Publications by authors named "Alexandra Schick"

Objectives: Detecting reduced left ventricular ejection fraction (LVEF) by an emergency physician (EP) is an important skill. The subjective ultrasound assessment of LVEF by EPs correlates with comprehensive echocardiogram (CE) results. Mitral annular plane systolic excursion (MAPSE) is an ultrasound measure of vertical movement of the mitral annulus, which correlates to LVEF in the cardiology literature, but has not been studied when measured by an EP.

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Aim: This study aimed to describe the prevalence of hypoxic-ischemic brain injury (HIBI) on head CT (HCT) obtained within two hours of return of spontaneous circulation (ROSC) care in the Emergency Department following out-of-hospital cardiac arrest (OHCA) and evaluate the association between early HIBI and neurologic outcome.

Methods: Retrospective single center observational study of post-OHCA patients between 2009 and 2017. Two cohorts were analyzed: those who underwent non-contrast HCT within two hours of ROSC and all others who survived to ICU admission.

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Measurement of carotid blood flow (CBF) and corrected carotid flow time (ccFT) has been proposed as a non-invasive means of determining fluid responsiveness. We evaluated the ability of CBF and ccFT as assessed by novice sonologists to determine fluid responsiveness in intensive care unit patients. Three novice physician sonologists performed carotid ultrasounds before and after a fluid bolus and calculated changes in CBF and ccFT.

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Background: Respiratory variation in carotid artery peak systolic velocity (ΔVpeak) assessed by point-of-care ultrasound (POCUS) has been proposed as a noninvasive means to predict fluid responsiveness. We aimed to evaluate the ability of carotid ΔVpeak as assessed by novice physician sonologists to predict fluid responsiveness.

Methods: This study was conducted in 2 intensive care units.

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Objectives: Inferior vena cava collapsibility (cIVC) measured by point-of-care ultrasound (POCUS) has been proposed as a noninvasive means of assessing fluid responsiveness. We aimed to prospectively evaluate the performance of a 25% cIVC cutoff value to detect fluid responsiveness among spontaneously breathing intensive care unit (ICU) patients when assessed with POCUS by novice versus expert physician sonologists.

Methods: Prospective observational study of spontaneously breathing ICU patients.

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Background: Focused cardiac ultrasound (FOCUS) is insensitive for pulmonary embolism (PE). Theoretically, when a clot is large enough to cause vital sign abnormalities, it is more likely to show signs of right ventricular dysfunction on FOCUS, although this has not been well quantified. A rapid bedside test that could quickly and reliably exclude PE in patients with abnormal vital signs could be of high utility in emergency department (ED) patients.

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Objectives: The objective was to determine if there is a difference in procedural amnesia and adverse respiratory events (AREs) between the target sedation levels of moderate (MS) and deep (DS) procedural sedation.

Methods: This was a prospective, randomized clinical trial of consenting adult patients planning to undergo DS with propofol between March 5, 2015, and May 24, 2017. Patients were randomized to a target sedation level of MS or DS using the American Society of Anesthesiologist's definitions.

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Study Objective: Adverse events, including aspiration, occur during Emergency Department (ED) intubation, but their contemporary incidence is not well described. We sought to estimate the rate of aspiration pneumonia potentially related to emergency intubation.

Methods: We conducted a prospective observational study of adult patients who were endotracheally intubated in the ED.

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Background: Direct laryngoscopy (DL) has long been the most common approach for emergency endotracheal intubation, although the use of video laryngoscopy (VL) is becoming more widespread. Current observational data suggest that VL has higher first-pass success, although randomized trials are lacking.

Objectives: The objective was to compare first-pass success in patients undergoing emergency intubation with DL or VL using a C-MAC device.

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Objectives: The objective was to assess whether respiratory depression and supportive airway measures occurring during procedural sedation are associated with changes in peripheral tissue oxygen saturation (StO2 ).

Methods: This was a prospective observational study of adult patients undergoing procedural sedation in the emergency department (ED). Patients undergoing sedation with propofol, 1:1 propofol and ketamine, and 4:1 propofol and ketamine were included.

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