The American journal of emergency medicine
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The density ratio of gray matter (GM) to white matter (WM) on brain computed tomography (CT) (gray-to-white matter ratio, GWR) helps predict the prognosis of comatose patients after cardiac arrest. However, Hounsfield units (HU) are not an absolute value and can change based on imaging parameters and CT scanners. We compared the density of brain GM and WM and the GWR by using images scanned with different types of CT machines. ⋯ In this study, the HU values of GM and WM in the normal adult brain differed up to 23% among scanners. Unfortunately, the GWR may not compensate for the HU difference between GM and WM occurring between scanners. Therefore, rather than applying consistent GWR cut-offs, the protocol or manufacturer differences between imaging scanners should be considered.
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Case Reports
Priapism following erector spinae plane block for the treatment of a complex regional pain syndrome.
Erector spinae plane block (ESPB) is a novel block where local anesthetic is deposited between the erector spinae muscle and the underlying transverse process. Safety of this technique is emphasized in the majority of reports, but with a continued increase of its use, the number of related complications and side effects is likely to expand. We report the case of a patient treated with ESPB for a complex regional pain syndrome, complicated by the development of a priapism.
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Conventionally, pelvic fracture-related acute retroperitoneal hemorrhage (ARH) is life threatening and difficult to control. However, the use of angioembolization to treat fracture-associated ARH improves the hemodynamic stability of patients with pelvic fractures. The role of angioembolization in the management of patients with pelvic fracture-related ARH was examined. ⋯ The treatment for pelvic fracture patients declared dead upon arrival remains limited. However, pelvic fracture-related ARH could be controlled effectively with angioembolization. In addition to ARH, injuries to other organs may play a key role in the mortality of patients with pelvic fractures.
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Emergency Department (ED) patients presenting with spontaneous epistaxis who have anterior nasal packing are routinely prescribed systemic prophylactic antibiotics in spite of the lack of supporting evidence-based literature. Although there is literature that discusses infection rates with nasal packing for epistaxis and prophylactic antibiotics prescribing practices of otolaryngologists, this is the first study to our knowledge that examines the practices of emergency physicians. ⋯ The absence of infection supports previous findings and suggests that prophylactic antibiotic use for nasal packing in spontaneous epistaxis patients is not necessary. Further randomized controlled studies are necessary to definitively support this practice change.
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We aimed to investigate the association between platelet indices [platelet, plateletcrit (PCT), mean platelet volume (MPV) and platelet distribution width (PDW)] and gastrointestinal bleeding (GIB), as well as determine its severity and prognosis. ⋯ We think that platelet indices may be used in diagnosis of GIB, as well as in predicting bleeding severity and the prognosis.