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ST Elevation Myocardial InfarctionNCT04381260

RUral dispaRities in prehospitAL STEMI

An observational study of ST Elevation Myocardial Infarction and Cardiovascular Diseases, run by Wake Forest University Health Sciences at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Rural Americans are more likely to be unhealthy, older, living in poverty, uninsured, and medically underserved. The CDC has made achieving health equity and improving cardiovascular health for rural Americans one of their Healthy People 2020 overarching goals. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Interview and Survey
How many people
473 participants
Where
1 siteUnited States
Study dates
15 Dec 2020to 2 Jun 2022
How long will I take part?
1 Day
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Adult, Older adult

Study population: Registry: Patients included in the registry data will be an all-comers population of patients suffering from STEMI and transported to a primary PCI by one of 14 identified rural EMS agencies between 2016-2019. Key Informant Interviews: Participants will be EMS Directors, EMS Medical Directors, EMS Training Officers, Paramedics or EMT Crew Partners at the highest and lowest performing rural EMS agencies as determined by the STEMI registry data. Stakeholder Surveys: Survey respondents will be EMS Directors, EMS Medical Directors, EMS Training Officers, Paramedics or EMT Crew Partners at any of the 14 local EMS agencies identified as rural.

Who may be able to join

  • Age ≥ 18 years
  • Transported to one of four primary PCI centers (Wake Forest Baptist Medical Center (WFBMC), High Point Regional Medical Center (HPRMC), Novant Forsyth Medical Center (FMC), and Moses Cone) by rural agency (county identified rural by 2014 Census) ambulance from 2016-2019
  • STEMI identified prior to or upon arrival at hospital
  • Rural agency (county identified rural by 2014 Census)
  • Identified as the top or bottom two performing services ranked by overall PCI time by regional STEMI registry patients transported to primary PCI center from 2016-2019
  • Hold the position of EMS Director, EMS Medical Director, EMS Training Officer, Paramedic (2), EMT Crew Partner (2) or hold a similar key informant position at a local urban EMS agency (Forsyth county EMS) to allow the interview guide to be field-tested
  • Rural agency (county identified rural by 2014 Census) transported to primary PCI center from 2016-2019
  • Hold the position of EMS Director, EMS Medical Director, or EMS Training Officer or be a field provider with a Paramedic or EMT certification

Who cannot join

  • None
  • Key Informant Interviews:
  • None
  • Stakeholder Survey:
  • None

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Wake Forest University Health Sciences

    Winston-Salem, North Carolina, 27157

Other trials in United States

About this study

Rural Americans are more likely to be unhealthy, older, living in poverty, uninsured, and medically underserved. The CDC has made achieving health equity and improving cardiovascular health for rural Americans one of their Healthy People 2020 overarching goals. ST-Elevation Myocardial Infarction (STEMI) is a life-threatening cardiovascular emergency that frequently affects people without warning within the communities the Participants live and work. Patients with STEMI have a linear relationship between first medical contact to Percutaneous Coronary Intervention (PCI) time and mortality. Delays are particularly important in STEMI patients with cardiogenic shock, who experience an excess 3.3 deaths per 100 for every 10 minute delay to PCI (for PCI times between 60-180 minutes). Delayed PCI is also associated with a higher rate of long term morbidity, including congestive heart failure and repeat MI. Unfortunately, many rural EMS agencies fail to consistently achieve the recommended 90 minute PCI time goal. Rural agencies are less likely than urban/suburban agencies to meet time goals and this disparity exposes rural patients to excess morbidity and mortality. The American College of Cardiology/American Heart Association (ACC/AHA) endorse the need for prehospital strategies to reduce total ischemic time, particularly in rural settings.

