Emergency medicine journal : EMJ
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Randomized Controlled Trial
Comparison of three techniques using the Parkland Formula to aid fluid resuscitation in adult burns.
We performed a randomised study to compare the accuracy and speed of three different techniques (pen and paper, electronic calculator and a novel graphic device: 'nomogram') for calculation of resuscitation fluid requirements for adults in the first 24 h of burn injury, based on the Parkland Formula. We also assessed acceptability of each technique using visual analogue scores and qualitative analysis of free text responses. 28 participants performed 252 calculations using a series of computer generated simulated patient data. For nomogram, electronic calculator, pen and paper: Magnitude of error [low (≥25%), medium (≥50%), high (≥75%)]: [6.0%, 1.2%, 0%], [17.9%, 14.3%, 8.3%], [25%, 16.7%, 9.5%]; p<0.002. ⋯ It is low cost and robust, and provides a rapid means of detecting and preventing the large errors that we have shown can occur when an electronic device is used as the only method of calculation. We therefore suggest that the Parkland Formula nomogram is a suitable method for calculation of resuscitation fluid requirements in adult burns. Fluid requirement should, however, be reviewed frequently, and adjusted to ensure adequate organ perfusion.
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A short cut review was carried out to establish whether therapeutic anticoagulation is required for patients who have an incidental diagnosis of subsegmental pulmonary embolism (PE), which is asymptomatic. 4 studies were relevant to the three-part question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these papers are tabulated. The evidence suggests that patients with clinically unsuspected PE may have better prognostic outcomes than those with symptomatic presentations, especially if the PE is at the sub-segmental level. ⋯ However, this study included patients with cancer and was not restricted to patients with subsegmental PE. Consequently, the clinical bottom line is that level 1 evidence is required to answer this question. In the meantime decisions must continue to be informed by clinical judgment.
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The planning of regional emergency medical services is aided by accurate prediction of urgent ambulance journey times, but it is unclear whether it is appropriate to use Geographical Information System (GIS) products designed for general traffic. We examined the accuracy of a commercially available generic GIS package when predicting emergency ambulance journey times under different population and temporal conditions. ⋯ It is reasonable to estimate emergency ambulance journey times using generic GIS software, but in order to avoid insufficient regional ambulance provision it would be necessary to make small adjustments because of the tendency towards systematic underprediction.
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We sought to identify perceived barriers and facilitators to cardiopulmonary resuscitation (CPR) training and performing CPR among people above the age of 55 years. ⋯ We identified key facilitators and barriers for CPR training and performance in a purposive sample of individuals aged 55 years and older.
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Circulating leucine-rich α-2-glycoprotein-1 (LRG1) protein has been found in the plasma and urine of patients with acute appendicitis (AA) and may be useful for diagnosis. The present study aimed to investigate whether circulating LRGI mRNA levels also improve the early diagnosis of AA. ⋯ This research study was supported by a Direct Grant for Research from the Chinese University of Hong Kong (reference no.: 2041642) (HK$18000).