Please select the arm or intervention descriptions that belong to the clinical trial below.
Title: Transfusion Triggers in Cardiac Surgery
Brief Summary: A high proportion of patients having cardiac surgery receive red cell transfusions. Yet, the investigators do not know whether transfusions are beneficial and they may be associated with harm. It is thus important to determine when a transfusion is required. The investigators will conduct a small pilot study at St. Michael's Hospital to address this issue. Patients having cardiac surgery will be allocated to one of two transfusion strategies with endpoints being compliance with the transfusion strategy and clinical outcome. The results of this study will be used to design a large definitive multicentered trial of these two transfusion strategies.


Options:
A: Arm Label: 1; Type: ACTIVE_COMPARATOR; Interventions: Procedure: Transfusion with Red Blood Cells, Biological: 1 unit of donated red blood cells | Arm Label: 2; Type: ACTIVE_COMPARATOR; Interventions: Biological: 1 unit of donated red blood cells | Intervention Type: PROCEDURE; Name: Transfusion with Red Blood Cells; Assigned to Arm(s): 1 | Intervention Type: BIOLOGICAL; Name: 1 unit of donated red blood cells; Assigned to Arm(s): 1 | Intervention Type: BIOLOGICAL; Name: 1 unit of donated red blood cells; Assigned to Arm(s): 2
B: Arm Label: Restrictive RBC Transfusion Group; Type: EXPERIMENTAL; Interventions: Biological: Restrictive RBC Transfusion | Arm Label: Liberal RBC Transfusion Group; Type: EXPERIMENTAL; Interventions: Biological: Liberal RBC Transfusion | Intervention Type: BIOLOGICAL; Name: Restrictive RBC Transfusion; Assigned to Arm(s): Restrictive RBC Transfusion Group | Intervention Type: BIOLOGICAL; Name: Liberal RBC Transfusion; Assigned to Arm(s): Liberal RBC Transfusion Group
C: Arm Label: Liberal (10 g/dL) Transfusion Strategy; Type: EXPERIMENTAL; Interventions: Biological: Liberal (10 g/dL) Transfusion Strategy | Arm Label: 2; Type: ACTIVE_COMPARATOR; Interventions: Biological: Restrictive (Symptomatic) Transfusion Strategy | Intervention Type: BIOLOGICAL; Name: Liberal (10 g/dL) Transfusion Strategy; Assigned to Arm(s): Liberal (10 g/dL) Transfusion Strategy | Intervention Type: BIOLOGICAL; Name: Restrictive (Symptomatic) Transfusion Strategy; Assigned to Arm(s): 2
D: Arm Label: Epo1 and TT10; Type: ACTIVE_COMPARATOR; Interventions: Drug: recombinant human erythropoietin, rhEpo | Arm Label: Epo1 and TT7; Type: ACTIVE_COMPARATOR; Interventions: Drug: recombinant human erythropoietin, rhEpo | Arm Label: Epo2 and TT10; Type: ACTIVE_COMPARATOR; Interventions: Drug: recombinant human erythropoietin, rhEpo | Arm Label: Epo2 and TT7; Type: ACTIVE_COMPARATOR; Interventions: Drug: recombinant human erythropoietin, rhEpo | Arm Label: Placebo and TT10; Type: PLACEBO_COMPARATOR; Interventions: Other: placebo | Arm Label: Placebo and TT7; Type: PLACEBO_COMPARATOR; Interventions: Other: placebo | Intervention Type: DRUG; Name: recombinant human erythropoietin, rhEpo; Assigned to Arm(s): Epo1 and TT10, Epo1 and TT7, Epo2 and TT10, Epo2 and TT7 | Intervention Type: OTHER; Name: placebo; Assigned to Arm(s): Placebo and TT10, Placebo and TT7

Answer: A