Methods: In a randomized, double-blinded, placebo-controlled trial, 144 ASA I-II patients, scheduled for elective surgery under general anesthesia were randomly assigned to 1 of 4 groups. Group I received 2 ml of plain NSS, group II received lidocaine 40 mg, group III received thiopental 0.5mg/kg and group IV received metoclopramide 10 mg. All pretreatment drugs were made into 2 ml solutions and were given IV with manual venous occlusion of 1 minute. Propofol was administered after release of venous occlusion. pain was then assessed using a four-point scale and face pain scale during propofol injection. Results: 36 patients (100%) complained of pain in the control group compared with 20 (56%), 22 (61%) and 23 (64%) in the lidocaine, thiopental and metoclopramide groups, respectively (p<0.05). there was no significant difference among the 3 test solution with regards to severity of pain. Nor were there any noted complications 24 hours postoperatively on the injection site. Conclusion: Thiopental and metoclopramide are equally effective as lidocaine in reducing pain during propofol injection when used with manual venous occlusion.
Human ; LIDOCAINE ; THIOPENTAL ; METOCLOPRAMIDE ; PROPOFOL ; PAIN MANAGEMENT ; ANESTHESIA