Read the detailed description

Achieving PCI time goals is influenced by multiple factors, such as patient attributes, agency factors and elements of organizational Emergency Medical Services (EMS) culture. Organizational culture is defined as a set of shared values, beliefs, and assumptions within an organization that influences how people within that organization behave. Differences in organizational culture between hospitals have been associated with both cardiovascular mortality and disease-specific outcomes. Although not yet rigorously studied in the prehospital environment, it is likely that organizational culture contributes to differences in tempo and manner of completing interventions. Prehospital performance accountability and culture have been discussed by experts in EMS magazines but have never been formally studied.

EMS STEMI protocols that include direct transportation to a PCI-capable hospital and pre-hospital PCI center activation improve patient outcomes. Unsuccessful EKG transmission, delayed PCI center activation, and cardiogenic shock have been shown to negatively affect PCI time metrics and patient outcomes. The impact of PCI delays in the rural setting has not been specifically studied. In addition, there are agency-level factors, such as ambulances per capita, number of satellite stations, miles of interstate that likely affect the EMS agency's ability to achieve shorter PCI times for the STEMI patients they care for. This proposal will use mixed methods to identify previously unmeasured components of rural EMS agency organizational culture, structure, care processes, and patient environment that likely influence PCI time and patient outcomes. In addition, this project will identify best practices that can be tested as novel interventions and implemented in rural EMS agencies to improve STEMI time metrics and therefore reduce patient morbidity and mortality.

Being tested
No intervention, Interview, Survey
Keywords
cardiovascular emergency, cardiogenic shock
Medical subject headings
ST Elevation Myocardial Infarction, Cardiovascular Diseases, Shock, Cardiogenic

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • No interventionOther

    There is no intervention for patients included in this group as this is a retrospective data registry only.

  • InterviewOther

    Key Informant Interview

  • SurveyOther

    Stakeholder survey

Study groups in NCT04381260
Study groupRoleWhat they receive
2016-2019 STEMI RegistryRetrospective data will be collected to develop a well-characterized registry of patients treated from 2016-2019 by any of 14 local rural EMS agencies and transported to a facility capable of performing Percutaneous Coronary Intervention. This registry will be used to determine the time to PCI performance for each of the EMS agencies. Time will be adjusted for patient distance from a PCI center using a linear mixed model with a random effect for center and a fixed effect for distance. This process will allow qualitative methods to identify organizational culture, structure, and clinical processes that impact STEMI care from the two highest and lowest performing rural EMS agencies. (n=750)
Receives: Other: No intervention
Key Informant InterviewsAfter identifying the two highest and lowest performing rural EMS agencies in the 2016-2019 STEMI Registry, key employees from each of those agencies will be recruited to participate in semi-structured key informant interviews. The interviews will assess current clinical care, organizational culture and opportunities for improvement. (n=32)
Receives: Other: Interview
Stakeholder SurveysEmployees at all local EMS agencies will be invited to participate in stakeholder surveys to quantify each agency's use of the care strategies identified during Key Information Interviews. (n=240)
Receives: Other: Survey

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Compare the organizational culture, structure, and clinical processes of high and low performing local rural EMS agencies using qualitative methods

    Aim 1 will be accomplished by developing a 2016-2019 STEMI data registry, which will be utilized to identify high- and low-performing rural EMS agencies. After identifying these agencies, Key Informants will participate in interviews designed to assess facilitators and barriers to achieving STEMI time metrics.

    Measured: 1 day

Secondary outcomes (1)
  1. Quantify the association between factors identified in Aim 1 and PCI time among rural EMS STEMI patient encounters.

    Stakeholder surveys will be utilized to quantify each agency's use of factors identified in Aim 1

    Measured: 1 day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 May 2020
  2. Study start15 Dec 2020
  3. Primary completion2 Jun 2022
  4. Study completion2 Jun 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Other
Enrolment
473 participants (actual)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT04381260
Sponsor's protocol ID
IRB00064512
Status last verified
Mar 2024
First submitted
5 May 2020
Last updated
27 Mar 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data will not be made available to other researchers.

