Journal of burn care & research : official publication of the American Burn Association
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Comparative Study
A comparison of dexmedetomidine and midazolam for sedation in severe pediatric burn injury.
Dexmedetomidine (DEX) is an α-adrenergic agonist that has been used for sedation during invasive procedures and endotracheal intubation. In pediatric burn injury, DEX has been shown to be safe as a long-term sedative in the intensive care unit (ICU). However, comparison of DEX with traditional sedatives, such as midazolam, for sedation in pediatric burn injury has not been performed. ⋯ The DEX group had fewer hypotensive episodes (mean arterial pressure <60 mm Hg) while on infusion compared with the midazolam group (15.8 vs 29.7 episodes). Thus, it can be surmised that DEX is a safe and effective sedative for pediatric burn patients. Compared to midazolam, DEX may provide more effective sedation and less sedation-related hypotension.
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The treatment of pain produced during the management of burn injury has been an ongoing problem for physicians caring for these patients. The main therapeutic option for analgesia has been the repeated and prolonged use of opioids. The adverse effects of opioids are well known but the long term use of opioids which produces tolerance with accompanying dose escalation and dependence is most problematic. ⋯ This syndrome is manifest as enhanced pain, sensitivity and loss of analgesic efficacy in patients treated with opioids who actually become sensitized to painful stimuli. This article focuses on the treatment of burn pain and how current analgesic therapies with opioids may cause hyperalgesia and affect the adequacy of treatment for burn pain. This article also provides possible modalities to help therapeutically manage these patients and considers future analgesic strategies which may help to improve pain management in this complicated patient population.
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The objective of this study was to analyze the financial implications of the implementation of new institutional practice guidelines including greater outpatient care and earlier operative intervention in a provincial burn center. A retrospective review was performed including all patients admitted to the Burn Unit with burns up to 20% TBSA between August 2005 and July 2009, including 2 years before and after the new guidelines were introduced. Daily costs for the burn unit were used to calculate this portion of cost. ⋯ With an average of 66 such patients treated each year, potential annual cost savings are Can$1.3 million. If outcomes are not compromised, earlier operative management and greater outpatient care can translate into significant cost savings. A prospective analysis capturing all costs and patient quality of life is required for further assessment.
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Although pediatric burn injuries are common, there is a lack of burn-specific health outcome measurements for children. The American Burn Association and the Shriners Hospitals for Children have developed the Burn Outcomes Questionnaire (BOQ), which is a parent-report questionnaire measuring the functional outcome after burn in children aged 5 to 18 years. The aim of this study was to examine the psychometric properties of the Swedish version of the BOQ, assessing feasibility, reliability, and validity aspects. ⋯ The test-retest reliability was significant in the majority of subscales. Evidence of validity was shown by associations among the BOQ subscales and between BOQ subscales and measures of burn severity, heat sensitivity, fear-avoidance beliefs, and parent reports of the child's psychological problems. In conclusion, with the exception of a few subscales, this study supports the continued evaluation of the Swedish version of BOQ as a tool to measure outcome after burn in children aged 5 to 18 years.
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The use of laser Doppler imaging as a predictor of burn depth and hypertrophic scar postburn injury.
Hypertrophic scarring (HTS) is a fibroproliferative disorder that commonly develops after severe burn injuries. Overexpression of transforming growth factor-β (TGF-β) by an increased number of fibrocytes has been associated with increased extracellular matrix molecule expression leading to HTS. The most widely accepted adjuvant to clinical assessment of burn depth is laser Doppler imaging (LDI) and may predict injury to the dermis that corresponds to cellular and molecular changes associated with HTS. ⋯ In deep burn injuries, increased infiltration of fibrocytes occurs leading to an overexpression of TGF-β1 and connective tissue growth factor. More importantly, LDI was >90% accurate at predicting the need for excision and grafting. The accuracy of the decision to debride deep dermal burns to avoid HTS using both clinical parameters and LDI was supported by histological and biochemical measurements.