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991.

Background  

The purposes of this study are to document psychosocial stressors and medical conditions associated with development of insomnia in school-age children and to report use of hypnosis for this condition.  相似文献   
992.
993.
The discussion of the scientific evidence linking cancer to environmental and occupational exposures has been an area of contention for atleast the past three decades, since the assertion in 1977 by Higginson and Muir that 80% of all cancers were due to environmental exposures. Over the past three decades, there have been additional efforts to estimate the proportion of cancer due to these involuntary exposures, including the 1981 monograph by Doll and Peto and the more recent reports by the Harvard Center for Cancer Prevention. In this paper, we review the evidence that Doll and Peto and other authors have summarized, provide an alternative interpretation of the evidence, and caution against the very idea of attributing specific fractions or proportions of cancer to particular factors. We also review the scientific evidence, particularly epidemiologic evidence, regarding the contribution of environmental and occupational exposures to the overall cancer burden in the US. We conclude with a call for action to prevent exposures to environmental and occupational carcinogens.  相似文献   
994.
Background: Anterior cruciate ligament reconstruction is a complex outpatient surgical procedure often associated with pain. Traditionally, the procedure is performed under general anesthesia and often requires the use of the PACU. Refractory pain and/or nausea/vomiting occasionally leads to an unplanned hospital admission. In this study, the authors examine the associations of nerve block analgesia for these patients and its associated reductions in PACU use, hospital admission, and hospital costs.

Methods: This was an observational, nonrandomized study in which existing data regarding patients' day-of-surgery outcomes were merged with hospital cost data. We reviewed a consecutive sample of 948 men and women who were in good health and underwent anterior cruciate ligament reconstruction in an outpatient surgery unit between July 1995 and June 1999.

Results: The use of nerve block analgesia was associated with reduced PACU admissions to 18% and decreased unplanned hospital admission rates from 17% to 4%. Multivariate linear regression analysis showed that patients bypassing the PACU had an associated hospital cost reduction of 12% (P = 0.0001), whereas patients who needed hospital admission had an associated hospital cost increase of 11% (P = 0.0003).  相似文献   

995.
Ipsapirone is an anxiolytic drug and a serotonin1A (5-HT1A) agonist. The aim of the present study was to investigate the effects of low doses of ipsapirone on the hormonal and behavioral response to three stress procedures: immobilization, forced swim and conditioned emotional response (CER). We examined the effect of ipsapirone (0.1, 0.5 or 1.0 mg/kg) on plasma renin concentration (PRC), adrenal corticotropic hormone (ACTH), corticosterone, prolactin and defacation in rats exposed to immobilization, forced swim or CER stress. All three stressors significantly elevated all the hormone levels (P < 0.01). Immobilization-induced elevations of PRC, and corticosterone were inhibited by the highest doses of ipsapirone (0.5 and 1 mg/kg, i.p.). However, ipsapirone did not modify the immobilization-induced elevations of plasma ACTH, prolactin or defecation. Ipsapirone was relatively ineffective at reducing the endocrine responses to forced swim. Ipsapirone reduced some, but not all of the hormonal responses to CER stress. CER-induced elevations of corticosterone and prolactin were not inhibited by ipsapirone. However, the ACTH response to CER was significantly (P < 0.01) inhibited by all doses of ipsapirone and the highest dose of ipsapirone attenuated the renin response. In contrast with the hormonal responses, ipsapirone inhibited all of the behavioral responses to CER stress. Ipsapirone inhibited CER-induced freezing behavior and defecation, while dose-dependently reversing the suppressive effect of CER on exploring, grooming and rearing behaviors. In conclusion, there is a dissociation between the influence of ipsapirone on the endocrine and behavioral responses to CER stress. Ipsapirone also has differential effects on the neuroendocrine response to the three stressors studied. Ipsapirone was most effective in attenuating the hormonal responses to CER, followed by immobilization and swim stress. Of the hormones studied, the stimulation of renin secretion after exposure to the three stressors was most sensitive to ipsapirone, while corticosterone and prolactin were the least sensitive to ipsapirone.  相似文献   
996.

Background  

Chronic arsenic exposure is associated with an increased risk of skin, bladder and lung cancers. Generation of oxidative stress may contribute to arsenic carcinogenesis.  相似文献   
997.
STUDY OBJECTIVES: To explore the quality of the dying experience and associations to higher quality ratings for people who died in an ICU. DESIGN: Retrospective study using medical record review and surveys of family members with the Quality of Dying and Death (QODD) instrument. SETTING: Four ICUs affiliated with a university and a Veterans Affairs Medical Center. PARTICIPANTS: Ninety-four family members of 38 ICU decedents. MEASUREMENTS AND RESULTS: We explored associations between components of the ICU experience and the overall rating of the quality of the dying experience. Overall, family members reported that symptoms were poorly controlled: pain under control most or all of the time in 47%, and breathing comfortably most or all of the time in 3% of patients. Families expressed a moderate and variable view of the quality of dying resulting in an overall ICU QODD score of 60 +/- 14 (on a scale of 0 to 100) [mean +/- SD]. Higher ICU QODD scores were associated with control of pain (r = 0.42, p = 0.009), control of events (r = 0.62, p < 0.001), a "preparation for death" aspect of the dying experience--feeling at peace with dying (r = 0.69, p < 0.001), and a "whole-person concern"--keeping one's dignity and self-respect (r = 0.50, p < 0.001). CONCLUSIONS: After adjusting for symptom and personal care scores, certain whole-person and preparation-for-death aspects of the dying process, and not aggressiveness of end-of-life care, remained the most associated to quality ratings. While future research should explore the important predictors of quality of dying in the ICU, this study suggests that care at the end of life in the ICU include not only managing pain, but also supporting dignity, respect, and peace, and maximizing patient control.  相似文献   
998.
Muscle spasm and hypertonia limit mobility in children with spastic cerebral palsy. This double-blind, placebo-controlled, randomized controlled clinical trial studies the clinical efficacy of a low dose of diazepam in enhancing movement in children with spastic cerebral palsy. One hundred and eighty children fulfilled the criteria and were randomly allocated to receive one of two doses of diazepam or placebo at bedtime; 173 completed the study. There was a significant reduction of hypertonia, improvement in the range of passive movement, and an increase in spontaneous movement in the children who received diazepam. There was no report of daytime drowsiness. In developing countries, where cost factors often determine choice of drug, diazepam is a cheap and effective way of relieving spasm and stiffness, optimizing physical therapy and facilitating movement in children with spasticity.  相似文献   
999.
1000.
We reflect on the proceedings of a symposium at a conference of the Centers for Disease Control and Prevention National Center on Birth Defects and Developmental Disabilities. We present examples of bridging the gap between science and policy to achieve improvements in children's health through case studies in early hearing detection and intervention, folic acid fortification to prevent birth defects, sleep positioning recommendations to reduce infant mortality, and workplace lactation support programs. We discuss case studies that present different policy strategies (public health law and voluntary practices) for improving public health. These case studies demonstrate both the power of policy as a tool for improving children's health and the challenges of communicating public health research to policy decisionmakers.  相似文献   
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