Search

Objective: This study aimed to evaluate the quality of completion among both drivers and medical examiners in filling out Commercial Driver's (CD) Medical Examination Report Forms., Methods: This was a cross-sectional retrospective study of abstracted data from the year 2019. CD Medical Examination Report Forms, collected from a single nationally-based employer and initially reviewed by corporate medical directors, were evaluated by the study team for completeness of documentation provided by both drivers and medical examiners (MEs). Relevant findings included unanswered questions, inconsistency between responses, and lack of necessary elaboration for positive responses., Results: Among 1603 examinations, MEs completed the Medical Examination Report Form incompletely or incorrectly in 30% of examinations (n = 484). Drivers inconsistently filled out their health history with elaborations 38.7% of the time. Most commonly, they failed to elaborate on positive health history responses in 28.7% of examinations, but other types of errors were noted as well., Conclusions: A considerable proportion of drivers or examiners (n = 890, 55%) failed to adequately or correctly complete CD Medical Examination Report forms., (© 2024 The Author(s). American Journal of Industrial Medicine published by Wiley Periodicals LLC.)

Objective: To assess COVID-19 vaccination prevalence and explore whether health beliefs were associated with vaccination among firefighters., Methods: A cross-sectional online survey was distributed to Minnesota firefighters in March - April 2022. Survey questions included demographics, vaccination status, and beliefs about COVID-19 and vaccines., Results: Of the survey respondents (N = 974, 91% male, 89% White), 76% were fully vaccinated and 53% were boosted. Firefighters were less likely to be vaccinated if they reported more perceived barriers (OR = 0.42, p < .001), greater decision-making ease (OR = 0.42, p < .001), and greater autonomy (OR = 0.65, p = .04). Greater perceived benefits (OR = 2.63, p < .001) and social norms (OR = 2.10, p < .001) were associated with a greater likelihood of being vaccinated. Similar results were seen predicting booster status., Conclusions: Firefighters had similar vaccination rates as the general population, despite high exposure risks. Health beliefs are strongly related to vaccination status., Competing Interests: Conflicts of interest: None declared, (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American College of Occupational and Environmental Medicine.)

Competing Interests: Conflicts of Interest: Andre Montoya-Barthelemy: None Declared

Problem : Misleading health information is detrimental to public health. Even physicians can be misled by biased health information; however, medical students and physicians are not taught some of the most effective techniques for identifying bias and misinformation online. Intervention : Using the stages of Kolb's experiential learning cycle as a framework, we aimed to teach 117 third-year students at a United States medical school to apply a fact-checking technique for identifying bias and misinformation called "lateral reading" through a 50-minute learning cycle in a 90-minute class. Each student's concrete experience was to independently read a biased article and rate its credibility, demonstrating their baseline skills at identifying bias. Students were given structured opportunities for reflective observation through individual and large group discussion. Students were guided through abstract conceptualization to determine techniques and frameworks utilized by fact checkers, specifically "lateral reading"-utilizing the internet to research the background of the author, organization, and citations using independent sources before exploring the article itself in depth. Students' active experimentation included re-rating the credibility of the same article and discussing further implications with classmates and instructors. Context : In January 2020, sessions were offered to third-year medical students during their required, longitudinal transition-to-residency course. Impact : Compared to baseline, when using lateral reading, students deemed the article less credible. Students' active experimentation changed whether they identified the organization and sources behind the article as credible. Notably, 86% (53/62) of students who viewed the organization positively pre-intervention did not describe the organization positively post intervention. Similarly, 66% (36/55) of students who cited the sources as positive pre-exercise changed their assessment after the exercise. While three students mentioned the author negatively pre-intervention, none of the 21 students who described the author in a negative fashion post-intervention described the author negatively pre-intervention. Positively describing the organization, author, or sources pre-intervention correlated with differences in credibility rating after the intervention. These findings indicate that teaching students to read laterally may increase their ability to detect bias in online medical information. Lessons Learned : Further research is needed to determine whether students who learned lateral reading via experiential learning will apply this skill in their education and career. Additionally, research should assess whether this skill helps future physicians counter bias and misinformation in ways that improve health.

