Browsing by Author "Carpenter, Christopher R."

Now showing 1 - 6 of 6
  • Thumbnail Image
    Item
    Advancing Patient-centered Outcomes in Emergency Diagnostic Imaging: A Research Agenda
    (Wiley, 2015-12) Kanzaria, Hemal K.; McCabe, Aileen M.; Meisel, Zachary M.; LeBlanc, Annie; Schaffer, Jason T.; Bellolio, Fernanda; Vaughan, William; Merck, Lisa H.; Applegate, Kimberly E.; Hollander, Judd E.; Grudzen, Corita R.; Mills, Angela M.; Carpenter, Christopher R.; Hess, Erik P.; Department of Emergency Medicine, IU School of Medicine
    Diagnostic imaging is integral to the evaluation of many emergency department (ED) patients. However, relatively little effort has been devoted to patient-centered outcomes research (PCOR) in emergency diagnostic imaging. This article provides background on this topic and the conclusions of the 2015 Academic Emergency Medicine consensus conference PCOR work group regarding “Diagnostic Imaging in the Emergency Department: A Research Agenda to Optimize Utilization.” The goal was to determine a prioritized research agenda to establish which outcomes related to emergency diagnostic imaging are most important to patients, caregivers, and other key stakeholders and which methods will most optimally engage patients in the decision to undergo imaging. Case vignettes are used to emphasize these concepts as they relate to a patient's decision to seek care at an ED and the care received there. The authors discuss applicable research methods and approaches such as shared decision-making that could facilitate better integration of patient-centered outcomes and patient-reported outcomes into decisions regarding emergency diagnostic imaging. Finally, based on a modified Delphi process involving members of the PCOR work group, prioritized research questions are proposed to advance the science of patient-centered outcomes in ED diagnostic imaging.
  • Thumbnail Image
    Item
    Guidelines for reasonable and appropriate care in the emergency department (GRACE): Recurrent, low-risk chest pain in the emergency department
    (Wiley, 2021) Musey, Paul I., Jr.; Bellolio, Fernanda; Upadhye, Suneel; Chang, Anna Marie; Diercks, Deborah B.; Gottlieb, Michael; Hess, Erik P.; Kontos, Michael C.; Mumma, Bryn E.; Probst, Marc A.; Stahl, John H.; Stopyra, Jason P.; Kline, Jeffrey A.; Carpenter, Christopher R.; Emergency Medicine, School of Medicine
    This first Guideline for Reasonable and Appropriate Care in the Emergency Department (GRACE-1) from the Society for Academic Emergency Medicine is on the topic: Recurrent, Low-risk Chest Pain in the Emergency Department. The multidisciplinary guideline panel used The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to assess the certainty of evidence and strength of recommendations regarding eight priority questions for adult patients with recurrent, low-risk chest pain and have derived the following evidence based recommendations: (1) for those >3 h chest pain duration we suggest a single, high-sensitivity troponin below a validated threshold to reasonably exclude acute coronary syndrome (ACS) within 30 days; (2) for those with a normal stress test within the previous 12 months, we do not recommend repeat routine stress testing as a means to decrease rates of major adverse cardiac events at 30 days; (3) insufficient evidence to recommend hospitalization (either standard inpatient admission or observation stay) versus discharge as a strategy to mitigate major adverse cardiac events within 30 days; (4) for those with non-obstructive (<50% stenosis) coronary artery disease (CAD) on prior angiography within 5 years, we suggest referral for expedited outpatient testing as warranted rather than admission for inpatient evaluation; (5) for those with no occlusive CAD (0% stenosis) on prior angiography within 5 years, we recommend referral for expedited outpatient testing as warranted rather than admission for inpatient evaluation; (6) for those with a prior coronary computed tomographic angiography within the past 2 years with no coronary stenosis, we suggest no further diagnostic testing other than a single, normal high-sensitivity troponin below a validated threshold to exclude ACS within that 2 year time frame; (7) we suggest the use of depression and anxiety screening tools as these might have an effect on healthcare use and return emergency department (ED) visits; and (8) we suggest referral for anxiety or depression management, as this might have an impact on healthcare use and return ED visits.
  • Thumbnail Image
    Item
    Imaging in Suspected Renal Colic: Systematic Review of the Literature and Multispecialty Consensus
    (Elsevier, 2019-09) Moore, Christopher L.; Carpenter, Christopher R.; Heilbrun, Marta E.; Klauer, Kevin; Krambeck, Amy C.; Moreno, Courtney; Remer, Erick M.; Scales, Charles; Shaw, Melissa M.; Sternberg, Kevan M.; Urology, School of Medicine
    Background Renal colic is common, and CT is frequently utilized when the diagnosis of kidney stones is suspected. CT is accurate but exposes patients to ionizing radiation and has not been shown to alter either interventional approaches or hospital admission rates. This multi-organizational transdisciplinary collaboration sought evidence-based, multispecialty consensus on optimal imaging across different clinical scenarios in patients with suspected renal colic in the acute setting. Methods In conjunction with the American College of Emergency Physicians (ACEP) eQual network, we formed a nine-member panel with three physician representatives each from ACEP, the ACR, and the American Urology Association. A systematic literature review was used as the basis for a three-step modified Delphi process to seek consensus on optimal imaging in 29 specific clinical scenarios. Results From an initial search yielding 6,337 records, there were 232 relevant articles of acceptable evidence quality to guide the literature summary. At the completion of the Delphi process consensus, agreement was rated as perfect in 15 (52%), excellent in 8 (28%), good in 3 (10%), and moderate in 3 (10%) of the 29 scenarios. There were no scenarios where at least moderate consensus was not reached. CT was recommended in 7 scenarios (24%), with ultrasound in 9 (31%) and no further imaging needed in 12 (45%). Summary Evidence and multispecialty consensus support ultrasound or no further imaging in specific clinical scenarios, with reduced-radiation dose CT to be employed when CT is needed in patients with suspected renal colic.