Publications

  • Stopyra JP, Miller CD, Hiestand BC, Lefebvre CW, Nicks BA, Cline DM, Askew KL, Riley RF, Russell GB, Burke GL, Herrington D, Hoekstra JW, Mahler SA. Chest Pain Risk Stratification: A Comparison of the 2-Hour Accelerated Diagnostic Protocol (ADAPT) and the HEART Pathway. Crit Pathw Cardiol. 2016 Jun;15(2):46-9. doi: 10.1097/HPC.0000000000000072.

    PubMed 27183253
  • Stopyra JP, Miller CD, Hiestand BC, Lefebvre CW, Nicks BA, Cline DM, Askew KL, Riley RF, Russell GB, Hoekstra JW, Mahler SA. Performance of the EDACS-accelerated Diagnostic Pathway in a Cohort of US Patients with Acute Chest Pain. Crit Pathw Cardiol. 2015 Dec;14(4):134-8. doi: 10.1097/HPC.0000000000000059.

    PubMed 26569652
  • O'Gara PT, Kushner FG, Ascheim DD, Casey DE Jr, Chung MK, de Lemos JA, Ettinger SM, Fang JC, Fesmire FM, Franklin BA, Granger CB, Krumholz HM, Linderbaum JA, Morrow DA, Newby LK, Ornato JP, Ou N, Radford MJ, Tamis-Holland JE, Tommaso CL, Tracy CM, Woo YJ, Zhao DX, Anderson JL, Jacobs AK, Halperin JL, Albert NM, Brindis RG, Creager MA, DeMets D, Guyton RA, Hochman JS, Kovacs RJ, Kushner FG, Ohman EM, Stevenson WG, Yancy CW; American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. 2013 ACCF/AHA guideline for the management of ST-elevation myocardial infarction: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation. 2013 Jan 29;127(4):e362-425. doi: 10.1161/CIR.0b013e3182742cf6. Epub 2012 Dec 17. No abstract available.

    PubMed 23247304
  • Armstrong PW, Boden WE. Reperfusion paradox in ST-segment elevation myocardial infarction. Ann Intern Med. 2011 Sep 20;155(6):389-91. doi: 10.7326/0003-4819-155-6-201109200-00008.

    PubMed 21930857
  • Bates ER, Nallamothu BK. Commentary: the role of percutaneous coronary intervention in ST-segment-elevation myocardial infarction. Circulation. 2008 Jul 29;118(5):567-73. doi: 10.1161/CIRCULATIONAHA.108.788620. No abstract available.

    PubMed 18663104
  • Studnek JR, Infinger A, Wilson H, Niess G, Jackson P, Swanson D. Decreased Time from 9-1-1 Call to PCI among Patients Experiencing STEMI Results in a Decreased One Year Mortality. Prehosp Emerg Care. 2018 Nov-Dec;22(6):669-675. doi: 10.1080/10903127.2018.1447621. Epub 2018 Mar 29.

    PubMed 29596009
  • Hsia RY, Shen YC. Percutaneous Coronary Intervention in the United States: Risk Factors for Untimely Access. Health Serv Res. 2016 Apr;51(2):592-609. doi: 10.1111/1475-6773.12335. Epub 2015 Jul 14.

    PubMed 26174998
  • Jollis JG, Al-Khalidi HR, Roettig ML, Berger PB, Corbett CC, Doerfler SM, Fordyce CB, Henry TD, Hollowell L, Magdon-Ismail Z, Kochar A, McCarthy JJ, Monk L, O'Brien P, Rea TD, Shavadia J, Tamis-Holland J, Wilson BH, Ziada KM, Granger CB. Impact of Regionalization of ST-Segment-Elevation Myocardial Infarction Care on Treatment Times and Outcomes for Emergency Medical Services-Transported Patients Presenting to Hospitals With Percutaneous Coronary Intervention: Mission: Lifeline Accelerator-2. Circulation. 2018 Jan 23;137(4):376-387. doi: 10.1161/CIRCULATIONAHA.117.032446. Epub 2017 Nov 14.

