CIRCULATION STUDIO FIELD GUIDE
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Interventions
Every drug, maneuver, device and electrical intervention.
V-A ECMO
Find V-A ECMO in Mechanical support. Venous drainage, extracorporeal oxygenation and arterial return support systemic perfusion. Peripheral return increases LV afterload; LV distension and pulmonary edema may require unloading.
Valsalva
Find Valsalva in Maneuvers. Forced expiration against resistance raises intrathoracic pressure. I: transient BP rise. II: reduced venous return with reflex responses. III: release-related BP dip. IV: recovery/overshoot; severe HF may blunt the usual pattern.
Vasopressin
Find Vasopressin in Vasopressors. V₁-mediated vasoconstriction independent of adrenergic receptors.