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Myocardial Ischemia and Transfusion

Overview

Información sobre este estudio

The purpose of this study is to compare two red blood cell transfusion strategies (liberal and restrictive) for patients who have had an acute myocardial infarction and are anemic.

Elegibilidad para la participación

Los requisitos de elegibilidad de los participantes incluyen la edad, el sexo, el tipo y el estadio de la enfermedad, y los problemas de salud o tratamientos previos. Las pautas difieren de un estudio a otro e identifican quiénes pueden o no pueden participar. No hay garantía de que cada persona elegible que desee participar en un ensayo se inscribirá. Comunícate con el equipo del estudio para analizar la elegibilidad del estudio y la posible participación.

Inclusion Criteria:

  • 18 years of age or older
  • Either ST segment elevation myocardial infarction or Non ST segment elevation myocardial infarction consistent with the 3rd Universal Definition of Myocardial Infarction criteria that occurs on admission or during the index hospitalization
  • Hemoglobin concentration less than 10 g/dL at the time of random allocation

Exclusion Criteria:

  • Uncontrolled acute bleeding at the time of randomization defined as the need for uncrossed or non-type specific blood
  • Decline blood transfusion
  • Scheduled for cardiac surgery during the current admission
  • Receiving only palliative treatment
  • Known that follow-up will not be possible at 30 days
  • Previously participated in MINT
  • Currently enrolled in a competing study that interferes with the intervention or follow-up of MINT or enrolled in a competing study that has not been approved by the local Institutional Review Board.

Sedes participantes de Mayo Clinic

Los estatus de los estudios cambian con frecuencia. Comunícate con el equipo del estudio para obtener la información más actualizada acerca de la posibilidad de participar.

Sede de Mayo Clinic Estatus Contacto

Rochester, Minn.

Investigador principal de Mayo Clinic

Gregory Barsness, M.D.

Cerrado para la inscripción

Contact information:

Ryan Veldhuizen

(507)255-0630

Veldhuizen.Ryan@mayo.edu

More information

Publicaciones

  • A strategy of administering a transfusion only when the hemoglobin level falls below 7 or 8 g per deciliter has been widely adopted. However, patients with acute myocardial infarction may benefit from a higher hemoglobin level. Read More on PubMed
  • Accumulating evidence from clinical trials suggests that a lower (restrictive) hemoglobin threshold (<8 g/dL) for red blood cell (RBC) transfusion, compared with a higher (liberal) threshold (≥10 g/dL) is safe. However, in anemic patients with acute myocardial infarction (MI), maintaining a higher hemoglobin level may increase oxygen delivery to vulnerable myocardium resulting in improved clinical outcomes. Conversely, RBC transfusion may result in increased blood viscosity, vascular inflammation, and reduction in available nitric oxide resulting in worse clinical outcomes. We hypothesize that a liberal transfusion strategy would improve clinical outcomes as compared to a more restrictive strategy. Read More on PubMed
  • More than 100 million units of blood are collected worldwide each year, yet the indication for red blood cell (RBC) transfusion and the optimal length of RBC storage prior to transfusion are uncertain. Read More on PubMed
  • Prior trials suggest it is safe to defer transfusion at hemoglobin levels above 7 to 8 g/dL in most patients. Patients with acute coronary syndrome may benefit from higher hemoglobin levels. Read More on PubMed

Otros temas en investigación

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CLS-20315029

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