الفهرس 
Intravenous regional anesthesia
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Abstract
SUMMARY Intravenous regional anesthesia (IVRA) is a technically simple, reliable and cost-effective method of regional anesthesia for short operative procedures of the extremities. It has disadvantages that include local anesthetic (LA) toxicity, slow onset poor muscle relaxation, tourniquet pain, and the inability to provide prolonged postoperative analgesia. The ideal IVRA solution should have the following features: rapid onset, reduced dose of LA, reduced tourniquet pain, and prolonged post deflation analgesia. Different additives such as opioids, non-steroidal antiinflammatory drugs (NSAIDs), dexmedetomidine, and muscle relaxants have been combined with LAs to improve block quality, prolong postdeflation analgesia and decrease tourniquet pain. Our assessment included the study of mean arterial blood pressure (MAP), heart rate (HR), peripheral oxygen saturation (SpO2), sensory and motor block onset and recovery times, onset time of tourniquet pain and number of patients complaining from it, intra-operative and 24 hours postoperative analgesic requirements, postoperative VAS score and first time of analgesic requirement, patient satisfaction, surgeon opinion and complications. This study was designed as a prospective, double-blinded, randomized and controlled clinical trial. The 100 Patients were randomely divided into four equal groups: Lidocaine group (Gp L): 40 cc of 3mg/kg of 0.5% lidocaine diluted in normal saline (0.9 % NaCl) was used for administering IVRA.