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turing aerosols at the source of generation, had the greatest impact on reducing exposure of dental personnel to PM10 produced during dental procedures. This study also indicates that such exposure is further reduced with the addition of an ambient ACD. However, creating a negative pressure room as high as -0.25 inch wc can lead to air turbulence reducing the effectiveness of ACDs in capturing aerosols at the source. Furthermore, the presence of uncaptured droplets and spatter on the surrounding environment supports the need to complement the use of engineering controls with proper administrative controls and personal protective equipment, as recommended by governmental agencies and the scientific community for preventing the transmission of infection in health care settings.<br /><br /> With a dramatic rise in prescription opioid use, it is imperative to review postsurgical prescribing patterns given their contributions to the opioid epidemic.<br /><br /> To evaluate the impact of departmental postoperative prescribing guidelines on opioid prescriptions following elective spine surgery.<br /><br /> Patients undergoing elective cervical or lumbar spine surgery between 2017 and 2018 were identified. Procedure-specific opioid prescribing guidelines to limit postoperative prescribing following neurosurgical procedures were developed in 2017 and implemented in January 2018. Preguideline data were available from July to December 2017, and postguideline data from July to December 2018. Discharge prescriptions in morphine milliequivalents (MMEs), the proportion of patients (i) discharged with an opioid prescription, (ii) needing refills within 30 d, (iii) with guideline compliant prescriptions were compared in the 2 groups. Multivariable (MV) analyses were performed to assess the impact of guideline implementation onions for pain control.<br /><br />Provider-aimed interventions such as implementation of procedure-specific prescribing guidelines can significantly reduce postoperative opioid prescriptions following spine surgery without increasing the need for refill prescriptions for pain control.Electronic cigarettes continue to rise in popularity as a reportedly safe alternative to standard cigarette smoking. Their use has become common in our society and specifically in our young active duty population. [https://www.selleckchem.com/products/azd2014.html AZD2014 cost] This cigarette smoking alternative has come under recent scrutiny with the discovery of e-cigarette or vaping product use-associated lung injury. However, there is another potential risk associated with vaping the relative ease at which vaping devices can be modified has allowed a growing community of users to invent novel ways of delivering higher concentrations of nicotine. Here, we describe two cases of active duty patients who presented to an emergency department with clinical nicotine toxicity after using a heavily modified e-cigarette.Petrous apex cholesterol granulomas are believed to result from blockage of the normal aeration of the petrous air cells, resulting in a repetitive cycle of mucosal engorgement, hemorrhage, and granuloma formation.1 The lesion usually progressively expands causing compressive symptoms. The thick granulomatous wall envelopes various ages of breakdown products, including a cholesterol-containing fluid, which is typically hyperintense on T1 and T2 weighted magnetic resonance imaging. Drainage procedures, regardless of the route (endoscopic, endonasal, or transtemporal), with or without stenting or marsupialization, will only temporarily drain this cholesterol-containing fluid, with consequently frequent recurrences.2-5 A total exoneration of the granuloma and obliteration of the cavity with vascularized tissue will assure a more durable outcome.1 The extradural zygomatic/middle fossa approach provides a short distance to the petrous apex and is purely extradural. By sectioning the zygoma, temporal lobe retraction is avoided.6 We present a case of a 29-yr-old male who presented in the year 2000 with progression of a left petrous apex cholesterol granuloma despite 2 previous drainage and stenting procedures.  The patient consented for surgery and photo publication. Images in video at 241 © JNSPG, republished from Eisenberg et al1 with permission.<br /><br /> Many physicians consider aneurysmal wall enhancement (AWE) on high resolution-vessel wall imaging (HR-VWI) as an imaging biomarker of unstable unruptured intracranial aneurysms (UIAs).<br /><br /> To evaluate the clinical value of different AWE signal intensities (SIs) by assessing the correlation between the AWE SIs and surgical findings and rupture risk assessment tools.<br /><br /> Twenty-six patients with 34 aneurysms who underwent surgical clipping were included. The corrected AWE SI was calculated by comparing T1-weighted images with post-gadolinium enhanced T1-weighted images. The correlation of AWE with the population, hypertension, age, size of aneurysm, earlier subarachnoid hemorrhage from another aneurysm, site of aneurysm (PHASES) and earlier subarachnoid hemorrhage, location of the aneurysm, age &gt;60 years, population, size of the aneurysm, shape of the aneurysm (ELAPSS) scores was evaluated using correlation and linear regression analysis. To quantify the surgical findings, the average color value of the aneury of inflammation.<br /><br /> Hamid Karzai International Airport is a NATO military base connected to the international airport in Kabul, Afghanistan. It is one of the larger NATO installations in Afghanistan, and with its location being one of the main hubs for international transit, the base has been at the frontline since the beginning of the COVID-19 pandemic. Hamid Karzai International Airport base commanders and medical staff have been at the forefront, continually developing policies and procedures to mitigate the pandemic in a deployed setting.<br /><br /> On base, approximately 4,000 people from 58 different nations lived within 0.5 km2. Diagnosis of COVID-19 was made by the detection of nucleic acid from the SARS-CoV-2 virus in nasopharyngeal/oropharyngeal swabs using real-time polymerase chain reaction (BioFire or GeneXpert). Serological tests (detecting IgM and IgG antibodies) were used as a screening tool. Data were reported from April 1 to September 12, 2020.<br /><br /> Three thousand four hundred and sixty-six PCR tests were run in the reported period.