Painless injection of propofol: pretreatment with ketamine vs thiopental, meperidine, and lidocaine.

Propofol, a commonly used anesthetic, often causes pain on injection. Several methods have been described to reduce this pain, however, complete inhibition has not been achieved. Our randomized, placebo controlled, double blind study has been conducted to compare the analgesic efficacy of iv pretreatment of ketamine, meperidine, thiopental, lidocaine to minimize the injection pain of propofol.

Comparison of hyperbaric ropivacaine and hyperbaric bupivacaine in unilateral spinal anaesthesia.

Background: To evaluate the clinical efficacy and safety of unilateral spinal anaesthesia with 0.66% hyperbaric ropivacaine compared with 0.5% hyperbaric bupivacaine for arthroscopic knee surgery.

Comparison of ropivacaine and bupivacaine for intrathecal anesthesia during outpatient arthroscopic surgery.

Study Objective: To compare the effects of intrathecal ropivacaine with bupivacaine in a dose ratio of 2:1 for outpatient arthroscopic knee surgery.

Design: Randomized, single-blinded study.

Setting: University-affiliated hospital.

Does dexamethasone improve the quality of intravenous regional anesthesia and analgesia? A randomized, controlled clinical study.

We investigated the anesthetic and analgesic effectiveness of adding dexamethasone to lidocaine for IV regional anesthesia (IVRA). Seventy-five patients undergoing ambulatory hand surgery were randomly assigned to one of three groups: group L received 3 mg/kg lidocaine, group LD received 3 mg/kg lidocaine + 8 mg dexamethasone, and group LDc received 3 mg/kg lidocaine for IVRA and 8 mg dexamethasone IV to the nonsurgical arm. IVRA was established using 40 mL of a solution.

Does using the bispectral index (BIS) during craniotomy affect the quality of recovery?

One of the aims of neuroanesthesia is to provide early postoperative recovery and neurologic examination in patients undergoing supratentorial surgery. Our aim was to investigate the role of using the bispectral index (BIS) in recovery from anesthesia and altering drug administration in patients undergoing craniotomy. Fifty American Society of Anesthesiologists' (ASA) physical status I-II patients undergoing craniotomy were included in the study.

Intrathecal ropivacaine versus ropivacaine plus fentanyl for out-patient arthroscopic knee surgery.

We evaluated the effects of low-dose intrathecal ropivacaine with or without fentanyl for arthroscopic knee surgery. Fifty patients were randomized in equal groups to receive an intrathecal solution (3 ml) containing either 10 mg isobaric ropivacaine or 8 mg isobaric ropivacaine plus 25 pg fentanyl. Complete motor blockade occurred in 22 patients (88%) in both groups.