Efficacy Evaluation of Observation Unit Cardiac Magnetic Resonance Imaging (MRI) in Patients With Intermediate Risk Acute Chest Pain
6 de noviembre de 2017 actualizado por: Wake Forest University Health Sciences
The purpose of this study is to investigate the best way to evaluate patients with chest pain in the emergency department.
It compares types of cardiac tests performed while receiving treatment in an observation unit.
Patients will either undergo cardiac MRI testing or conventional care testing.
Patients treated in the conventional care testing group 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.
Descripción general del estudio
Estado
Terminado
Condiciones
Intervención / Tratamiento
Descripción detallada
Despite spending $12 billion annually on the emergency evaluation of chest pain in the US, only 15% of admitted patients have a cardiac cause of their presenting symptoms. Observation units (OU) improve resource utilization, are endorsed by the ACC/AHA guidelines, but have seen limited implementation in non-low risk chest pain patients due to limitations of traditional cardiac testing. Cardiac magnetic resonance imaging (CMR) is sensitive and specific for ischemia, can simultaneously assess cardiac function and myocardial perfusion, and could revolutionize the diagnostic process for intermediate risk patients with chest pain. The superior accuracy of CMR could decrease testing resulting from false positive results. The high sensitivity for ongoing ischemia could allow imaging in parallel with cardiac markers.
Research hypotheses:
OU-CMR will have superior therapeutic efficacy to OU-conventional testing.
An OU-CMR strategy will have higher diagnostic thinking efficacy than OU-conventional testing.
Methods summary:
To address the question of feasibility of a CMR approach to managing patients at intermediate risk for ACS, we propose a randomized clinical trial of 120 patients at intermediate risk of ACS that present to the ED of Wake Forest University Baptist Medical Center (WFUBMC) for evaluation of chest pain. All patients will receive care in an OU, and will be randomized to CMR, or conventional testing. CMR participants will undergo cardiac markers and CMR testing; conventional testing participants will undergo serial cardiac markers followed by conventional 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.
Tipo de estudio
Intervencionista
Inscripción (Actual)
124
Fase
- No aplica
Contactos y Ubicaciones
Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.
Ubicaciones de estudio
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North Carolina
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Winston-Salem, North Carolina, Estados Unidos, 27157
- Wake Forest University Baptist Medical Center - Emergency Department
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Criterios de participación
Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.
Criterio de elegibilidad
Edades elegibles para estudiar
18 años y mayores (Adulto, Adulto Mayor)
Acepta Voluntarios Saludables
No
Géneros elegibles para el estudio
Todos
Descripción
Inclusion Criteria:
- Age greater than or equal to 18 years
- Chest discomfort or other symptoms consistent with possible ACS
- TIMI risk score ≥ 1 or physician impression* of intermediate or high likelihood symptoms represent ACS
- Patient requires an inpatient or observation unit evaluation for their chest pain
- The treating physician feels the patient could be discharged home if cardiac disease was excluded
- ED attending feels patient is safe for observation unit care**
Exclusion Criteria:
- Initial troponin I > 1.0 ng/ml
- New ST-segment elevation (≥1mV) or depression (≥2 mV)
- Contra-indications to MRI (listed below)
- Unable to lie flat
- Hypotension (systolic < 90 mm Hg)
- Renal insufficiency (estimated GFR < 45 cc/min) or end stage renal disease
- Life expectancy less than 3 months
- Patient refusal of medical record review and follow-up at 30 days
- Pregnancy
- Liver, heart, or kidney transplant
- Chronic liver disease
- Unable to speak English or Spanish
- The ED attending feels that cardiac catheterization is indicated
- The ED care provider intends to order a CT coronary angiogram
(*)Physicians are encouraged to use the 2007 ACC/AHA guidelines for the management of patients with NSTE ACS as a framework for this assessment.(1)
(**)These patients should generally not be considered for observation unit care: PCI / CAGB in past 6 months, multiple stents, multiple prior MIs
Contraindications to MRI: (Pacemaker, defibrillator, cerebral aneurysm clips, metallic ocular foreign body, implanted devices, claustrophobia)
Plan de estudios
Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Diagnóstico
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Único
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: 1
Cardiac MRI Protocol.
Patients will be transferred to the observation unit and undergo a stress cardiac MRI evaluation.
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During ED evaluation, patients are randomized to cardiac MRI or conventional care testing.
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Experimental: 2
Conventional care cardiac testing.
Patients will be transferred to the observation unit and undergo cardiac testing as determined by their treating physician.
