Publications

Zachrison KS, Cross D. Racial disparities in endovascular thrombectomy: It's more than just access. Stroke. 2022. epub ahead of print: 121.037921.

Cash RE, Boggs KM, Richards CT, Camargo CA, Zachrison KS. Emergency medical service (EMS) time intervals for suspected stroke patients in the United States. Stroke. In Press.

Zachrison KS, Yan Z, Samuels-Kalow ME, Licurse A, Zuccotti G, Schwamm LH. The Association of Physician Age and Gender with Early Virtual Care Adoption. JAMA Network Open. In Press.

Nobleza COS, Inoa V, Mittal S, Zachrison KS, Madsen TE. Impact of a pandemic on early career women. Stroke. 2021; In Press.

Yan Z, Nielsen V, Song G, Christie A, Schwamm LH, Zachrison KS. Integration of Regional Hospitalizations, Registry and Vital Statistics Data for Development of a Single Statewide Ischemic Stroke Database. Journal of Stroke and Cerebrovascular Diseases. online ahead of print.

Temin E, Samuels-Kalow ME, Cash RE, Boggs KM, Camargo CA, Zachrison KS. Measuring without a ruler: limited data to characterize the relationship between advanced practice provider staffing and emergency department performance. JACEP Open. 2022;3(1):e12617.

Zachrison KS, Samuels-Kalow ME, Boggs KM, Li S, Hayden EM, Camargo CA. The association of ED payor mix with ED receipt of telehealth services: an observational analysis. Western Journal of Emergency Medicine.  In Press.

Dezman Z, Stryckman, Zachrison KS, Conrad RM, Marcozzi D, Pimentel L, Samuels-Kalow M, Cairns CB. Masking for COVID-19 is associated with decreased emergency department utilization for non-COVID viral illnesses and respiratory conditions in Maryland. American Journal of Medicine. 2021; Online ahead of print. PMID: 34242620.

Carlson LC, Zachrison KS, Yun BJ, Ciccolo G, White BA, Camargo CA, Samuels-Kalow ME. The association of demographic, socioeconomic, and geographic factors with potentially preventable emergency department utilization. Western Journal of Emergency Medicine. 2021;22(6):1283-1290. PMID: 34787552

Dehon E, Zachrison KS, Peltzer-Jones J, Tabatabai RR, Clair E, Puskarich M, Ondeyka A, Walter L, Situ-LaCasse EH, Fix M. Sources of psychological distress and coping opportunities among emergency medicine physicians during COVID-19. Western Journal of Emergency Medicine. 2021;22(6):1240-1252. PMID: 34787546

Zachrison KS, Yan Z, Schwamm LH. Changes in virtual and in-person health care utilization in a large health system during the COVID-19 pandemic. JAMA Network Open. 2021; 4(10):e2129973. PMID:34705016

Zachrison KS, Richard JV, Wilcock A, Zubizaretta J, Schwamm LH, Uscher-Pines L, Mehrotra A. Association of hospital telestroke adoption with changes in initial hospital presentation and transfers among patients with stroke and transient ischemic attack. JAMA Network Open. 2021; 4(9):e2126612. PMID: 34554236

Zachrison KS, Sharma R, Wang Y, Mehrotra A, Schwamm LH. National trends in telestroke utilization in a US commercial platform prior to the COVID-19 pandemic. Stroke and Cerebrovascular Disease. 2021; 30(10):106035. PMID: 34419836

Hayden EM, Davis C, Clark S, Josh AU, Krupinski EA, Naik N, Ward MJ, Zachrison KS, Olsen E, Chang BP, Burner E, Yadav K, Chandra S. Telehealth in emergency medicine: A consensus conference to map the intersection of telehealth and emergency medicine. Academic Emergency Medicine. 2021 Jul. Online ahead of print. PMID: 3425649

Patel SY, Huskamp HA, Barnett ML, Zubizarreta JR, Zachrison KS, Busch AB, Wilcock AD, Mehrotra A. Association between telepsychiatry capability and treatment of patients with mental illness in the emergency department. Psychiatric Services. 2021; online ahead of print. PMID: 34407629