Objective: Natural language processing (NLP) can generate diagnoses codes from imaging reports. Meanwhile, the International Classification of Diseases (ICD-10) codes are the United States' standard for billing/coding, which enable tracking disease burden and outcomes. This cross-sectional study aimed to test feasibility of an NLP algorithm's performance and comparison to radiologists' and physicians' manual coding., Methods: Three neuroradiologists and one non-radiologist physician reviewers manually coded a randomly-selected pool of 200 craniospinal CT and MRI reports from a pool of >10,000. The NLP algorithm ( Radnosis, VEEV, Inc., Minneapolis, MN ) subdivided each report's Impression into "phrases", with multiple ICD-10 matches for each phrase. Only viewing the Impression, the physician reviewers selected the single best ICD-10 code for each phrase. Codes selected by the physicians and algorithm were compared for agreement., Results: The algorithm extracted the reports' Impressions into 645 phrases, each having ranked ICD-10 matches. Regarding the reviewers' selected codes, pairwise agreement was unreliable ( Krippendorff α  =  0.39-0.63 ). Using unanimous reviewer agreement as "ground truth", the algorithm's sensitivity/specificity/F2 for top 5 codes was 0.88/0.80/0.83 , and for the single best code was 0.67/0.82/0.67. The engine tabulated "pertinent negatives" as negative codes for stated findings (e.g. "no intracranial hemorrhage"). The engine's matching was more specific for shorter than full-length ICD-10 codes ( p  =  0.00582x10 -3 )., Conclusions: Manual coding by physician reviewers has significant variability and is time-consuming, while the NLP algorithm's top 5 diagnosis codes are relatively accurate. This preliminary work demonstrates the feasibility and potential for generating codes with reliability and consistency. Future works may include correlating diagnosis codes with clinical encounter codes to evaluate imaging's impact on, and relevance to care., Competing Interests: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:Alexander M. McKinney reports a relationship with VEEV, Inc. that includes: board membership and equity or stocks. Zeke J. McKinney reports a relationship with VEEV, Inc. that includes: board membership and equity or stocks. Kevin Campbell reports a relationship with VEEV, Inc. that includes: board membership and equity or stocks. Alexander McKinney has patent #US 17/173,123 issued to Assignee., (© 2024 The Authors.)

Abstract: Occupational and environmental medicine (OEM) is an ACGME-accredited preventive medicine specialty focused on work as a social determinant of health and population health. OEM providers recognize and mitigate workplace and environmental hazards, treat resultant injuries and illnesses, and promote the health, wellness and resiliency of workers and communities. Multidisciplinary residency training in clinical medicine, epidemiology, public and population health, toxicology, exposure and risk assessment, and emergency preparedness equips them with the skill set needed for leadership roles in diverse settings. These include clinical practice, academia, corporate settings, and governmental agencies. Despite robust job opportunities, a shortage of formally trained OEM physicians remains and is expected to worsen given a declining number of training programs. We examine root causes of the system-level issues impacting the supply of OEM physicians and potential solutions., Competing Interests: ACOEM requires all substantive contributors to its documents to disclose any potential competing interests, which are carefully considered. ACOEM emphasizes that the judgmentsexpressed herein represent the best available evidence at the time of publication and shall be considered the position of ACOEM and not the individual opinions of contributing authors.The authors declare no conflicts of interest., (Copyright © 2022 American College of Occupational and Environmental Medicine.)

Background: A team approach is one of the most effective ways to lower blood pressure (BP) in uncontrolled hypertension, but different models for organizing team-based care have not been compared directly., Methods: A pragmatic, cluster-randomized trial compared 2 interventions in adult patients with moderately severe hypertension (BP≥150/95 mm Hg): (1) clinic-based care using best practices and face-to-face visits with physicians and medical assistants; and (2) telehealth care using best practices and adding home BP telemonitoring with home-based care coordinated by a clinical pharmacist or nurse practitioner. The primary outcome was change in systolic BP over 12 months. Secondary outcomes were change in patient-reported outcomes over 6 months., Results: Participants (N=3071 in 21 primary care clinics) were on average 60 years old, 47% male, and 19% Black. Protocol-specified follow-up within 6 weeks was 32% in clinic-based care and 27% in telehealth care. BP decreased significantly during 12 months of follow-up in both groups, from 157/92 to 139/82 mm Hg in clinic-based care patients (adjusted mean difference -18/-10 mm Hg) and 157/91 to 139/81 mm Hg in telehealth care patients (adjusted mean difference -19/-10 mm Hg), with no significant difference in systolic BP change between groups (-0.8 mm Hg [95% CI, -2.84 to 1.32]). Telehealth care patients were significantly more likely than clinic-based care patients to report frequent home BP measurement, rate their BP care highly, and report that BP care visits were convenient., Conclusions: Telehealth care that includes extended team care is an effective and safe alternative to clinic-based care for improving patient-centered care for hypertension., Registration: URL: https://www., Clinicaltrials: gov; Unique identifier: NCT02996565.

