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Vital signs and major events in the case of a 32-year-old male patient undergoing arthroscopic surgery of the right knee under spinal anesthesia for 402 minutes. a. spinal anesthesia; b. Administration of the first 5 mg of midazolam; c. Skin incision; d. Administration of additional 4 mg of midazolam; e. Application of monitored anesthesia care. HR, heart rate; NiBP, non-invasive blood pressure; SpO2, peripheral oxygen saturation.
