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Introduction:The use of triage systems is one of the most important measures in response to mass-casualty incidents (MCIs) caused by emergencies and disasters. In these systems, certain principles and criteria must be considered that can be achieved with a lack of resources. Accordingly, the present study was conducted as a systematic review to explore the principles of triage systems in emergencies and disasters world-wide.Methods:The present study was conducted as a systematic review of the principles of triage in emergencies and disasters. All papers published from 2000 through 2019 were extracted from the Web of Science, PubMed, Scopus, Cochrane Library, and Google Scholar databases. The search for the articles was conducted by two trained researchers independently.Results:The classification and prioritization of the injured people, the speed, and the accuracy of the performance were considered as the main principles of triage. In certain circumstances, including chemical, biological, radiation, and nuclear (CBRN) incidents, certain principles must be considered in addition to the principles of the triage based on traumatic events. Usually in triage systems, the classification of the injured people is done using color labeling. The short duration of the triage and its accuracy are important for the survival of the injured individuals. The optimal use of available resources to protect the lives of more casualties is one of the important principles of triage systems and does not conflict with equity in health.Conclusion:The design of the principles of triage in triage systems is based on scientific studies and theories in which attempts have been made to correctly classify the injured people with the maximum correctness and in the least amount of time to maintain the survival of the injured people and to achieve the most desirable level of health. It is suggested that all countries adopt a suitable and context-bond model of triage in accordance with all these principles, or to propose a new model for the triage of injured patients, particularly for hospitals in emergencies and disasters.
Introduction: High-intensity laser therapy (HILT) has been used more recently in the therapeutic protocols of pain managements. Adding therapeutic interventions to laser therapy is usual in clinical practice. This study aimed to evaluate the efficacy of HILT and beneficial effects of adding cointerventions to HILT in musculoskeletal pain management. Methods: The following databases were searched up to August 2018: Medline, PubMed, EMBASE, Cochrane, Google Scholar, Springer and ISI. The keywords of pain, HILT, high power laser therapy, laser therapy, photobiomodulation, physical therapy and rehabilitation were searched. The quality of the articles was assessed using the PEDro scale. The primary measure was pain severity expected to be reported in all studies. Effect size was calculated as standardized mean differences divided by the standard deviation of either the treatment or other group. Results: Initially 52 potential studies were found. Eighteen of these studies were excluded based on title and abstract. The full text of 34 remaining articles was screened and 15 of the studies were excluded. All included studies had high quality (PEDro ≥7). Approximately, 94% of included articles (n=18) revealed positive effects of HILT on pain. The effect sizes for HILT and placebo/comparator groups were 0.9-9.11 and 0.21-11.22 respectively. Also, the differences of effect size between two groups were between 0.03 to 5.85. Conclusion: It is early to determine that HILT may be an effective non-invasive agent in the management of musculoskeletal pain, as few studies have shown its clinical efficacy. Adding related co-interventions to HILT may enhance the beneficial effects of laser therapy. The variability of the study methods and outcomes suggests that further long-term follow-up, randomized controlled clinical trials with appropriate methodological design are needed regarding the effectiveness of HILT on pain.
Objective:Previous studies on bone mineral density (BMD) abnormalities associated with hypothyroidism are scarce and not conclusive. The effect of thyroid hormone therapy on BMD has shown mixed results. The aim of the present study was to determine the severities of osteoporosis in female patients with hypothyroidism in comparison to healthy women.Methods:This cross-sectional descriptive study was performed on 150 women aged over 50 years. Totally, 100 patients with primary hypothyroidism and 50 healthy subjects were enrolled in this study and divided into three groups. Group A, which consisted the patients who had been recently diagnosed with primary hypothyroidism. The second group of patients diagnosed with primary hypothyroidism for at least 2 years and was treated with levothyroxine (Group B). The third group of healthy individuals was selected as a control group (Group C). Blood samples were taken for the measurements of thyroid stimulating hormone (TSH), and bone densitometry was performed to determine the BMD reported as T-score in order to measure the severity of osteoporosis. T-score of the lumbar vertebra (L2-L4) and femoral neck were measured with dual energy X-ray absorptiometry and were compared between the three groups. Data were analyzed by SPSS using regression analysis and Mann–Whitney, Kruskal–Wallis, or analysis of variances statistical tests. The statistical significance was set at a P < 0.05.Findings:The average age of patients and baseline serum TSH levels in Group B was significantly different from the other two groups (P < 0.001). T-score of the lumbar spine (L2-L4) in Group B was significantly lower than the other groups (P = 0.01). The linear regression between serum TSH levels and BMD categories were not clearly associated. However, after removing the effect of the baseline TSH level in Group B, bone loss was significantly greater than the other two groups (P = 0.01).Conclusion:According to the present study, it seems that the treatment of hypothyroidism with thyroid hormones reduces both serum levels of TSH and bone density. Hence, proper control of this risk factor can be an effective way in prevention of osteoporosis.
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