Cost Comparison of Cardiac Magnetic Resonance Imaging (MRI) Use in Emergency Department (ED) Patients With Chest Pain
13. august 2018 opdateret af: Wake Forest University Health Sciences
Randomized Cost Comparison of Cardiac MRI Use in ED Patients With Chest Pain
The purpose of this study is to investigate the best way to evaluate patients with chest pain in the emergency department.
It compares receiving treatment in an observation unit with admission to the hospital.
Patients treated in the observation unit will undergo cardiac Magnetic Resonance Imaging (MRI) testing.
Patients treated with hospital admission will undergo the testing their doctor determines is best for them.
All patients will undergo follow up to find out if they have had any heart related events.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Almost half of patients presenting to the Emergency Department (ED) with possible cardiac chest pain are at intermediate risk for short term death or infarction. Most are admitted to the hospital for serial ECG's, cardiac biomarkers, cardiology consultation, and stress testing or coronary angiogram. However, the 2007 ACC/AHA guidelines suggest that these patients can be managed in an observation unit (OU). Recently, cardiac magnetic resonance imaging (CMR) has proven more accurate than traditional testing modalities for the diagnosis of acute coronary syndrome (ACS), and has also received endorsement from the American College of Cardiology (ACC)/American Heart Association (AHA) guidelines. Immediate application of CMR in an OU may improve health care utilization compared to standard hospital admission for intermediate risk patients.
Research hypotheses:
- Patients in an OU CMR protocol will have lower cost for the index hospitalization than standard care.
- An OU CMR protocol for patients with intermediate risk chest pain will significantly improve the frequency of correct cardiovascular admission decisions when compared to standard care.
Methods summary:
110 ED patients at intermediate risk for short-term death or infarction, with nondiagnostic Electrocardiograms (ECG) and normal initial cardiac biomarkers, will be randomized to standard care or OU CMR protocols. Subjects in the OU CMR protocol will undergo CMR perfusion and stress testing, followed by serial biomarkers. Standard care subjects will be admitted for usual cardiac testing. ACS (infarction, death, coronary revascularization, unstable angina) will be assessed by evaluation of hospital course and phone follow-up at 30 days. Cost of hospital care will be compared among groups.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
110
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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North Carolina
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Winston-Salem, North Carolina, Forenede Stater, 27157
- Wake Forest University Baptist Medical Center - Emergency Department
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
18 år og ældre (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- Age greater than or equal to 18 years of age at the time of enrollment
- Chest discomfort or other symptoms consistent with possible Acute Coronary Syndrome (ACS) as indicated by the treating physician after obtaining an Electrocardiogram (ECG) and cardiac biomarkers for the patient's evaluation
- Patient requires an inpatient evaluation for their chest pain
- The treating physician feels the patient could be discharged home if cardiac disease was excluded
- Thrombolysis in Myocardial Infarction (TIMI) risk score ≥ 2 OR physician clinical impression of intermediate or high likelihood that the symptoms represent ACS
- Negative pregnancy test (if sexually active, female, and of childbearing age)
Exclusion Criteria:
- Initial troponin I > 1.0 ng/ml
- New ST-segment elevation on any electrocardiogram (≥ 1 mV)
- New ST-segment depression on any electrocardiogram (≥ 2 mV)
- Unable to lie flat
- Hypotension (systolic < 90 mm Hg)
- Contra-indications to MRI(Pacemaker, defibrillator, cerebral aneurysm clips, metallic ocular foreign body, implanted devices, claustrophobia)
- Patient refusal of medical record review and telephone follow-up at 30 days
- Terminal diagnosis with life expectancy less than 3 months
- Pregnancy per patient report or positive pregnancy test (Center for Medicare & Medicaid Services (CMS) exclusion criteria)
- Renal insufficiency(done prior to enrollment)or end stage renal disease
- Chronic liver disease (ex. hepatitis, cirrhosis)
- History of liver, heart, or kidney transplant
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Diagnostisk
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: Emergency Department (ED) Observation unit
Emergency Department observation unit- Cardiac Magnetic Resonance Imaging (MRI) Protocol.
Patients will be transferred to the observation unit and undergo a stress cardiac MRI evaluation.
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After Emergency Department (ED) evaluation, patients are randomized to Observation unit care or standard inpatient care.
Patients in the observation unit will also undergo a stress cardiac MRI.
Patients in the usual care arm may undergo any desired testing, including cardiac MRI, as determined by their treating physician.
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Ingen indgriben: Usual care
This is the comparison arm.
Patients are admitted to the hospital and undergo usual care.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Cost of Index Hospitalization
Tidsramme: Emergency Department (ED) arrival through hospital discharge, median length of stay was 28.1 hours
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Index hospitalization refers to the hospital visit during which the participant was enrolled in the trial.
The primary outcome is examining the cost for this visit.
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Emergency Department (ED) arrival through hospital discharge, median length of stay was 28.1 hours
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Correct Admission Decision, Based Upon the Reference Standard of Acute Coronary Syndrome (ACS) at 30 Days
Tidsramme: 30 Days
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Participants with ACS and admitted or not experiencing ACS and discharged will be considered a correct admission decision.
Remaining participants will be considered to have incorrect admission decisions.
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30 Days
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The Number of Participants Randomized to the OU and Were Able to Complete CMR Imaging
Tidsramme: Emergency Department (ED) arrival through hospital discharge
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The number of participants able to complete the planned imaging sequences will be measured.
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Emergency Department (ED) arrival through hospital discharge
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Number of Participants Who Utilized the Indicated Health Care Procedures
Tidsramme: 30d, 3mo, 6mo, and 1 year
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Measured as self report, assessed during telephone follow-up.
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30d, 3mo, 6mo, and 1 year
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Adverse Events During Magnetic Resonance Imaging (MRI) Scanning
Tidsramme: Occuring in the MRI scanning suite or within 30 minutes of the last image acquisition.
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Any event leading to early termination of the MRI acquisition, or requiring intervention by a physician, will be considered an adverse event related to MRI, excluding physician termination of image acquisition due to concerns of cardiac ischemia.
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Occuring in the MRI scanning suite or within 30 minutes of the last image acquisition.
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Efterforskere
- Ledende efterforsker: Chadwick D Miller, MD, WFUBMC
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
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Hjælpsomme links
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. januar 2008
Primær færdiggørelse (Faktiske)
1. marts 2009
Studieafslutning (Faktiske)
1. marts 2009
Datoer for studieregistrering
Først indsendt
8. maj 2008
Først indsendt, der opfyldte QC-kriterier
8. maj 2008
Først opslået (Skøn)
15. maj 2008
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
11. september 2018
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
13. august 2018
Sidst verificeret
1. august 2018
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- IRB00004120
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Ingen
Studerer et amerikansk FDA-reguleret enhedsprodukt
Ja
produkt fremstillet i og eksporteret fra U.S.A.
Ingen
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