Fig. 3. (A ) Bispectral Index (BIS), electromyographic activity (EMG), and twitch height of the first response of train-of-four sequence recorded at the adductor pollicis muscle (twitch) trend recordings in a patient who required transitory myorelaxation for facilitation of bronchoscopy. Administration of myorelaxant induced a minimal decrease in both BIS and electromyographic activity, whereas twitch decreased to 0, assessing complete myorelaxation. No change in BIS or electromyographic activity where observed while twitch recovered. (B ) BIS, electromyographic activity, and twitch height of the first response of train-of-four sequence recorded at the adductor pollicis muscle (twitch) trend recordings in a patient who required transitory myorelaxation for facilitation of transoesophageal echocardiography. Administration of myorelaxant induced a major decrease in both BIS and electromyographic activity, whereas twitch decreased to 0, assessing complete myorelaxation. During recovery of myorelaxation, BIS and electromyographic activity recovered smoothly and earlier than twitch recovery.