  • Thumbnail Image
    Item
    Imaging in Suspected Renal Colic: Systematic Review of the Literature and Multispecialty Consensus
    (Elsevier, 2019-09-01) Moore, Christopher L.; Carpenter, Christopher R.; Heilbrun, Marta E.; Klauer, Kevin; Krambeck, Amy C.; Moreno, Courtney; Remer, Erick M.; Scales, Charles; Shaw, Melissa M.; Sternberg, Kevan M.; Urology, School of Medicine
    Background Renal colic is common, and CT is frequently utilized when the diagnosis of kidney stones is suspected. CT is accurate but exposes patients to ionizing radiation and has not been shown to alter either interventional approaches or hospital admission rates. This multi-organizational transdisciplinary collaboration sought evidence-based, multispecialty consensus on optimal imaging across different clinical scenarios in patients with suspected renal colic in the acute setting. Methods In conjunction with the American College of Emergency Physicians (ACEP) eQual network, we formed a nine-member panel with three physician representatives each from ACEP, the ACR, and the American Urology Association. A systematic literature review was used as the basis for a three-step modified Delphi process to seek consensus on optimal imaging in 29 specific clinical scenarios. Results From an initial search yielding 6,337 records, there were 232 relevant articles of acceptable evidence quality to guide the literature summary. At the completion of the Delphi process consensus, agreement was rated as perfect in 15 (52%), excellent in 8 (28%), good in 3 (10%), and moderate in 3 (10%) of the 29 scenarios. There were no scenarios where at least moderate consensus was not reached. CT was recommended in 7 scenarios (24%), with ultrasound in 9 (31%) and no further imaging needed in 12 (45%). Summary Evidence and multispecialty consensus support ultrasound or no further imaging in specific clinical scenarios, with reduced-radiation dose CT to be employed when CT is needed in patients with suspected renal colic.
  • Thumbnail Image
    Item
    Measures of Intracranial Injury Size Do Not Improve Clinical Decision Making for Children With Mild Traumatic Brain Injuries and Intracranial Injuries
    (Wolters Kluwer, 2022) Greenberg, Jacob K.; Olsen, Margaret A.; Johnson, Gabrielle W.; Ahluwalia, Ranbir; Hill, Madelyn; Hale, Andrew T.; Belal, Ahmed; Baygani, Shawyon; Foraker, Randi E.; Carpenter, Christopher R.; Ackerman, Laurie L.; Noje, Corina; Jackson, Eric M.; Burns, Erin; Sayama, Christina M.; Selden, Nathan R.; Vachhrajani, Shobhan; Shannon, Chevis N.; Kuppermann, Nathan; Limbrick, David D., Jr.; Neurological Surgery, School of Medicine
    Background: When evaluating children with mild traumatic brain injuries (mTBIs) and intracranial injuries (ICIs), neurosurgeons intuitively consider injury size. However, the extent to which such measures (eg, hematoma size) improve risk prediction compared with the kids intracranial injury decision support tool for traumatic brain injury (KIIDS-TBI) model, which only includes the presence/absence of imaging findings, remains unknown. Objective: To determine the extent to which measures of injury size improve risk prediction for children with mild traumatic brain injuries and ICIs. Methods: We included children ≤18 years who presented to 1 of the 5 centers within 24 hours of TBI, had Glasgow Coma Scale scores of 13 to 15, and had ICI on neuroimaging. The data set was split into training (n = 1126) and testing (n = 374) cohorts. We used generalized linear modeling (GLM) and recursive partitioning (RP) to predict the composite of neurosurgery, intubation >24 hours, or death because of TBI. Each model's sensitivity/specificity was compared with the validated KIIDS-TBI model across 3 decision-making risk cutoffs (<1%, <3%, and <5% predicted risk). Results: The GLM and RP models included similar imaging variables (eg, epidural hematoma size) while the GLM model incorporated additional clinical predictors (eg, Glasgow Coma Scale score). The GLM (76%-90%) and RP (79%-87%) models showed similar specificity across all risk cutoffs, but the GLM model had higher sensitivity (89%-96% for GLM; 89% for RP). By comparison, the KIIDS-TBI model had slightly higher sensitivity (93%-100%) but lower specificity (27%-82%). Conclusion: Although measures of ICI size have clear intuitive value, the tradeoff between higher specificity and lower sensitivity does not support the addition of such information to the KIIDS-TBI model.
  • Thumbnail Image
    Item
    Unconditional care in academic emergency departments
    (Wiley, 2020-05-14) Kline, Jeffrey A.; Burton, John H.; Carpenter, Christopher R.; Meisel, Zachary F.; Miner, James R.; Newgard, Craig D.; Quest, Tammie; Martin, Ian B. K.; Holmes, James F.; Kaji, Amy H.; Bird, Steven B.; Coates, Wendy C.; Lall, Michelle D.; Mills, Angela M.; Ranney, Megan L.; Wolfe, Richard E.; Dorner, Stephen C.; Emergency Medicine, School of Medicine
    Recent news stories have explicitly stated that patients with symptoms of COVID-19 were "turned away" from emergency departments. This commentary addresses these serious allegations, with an attempt to provide the perspective of academic emergency departments (EDs) around the Nation. The overarching point we wish to make is that academic EDs never deny emergency care to any person.