Browsing by Author "Hollander, Judd E."

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    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.
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    Clinical and Research Considerations for Patients with Hypertensive Acute Heart Failure
    (Elsevier, 2016-08) Collins, Sean P.; Levy, Phillip D.; Martindale, Jennifer L.; Dunlap, Mark E.; Storrow, Alan B.; Pang, Peter S.; Sawyer, Douglas B.; Fermann, Gregory J.; Lenihan, Daniel J.; Peacock, W. Frank; Albert, Nancy M.; Hollander, Judd E.; Lindenfeld, JoAnn M.; Teerlink, John R.; Felker, G. Michael; Fonarow, Gregg C.; Butler, Javed; Department of Emergency Medicine, IU School of Medicine
    Management approaches for patients in the emergency department (ED) who present with acute heart failure (AHF) have largely focused on intravenous diuretics. Yet, the primary pathophysiologic derangement underlying AHF in many patients is not solely volume overload. Patients with hypertensive AHF (H-AHF) represent a clinical phenotype with distinct pathophysiologic mechanisms that result in elevated ventricular filling pressures. To optimize treatment response and minimize adverse events in this subgroup, we propose that clinical management be tailored to a conceptual model of disease based on these mechanisms. This consensus statement reviews the relevant pathophysiology, clinical characteristics, approach to therapy, and considerations for clinical trials in ED patients with H-AHF.
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    Is there a clinically meaningful difference in patient reported dyspnea in acute heart failure? An analysis from URGENT Dyspnea
    (Elsevier, 2017-06) Pang, Peter S.; Lane, Kathleen A.; Tavares, Miguel; Storrow, Alan B.; Shen, Changyu; Peacock, W. Frank; Nowack, Richard; Mebazaa, Alexandre; Laribi, Said; Hollander, Judd E.; Gheorghiade, Mihai; Collins, Sean P.; Emergency Medicine, School of Medicine
    Background Dyspnea is the most common presenting symptom in patients with acute heart failure (AHF), but is difficult to quantify as a research measure. The URGENT Dyspnea study compared 3 scales: (1) 10 cm VAS, (2) 5-point Likert, and (3) a 7-point Likert (both VAS and 5-point Likert were recorded in the upright and supine positions). However, the minimal clinically important difference (MCID) to patients has not been well established. Methods We performed a secondary analysis from URGENT Dyspnea, an observational, multi-center study of AHF patients enrolled within 1 h of first physician assessment in the ED. Using the anchor-based method to determine the MCID, a one-category change in the 7-point Likert was used as the criterion standard (‘minimally improved or worse’). The main outcome measures were the change in visual analog scale (VAS) and 5-point Likert scale from baseline to 6-h assessment relative to a 1-category change response in the 7-point Likert scale (‘minimally worse’, ‘no change’, or ‘minimally better’). Results Of the 776 patients enrolled, 491 had a final diagnosis of AHF with responses at both time points. A 10.5 mm (SD 1.6 mm) change in VAS was the MCID for improvement in the upright position, and 14.5 mm (SD 2.0 mm) in the supine position. However, there was no MCID for worsening, as few patients reported worse dyspnea. There was also no significant MCID for the 5-point Likert scale. Conclusion A 10.5 mm change is the MCID for improvement in dyspnea over 6 h in ED patients with AHF.
