Publications by authors named "Walter A Schrading"
Article Synopsis
- * A case-control study involving 3,647 healthcare personnel showed that bivalent vaccine effectiveness (VE) was about 34.1%, with the highest effectiveness (54.8%) observed shortly after administration, declining as time passed.
- * The study highlights that while bivalent doses initially provide substantial protection against COVID-19, their effectiveness significantly wanes after two months, suggesting the need for ongoing monitoring and potential updates to vaccination strategies.
Article Synopsis
- Protection against COVID-19 is crucial for healthcare workers, especially as vaccine effectiveness has decreased with the rise of the Omicron variant.
- A study evaluated the effectiveness of a monovalent mRNA booster dose from October 2021 to June 2022, finding that its effectiveness dropped significantly from 86% during Delta prevalence to 65% during Omicron prevalence.
- The results indicated that while a booster dose provides strong protection initially, its effectiveness wanes over time, dropping to 32% at least 120 days after vaccination, highlighting the importance of staying current with COVID-19 vaccinations.
Article Synopsis
- Emergency department health care personnel face a risk of SARS-CoV-2 infection, and this study aimed to assess the infection risk associated with providing patient care, evaluate PPE usage, and identify modifiable risk factors.
- A study was conducted involving 1,673 ED staff across 20 centers over 20 weeks in 2020, monitoring COVID-19 infection rates and related exposure factors, revealing that 4.5% of participants contracted the virus, with nurses showing a marginally higher risk.
- Results indicated PPE adherence was high, but lapses occurred frequently; significant infection risk factors included household and community exposure rather than direct patient care activities like intubation.
Article Synopsis
- The study examined the effectiveness of mRNA vaccines (Pfizer-BioNTech and Moderna) against COVID-19 among U.S. health care personnel who were prioritized for early vaccination.
- It utilized a test-negative case-control design, comparing vaccinated individuals with positive SARS-CoV-2 tests (cases) to those with negative tests (controls) while adjusting for various demographics and health factors.
- Results showed that partial vaccination had effectiveness rates of 77.6% for Pfizer and 88.9% for Moderna, while complete vaccination led to 88.8% and 96.3% effectiveness, respectively, with some variations noted in specific demographic subgroups and over time.
Article Synopsis
- Health care personnel (HCP) were prioritized for COVID-19 vaccination to protect them from SARS-CoV-2 exposure and ensure ongoing health services during the pandemic.
- Early distributions of Pfizer-BioNTech and Moderna vaccines allowed for real-world effectiveness assessments among HCP at 33 U.S. sites.
- Interim analyses showed a vaccine effectiveness of 82% after one dose and 94% after two doses, confirming their strong protection against symptomatic illness comparable to clinical trial results.
Objective: To determine the correlation between 3 lightweight portable pulse oximeter devices compared to a standard wall mount pulse oximetry device.
Methods: We performed a single-center, prospective, observational study of 4 pulse oximetry devices, 3 of which are commercially available to the public. A convenience sample of 200 emergency department (ED) patients with chief complaints of cardiopulmonary origin or a peripheral capillary oxygen saturation ≤ 94 percent were enrolled.
Objectives: To determine if a correlation exists between 3 iphone pulse ox applications' measurements and the standard pulse oximetry (SpO2) and whether these applications can accurately determine hypoxia.
Methods: Three applications reportedly measuring SpO2 were downloaded onto an iPhone 5s. Two of these applications used the onboard light and camera lens "Pulse Oximeter" (Pox) and "Heart Rate and Pulse Oximeter" (Ox) and one used an external device that plugged into the iphone (iOx).
Wilderness medicine training has become increasingly popular among medical professionals with numerous educational opportunities nationwide. Curricula for fellowship programs and for medical student education have previously been developed and published, but a specific curriculum for wilderness medicine education during emergency medicine (EM) residency has not. The objective of this study is to create a longitudinal wilderness medicine curriculum that can be incorporated into an EM residency program.
View Article and Find Full Text PDFObjectives: Adequate vocal cord visualization via laryngoscopy is a key component of successful endotracheal intubation. Several tools exist to facilitate laryngoscopy in difficult airways. We compared one such device, the Rusch "ViewMax" (Rusch, Duluth, Ga), to a standard Macintosh laryngoscope blade (Heine USA Ltd, Dover, NH) using human cadaver models.
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