Ultrasound-guided bilateral transversus abdominis plane blocks in conjunction with intrathecal morphine for postcesarean analgesia.

Study Objective: To determine whether transversus abdominis plane (TAP) blocks administered in conjunction with intrathecal morphine provided superior analgesia to intrathecal morphine alone.

Design: Randomized, double-blind, placebo-controlled study.

Setting: Operating room of a university hospital.

Preoxygenation by 8 deep breaths in 60 seconds using the Mapleson A (Magill), the circle system, or the Mapleson D system.

Study Objective: To investigate the efficacy of preoxygenation by eight deep breaths in 60 seconds with the Mapleson A (Magill) system, the circle anesthesia system, or the Mapleson D system at an oxygen flow of 5 L/min or 10 L/min.

Design: Randomized, clinical study.

Setting: Operating room of a university hospital.

Excellent intubating conditions with remifentanil-propofol and either low-dose rocuronium or succinylcholine.

Purpose: The shortest time to tracheal intubation, the best intubating conditions, and the shortest duration of muscle paralysis are achieved with succinylcholine. During a lidocaine-remifentanil-propofol induction of anesthesia, we compared intubating conditions 90 s after administering low-dose rocuronium (0.3 mg .