Browsing by Author "Kennedy, Sarah K."

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    Artificial Intelligence-Augmented Pediatric Lung POCUS: A Pilot Study of Novice Learners
    (Wiley, 2022) Nti, Benjamin; Lehmann, Amalia S.; Haddad, Aida; Kennedy, Sarah K.; Russell, Frances M.; Pediatrics, School of Medicine
    Objective: Respiratory symptoms are among the most common chief complaints of pediatric patients in the emergency department (ED). Point-of-care ultrasound (POCUS) outperforms conventional chest X-ray and is user-dependent, which can be challenging to novice ultrasound (US) users. We introduce a novel concept using artificial intelligence (AI)-enhanced pleural sweep to generate complete panoramic views of the lungs, and then assess its accuracy among novice learners (NLs) to identify pneumonia. Methods: Previously healthy 0- to 17-year-old patients presenting to a pediatric ED with cardiopulmonary chief complaint were recruited. NLs received a 1-hour training on traditional lung POCUS and the AI-assisted software. Two POCUS-trained experts interpreted the images, which served as the criterion standard. Both expert and learner groups were blinded to each other's interpretation, patient data, and outcomes. Kappa was used to determine agreement between POCUS expert interpretations. Results: Seven NLs, with limited to no prior POCUS experience, completed examinations on 32 patients. The average patient age was 5.53 years (±1.07). The median scan time of 7 minutes (minimum-maximum 3-43; interquartile 8). Three (8.8%) patients were diagnosed with pneumonia by criterion standard. Sensitivity, specificity, and accuracy for NLs AI-augmented interpretation were 66.7% (confidence interval [CI] 9.4-99.1%), 96.5% (CI 82.2-99.9%), and 93.7% (CI 79.1-99.2%). The average image quality rating was 2.94 (±0.16) out of 5 across all lung fields. Interrater reliability between expert sonographers was high with a kappa coefficient of 0.8. Conclusion: This study shows that AI-augmented lung US for diagnosing pneumonia has the potential to increase accuracy and efficiency.
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    Design and implementation of a basic and global point of care ultrasound (POCUS) certification curriculum for emergency medicine faculty
    (Springer, 2022-02-19) Russell, Frances M.; Kennedy, Sarah K.; Rood, Loren K.; Nti, Benjamin; Herbert, Audrey; Rutz, Matt A.; Palmer, Megan; Ferre, Robinson M.; Emergency Medicine, School of Medicine
    Point of care ultrasound (POCUS) use in the emergency department is associated with improved patient outcomes and increased patient satisfaction. When used for procedural guidance, it has been shown to increase first pass success and decrease complications. As of 2012, ultrasound has been identified as a core skill required for graduating emergency medicine (EM) residents. Despite this, only a minority of EM faculty who trained prior to 2008 are credentialed in POCUS. Half of all EM training programs in the United States have less than 50% of their faculty credentialed to perform and teach POCUS to learners. As the use of POCUS continues to grow in medicine, it is especially important to have a pathway for faculty to attain competence and become credentialed in POCUS. The goal of this paper was to outline an implementation process of a curriculum designed to credential EM faculty in POCUS.
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    Is Low Health Literacy Associated with Increased Emergency Department Utilization and Recidivism?
    (Wiley Online Library, 2014-10) Griffey, Richard T.; Kennedy, Sarah K.; McGownan, Lucy; Kaphingst, Kimberly A.; Department of Emergency Medicine, IU School of Medicine
    OBJECTIVES: The objective was to determine whether patients with low health literacy have higher emergency department (ED) utilization and higher ED recidivism than patients with adequate health literacy. METHODS: The study was conducted at an urban academic ED with more than 95,000 annual visits that is part of a 13-hospital health system, using electronic records that are captured in a central data repository. As part of a larger, cross-sectional, convenience sample study, health literacy testing was performed using the short test of functional health literacy in adults (S-TOFHLA) and standard test thresholds identifying those with inadequate, marginal, and adequate health literacy. The authors collected patients' demographic and clinical data, including items known to affect recidivism. This was a structured electronic record review directed at determining 1) the median number of total ED visits in this health system within a 2-year period and 2) the proportion of patients with each level of health literacy who had return visits within 3, 7, and 14 days of index visits. Descriptive data for demographics and ED returns are reported, stratified by health literacy level. The Mantel-Haenszel chi-square was used to test whether there is an association between health literacy and ED recidivism. A negative binomial multivariable model was performed to examine whether health literacy affects ED use, including variables significant at the 0.1 alpha level on bivariate analysis and retaining those significant at an alpha of 0.05 in the final model. RESULTS: Among 431 patients evaluated, 13.2% had inadequate, 10% had marginal, and 76.3% had adequate health literacy as identified by S-TOFHLA. Patients with inadequate health literacy had higher ED utilization compared to those with adequate health literacy (p = 0.03). Variables retained in the final model included S-TOFHLA score, number of medications, having a personal doctor, being a property owner, race, insurance, age, and simple comorbidity score. During the study period, 118 unique patients each made at least one return ED visit within a 14-day period. The proportion of patients with inadequate health literacy making at least one return visit was higher than that of patients with adequate health literacy at 14 days, but was not significantly higher within 3 or 7 days. CONCLUSIONS: In this single-center study, higher utilization of the ED by patients with inadequate health literacy when compared to those with adequate health literacy was observed. Patients with inadequate health literacy made a higher number of return visits at 14 days but not at 3 or 7 days.