Zachrison KS, Richard JV, Mehrotra A. Paying for telemedicine in smaller rural hospitals. JAMA Health Forum. 2021; doi:10.1001/jamahealthforum.2021.1570

Hayden EM, Borczuk P, Dutta S, Liu SW, White BA, Lavin-Parsons K, Zheng H, Filbin MR, Zachrison KS. Can Video-based Telehealth Examinations of the Abdomen Safely Determine the Need for Imaging? Journal of Telemedicine and Telecare; 2021. Online ahead of print. PMID: 34142893.

Uscher-Pines L, Sousa J, Mehrotra A, Schwamm L, Zachrison KS. Rising to the challenges of the pandemic: telehealth innovations in U.S. emergency departments. Journal of the American Informatics Association. 2021; 28(9):1910-1918. PMID: 34022045

Zachrison KS, Schwamm LH, Xu H, Matsouaka R, Shah S, Smith EE, Xian Y, Fonarow GC, Saver J. Frequency, Characteristics, and Outcomes of Endovascular Thrombectomy in Stroke Patients Beyond 6 Hours of Onset in U.S. Clinical Practice. Stroke. 2021; 52(12):3805-3814. PMID: 34120506

Zachrison KS, Yan Z, Sequist T, Licurse A, Tan-McGrory A, Erskine A, Schwamm LH. Patient Characteristics Associated with the Successful Transition to Virtual Care: Lessons Learned from the First One Million Patients. Journal of Telemedicine and Telecare. 2021; online ahead of print. PMID: 34120506

Kamel H, Parikh N, Chatterjee A, Kim L, Saver J, Schwamm LH, Zachrison KS, Nogueira R, Adeoye O, Diaz I, Ryan A, Pnadya A, Navi B. Access to Mechanical Thrombectomy for Ischemic Stroke in the United States. Stroke 2021; 52(8):2554-2561. PMID: 33980045

Jaffe TA, Hayden EM, Uscher-Pines L, Sousa J, Schwamm LH, Mehrotra A, Zachrison KS. A systematic review of telehealth utilization in emergency care during COVID-19. Journal of the American College of Emergency Physicians Open. 2021; 2(3):e12443. PMID: 33969356

Samuels-Kalow ME, Jaffe T, Zachrison KS. Beyond just reporting disparities: designing telemedicine systems to improve health equity. Emergency Medicine Journal. 2021; 38(6):474-476. PMID: 33674277

Turner AC, Zachrison KS. Utilization of advanced imaging for acute ischemic stroke: the ongoing quest for optimized stroke systems of care. Circulation: Cardiovascular Quality and Outcomes. 2021; 14(4):e007845. PMID: 33757309. Access

Zachrison KS, Boggs KM, Cash RE, Burton KR, Espinola JA, Hayden EM, Sauser JP, Mehrotra A, Camargo CA. Are state telemedicine parity laws associated with greater use of telemedicine in the emergency department? Journal of the American College of Emergency Physicians Open. 2021;2(1):e212359. PMID: 33491006.

Wilcock AD, Schwamm LH, Zubizarreta JR. Zachrison KS, Uscher-Pines L, Richard JV, Mehrotra A. Reperfusion treatment and stroke outcomes in hospitals with telestroke capability. JAMA Neurology. 2021; 78(5):527-535. PMID: 33646272.

