The American journal of emergency medicine
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Case Reports
The ultrasound-guided superficial cervical plexus block for anesthesia and analgesia in emergency care settings.
The ultrasound-guided superficial cervical plexus (SCP) block may be useful for providers in emergency care settings who care for patients with injuries to the ear, neck, and clavicular region, including clavicle fractures and acromioclavicular dislocations. The SCP originates from the anterior rami of the C1-C4 spinal nerves and gives rise to 4 terminal branches--greater auricular, lesser occipital, transverse cervical, and suprascapular nerves--that provide sensory innervation to the skin and superficial structures of the anterolateral neck and sections of the ear and shoulder. ⋯ We present the first case description of its successful use to manage pain for a patient with an acute clavicle fracture. This case is presented to highlight one of several potential applications of this promising new technique in the emergency department.
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Agitation has significant consequences for patients and staff. When verbal techniques fail, expert guidelines recommend the use of second-generation antipsychotics (SGAs). Perhaps out of familiarity with haloperidol and benzodiazepines, emergency department (ED) clinicians often pair SGAs with benzodiazepines as well. Use of SGAs such as olanzapine in alcohol-intoxicated (ETOH+) patients or with benzodiazepines is not well studied and may be associated with vital sign abnormalities. ⋯ Oral olanzapine was not associated with significant vital sign changes in ED patients. Intramuscular olanzapine also was not associated with vital sign changes in ETOH- patients. In ETOH+ patients, i.m. olanzapine was associated with significant oxygen desaturations. In ETOH+ ED patients, oral olanzapine (with or without benzodiazepines) or haloperidol may be safer choices. ETOH+ patients may have differential effects with the use of i.m. SGAs such as olanzapine and should be studied separately in drug trials.
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We sought to assess the anatomical distribution of traumatic pneumothoraces (PTXs) on chest computed tomography (CT) to develop an optimized protocol for PTX screening with ultrasound in the emergency department (ED). ⋯ Our results indicate that 80.4% of right- and 83.7% of left-sided traumatic PTXs would be identified by scanning regions 9, 11, and 12. These findings suggest that a standardized protocol for PTX screening with ultrasound should include these regions.
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Ketamine is widely used for procedural sedation, but there is limited knowledge on whether ketamine use is associated with elevated intraocular pressure (IOP). ⋯ At dosages of 4 mg/kg or less, there are not clinically meaningful associations of ketamine with elevation of IOP.
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The aim of this study was to evaluate the additional predictive value of serum potassium (SK) to Thrombolysis In Myocardial Infarction (TIMI) risk score for malignant ventricular arrhythmias (MVA) in patients within 24 hours of acute myocardial infarction (AMI). ⋯ Serum potassium on admission to the emergency department may be used as a valuable predictor and could add predictive information to some extent to TIMI risk score for MVA attack during 24-hour post-AMI.