- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT00123981
The Danish On-pump, Off-pump Randomization Study (DOORS)
The Impact of Avoiding Cardiopulmonary By-pass During Coronary Artery Bypass Surgery for Ischemic Heart Disease in Elderly Patients: The Danish On-pump, Off-pump Randomization Study (DOORS)
Background: Coronary artery bypass grafting (CABG) can be performed either with or without the use of cardiopulmonary bypass (CPB) to obtain myocardial re-vascularisation. The investigators hypothesize that CABG without the use of CPB may reduce the risk of perioperative death, stroke, myocardial infarction and other serious complications.
The aim of the present study is to compare the incidence of complications and the clinical efficacy of CABG with and without the use of CPB in elderly patients.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
Conventional coronary artery bypass grafting (CCABG) using cardiopulmonary bypass has for decades been applied to obtain myocardial re-vascularisation and, hence, improved quality of life and survival. It does, however, bear a risk of death, stroke, myocardial infarction and other serious complications.
During recent years, an equivalent operation performed on the beating heart without cardiopulmonary bypass (off-pump coronary artery bypass grafting, OPCAB) has gained popularity helped by the advent of mechanical stabilization devices and improved surgical techniques. Observational studies suggest that this technique is associated with a lower incidence of stroke, per operative arrhythmias and even mortality than conventional CCABG. This is especially the case in elderly patients and patients with significant co-morbidity.
Only few randomised, controlled trials have been conducted and most of these included mainly or only low-risk, relatively young patients. These studies have documented the safety and efficacy of OPCAB compared with CCABG, but none of the trials has had the statistical strength to determine whether the rate of serious complications is lower after OPCAB operations. One recent study found graft patency to be significantly lower after OPCAB than after CCABG operations.
The investigators find that there is a need of a larger scale randomised trial to compare the results of CCABG and OPCAB operations, especially in elderly patients. This patient group is poorly represented in earlier randomised trials, whereas observational studies and theoretical considerations imply that they may benefit the most from avoiding cardiopulmonary bypass.
Aims: Primarily, to compare the incidence of death, stroke and myocardial infarction after CCABG and OPCAB procedures in a population of elderly patients. Furthermore, to compare quality of life and graft patency, and cost- effectiveness after CCABG and OPCAB.
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
-
-
-
Aarhus, Dinamarca, 8200
- Dept. of Cardiothoracic and Vascular Surgery, Skejby Sygehus, Aarhus University Hospital
-
-
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- Age seventy years or above
- Admitted for first time coronary artery bypass operation
Exclusion Criteria:
- Given information cannot be understood
- Aortic crossclamping not safe due to calcification
- Preoperative cardiac conditions demanding cardiopulmonary bypass
- Re-do cardiac surgery
- Patients requiring operation within the same day after conference
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
---|---|
Comparador activo: CCABG
Coronary artery bypass surgery using cardiopulmonary bypass
|
|
Experimental: OPCAB
Coronary artery bypass surgery NOT using cardiopulmonary bypass
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
---|---|
A combined endpoint of death + stroke + myocardial infarction within 30 days from operation
Periodo de tiempo: 30 days
|
30 days
|
Medidas de resultado secundarias
Medida de resultado |
Periodo de tiempo |
---|---|
A combined endpoint of death + stroke + myocardial infarction during follow-up
Periodo de tiempo: 3 years
|
3 years
|
Patency of bypass grafts assessed by coronary angiography 6 months after the operation
Periodo de tiempo: 6 months
|
6 months
|
Total mortality and cardiac mortality during follow-up
Periodo de tiempo: 3 years
|
3 years
|
Need of new intervention for cardiac angina during follow-up
Periodo de tiempo: 3 years
|
3 years
|
Quality of life assessed by MOS SF-36 and EuroQol questionnaires 6 months and 3 years after the operation
Periodo de tiempo: 6 months and 3 years
|
6 months and 3 years
|
Total hospital costs and costs of public care provided 6 months and 3 years after the operation and difference in costs per quality adjusted life year
Periodo de tiempo: 6 months and 3 years
|
6 months and 3 years
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Kim C Houlind, MD, PhD, Aarhus University Hospital
- Silla de estudio: Poul E Mortensen, MD, Odense University Hospital
Publicaciones y enlaces útiles
Publicaciones Generales
- Houlind KC, Kjeldsen BJ, Terp KA, Madsen SN, Schmidt TA, Holme SJ, Mortensen PE. [Coronary artery bypass surgery without the use of a heart-lunch machine]. Ugeskr Laeger. 2005 May 9;167(19):2037-41. No abstract available. Danish.
- Houlind K, Fenger-Gron M, Holme SJ, Kjeldsen BJ, Madsen SN, Rasmussen BS, Jepsen MH, Ravkilde J, Aaroe J, Hansen PR, Hansen HS, Mortensen PE; DOORS Study Group. Graft patency after off-pump coronary artery bypass surgery is inferior even with identical heparinization protocols: results from the Danish On-pump Versus Off-pump Randomization Study (DOORS). J Thorac Cardiovasc Surg. 2014 Nov;148(5):1812-1819.e2. doi: 10.1016/j.jtcvs.2014.02.024. Epub 2014 Feb 8.
- Houlind K, Kjeldsen BJ, Madsen SN, Rasmussen BS, Holme SJ, Nielsen PH, Mortensen PE; DOORS Study Group. On-pump versus off-pump coronary artery bypass surgery in elderly patients: results from the Danish on-pump versus off-pump randomization study. Circulation. 2012 May 22;125(20):2431-9. doi: 10.1161/CIRCULATIONAHA.111.052571. Epub 2012 Apr 20.
- Houlind K, Kjeldsen BJ, Madsen SN, Rasmussen BS, Holme SJ, Schmidt TA, Haahr PE, Mortensen PE; DOORS study group. The impact of avoiding cardiopulmonary by-pass during coronary artery bypass surgery in elderly patients: the Danish On-pump Off-pump Randomisation Study (DOORS). Trials. 2009 Jul 4;10:47. doi: 10.1186/1745-6215-10-47.
Enlaces Útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- DTS-0001
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. .
Ensayos clínicos sobre Enfermedad isquémica del corazón
-
Region SkaneInscripción por invitaciónInsuficiencia cardíaca New York Heart Association (NYHA) Clase II | Insuficiencia cardíaca New York Heart Association (NYHA) Clase IIISuecia
-
Medical University of BialystokInstitute of Cardiology, Warsaw, Poland; Medical University of Lodz; Poznan University... y otros colaboradoresAún no reclutandoInsuficiencia Cardíaca Sistólica | Insuficiencia cardíaca con fracción de eyección reducida | Insuficiencia cardíaca Clase IV de la New York Heart Association | Insuficiencia cardíaca Clase III de la New York Heart AssociationPolonia
-
Novartis PharmaceuticalsTerminadoPacientes que completaron con éxito el período de tratamiento de 12 meses del estudio principal (receptores de Novo Heart) que estaban interesados en recibir tratamiento con EC-MPS
-
University of WashingtonAmerican Heart AssociationTerminadoInsuficiencia cardíaca, congestiva | Alteración mitocondrial | Insuficiencia cardíaca Clase IV de la New York Heart AssociationEstados Unidos