Figure 1. Representative records illustrating the relation obtained in study 1 between tonometry blood pressure and skin blood flow on laser-Doppler flowmeter (upper panel, control group patient; lower panel, monitored group patient). At the arrows, the skin vasomotor reflex (SVmR) was evoked by an electrostimulus. L = laryngoscopy; TBP = tonometric blood pressure; LD-SBF = skin blood flow on laser-Doppler flowmeter.