Background: Obesity prevalence among oil and gas industry workers over the past decade globally has been on the increase, adversely affecting workers' well-being and productivity. Therefore, necessitates the increased need for both occupational, and public health policymakers to take action. Data on obesity prevalence rates among workers in the oil and gas industry of the Niger-Delta region needed to drive public and occupational health policies regarding obesity is scarce. Therefore, this study aimed to determine the prevalence of obesity and its risk factors among oil and gas industry workers in the Niger Delta Region of Nigeria., Methodology: A cross-sectional study of 280 oil and gas industry workers in the Niger Delta region of Nigeria aged 29 -to 61 years, from November - to - December 2017 was done. A structured survey data of Body Mass Index (BMI) measurements and socio-demographics was collected. Statistical analysis with Chi-Square and Multinomial Logistic Regression tests was used., Results: Results indicated that the Obesity prevalence rate among the oil and gas industry workers of the Niger Delta region was 49.6% (p=0.002). Obesity was significantly associated with a family history of cardiovascular diseases (OR=2.761, p=0.001, 95%CI=1.491-5.112)., Conclusion: The Obesity prevalence of 49.6% (p=0.002) among oil and gas industry workers in the Niger-Delta region, is statistically significantly high. Therefore, concretive preventive measures are needed to reduce obesity prevalence among workers., (Copyright © 2022 Nigerian Medical Association.)

Problem: The World Health Organization calls on all with quality medical information to share it with the public and combat health misinformation; however, U.S. medical schools do not currently teach students effective communication with lay audiences about health. Most physicians have inadequate training in mass communication strategies., Approach: In August 2018, a novel 90-minute class at the University of Minnesota Medical School introduced fourth-year medical students to basic skills for communicating with lay audiences through mass media. Instructors were physicians with experience interacting with the general public via radio, op-ed articles, social media, print media, television, and community and legislative advocacy. After a 20-minute lecture and sharing of instructors' personal experiences, students completed two 30-minute small-group activities. They identified communications objectives and talking points for a health topic, drafting these as Tweets or an op-ed article outline, then presented talking points in a mock press conference with their peers, practicing skills just learned. Pre- and postsurveys documented students' previous engagement and comfort with future engagement with mass media messaging., Outcomes: Over 1 week, 142 students participated in 6 separate classes, and 127 completed both pre- and postsurveys. Before the course, only 6% (7/127) of students had comfortably engaged with social media and 14% (18/127) had engaged with traditional media in their professional roles. After the course, students self-reported an increase in their comfort, perceived ability, and likelihood of using specific communications skills to advocate for their patients (all P < .001)., Next Steps: The course will be expanded into a 5-session thread for third- and fourth-year medical students spread over 2 years. This thread will include meeting physicians who engage with lay audiences, identifying best practices for mass health communication, identifying bias and misinformation, "dos and don'ts" of social media, and communication skills for legislative advocacy., (Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the Association of American Medical Colleges.)

Background: Although racial and ethnic identities are associated with a multitude of disparate medical outcomes, surveillance of these subpopulations in the occupational clinic setting could benefit enormously from a more detailed and nuanced recognition of racial and ethnic identity., Methods: The research group designed a brief questionnaire to capture several dimensions of this identity and collected data from patients seen for work-related conditions in four occupational medicine clinics from May 2019 through March 2020. Responses were used to calculate the sensitivity and specificity of extant racial/ethnic identity data within our electronic health records system, and were compared to participants' self-reported industry and occupation, coded according to North American Industry Classification System and Standard Occupational Classification System listings., Results: Our questionnaire permitted collection of data that defined our patients' specific racial/ethnic identity with far greater detail, identified patients with multiple ethnic identities, and elicited their preferred language. Response rate was excellent (94.2%, n = 773). Non-White participants frequently selected a racial/ethnic subcategory (78.1%-92.2%). Using our race/ethnicity data as a referent, the electronic health record (EHR) had a high specificity (>87.1%), widely variable sensitivity (11.8%-82.2%), and poorer response rates (75.1% for race, 82.5% for ethnicity, as compared to 93.8% with our questionnaire). Additional analyses revealed some industries and occupations disproportionately populated by patients of particular racial/ethnic identities., Conclusions: Our project demonstrates the usefulness of a questionnaire which more effectively identifies racial/ethnic subpopulations in an occupational medicine clinic, permitting far more detailed characterization of their occupations, industries, and diagnoses., (© 2022 The Authors. American Journal of Industrial Medicine Published by Wiley Periodicals LLC.)