Zhong C, Freeman RE, Boggs KM, Zachrison KS, Gao J, Espinola JA, Camargo CA Jr. Receipt of telepsychiatry and emergency department visit outcomes in New York State. Psychiatr Q 2021; epub ahead of print. PMID: 33587257

Su CM, Warren A, Kraus C, Macias-Konstantopoulos W, Zachrison KS, Viswanathan A, Anderson C, Gurol ME, Greenberg SM, Goldstein JN. Lack of racial and ethnic-based differences in acute care delivery in intracerebral hemorrhage. International Journal of Emergency Medicine. International Journal of Emergency Medicine. 2020. 2021;14(1):6. PMID: 33468042

Zachrison KS, Boggs KM, Gao J, Camargo CA, Samuels-Kalow ME. Patient insurance status is associated with care received after transfer among pediatric patients in the emergency department. Academic Pediatrics. 2021;21(5):877-884. PMID: 33227534

Etherton MR*, Zachrison KS* [*co-first authorship], Yan Z, Sveikata L, Bretzner M, Estrada J, Viswanathan A, Singhal AB, Schwamm LH. Regional changes in patterns of stroke presentation during the COVID-19 pandemic. Stroke. 2021;52(4):1398-1406. PMID: 33588592

Zachrison KS, Khatri P. Self-driving prehospital triage decisions for suspected stroke – another step closer. JAMA Neurology. 2020; epub ahead of print. PMID: 33252636

Zachrison KS, Natsui S, Luan Erfe BM, Mejia NI, Schwamm LH. Language preference does not influence stroke patients’ symptom recognition or emergency care time metrics. American J Emerg Med. 2020; epub ahead of print. PMID: 33168382

Zachrison KS, Li S, Reeves MJ, Adeoye O, Camargo CA, Schwamm LH, Hsia RY. A strategy for reliable identification of ischemic stroke, thrombolytics, and thrombectomy in large administrative databases. Stroke and Vascular Neurology. 2020; epub ahead of print. PMID: 33177162.

Boggs KM, Teferi MM, Espinola JA, Sullivan AF, Hasegawa K, Zachrison KS, Samuels-Kalow, ME, Camargo CA Jr. Consolidating emergency department-specific data to enable linkage with large administrative datasets. Western Journal of Emergency Medicine. 2020;21(6):141-145. PMID: 33207159

Uscher-Pines L, Sousa J, Zachrison KS, Guzik AK, Schwamm LH, Mehrotra A. What drives greater assimilation of telestroke in emergency departments? J Stroke and Cerebrovasc Dis. 2020;29(12): epub ahead of print. PMID: 32992169

Samuels-Kalow ME, Boggs KM, Cash RE, Herrington R, Mick NW, Rutman MS, Venkatesh AK, Zabbo CP, Sullivan AF, Hasegawa K, Zachrison KS, Camargo CA Jr. Screening for health-related social needs of emergency department patients. Annals of Emergency Medicine. 2021;77(1):62-68. PMID: 33160720

Zachrison KS, Boggs KM, Hayden EM, Cash RE, Espinola JA, Samuels-Kalow ME, Sullivan AF, Mehrotra A, Camargo CA. Factors associated with emergency department adoption of telemedicine: 2014-2018. Journal of the American College of Emergency Physicians Open. 2020;1(6):1304-1311. PMID: 33392537

Jaffe TA, Goldstein JN, Yun BJ, Etherton M, Leslie-Mazwi T, Schwamm LH, Zachrison KS. Impact of emergency department crowding with delays in acute stroke care. Western Journal of Emergency Medicine. 2020;21(4):892-899.

Hayden EM, Boggs KM, Espinola JA, Camargo CA, Zachrison KS. Telemedicine facilitation of transfer coordination from emergency departments. Annals Emerg Med. 2020; 76(5):602-608. PMID: 32534835

Richard JV, Wilcock AD, Schwamm LH, Uscher-Pines L, Zachrison KS, Siddiqui A, Mehrotra A. Growth of telestroke capacity in U.S. hospitals. JAMA Neurology. 2020; e201274. PMID: 3245424

Wilcock AD, Zachrison KS, Schwamm LH, Uscher-Pines L, Zubizarreta JR, Mehrotra A. Trends among rural and urban Medicare beneficiaries in care delivery and outcomes for acute stroke and transient ischemic attacks, 2008-2017. JAMA Neurology. 2020;77(7):863-71. PMID:32364573

