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Should the Vasoactive Inotropic Score be a Determinant for Early Initiation of VA ECMO in Postcardiotomy Cardiogenic Shock?
Journal of Cardiothoracic and Vascular Anesthesia 2023 December 2
OBJECTIVES: The authors investigated the role of early venoarterial extracorporeal membrane oxygenation (VA ECMO) implantation in patients with postcardiotomy cardiogenic shock (PCS) on mortality and morbidity when integrating vasoactive-inotropic score (VIS) and type of catecholamine support.
DESIGN: A retrospective, multicenter, observational study with propensity-weight matching.
SETTING: Four university-affiliated intensive care units.
PARTICIPANTS: Patients with PCS in the operating room.
INTERVENTIONS: Early VA ECMO support.
MEASUREMENTS AND MAIN RESULTS: Of 2,742 patients screened during the study period, 424 (16%) patients were treated with inotropic drugs, and 75 (3%) patients were supported by VA ECMO in the operating room. Patients supported by VA ECMO had a higher use of vasopressor and inotropic drugs, with a higher VIS score. After propensity matching (integrating VIS and catecholamines type), mortality (56% v 20%, p < 0.001) and morbidity (cardiac, renal, transfusion) were higher in patients supported by VA ECMO than in a matched control group.
CONCLUSIONS: When matching integrated the pre-ECMO VIS and the type of catecholamines, VA ECMO remained associated with high mortality and morbidity, suggesting that VIS alone should not be used as a main determinant of VA ECMO implantation.
DESIGN: A retrospective, multicenter, observational study with propensity-weight matching.
SETTING: Four university-affiliated intensive care units.
PARTICIPANTS: Patients with PCS in the operating room.
INTERVENTIONS: Early VA ECMO support.
MEASUREMENTS AND MAIN RESULTS: Of 2,742 patients screened during the study period, 424 (16%) patients were treated with inotropic drugs, and 75 (3%) patients were supported by VA ECMO in the operating room. Patients supported by VA ECMO had a higher use of vasopressor and inotropic drugs, with a higher VIS score. After propensity matching (integrating VIS and catecholamines type), mortality (56% v 20%, p < 0.001) and morbidity (cardiac, renal, transfusion) were higher in patients supported by VA ECMO than in a matched control group.
CONCLUSIONS: When matching integrated the pre-ECMO VIS and the type of catecholamines, VA ECMO remained associated with high mortality and morbidity, suggesting that VIS alone should not be used as a main determinant of VA ECMO implantation.
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