J Emerg Med
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Randomized Controlled Trial Clinical Trial
Use of the Trousseau dilator in cricothyrotomy.
When performing cricothyrotomy, once the initial incision has been created, the scalpel handle may be inserted into the incision and rotated, or a Trousseau dilator may be used to widen the opening. During endotracheal (ET) tube passage, the Trousseau dilator may be left in place or a tracheal hook may be inserted for tracheal stabilization. This experimental crossover trial of cricothyrotomy in a cadaver model compared: 1) scalpel handle rotation to the use of a Trousseau dilator in widening the initial incision, and 2) the use of a tracheal hook to a Trousseau dilator during ET tube passage. ⋯ We found that the average size of the largest ET tube passed was significantly greater with the use of a tracheal hook (internal diameter mean 7.0 mm, median 7.0 mm) than with a Trousseau dilator (internal diameter mean 5.7 mm, median 5.5 mm). There was no damage to local tissue and no cuff ruptures. We conclude that the scalpel handle rotation technique is equal to the use of the Trousseau dilator with regard to opening size and maximal ET tube size but that use of a tracheal hook rather than a Trousseau dilator allows for passage of a larger ET tube in a cadaver model of cricothyrotomy.
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Despite the use of protective gear, a 15-year-old hockey player died when he was struck in the chest by a puck. This is the fifth recorded hockey death related to so-called commotio cordis, that is, blunt chest injury without myocardial structural damage. ⋯ Physicians should be aware that commotio cordis represents a distinctive pathological condition, in the event of which immediate recognition, precordial thump, CPR, and defibrillation are potentially lifesaving. Appropriate medical supervision at amateur hockey games, 911 telephone access, and on-site automated external defibrillators are issues that deserve careful consideration.
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Comparative Study
How do prudent laypeople define an emergency medical condition?
To determine the public's perception as to the general definition of an emergency medical condition (EMC), and to compare opinions between the general public and healthcare workers (HCW) on which specific medical conditions require emergency department (ED) care, a survey of people at 12 supermarkets and shopping malls in Northern California was conducted over a 6-month period in 1997. Individuals over age 18 were asked in person to complete a survey sheet. It asked participants to choose one of four definitions of "emergency medical condition." In addition, people were asked to determine which of 30 chief complaints they thought needed care in the ED. ⋯ Approximately half uses a conservative federal definition, and half uses patient self-determined need as the definition. Data on which specific conditions need ED care provide additional insight on agreement between the public and HCWs on most problems. Both groups agree that many perceived minor medical complaints do not require ED care.
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The objectives of this study were to determine the optimal cutoff value (CV) and utility of a single serum beta human chorionic gonadotropin hormone (HCG) level in assessing the likelihood of ectopic pregnancy (ECP). A retrospective chart review was performed at an urban county hospital. The optimal CV was determined by comparing all available patients diagnosed with ECP and patients diagnosed with threatened abortion (TA) in the Emergency Department (ED) who subsequently delivered a baby at the same hospital. ⋯ When the test was applied to a group of 175 women who presented with pain or bleeding between 6 and 13 weeks EGA, the sensitivity and positive predictive value for an intrauterine pregnancy were 24% and 99.9 %, respectively. However, if this test was applied to all patients regardless of clinical findings, and then an ultrasound (U/S) algorithm was applied to the patients who had an HCG of less than 40K, it would predictably increase the rate of ECPs falsely identified as intrauterine pregnancies (IUPs) by 1%, regardless of the false-positive rate of the U/S algorithm itself. Given the potential morbidity and mortality of undiagnosed ectopic pregnancy, ultimately neither this test nor any other that is less than 100% specific for IUP can be recommended instead of an initial U/S evaluation for patients who present at risk for ECP.