    PubMed 29138292
  • Jollis JG, Mehta RH, Roettig ML, Berger PB, Babb JD, Granger CB. Reperfusion of acute myocardial infarction in North Carolina emergency departments (RACE): study design. Am Heart J. 2006 Nov;152(5):851.e1-11. doi: 10.1016/j.ahj.2006.06.036.

    PubMed 17070144
  • Jollis JG, Roettig ML, Aluko AO, Anstrom KJ, Applegate RJ, Babb JD, Berger PB, Bohle DJ, Fletcher SM, Garvey JL, Hathaway WR, Hoekstra JW, Kelly RV, Maddox WT Jr, Shiber JR, Valeri FS, Watling BA, Wilson BH, Granger CB; Reperfusion of Acute Myocardial Infarction in North Carolina Emergency Departments (RACE) Investigators. Implementation of a statewide system for coronary reperfusion for ST-segment elevation myocardial infarction. JAMA. 2007 Nov 28;298(20):2371-80. doi: 10.1001/jama.298.20.joc70124. Epub 2007 Nov 4.

    PubMed 17982184
  • Kragholm K, Lu D, Chiswell K, Al-Khalidi HR, Roettig ML, Roe M, Jollis J, Granger CB. Improvement in Care and Outcomes for Emergency Medical Service-Transported Patients With ST-Elevation Myocardial Infarction (STEMI) With and Without Prehospital Cardiac Arrest: A Mission: Lifeline STEMI Accelerator Study. J Am Heart Assoc. 2017 Oct 11;6(10):e005717. doi: 10.1161/JAHA.117.005717.

    PubMed 29021273
  • Jollis JG, Al-Khalidi HR, Roettig ML, Berger PB, Corbett CC, Dauerman HL, Fordyce CB, Fox K, Garvey JL, Gregory T, Henry TD, Rokos IC, Sherwood MW, Suter RE, Wilson BH, Granger CB; Mission: Lifeline STEMI Systems Accelerator Project. Regional Systems of Care Demonstration Project: American Heart Association Mission: Lifeline STEMI Systems Accelerator. Circulation. 2016 Aug 2;134(5):365-74. doi: 10.1161/CIRCULATIONAHA.115.019474.

    PubMed 27482000
  • Bagai A, Al-Khalidi HR, Sherwood MW, Munoz D, Roettig ML, Jollis JG, Granger CB. Regional systems of care demonstration project: Mission: Lifeline STEMI Systems Accelerator: design and methodology. Am Heart J. 2014 Jan;167(1):15-21.e3. doi: 10.1016/j.ahj.2013.10.005. Epub 2013 Oct 23.

    PubMed 24332137
  • Steinberg BA, Jollis JG, Winkler A, Granger C, Newby LK. Treatment pathways and quality improvement for patients with acute myocardial infarction at a tertiary care center. Crit Pathw Cardiol. 2012 Jun;11(2):77-80. doi: 10.1097/HPC.0b013e318252990c.

    PubMed 22595818
  • Fordyce CB, Al-Khalidi HR, Jollis JG, Roettig ML, Gu J, Bagai A, Berger PB, Corbett CC, Dauerman HL, Fox K, Garvey JL, Henry TD, Rokos IC, Sherwood MW, Wilson BH, Granger CB; STEMI Systems Accelerator Project. Association of Rapid Care Process Implementation on Reperfusion Times Across Multiple ST-Segment-Elevation Myocardial Infarction Networks. Circ Cardiovasc Interv. 2017 Jan;10(1):e004061. doi: 10.1161/CIRCINTERVENTIONS.116.004061.

    PubMed 28082714

Questions about this trial

What is this clinical trial studying?

An observational study of ST Elevation Myocardial Infarction and Cardiovascular Diseases, run by Wake Forest University Health Sciences at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 27 Mar 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Compare the organizational culture, structure, and clinical processes of high and low performing local rural EMS agencies using qualitative methods (time frame: 1 day). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04381260, which also lists 57 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Mar 2024.

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