Competing Interests: The authors have no funding or conflicts of interest to declare.

Objective: To address which body composition (BC) measures best correlate with cardiorespiratory fitness (CRF) in firefighters and develop a model for accurate CRF estimation compared with traditional methods., Methods: Career firefighters had body mass index (BMI) and waist circumference (WC) measured in addition to body fat percentage (FM%) by dual-energy x-ray absorptiometry (DXA). CRF as maximum oxygen uptake (VO2max) was estimated by rowing machine and measured by indirect calorimetry in a treadmill exercise test., Results: Fifty two firefighters participated (92.3% men). Univariate correlations with BMI were best with WC. Univariate correlations with VO2max were best with FM%. Obesity classifications by BC measures agreed weakly at best. Multivariate analysis of several variables yielded an improved VO2max estimate (R2 = 0.70)., Conclusions: Fire departments may benefit from more sophisticated measures of BC and CRF to evaluate firefighter fitness., Competing Interests: Conflict of Interest: Drs. McKinney and Bovard have performed medical consulting in an unpaid capacity for the St. Paul Fire Department and other fire service institutions/organizations in Minnesota. While this has aided in terms of recruitment in this study, these relationships have not impacted the study design or data analysis of this study., (Copyright © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American College of Occupational and Environmental Medicine.)

Background: Minnesota has an ethnically diverse labor force, with the largest number of refugees per capita in the United States. In recent years, Minnesota has been and continues to be a major site for immigrant and refugee resettlement in the United States, with a large population of both immigrant and native born Hmong, Hispanic, and East Africans. This study seeks to evaluate the injury risk among the evolving minority workforce in the Minnesota Twin Cities region., Methods: A retrospective cohort study identifying work-related injuries following pre-employment examinations was performed using electronic health records from a large multi-clinic occupational medicine practice. Preplacement examinations and subsequent work-related injuries were pulled from the electronic health record using representative ICD-10 codes for surveillance examinations and injuries. This study included patient records collected over a 2-year period from January 1, 2015, through December, 2016. The patients in this cohort worked in a wide-array of occupations including production, assembly, construction, law enforcement, among others., Results: Hispanic minority workers were twice as likely to be injured at work compared with White workers. Hispanics were 2.89 times more likely to develop back injuries compared with non-Hispanic workers, and 1.86 times more likely to develop upper extremity injuries involving the hand, wrist, or elbow., Conclusion: Clinical practice data shows that Hispanic workers are at increased risk for work-related injuries in Minnesota. They were especially susceptible to back and upper extremity injuries. Lower injury rates in non-Hispanic minority workers, may be the result of injury underreporting and require further investigation., (© 2019 The Authors. American Journal of Industrial Medicine Published by Wiley Periodicals, Inc.)

Minnesota's immunization information system excels at population health surveillance.

Objectives: To describe (a) a conceptual approach, (b) measurement tools and data collection processes, (c) characteristics of an integrated feedback report and action plan, and (d) experiences of three companies with an integrated measurement approach to worker safety and health., Methods: Three companies implemented measurement tools designed to create an integrated view of health protection and promotion based on organizational- and individual-level assessments. Feedback and recommended actions were presented following assessments at baseline and 1-year follow-up. Measurement processes included group dialogue sessions, walk-through, online surveys, and focus groups., Results: The approach and measurement tools generated actionable recommendations and documented changes in the physical (eg, safety hazards) and psychosocial (eg, health and safety culture) work environment between baseline and 1-year follow-up., Conclusions: The measurement tools studied were feasible, acceptable, and meaningful to companies in the SafeWell study.

Objective: We discuss the implementation and outcomes of a diabetic ketoacidosis (DKA) critical care pathway (CCP) at a 462-bed teaching hospital., Methods: A multi-disciplinary team implemented a DKA CCP that was translated into 3 computerized physician order entry (CPOE) order sets corresponding to the phases of DKA care. Historical and postintervention data were obtained via automated queries of the electronic medical record (EMR) and further analyzed by manual chart review., Results: Average length of stay decreased from 104.3 to 72.9 hours (P = .0003) after implementation of a DKA CCP., Conclusion: Outcome data supports the use of a DKA CCP at our institution., Abbreviations: DKA = diabetic ketoacidosis CCP = critical care pathway EMR = electronic medical record CPOE = computerized physician order entry ICD-9 = International Classification of Diseases, ninth revision LoS = length of stay SQL = standard query language.