Sharma R, Zachrison KS, Viswanathan A, Matiello M, Estrada J, Anderson CD, Etherton M, Silverman S, Rost NS, Feske SK, Schwamm LH. Trends in telestroke care delivery: a 15-year academic hub-and-spoke network experience. Circulation: Cardiovascular Outcomes. 2020;13(3):e005903. PMID: 32126805

Zachrison KS, Onnela JP, Reeves MJ, Hernandez A, Camargo CA, Zhao X, Matsouaka RA, Goldstein JN, Metlay JP, Schwamm LH. Hospital factors associated with interhospital transfer destination for stroke in the Northeast United States. Journal of the American Heart Association. 2020;9(1):e011575. PMID: 31888430

Freeman RE, Boggs KM, Zachrison KS, Freid RD, Sullivan AF, Espinola JA, Camargo CA. National study of telepsychiatry use in US emergency departments. Psychiatric Services. 2020;71(6):540-546. PMID: 32019430

Zachrison KS, Aaronson E, Mahmood S, Rosand J, Viswanathan A, Schwamm LH, Goldstein JN. Resource utilization among patients transferred for intracerebral hemorrhage. Stoke and Vascular Neurology. 2019;4(4):223-226. PMID: 32030206.

Nielsen VM, Dejoie-Stanton C, Song G, Christie A, Guo J, Zachrison KS. The Association between Presentation by EMS and EMS prenotification with the receipt of intravenous tissue-type plasminogen activator in a state implementing stroke systems of care. Prehospital Emergency Care. 2020;24(3):319-325. PMID: 31490714.

Zachrison KS, Dhand A, Schwamm LH, Onnela JP. A Network Approach to Stroke Systems of Care. Circulation: Quality and and Outcomes. 2019 Aug; 12(8):e0005526. PMID: 31405293.

Zachrison KS, Boggs KM, Hayden EM, Espinola JA, Camargo CA. Understanding barriers to telemedicine implementation in rural emergency departments. Annals Emerg Med. 2020;75(3):392-399. PMID: 31474481

Zachrison KS, Goldstein JN. The White Whale - Education that Sticks, and Changes Outcomes. Stroke. 2019;50(5):1043-1044. PMID: 30917753

Zachrison KS, Leslie-Mazwi TM, Boulouis G, Goldstein JN, Regenhardt RW, Viswanathan A, Lauer A, Siddiqui AK, Charidimou A, Rost N, Schwamm LH. Frequency of Early Rapid Improvement in Stroke Severity during Interfacility Transfer. Neurology Clinical Practice. 2019;9(5):373-380. PMID: 31750022

Shah S, Xian Y, Sheng S, Zachrison KS, Saver JL, Sheth KN, Fonarow GC, Schwamm LH, Smith EE. Use, Temporal Trends, and Outcomes of Endovascular Therapy after Interhospital Transfer in the United States. Circulation. 2019; 139 (13):1568-1577. PMID: 30700144

Zachrison KS, Boggs KM, Hayden EM, Espinola JA, Camargo CA. A national survey of telemedicine use by U.S. emergency departments. Journal of Telemedicine and Telecare. 2018 Dec 17: [Epub ahead of print]. PMID 30558518.

Zachrison KS, Onnela JP, Hernandez A, Reeves MJ, Camargo CA, Cox M, Matsouaka RA, Metlay JP, Goldstein JN, Schwamm LH. Ischemic Stroke Transfer Patterns in the Northeast United States. Journal of Stroke and Cerebrovascular Disease.  2019 Feb; 28(2):295-304. PMID: 30389376.

Brova M, Boggs K, Zachrison KS, Freid R, Sullivan A, Espinola J, Boyle T, Camargo CA. Pediatric Telemedicine Use in U.S. Emergency Departments. Academic Emergency Medicine. 2018. [Epub ahead of print] PMID: 30307078.

Ali A*, Zachrison KS* [*co-first authorship], Schwamm LH, Eschenfeldt P, Hur C. Optimization of prehospital traige of patients with suspected ischemic stroke: Results of a mathematical Model. Stroke 2018; 49(10):2532-2535. PMID: 303055100.

