The American journal of emergency medicine
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Fewer than 20 % of traumatic brain injury (TBI) cases with traumatic intracranial hemorrhage (ICH) result in clinical deterioration. The Brain Injury Guideline (BIG) criteria were published in 2014 and categorize patients with TBI into three risk groups (BIG 1, 2, and 3) based on CT scan findings, neurological examination, anti-coagulant/platelet medications, and intoxication. Early data is promising, suggesting no instances of neurosurgical intervention or death in the low-risk BIG1 category within 30 days. We sought to externally validate the BIG criteria and identify patients with TBI at low risk of clinical deterioration. We hypothesized that patients meeting the BIG1 low risk criteria have less than a 1 % risk of death or neurosurgical intervention. ⋯ BIG1 criteria identified a low-risk subset of patients with TBI with ICH. However, an upper 95 % CI of 1.9 % does not exclude the risk of neurologic deterioration being <1 %. Validation of these criteria in larger cohorts is warranted.
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Observational Study
Diagnostic accuracy of artificial intelligence for identifying systolic and diastolic cardiac dysfunction in the emergency department.
Cardiac point-of-care ultrasound (POCUS) can evaluate for systolic and diastolic dysfunction to inform care in the Emergency Department (ED). However, accurate assessment can be limited by user experience. Artificial intelligence (AI) has been proposed as a model to increase the accuracy of cardiac POCUS. However, there is limited evidence of the accuracy of AI in the clinical environment. The objective of this study was to determine the diagnostic accuracy of AI for identifying systolic and diastolic dysfunction compared with expert reviewers. ⋯ When compared with expert assessment, AI had high sensitivity and specificity for diagnosing both systolic and diastolic dysfunction.
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To develop a translation between the Glasgow Come Scale and the Alert-Verbal-Pain-Unresponsive (AVPU) scale among adults with out-of-hospital emergencies. ⋯ We report an optimal crosswalk between the AVPU and GCS scales. Performance in the Verbal and Pain categories was lower than the Alert and Unresponsive categories. These findings may facilitate clinician handovers between EMS and non-EMS clinicians.
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Case Reports
Treatment of shoulder pain with ultrasound-guided interfascial plane block: A case series.
Shoulder pain is a common presentation to the Emergency Department (ED). Despite an increasing volume of ED visits for shoulder pain, achieving adequate pain control can be challenging. Ultrasound-guided nerve blocks, such as the interscalene nerve block (ISB), are effective but can cause hemidiaphragmatic paresis and motor dysfunction. The interfascial plane block (IPB) is a simple and new regional anesthesia technique that spares the diaphragm, and most upper extremity motor function. ⋯ The ultrasound-guided IPB is a simple, safe, and effective alternative approach to treating shoulder pain in the ED, especially in patients who may not tolerate ISB.
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Case Reports
Severe caffeine poisoning with mexiletine successfully treated by extracorporeal methods: A case report.
A 20-year-old woman was brought to the hospital in an ambulance after ingesting 18 g of caffeine and 3500 mg of mexiletine 80 min earlier. On arrival at the emergency department, her vital signs were as follows: blood pressure, 65/37 mmHg; heart rate, 140 beats/min; and Glasgow Coma Scale, E4V4M6. Laboratory analyses revealed hypokalemia and lactic acidosis. ⋯ In this case, the endogenous clearance of caffeine, calculated from blood concentrations, was considerably lower than estimated. If HD had not been performed, it may have taken longer to wean off the VA-ECMO because of reduced caffeine clearance in the presence of mexiletine. Notably, caffeine poisoning is more severe and prolonged when mexiletine is administered.