Background and Purpose: Posterior reversible encephalopathy syndrome is a clinicoradiologic syndrome. Literature regarding associated factors and the prognostic significance of contrast enhancement in posterior reversible encephalopathy syndrome is sparse. This study set out to evaluate an association between the presence of enhancement in posterior reversible encephalopathy syndrome and various clinical factors in a large series of patients with this syndrome., Materials and Methods: From an MR imaging report search that yielded 176 patients with clinically confirmed posterior reversible encephalopathy syndrome between 1997 and 2014, we identified 135 patients who had received gadolinium-based contrast. The presenting symptoms, etiology, clinical follow-up, and maximum systolic and diastolic blood pressures within 1 day of MR imaging were recorded. MRIs were reviewed for parenchymal hemorrhage, MR imaging severity, and the presence and pattern of contrast enhancement. Statistical analyses evaluated a correlation between any clinical features and the presence or pattern of enhancement., Results: Of 135 included patients (67.4% females; age range, 7-82 years), 59 (43.7%) had contrast enhancement on T1-weighted MR imaging, the most common pattern being leptomeningeal (n = 24, 17.8%) or leptomeningeal plus cortical (n = 21, 15.6%). Clinical outcomes were available in 96 patients. No significant association was found between the presence or pattern of enhancement and any of the variables, including sex, age, symptom, MR imaging severity, blood pressure, or outcome (all P > .05 after Bonferroni correction)., Conclusions: The presence or pattern of enhancement in posterior reversible encephalopathy syndrome is not associated with any of the tested variables. However, an association was found between MR imaging severity and clinical outcome., (© 2016 by American Journal of Neuroradiology.)

Background: The computerized order for red blood cell (RBC) transfusion within our electronic health record was redesigned with integrated clinical decision support (CDS) to reinforce our restrictive transfusion policy. These changes encouraged 1-unit (1U) RBC orders, clarified hemoglobin (Hb) transfusion triggers, and discouraged unnecessary orders. This study assessed whether these changes resulted in durable effects on provider practices., Study Design and Methods: The study compared three 1-year subperiods from August 2011 to August 2014, with each year corresponding to a historical control period, preintervention and postintervention years. This study analyzed ratios of 1U versus 2-unit (2U) orders and the absolute rate of RBC orders, units charged, Hb transfusion triggers, repeat transfusion orders, and selected clinical indications both institution-wide and across several subpopulations., Results: Our institution-wide ratio of 1U versus 2U orders increased from 0.50 to 1.20 (p < 0.0001) in the pre- to postintervention subperiods, respectively. The number of units charged per day decreased from 15.68 to 13.53 (p < 0.001), while rates of initial and repeat orders remained stable. Proportion of clinical indications used and mean Hb triggers demonstrated generally positive results. The changes observed between the pre- and postintervention years were far greater than changes between historical control versus preintervention years, reinforcing attribution of results to computerized physician order entry changes., Conclusion: Use of computerized orders and CDS encouraged a restrictive transfusion policy, which was highly successful in changing provider practices. We also succeeded in decreasing mean Hb triggers and overall utilization of RBCs. These findings persisted across many subpopulations., (© 2015 AABB.)

Background: We assessed the utilization rationale behind provider ordering of cardiac troponin I (cTnI) testing for the diagnosis of myocardial infarction after implementation of a hospital-wide serial order protocol., Methods: During 2 months in 2013, any request for additional cTnI testing within 30 days of the initial serial cTnI order prompted an electronic health record best practice alert (BPA), which included clinical decision support that could be bypassed by giving a clinical indication. cTnI orders were not limited (timing, number), and upon BPA, trigger data was collected for clinical indications and actions, patient stay (duration, location), International Classification of Diseases, Revision 9 diagnosis, cTnI orders, and timing of cTnI measurements., Results: The BPA was triggered 1477 times by 423 providers who cared for 702 patients. There were a mean of 3.6 cTnI results per patient, 2.1 BPAs per patient, and 1.2 visits per patient. Providers (42% of whom were residents) acknowledged and overrode the BPA 97% of the time. In response to the BPA, 65% of providers selected a prepared rationale: 64% acute coronary syndrome/ST-elevation myocardial infarction/non-ST-elevation myocardial infarction; 30% demand ischemia; and 6% non-ACS myocardial necrosis. Of the remaining 35% of providers, 71% listed no rationale for their additional cTnI orders. Of patients with a BPA, 93% had non-ACS-related primary International Classification of Diseases, Revision 9 diagnosis, and 58% of the time, patients' cTnI results never increased during their stay. In 53% of cases, BPAs were generated by a request for an additional cTnI series when <2 results were available., Conclusions: Providers largely ignored the BPA that warned of potential overutilization of cTnI testing independent of diagnosis, including ACS., (© 2014 American Association for Clinical Chemistry.)

