2.3. Anesthesia Process
In the operating room, the patient was attached to a standard monitor, recording electroencephalogram, noninvasive blood pressure, and saturation.Preoxygenation was performed for 4 minutes with 2 mg/kg fentanyl administered intravenously (IV), 2 minutes of 2 mg/kg propofol and 0.5 mg/kg rocuronium. The patient was then intubated and connected to an anesthesia machine. The anesthesia was maintained by isoflurane 1 MAC, muscle relaxants according to monitoring (3-4 mg/kg fentanyl). Additional monitoring of end-tidal carbon dioxide, body temperature, anesthetic gases, and breathing parameters was conducted after intubation. The administration of the various peripheral blocks was done after the patient was connected to the anesthesia machine. The blocks included 0.25% Marcaine (30 ml) and 2 mg dexamethasone. After surgery and extubation, the patient was transferred to the recovery unit.