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    Painless loss of vision: rapid diagnosis of a central retinal artery occlusion utilizing point-of-care ultrasound
    (Oxford University Press, 2021-06-18) Taylor, Gregory M.; Evans, Daniel; Doggette, Robert P.; Wallace, Ryan C.; Flack, Andrew T.; Kennedy, Sarah K.; Emergency Medicine, School of Medicine
    Point-of-care ultrasound (POCUS) has become an essential part of the evaluation of vision loss among emergency physicians in the emergency department (ED). It is frequently used to evaluate for vitreous hemorrhage, foreign bodies, retinal detachment, optic neuritis and posterior vitreous detachment; however, it can also be used to evaluate for a central retinal artery occlusion (CRAO). A POCUS can reveal a hyperechoic density in the optic nerve sheath just proximal to the retinal surface, and this is referred to as a retrobulbar 'spot sign' (RBSS). We present the case of an 88-year-old male that presented to our community ED with a painless loss of vision to his right eye. A POCUS revealed an RBSS of the central retinal artery and he was subsequently diagnosed with a CRAO. At his 1-month follow-up, he has regained light perception and 15% of his vision, however, remains with significant visual impairment.
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    Point of care ultrasonography (POCUS) in diagnosing ruptured ectopic pregnancy
    (Elsevier, 2019-07) Kennedy, Sarah K.; Welch, Julie L.; Emergency Medicine, School of Medicine
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    Success of Implementation of a System-Wide Point of Care Ultrasound (POCUS) Training and Privileging Program for Emergency Physicians
    (Wiley, 2022-04) Kennedy, Sarah K.; Ferre, Robinson M.; Rood, Loren K.; Nti, Benjamin; Ehrman, Robert R.; Emergency Medicine, School of Medicine
    Objectives Point-of-care ultrasound (POCUS) is widely used in the emergency department (ED). Not all practicing emergency physicians (EPs) received POCUS training during residency, leaving a training gap that is reflected in POCUS privileging. The purpose of this study was to evaluate the success of meeting privileging criteria, as well as associated factors, following implementation of a basic POCUS training and privileging program within a large Department of Emergency Medicine. Methods We implemented a POCUS training and privileging program, based on national guidelines, for faculty physicians who worked at one of the following EDs staffed by the same Department of Emergency Medicine: a pediatric tertiary site, 2 tertiary academic sites, and 7 community sites. POCUS exams included aorta, cardiac, first-trimester obstetrics, and extended focused assessment with sonography in trauma. Pediatric emergency medicine faculty were taught soft tissue and thoracic ultrasound instead of aorta and obstetrics. Completion of the program required 16 hours of didactics, ≥25 quality assured ultrasound examinations by exam type and passing a series of knowledge-based exams. Descriptive statistics were calculated. Associations between physician characteristics and successfully becoming privileged in POCUS were modeled using Firth’s logistic regression. Results 176 faculty physicians were eligible. 145 (82.4%) achieved basic POCUS privileging during the study period. Different pathways were used including: 86 (48.9%) practice-based, 9 (5.1%) fellowship-based, and 82 (46.9%) residency-based. POCUS privileging was lower for those working in a community versus academic setting (OR 0.3, CI 0.1-0.9). A greater number of scans completed prior to the privileging program was associated with greater success. Conclusion Implementation of a POCUS training and privileging program can be successful in a large Department of Emergency Medicine that staffs hospitals in a large-scale healthcare system comprised of both academic and community sites. Faculty physicians with at least some prior exposure to POCUS were more successful.
