BACKGROUND Femoral nerve blockade (FNB) provides effective postoperative analgesia in children undergoing arthroscopic knee surgery as evidenced by their opioid-sparing effects and decreased postoperative pain scores. Increasing the local anesthetic concentration in peripheral nerve blockade for adults undergoing orthopedic surgery has been shown to be beneficial, increasing block success rate,...

PURPOSE To compare the use of ropivacaine versus bupivacaine for 3-in-1 block during total knee arthroplasty (TKA) in terms of efficacy and safety (lack of toxicity). METHODS 14 men and 26 women aged 58 to 77 (median, 70) years who had the American Society of Anesthesiologists (ASA) grades I to III physical status were randomised to receive ropivacaine (n=20) or bupivacaine (n=20) of a concen...

OBJECTIVES The primary objective of this study was to investigate whether dexmedetomidine could potentiate the analgesic efficacy of ropivacaine, when added to ropivacaine for wound infiltration in patients undergoing open gastrectomy. METHODS Fifty patients scheduled for open gastrectomy were divided into 2 equal groups that were received wound infiltration using 20 mL 0.3% ropivacaine plus ...

Block of hKv1.5 channels by bupivacaine is stereoselective, with (R)-(+)-bupivacaine being 7-fold more potent than (S)-(-)-bupivacaine. The study of the effects of chemically related enantiomers on these channels may help to elucidate the structural determinants of stereoselective hKv1.5 channels block by local anesthetics. In this study, we analyzed the effects of (R)-(+)-ropivacaine, (R)-(+)-...

BACKGROUND Dexmedetomidine is an α-2-receptor agonist which might be used as an additive to local anaesthetics for various regional anaesthetic techniques. We therefore designed this prospective, double-blinded, controlled volunteer study to investigate the effects of dexmedetomidine as an adjuvant to ropivacaine on peripheral nerve block. METHODS Ultrasound-guided ulnar nerve block (UNB) was...

Background: Epidural block provides surgical anesthesia as well as post-operative analgesia in patients undergoing lower abdominal surgeries. Ropivacaine, is safe and effective for regional anesthetic techniques. Dexmedetomidine, alpha-2 agonist, as adjuvant to local anesthetic is reported to have synergistic effect for epidural anesthesia. The present study was designed with the aim to evaluat...

BACKGROUND The transversus abdominis plane (TAP) block is a regional anaesthetic technique that blocks abdominal wall somatic afferent nerves. We conducted a prospective observational study to evaluate the venous plasma concentrations of ropivacaine during a continuous TAP infusion. METHODS Twenty patients who were planned to undergo intra-abdominal cavity surgery requiring a mid-line laparot...

OBJECTIVES We aimed to determine the hemodynamic effects and postoperative pain control quality of ropivacaine and ketamine addition to ropivacaine in children undergoing inguinal hernia repair with caudal anesthesia. METHODS A total of 45 patients (1-4 years) scheduled to undergo inguinal hernia repair were studied. Anesthesia was induced with sevoflurane in O2/N2O and vecuronium was adminis...

BACKGROUND Ischaemia is one of the causative mechanisms of peripheral nerve injury, a documented complication of regional anaesthesia. Local anaesthetics per se and/or vasopressor adjuvants may account for changes in peripheral nerve blood flow. The aim of this study was to test the effects of levobupivacaine and ropivacaine in a rat sciatic nerve model with respect to local blood flow and hist...

AIM To prospectively evaluate the effect of local wound infiltration with ropivacaine on postoperative pain relief and stress response reduction after open hepatectomy. METHODS A total of 56 patients undergoing open hepatectomy were randomly divided into two groups: a ropivacaine group (wound infiltration with ropivacaine solution) and a control group (infiltration with isotonic saline soluti...