NCT05699005

Individualized or Conventional Transfusion Strategies During Peripheral VA-ECMO

Comparison of an Individualized Transfusion Strategy to a Conventional Strategy in Patients Undergoing Peripheral Veno-arterial ECMO for Refractory Cardiogenic Shock: a Randomized Controlled Trial - ICONE

• Status: Unknown
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 238 (estimated)
• Sponsor: University Hospital, Lille · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This multicenter randomized controlled trial compare two transfusion strategies of red blood cells transfusion in patients supported by veno-arterial extracorporeal membrane oxygenation for refractory cardiogenic shock. An individualized transfusion strategy based on ScVO2 level, is compared to a conventionnal strategy based on predefined hemoglobin threshold. The primary endpoint is the consumption of packed red blod cells, secondary endpoints are subgroup analysis, mortality, morbidity, and cost-effectiveness

Detailed description

Peripheral VA-ECMO is the mainstay of mechanical circulatory support in refractory cardiogenic shock. This treatment is associated with a high consumption of packed red blood cells (PRBCs), which can reach 1 to 3 units of PRBCs per day of support. The main reasons for such a high consumption of PRBCs are the very frequent hemorrhagic complications and the prevalence of anemias not directly related to the hemorrhagic episodes. These anemias are frequent during VA-ECMO support owing to hemolysis, hemodilution, previous bleeding episodes, thrombosis, etc. In order to restore, maintain, or increase oxygen delivery (DO2) to peripheral organs, RGCs are often performed when anemia is observed. Several studies have reported an association between transfusion of these PRBCs with morbidity and mortality in this ECMO setting. There is no appropriate strategy to reduce PRBC consumption, taking into account other determinants of DO2. In addition, there is currently no validated or consensus hemoglobin threshold to guide transfusion in this specific population. Furthermore, this predefined threshold-based approach may be inappropriate in the setting of VA-ECMO due to differences in DO2 requirements between patients based on their etiology, disease severity, and ECMO modality. In addition, large variations in DO2 can be observed in the same patient and between ECMO settings. Therefore, a more individualized strategy guided by a DO2 surrogate, ScVO2, may be more appropriate in this population. This ScVO2 approach has recently been shown to be associated with reduced PRBCs in two randomized controlled trials in cardiac surgery patients. The objective of this multicenter randomized controlled trial is to compare two red cell transfusion strategies in patients receiving extracorporeal veno-arterial membrane oxygenation for refractory cardiogenic shock. An individualized transfusion strategy based on ScVO2 level is compared with a conventional strategy based on a predefined hemoglobin threshold. The primary endpoint is red blood cell consumption, the secondary endpoints are subgroup analysis, mortality, morbidity, and cost-effectiveness.

Conditions

• Cardiogenic Shock
• Extracorporeal Membrane Oxygenation
• Transfusion Related Complication
• Anemia
• Oxygen Delivery

Interventions

Type	Name	Description
DRUG	Packed Red Blood Cells (PRBCs)	Patient will recieve PRBCs transfusion only in case of ScVO2 level\<65% after assessment of patient for optimisation of SaO2 targeting 100%, volume status, ECMO flow (increase to 20% in relevant), pain, anxiety and fever (body temperature \>38°3). In both groups transfusion may be performed in case massive bleeding according to local protocols, STEMI, Hyperlactatemia \>4 that can be related to oxygen demand and supply DO2/VO2 ratio impairement, in all groups, transfusion should be performed in case of hemolobin level \<7g/dL or worsening of neurological condition (Increase in Neurological SOFA component of 1 and more) related to DO2/VO2 impairement.

Timeline

• Start date: 2023-09-18
• Primary completion: 2025-09-18
• Completion: 2025-12-18
• First posted: 2023-01-26
• Last updated: 2024-04-04

Locations

1 site across 1 country: France