The American journal of emergency medicine
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Vortex tubes are simple mechanical devices to produce cold air from a stream of compressed air without any moving parts. The primary focus of the current study is to investigate the feasibility and efficiency of nasopharyngeal brain cooling method using a vortex tube. Experiments were conducted on 5 juvenile pigs. ⋯ Similarly, by using medical air cylinders at fill-pressure of 2265 PSI and down regulate the inlet pressure to the vortex tube to 50 PSI, brain temperature could be reduced more rapidly by blowing -22°C ± 2°C air at a flow rate of 50 L/min; brain-body temperature gradient of -8°C was obtained about 30 minutes. Furthermore, we examined scuba cylinders as a portable source of compressed gas supply to the vortex tube. Likewise, by setting up the vortex tube to have an inlet pressure of 25 PSI and 50 L/min and -3°C at the cold air outlet, brain temperature decreased 4.5°C within 10-20 min.
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Adult Medicaid enrollees are more likely to have mental health disorders (MHDs) than privately insured patients and also have high rates of emergency department (ED) visits for ambulatory care-sensitive conditions (ACSCs). We aimed to evaluate the association of MHD and insurance type with ED admissions for ACSC in the United States. ⋯ Among all ED admissions, patients covered by Medicaid are more likely to be admitted for an ACSC when compared with those covered by private insurance, with a larger association being present among patients with MHD comorbidities.
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Letter Clinical Trial
The development and experimental application of a new thoracostomy trocar.