an appropriation.

Autopsy↗

Standard antireflux operations in patients who have Barrett's esophagus. Current results.

Several therapeutic options exist for patients who have BE, and treatment should be individualized (Fig. 1). The best option in patients who have a high surgical risk or who reject surgery is lifelong conservative treatment, adjusting the PPI dosage with pH-metric controls. In patients who have a low surgical risk the best option is Nissen fundoplication. Only in cases in which esophageal shortening prevents a tension-free fundoplication from being done is a Collis gastroplasty associated with a fundoplication indicated. Other options may be indicated only in exceptional circumstances: (a) duodenal switch, when, after multiple failures with previous surgery, the approach to the esophagogastric junction is extremely difficult; and (b) esophageal resection, when there is a nondilatable esophageal stenosis and in cases in which the histologic study reveals the presence of high-grade dysplasia. Whatever treatment is used, an endoscopic surveillance program is mandatory, since, with the exception of total esophagectomy, no therapeutic option completely eliminates the risk for progression to adenocarcinoma.

Algorithms↗

Screening for human immunodeficiency virus.

Screening for human immunodeficiency virus (HIV) antibodies as a means of preventing both the progress and spread of acquired immunodeficiency syndrome (AIDS) is problematic in terms of efficacy, effectiveness, and ethics. The few desired effects are mostly offset by greater and more certain undesirable effects on individuals and society.

AIDS Serodiagnosis↗

Use of systematic reviews in the development of new provincial public health policies in Ontario.

OBJECTIVES: The study determined whether the results of recently completed systematic reviews evaluating the effectiveness of public health interventions were used in the development of new provincial policies for public health practice. METHODS: This telephone survey included all members from five review groups who updated the Ontario Mandatory Health Programs and Services guidelines for Public Health in 2000. Independent variables included characteristics of the systematic reviews, organization, and the individual. Outcomes included the use of the reviews in developing new policies and the extent to which the reviews led to new recommendations for practice. Descriptive summaries as well as multiple linear regression were conducted. RESULTS: Eighty-five percent of decision-makers agreed to participate in the study. Ninety-six percent of respondents reported that the systematic reviews played a part in developing the new guidelines, while 47 percent indicated that the reviews contributed a great deal to the development of new recommendations for practice. The multiple linear regression model explained 42 percent of the variation in use of the reviews for developing new recommendations for practice. Significant predictor variables included the importance of the reviews in comparison to other sources of information and relevance of the reviews to the policy decisions. CONCLUSION: Public health decision-makers in Ontario have very positive perceptions of the usefulness of systematic reviews in policy development. Therefore, ongoing efforts to promote the usefulness and relevance of systematic reviews to public health decision-makers should remain a priority for health services researchers.

Cross-Sectional Studies↗