Yun BJ, Borczuk P, Zachrison KS, Goldstein JN, Berlyand Y, Raja AS. Utilization of head CT during injury visits to United States emergency departments: 2012-2015. Am J Emerg Med. 2018 Aug; 36(8):1463-1466.  PMID: 29779675

Regenhardt RW, Mecca AP, Flavin SA, Boulouis G, Lauer A, Zachrison KS, Boomhower J, Patel AB, Hirsch JA, Schwamm LH, Leslie-Mazwi TM. Delays in the Air or Ground Transfer of Patients for Endovascular Thrombectomy. Stroke. 2018 Jun;49(6):1419-1325. PMID: 297122881

Gadhia R, Schwamm LH, Siddiqui KA, Viswanathan A, Whitney C, Moreno A, Zachrison KS. Evaluation of the Experience of Spoke Hospitals in an Academic Telestroke Network. Telemedicine and e-Health. 2018. [Epub ahead of print] PMID: 30256724

Moreno A, Schwamm LH, Siddiqui KA, Viswanathan A, Whitney C, Rost N, Zachrison KS. Frequent hub-spoke contact is associated with improved spoke hopsital performance: Results from the MGH Telestroke Network.  Telemedicine and e-Health. 2018 Sep; 24(9): 678-683. PMID: 29271703

Zachrison KS, Hayden EM, Schwamm LH, Espinola JA, Sullivan AF, Boggs KM, Raja AS, Camargo CA. Characterizing New England Emergency Departments by Telemedicine Use.  West J Emerg Med.  2017 Oct;18(6):1055-1060. PMID: 29085537

Sauser Zachrison K, Schwamm LH. Implementation of rapid treatment and interfacility transport for patients with suspected stroke by large-vessel occlusion: In one door and out the other. JAMA Neurology. 2017 May; PMID: 28492814

Sauser Zachrison K, Iwashyna TJ, Gebremariam A, Hutchin M, Lee JM.  Can longitudinal generalized estimating equation models distinguish network influence and homophily?  An agent-based modeling approach to measurement characteristics.  BMC Medical Research Methodology.   2016 Dec 28; 16(1):174. PMID: 28031023

Sauser Zachrison K, Levine DA, Fonarow GC, Bhatt DL, Cox M, Schulte P, Smith EE, Suter RE, Xian Y, Schwamm LH.  Timely reperfusion in stroke and myocardial infarction is not correlated – An opportunity for better coordination of acute care.  Circulation: Quality and Outcomes.  2017 Mar; 10(3): PMCID: PMC5369604

Sauser Zachrison K, Shen E, Ajani Z, Neil WP, Sangha N, Gould MK, Ballard D, Sharp AL.  Safe and Effective Implementation of Telestroke in a US Community Hospital Setting.  The Permanente Journal.  2016 Fall; 20(4):11-15. PMID: 27479951

Sauser K, Alkhawam L, Pierchala L, Pang PS.  Lactate levels as a marker of tissue hypoperfusion in acute heart failure patients seen in the emergency department: a pilot study.  Emergency Care Journal.  2016; 12(5458):6-10

Sauser Zachrison K, Shen E, Ajani Z, Neil WP, Sangha N, Gould MK, Sharp AL.  Emergency care of acute ischemic stroke patients in the Kaiser Permanente Southern California Integrated Health System.  The Permanente Journal.  2016 Spring; 20(2):10-3. PMID: 27043833

Sauser K, Levine DA, Hayward, RA.  A review of the clinical evidence related to early treatment of elevated LDL for cardiovascular primary prevention.  Evidence-Based Medicine.  2015 Oct; 20(5):162-9. PMID: 26173413

Sauser K, Vickery KD, Davis MM.  Bottleneck or magnifying glass?  Monitoring the healthcare system’s vital signs through Emergency Departments.  Public Health Reports.  2015 Sep-Oct; 130(5):431-4. PMID: 26327719