Objective: To evaluate the clinical utility of nonenhanced CT (NECT)-based screening criteria and CTA in detection of blunt vertebral artery injury (BVAI) in trauma patients with C1 and/or C2 fractures., Methods: We retrospectively reviewed the clinical records of all blunt trauma patients with C1 and/or C2 fractures between 8/2006 and 9/2011. Cervical CTA was prompted by cervical fractures involving/adjacent to a transverse foramen, and/or subluxation on NECT. Two neuroradiologists independently reviewed the CTA studies, and graded the BVAI., Results: 210 patients were included; of these, 124 underwent CTA (21/124 with digital subtraction angiography, DSA), and 2 underwent DSA only. Overall, 30/126 suffered BVAI. Among 21 patients who underwent both CTA and DSA, there was 1 false negative and 1 false positive (both grade 1). There was strong interobserver agreement regarding CTA-based BVAI detection (kappa=0.93, p<0.001) and grading (kappa=0.90, p<0001). Only 3/30 BVAI patients suffered a posterior circulation stroke; none of the patients who had a negative CTA or were not selected for CTA, based on NECT screening criteria, suffered symptomatic stroke. While C1/C2 comminuted fracture was more common in patients with high grade BVAI (p=0.039), simultaneous C3-C7 comminuted fracture increased the overall BVAI risk (p=0.011)., Conclusion: CTA reliably detects symptomatic BVAI in patients with upper cervical fractures. Utilization of NECT-based screening criteria such as transverse foraminal involvement or subluxation may be adequate in deciding whether to perform CTA, as no patients who were not selected for CTA suffered a symptomatic stroke. However, CTA may miss lower grade, asymptomatic BVAI., (Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.)

Objective: Posterior reversible encephalopathy syndrome (PRES) is classically characterized as symmetric parietooccipital edema but may occur in other distributions with varying imaging appearances. This study determines the incidence of atypical and typical regions of involvement and unusual imaging manifestations., Materials and Methods: Seventy-six patients were eventually included as having confirmed PRES from 111 initially suspected cases, per imaging and clinical follow-up. Two neuroradiologists retrospectively reviewed each MR image. Standard sequences were unenhanced FLAIR and T1- and T2-weighted images in all patients, with diffusion-weighted imaging (n = 75) and contrast-enhanced T1-weighted imaging (n = 69) in most. The regions involved were recorded on the basis of FLAIR findings, and the presence of atypical imaging findings (contrast enhancement, restricted diffusion, hemorrhage) was correlated with the severity (extent) of hyperintensity or mass effect on FLAIR., Results: The incidence of regions of involvement was parietooccipital, 98.7%; posterior frontal, 78.9%; temporal, 68.4%; thalamus, 30.3%; cerebellum, 34.2%; brainstem, 18.4%; and basal ganglia, 11.8%. The incidence of less common manifestations was enhancement, 37.7%; restricted diffusion, 17.3%; hemorrhage, 17.1%; and a newly described unilateral variant, 2.6%. Poor correlation was found between edema severity and enhancement (r = 0.072), restricted diffusion (r = 0.271), hemorrhage (r = 0.267), blood pressure (systolic, r = 0.13; diastolic, r = 0.02). Potentially new PRES causes included contrast-related anaphylaxis and alcohol withdrawal., Conclusion: This large series of PRES cases shows that atypical distributions and imaging manifestations of PRES have a higher incidence than commonly perceived, and atypical manifestations do not correlate well with the edema severity.

Symptoms of ipsilateral carotid artery compression secondary to an elongated styloid process or calcified stylohyoid ligament may be seen in Eagle syndrome. The patient will typically experience cervicofacial pain due to stimulation of the arterial nervous plexus. In addition, symptoms directly attributable to compression of the carotid artery may be seen, including visual symptoms and syncope. We report here the case of a patient who developed symptoms consistent with left hemispheric ischemia within 15 seconds of turning his head to the left. These symptoms were completely reversible on returning the head to the neutral position. No long-term sequelae were detected clinically or radiographically.