Ferromagnetic materials in patients: detection before MR imaging

A number of surgical clips and other metallic materials embedded within patients have ferromagnetic properties that present a potential hazard when in the strong fields associated with magnetic resonance imaging. Several types of magnetometers and metal detectors were investigated as possible pre-imaging screening devices. The sensitivities and costs of these devices are given.     

Overnutrition in Prenatal and Neonatal Life: A Problem?

In most areas of the world nutritional problems are related to quantitative and qualitative deficiencies. However, in North America the possible harmful effects of overnutrition deserve careful consideration.

Little information is available concerning overnutrition during prenatal and neonatal life. The author draws attention to this possibility by outlining clinical and biochemical disorders occurring in the newborn which are related to excessive ingestion of calories, fat, protein, vitamins and minerals before and after birth. Particular reference is made to the ingestion of nutritional substances during pregnancy in amounts that are relatively innocuous to the mother but may be harmful to the infant in utero.

Further research in this interesting field is needed in an attempt to assess the effect on the fetus of qualitative overnutrition during pregnancy.

     

Cost effectiveness of a community based exercise programme in over 65 year olds: cluster randomised trial

OBJECTIVE: To assess the cost effectiveness of a community based exercise programme as a population wide public health intervention for older adults. DESIGN: Pragmatic, cluster randomised community intervention trial. SETTING: 12 general practices in Sheffield; four randomly selected as intervention populations, and eight as control populations. PARTICIPANTS: All those aged 65 and over in the least active four fifths of the population responding to a baseline survey. There were 2283 eligible participants from intervention practices and 4137 from control practices. INTERVENTION: Eligible subjects were invited to free locally held exercise classes, made available for two years. MAIN OUTCOME MEASURES: All cause and exercise related cause specific mortality and hospital service use at two years, and health status assessed at baseline, one, and two years using the SF-36. A cost utility analysis was also undertaken. RESULTS: Twenty six per cent of the eligible intervention practice population attended one or more exercise sessions. There were no significant differences in mortality rates, survival times, or admissions. After adjusting for baseline characteristics, patients in intervention practices had a lower decline in health status, although this reached significance only for the energy dimension and two composite scores (p<0.05). The incremental average QALY gain of 0.011 per person in the intervention population resulted in an incremental cost per QALY ratio of 17 174 (95% CI = 8300 to 87 120). CONCLUSIONS: Despite a low level of adherence to the exercise programme, there were significant gains in health related quality of life. The programme was more cost effective than many existing medical interventions, and would be practical for primary care commissioning agencies to implement.     

A prospective association between cocoon use in infancy and childhood asthma

There is increasing evidence for a role for bedding items in the development of asthma. The use of some forms of synthetic bedding, such as foam mattresses and pillows, is associated with a significantly increased risk of childhood wheeze. Our aim was to examine prospectively whether the use of synthetic cocoon/baby nests in infancy is associated with the subsequent development of wheeze in childhood. Data collected in 1988 as part of the Tasmanian Infant Health Survey were linked to the cross-sectional Childhood Asthma Survey conducted in 1995 in Tasmania, Australia. We were able to match 863 records out of the 1111 in the 1988 survey. Information including parental, child-care, and the infant's sleeping environment was collected at home interview in 1988 when the infant was 1 month of age. Data including sleep environment and asthma symptoms were available for each child at age 7 years. A generalised linear model was used to calculate the adjusted relative risk (RR) estimates for symptoms of wheeze and infant cocoon use. For children who were placed in a cocoon in infancy, there was an increased risk of recent wheeze (adjusted RR = 4.33 [95% CI 2.08, 9.02]) and night wheeze (adjusted RR = 3.35 [95% CI 1.52, 7.39]) at age 7 years. In view of the increasing prevalence of childhood asthma, the identification of potentially modifiable environmental factors which might operate in infancy is of importance. The present findings implicate infant bedding choice as a significant factor and further studies on the infant sleeping environment are indicated.     

Population trends in sudden infant death syndrome

This review documents and assesses recent trends in sudden infant death syndrome. We review medical literature, Internet resources, and national governmental data. A striking reduction in SIDS incidence of more than 50% has been observed in various countries after interventions, particularly during the early 1990s, to reduce the prevalence of prone infant sleeping. A reduction in postneonatal mortality has accompanied these lower rates. Evaluation studies from several countries indicate that the SIDS rate drop is largely attributable to a decline in the proportion of babies sleeping prone. Within countries, the SIDS rate decline has not occurred to the same extent for different ethnic and socio-economic groups. Future public health activities must aim to address this issue. In the post-intervention era, the relative importance of the risk factors of side compared to supine sleeping and soft bedding near the infant's airway have become more evident. Recent death scene data indicate that a substantial proportion of the remaining SIDS deaths could be avoided by supine sleeping and by providing a safe sleeping environment for all infants.     

Improving cardiovascular outcomes in Nova Scotia (ICONS): a successful public-private partnership in primary healthcare

Broadly defined, disease, or health management, is a focused application of resources to improve patient outcomes; its premise: things can be better. In particular, the gap between what best care could be, and what usual care is, can be reduced and, consequently, care and outcomes can be improved. This paper reviews the evolution of the partnership/measurement paradigm of disease management and considers its value in sustaining Canadian healthcare. Lessons from ICONS (Improving Cardiovascular Outcomes in Nova Scotia), a major public-private health partnership of physicians, nurses, pharmacists, patients and their advocacy groups, government and industry, are highlighted. Launched in 1997, ICONS' proof-of-concept phase ended in 2002. Due to its positive impact on the cardiovascular health of the population and its integrated and accountable administrative processes, ICONS became an operational program of the Nova Scotia Department of Health. This successful community-based partnership represents a major achievement in organizational behaviour in the arena of primary healthcare. It supports optimal care as evidence-based and seamless, recognizing the patient as the nucleus. It should be considered for other disease states and constituencies where the goals are closing care gaps and delivering the best health to the most people at the best cost.