Gases Determination in Diabetic Critical

T ranscutaneous oxygen tension(tcpO2) quantifies oxygen deliverythrough skin capillaries as a func-tion of two main physiological variables, the effective rate of skin blood flow and skin resistance to oxygen permeation, represented mainly by stratum-corneum permeability (1). TcpO2 is an accepted measure of nutritive skin perfusion (1) and predicts the therapeutic outcome in critical limb ischemia (CLI) (2), a serious complication of type 2 diabetes, a disease characterized by the coexistence of mac-ro- and microvascular alterations (3). Transcutaneous carbon dioxide tension (tcpCO2), another tensiometric parameter, is sensitive to severe limb ischemia (4