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    Success of implementation of a systemwide point-of-care ultrasound privileging program for emergency medicine faculty
    (Wiley, 2022-04-01) Kennedy, Sarah K.; Ferre, Robinson M.; Rood, Loren K.; Nti, Benjamin; Ehrman, Robert R.; Brenner, Daniel; Rutz, Matt A.; Zahn, Greg S.; Herbert, Audrey G.; Russell, Frances M.; Emergency Medicine, School of Medicine
    Objectives: Point-of-care ultrasound (POCUS) is widely used in the emergency department (ED). Not all practicing emergency physicians received POCUS training during residency, leaving a training gap that is reflected in POCUS privileging. The purpose of this study was to evaluate the success of meeting privileging criteria as well as associated factors, following implementation of a basic POCUS training and privileging program within a large emergency medicine department. Methods: We implemented a POCUS training and privileging program, based on national guidelines, for faculty physicians who worked at one of the following EDs staffed by the same emergency medicine department: a pediatric tertiary site, two tertiary academic sites, and seven community sites. POCUS examinations included aorta, cardiac, first-trimester obstetrics (OB), and extended focused assessment with sonography in trauma. Pediatric emergency medicine faculty were taught soft tissue and thoracic US instead of aorta and OB. Completion of the program required 16 h of didactics, ≥25 quality-assured US examinations by examination type, and passing a series of knowledge-based examinations. Descriptive statistics were calculated. Associations between physician characteristics and successfully becoming privileged in POCUS were modeled using Firth's logistic regression. Results: A total of 176 faculty physicians were eligible. A total of 145 (82.4%) achieved basic POCUS privileging during the study period. Different pathways were used including 86 (48.9%) practice-based, nine (5.1%) fellowship-based, and 82 (46.9%) residency-based. POCUS privileging was lower for those working in a community versus academic setting (odds ratio 0.3, 95% confidence interval 0.1-0.9). A greater number of scans completed prior to the privileging program was associated with greater success. Conclusions: Implementation of a POCUS training and privileging program can be successful in a large emergency medicine department that staffs hospitals in a large-scale health care system composed of both academic and community sites. Faculty physicians with at least some prior exposure to POCUS were more successful.
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    Teaching Seasoned Doctors New Technology: An Intervention to Reduce Barriers and Improve Comfort With Clinical Ultrasound
    (Cureus, 2021-08-17) Kennedy, Sarah K.; Duncan, Taylor; Herbert, Audrey G.; Rood, Loren K.; Rutz, Matt A.; Zahn, Gregory S.; Welch, Julie L.; Russell, Frances M.; Emergency Medicine, School of Medicine
    Introduction: Although clinical ultrasound (CUS) is a core skill that is a requirement for emergency medicine (EM) residency graduation, only a fraction of EM practitioners who trained prior to this requirement are certified in CUS. The objective of the study was to implement a CUS workshop for practicing EM physicians, identify barriers to utilization, and assess comfort with the machine, obtaining and interpreting images, and incorporating CUS into clinical practice. Methods: This was a prospective descriptive cohort study of EM physician faculty who participated in an interactive 5-hour CUS workshop intervention that introduced four core CUS modalities via didactics and hands-on scanning stations. Pre- and post-surveys were administered to identify barriers to utilization and assess perceived comfort with CUS using a 5-point Likert scale. Results were analyzed using Fisher's exact and paired t-tests. Results: Thirty-five EM physicians participated with a 100% survey response rate. Only five of the physicians were ultrasound certified at the time of the workshop. On average, physicians were 16 years post-residency. Prior to the workshop, 29% had minimal ultrasound experience and 43% had not performed more than 50 ultrasounds. In the pre-course survey, every physician expressed at least one barrier to CUS utilization. Post-workshop, physicians felt significantly more comfortable using the ultrasound machine (p=0.0008), obtaining and interpreting images (p=0.0009 and p=0.0004), and incorporating CUS into clinical practice (p=0.002). Conclusion: This workshop is an effective tool to expose practicing physicians to core concepts of CUS, improve their comfort level, and reduce barriers to ultrasound utilization.