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Patients in the conventional testing arm will undergo testing as determined by their treating physician.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
|---|---|
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Therapeutic efficacy: Length of stay
Periodo de tiempo: Duration of Initial Hospitalization
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Duration of Initial Hospitalization
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Medidas de resultado secundarias
Medida de resultado |
Periodo de tiempo |
|---|---|
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Therapeutic efficacy: Correct cardiovascular admission decision
Periodo de tiempo: Duration of Initial Hospitalization
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Duration of Initial Hospitalization
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Therapeutic efficacy: Non-therapeutic cardiac catheterizations
Periodo de tiempo: 30 days
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30 days
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Diagnostic thinking efficacy: change in diagnostic certainty
Periodo de tiempo: 30 days
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30 days
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Cost of index hospitalization
Periodo de tiempo: Duration of Initial Hospitalization
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Duration of Initial Hospitalization
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Colaboradores e Investigadores
Aquí es donde encontrará personas y organizaciones involucradas en este estudio.
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Chadwick Miller, M.D., WFUBMC
Publicaciones y enlaces útiles
La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.
Publicaciones Generales
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- Goldstein JA, Gallagher MJ, O'Neill WW, Ross MA, O'Neil BJ, Raff GL. A randomized controlled trial of multi-slice coronary computed tomography for evaluation of acute chest pain. J Am Coll Cardiol. 2007 Feb 27;49(8):863-71. doi: 10.1016/j.jacc.2006.08.064. Epub 2007 Feb 12.
- Christenson J, Innes G, McKnight D, Thompson CR, Wong H, Yu E, Boychuk B, Grafstein E, Rosenberg F, Gin K, Anis A, Singer J. A clinical prediction rule for early discharge of patients with chest pain. Ann Emerg Med. 2006 Jan;47(1):1-10. doi: 10.1016/j.annemergmed.2005.08.007. Epub 2005 Oct 19.
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- Heller GV, Stowers SA, Hendel RC, Herman SD, Daher E, Ahlberg AW, Baron JM, Mendes de Leon CF, Rizzo JA, Wackers FJ. Clinical value of acute rest technetium-99m tetrofosmin tomographic myocardial perfusion imaging in patients with acute chest pain and nondiagnostic electrocardiograms. J Am Coll Cardiol. 1998 Apr;31(5):1011-7. doi: 10.1016/s0735-1097(98)00057-6.
- Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE Jr, Chavey WE 2nd, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Wright RS, Smith SC Jr, Jacobs AK, Halperin JL, Hunt SA, Krumholz HM, Kushner FG, Lytle BW, Nishimura R, Ornato JP, Page RL, Riegel B; American College of Cardiology; American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 2002 Guidelines for the Management of Patients With Unstable Angina/Non ST-Elevation Myocardial Infarction); American College of Emergency Physicians; Society for Cardiovascular Angiography and Interventions; Society of Thoracic Surgeons; American Association of Cardiovascular and Pulmonary Rehabilitation; Society for Academic Emergency Medicine. ACC/AHA 2007 guidelines for the management of patients with unstable angina/non ST-elevation myocardial infarction: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Revise the 2002 Guidelines for the Management of Patients With Unstable Angina/Non ST-Elevation Myocardial Infarction): developed in collaboration with the American College of Emergency Physicians, the Society for Cardiovascular Angiography and Interventions, and the Society of Thoracic Surgeons: endorsed by the American Association of Cardiovascular and Pulmonary Rehabilitation and the Society for Academic Emergency Medicine. Circulation. 2007 Aug 14;116(7):e148-304. doi: 10.1161/CIRCULATIONAHA.107.181940. Epub 2007 Aug 6. No abstract available. Erratum In: Circulation. 2008 Mar 4;117(9):e180.
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Enlaces Útiles
Fechas de registro del estudio
Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.
Fechas importantes del estudio
Inicio del estudio
1 de marzo de 2009
Finalización primaria (Actual)
1 de septiembre de 2010
Finalización del estudio (Actual)
1 de octubre de 2011
Fechas de registro del estudio
Enviado por primera vez
24 de marzo de 2009
Primero enviado que cumplió con los criterios de control de calidad
24 de marzo de 2009
Publicado por primera vez (Estimar)
25 de marzo de 2009
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
8 de noviembre de 2017
Última actualización enviada que cumplió con los criterios de control de calidad
6 de noviembre de 2017
Última verificación
1 de abril de 2017
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- IRB00008247
- AHA Identification # 0980008N
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .
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