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    Multiple Cardiac Biomarker Testing Among Patients With Acute Dyspnea From the ICON-RELOADED Study
    (Elsevier, 2022-02) Abboud , Andrew; Kui , Naishu; Gaggin, Hanna K.; Ibrahim , Nasrien E.; Chen-Tournoux , Annabel A.; Christenson , Robert H.; Hollander, Judd E.; Levy , Phillip D.; Nagurney , John T.; Nowak, Richard M.; Pang, Peter S.; Peacock, W. Franklin; Walters, Elizabeth L.; Januzzi, James L.; Emergency Medicine, School of Medicine
    Background: Among patients with acute dyspnea, concentrations of N-terminal pro-B-type natriuretic peptide (NT-proBNP), high-sensitivity cardiac troponin T, and insulin-like growth factor binding protein-7 predict cardiovascular outcomes and death. Understanding the optimal means to interpret these elevated biomarkers in patients presenting with acute dyspnea remains unknown. Methods and results: Concentrations of NT-proBNP, high-sensitivity cardiac troponin T, and insulin-like growth factor binding protein-7 were analyzed in 1448 patients presenting with acute dyspnea from the prospective, multicenter International Collaborative of NT-proBNP-Re-evaluation of Acute Diagnostic Cut-Offs in the Emergency Department (ICON-RELOADED) Study. Eight biogroups were derived based upon patterns in biomarker elevation at presentation and compared for differences in baseline characteristics. Of 441 patients with elevations in all 3 biomarkers, 218 (49.4%) were diagnosed with acute heart failure (HF). The frequency of acute HF diagnosis in this biogroup was higher than those with elevations in 2 biomarkers (18.8%, 44 of 234), 1 biomarker (3.8%, 10 of 260), or no elevated biomarkers (0.4%, 2 of 513). The absolute number of elevated biomarkers on admission was prognostic of the composite end point of mortality and HF rehospitalization. In adjusted models, patients with one, 2, and 3 elevated biomarkers had 3.74 (95% confidence interval [CI], 1.26-11.1, P = .017), 12.3 (95% CI, 4.60-32.9, P < .001), and 12.6 (95% CI, 4.54-35.0, P < .001) fold increased risk of 180-day mortality or HF rehospitalization. Conclusions: A multimarker panel of NT-proBNP, hsTnT, and IGBFP7 provides unique clinical, diagnostic, and prognostic information in patients presenting with acute dyspnea. Differences in the number of elevated biomarkers at presentation may allow for more efficient clinical risk stratification of short-term mortality and HF rehospitalization.
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    N-Terminal Pro–B-Type Natriuretic Peptide in the Emergency Department: The ICON-RELOADED Study
    (Elsevier, 2018-03-20) Januzzi, James L.; Chen-Tournoux, Annabel A.; Christenson, Robert H.; Doros, Gheorghe; Hollander, Judd E.; Levy, Phillip D.; Nagurney, John T.; Nowak, Richard M.; Pang, Peter S.; Patel, Darshita; Peacock, W. Franklin; Rivers, E. Joy; Walters, Elizabeth L.; Gaggin, Hanna K.; Emergency Medicine, School of Medicine
    Background Contemporary reconsideration of diagnostic N-terminal pro–B-type natriuretic peptide (NT-proBNP) cutoffs for diagnosis of heart failure (HF) is needed. Objectives This study sought to evaluate the diagnostic performance of NT-proBNP for acute HF in patients with dyspnea in the emergency department (ED) setting. Methods Dyspneic patients presenting to 19 EDs in North America were enrolled and had blood drawn for subsequent NT-proBNP measurement. Primary endpoints were positive predictive values of age-stratified cutoffs (450, 900, and 1,800 pg/ml) for diagnosis of acute HF and negative predictive value of the rule-out cutoff to exclude acute HF. Secondary endpoints included sensitivity, specificity, and positive (+) and negative (−) likelihood ratios (LRs) for acute HF. Results Of 1,461 subjects, 277 (19%) were adjudicated as having acute HF. The area under the receiver-operating characteristic curve for diagnosis of acute HF was 0.91 (95% confidence interval [CI]: 0.90 to 0.93; p < 0.001). Sensitivity for age stratified cutoffs of 450, 900, and 1,800 pg/ml was 85.7%, 79.3%, and 75.9%, respectively; specificity was 93.9%, 84.0%, and 75.0%, respectively. Positive predictive values were 53.6%, 58.4%, and 62.0%, respectively. Overall LR+ across age-dependent cutoffs was 5.99 (95% CI: 5.05 to 6.93); individual LR+ for age-dependent cutoffs was 14.08, 4.95, and 3.03, respectively. The sensitivity and negative predictive value for the rule-out cutoff of 300 pg/ml were 93.9% and 98.0%, respectively; LR− was 0.09 (95% CI: 0.05 to 0.13). Conclusions In acutely dyspneic patients seen in the ED setting, age-stratified NT-proBNP cutpoints may aid in the diagnosis of acute HF. An NT-proBNP <300 pg/ml strongly excludes the presence of acute HF.
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    Using Sex‐specific Cutoffs for High‐sensitivity Cardiac Troponin T to Diagnose Acute Myocardial Infarction
    (Wiley, 2021-04) Peacock, W. Frank; Baumann, Brigitte M.; Rivers, E. Joy; Davis, Thomas E.; Handy, Beverly; Jones, Christopher W.; Hollander, Judd E.; Limkakeng, Alexander T.; Mehrotra, Abhi; Than, Martin; Cullen, Louise; Ziegler, André; Dinkel-Keuthage, Carina; Pathology and Laboratory Medicine, School of Medicine