Sauser K, Bravata D, Hayward RA, Levine DA.  A national evaluation of door-to-imaging time among acute ischemic stroke patients within the Veterans Health Administration.  J Stroke and Cerebrovasc Dis.  2015 Apr 13.  Epub ahead of print.  PMID: 25881775

Kocher KE, Haggins A, Sabbatini AK, Sauser K, Sharp AL  Emergency department hospitalization volume and mortality in the United States.  Ann Emerg Med.  2014;64(5):446-457. PMID: 25041705

Sauser K, Levine DA, Nickles A, Reeves MJ.  Hospital variation in thrombolysis times in acute ischemic stroke patients:  the contributions of door-to-imaging time and imaging-to-needle time.  JAMA Neurology.  2014;71(9):1155-1161. PMID: 25023407

Sauser K, Burke JF, Reeves MJ, Barsan WG, Levine DA.  A systematic review and critical appraisal of the quality measures for the emergent care of acute ischemic stroke. Ann Emerg Med.  2014;64(3):235-244.  PMID:  24613595

Cobb E, Sauser K.  “Case Study 3:  Electronic Health Records.” In Redirecting Innovation in U.S. Health Care:  Options to Decrease Spending and Increase Value;  Case Studies.  2014.  Rand Corporation, Santa Monica, CA.

Pang PS, Collins SP, Sauser K, Andrei A, Storrow AB, Hollander JE, Tavares M, Spinar J, Macarie C, Raev D, Nowak R, Gheorghiade M, Mebazaa A.  Assessment of dyspnea early in acute heart failure: patient characteristics and response differences between likert and visual analog scales.   Acad Emerg Med.  2014;21(6):659-666.  PMID:  25039550

Sharp AL, Cobb EM, Dresden SM, Richardson DK, Sabbatini AK, Sauser K, Kocher KE.  Understanding the value of emergency care: a framework incorporating stakeholder perspectives. J Emerg Med. 2014;71(9):332-342.  PMID: 24881891

Sauser K, Spertus JA, Pierchala L, Pang PS.  Quality of life assessment for acute heart failure patients from emergency department presentation through 30 days post-discharge:  a pilot study with the Kansas City Cardiomyopathy Questionnaire.  J Card Failure.  2014; 20(1):18-22.  PMID:  24296380

Sauser K, Burke JF, Scott PA, Levine DA, Meurer WJ.  Time to brain imaging in acute stroke is improving:  secondary analysis of the INSTINCT trial. Stroke.  2014; 45(1):287-289.  PMID:  24232449

Vickery KD, Sauser K, Davis M.  Policy responses to demand for health care access:  from the individual to the population.  JAMA.  2013; 309(7):665-666.  PMID: 23423410

Powell ES, Sauser K, Cheema NC, Pirotte MJ, Quattromani E, Avula U, Khare RK, Courtney DM.  Severe sepsis in do-not-resuscitate patients:  intervention and mortality rates.  J Emerg Med.  2013; 44(4):742-749.  PMID: 23260467

Quattromani E, Powell ES, Khare R, Cheema NC, Sauser K, Periyanayagam U, Pirotte MJ, Feinglass J, Courtney DM.  Hospital reported data on the pneumonia quality measure time to first antibiotic dose is not associated with inpatient mortality: results of a nationwide cross-sectional analysis.  Acad Emerg Med.  2011; 18(5):496-503.  PMID:21545670

Sauser K, Burke RV, Ferrer RR, Goodhue CJ, Chokshi NC, Upperman JS.  Disaster preparedness among medical students: a survey assessment.  Am J Disaster Med.  2010; 5(5):275-284.  PMID: 21162409

Ferrer R, Ramirez M, Sauser K, Iverson E, Upperman J.  Emergency drills and exercises in healthcare organizations:  Assessment of pediatric population involvement using after-action reports.  Am J Disaster Med.  2009; 4(1):23-32.  PMID: 19378666