European journal of emergency medicine : official journal of the European Society for Emergency Medicine
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Meta Analysis
Application of decision rules on diagnosis and prognosis of renal colic: a systematic review and meta-analysis.
Renal colic is a prevalent emergency department presentation resulting from urolithiasis. Clinical decision rules for the diagnosis of urolithiasis were developed to help clinicians with better judgment. In this systematic review, we assessed the performance of prediction rules on urolithiasis diagnosis and prognosis. ⋯ In the high risk score group, prevalence of clinically important alternative diagnosis was 1% (95% confidence interval 0%-2%) and 11% (95% confidence interval 8%-13%) of patients needed intervention. STONE scoring system is useful in estimating the prevalence of urolithiasis but high heterogeneity among the studies makes it unsuitable for application. Other decision tools were poorly studied and cannot be recommended for clinical use.
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Medically unexplained symptoms, defined as physical symptoms for which no organic pathology can be found, represent 4% of all emergency department attendances annually. The standard management of these patients involves extensive investigation to rule out organic pathology, followed by simple reassurance. We conducted a literature review to determine if there was any intervention that could improve these patient's symptoms and reduce emergency department attendances. ⋯ Three studies tested cognitive behavioural therapy, with two finding a reduction in emergency department attendance. Overall, evidence regarding interventions for patients with medically unexplained symptoms in the emergency department is limited and of a variable quality, despite comprising 4% of emergency department attendances. Further research is required to determine the best intervention for this challenging patient group.
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We aimed to both quantitatively and qualitatively describe interventional research performed in emergency medical communication centres. We conducted a systematic review of articles published in MEDLINE, Cochrane Central Register of Controlled Trials and Web of Science. Studies evaluating therapeutic or organizational interventions directed by call centres in the context of emergencies were included. ⋯ Few interventional studies have been performed in call centres. Studies mainly involved simulation and focussed on cardiac arrest. The quality of studies needs improvement to allow for a better recognition and understanding of emergency medical call control.
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Presentation to the emergency department with renal colic has been reported as between 6.7 and 27.9 per 1000 emergency department visits. Clinicians rely on various radiological investigations for the prompt and accurate diagnosis of urolithiasis. This review assesses the validity of the colour Doppler ultrasonographic twinkling artefact (TA) sign as a diagnostic tool for the presence of urolithiasis. ⋯ Meta-analysis of the studies that provided sufficient data resulted in a pooled sensitivity and specificity for the ultrasonographic TA sign of 88.16 [95% confidence interval (CI): 87.07-89.19%] and 79.22% (95% CI: 73.41-84.26%) respectively, with an estimated summary effect of 3.84 (95% CI: 1.08-6.60, P 0.006) in log odds ratio terms. There was significant interstudy heterogeneity as suggested by an I-statistic of 94.51% (95% CI: 94.51-99.58) and an estimated τ parameter of 7.21 (SE: 7.44). Despite the suboptimal pooled sensitivity and specificity of the TA sign and the large heterogeneity between published studies, the current body of evidence suggests that the colour Doppler ultrasonographic TA sign may be useful as a complementary tool in the diagnostic workup of patients with suspected urolithiasis.
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Meta Analysis
Effectiveness of nurse-initiated X-ray for emergency department patients with distal limb injuries: a systematic review.
The aim of this study was to systematically review the literature on the effectiveness of nurse-initiated X-ray for emergency department patients with distal limb injuries. The review protocol was registered with PROSPERO and CINHAL, MEDLINE and EMBASE were searched for studies comparing nurse-initiated vs physician-initiated X-ray. Because of heterogeneity of patients, providers and outcomes, a meta-analysis was not performed. ⋯ The quality of evidence for each outcome ranged from very low-to-moderate. Compared with physician-initiated X-ray, nurse-initiated X-ray uses no more resources, is safe and acceptable to patients. Nurse-initiated X-ray did not reduce time to X-ray or waiting time but in some studies, reduced emergency department length of stay and unplanned follow-up.