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Introduction: Many patients because of ischemic heart diseases, cerbral or pulmonary diseases are not appropriate candidates for general anesthesia in upper limb surgeries. Intravenous regional anesthesia (IVRA) is one of the anesthetic procedures for these patients. The aim of this study was to compare the effects of adding Pancronium and Fentanly to Lidocaine during IVRA.
Materials and Methods: In a single-blind clinical trial investigation, 46 patients-who were candidated for hand surgeries-were studied. The subjects were randomly classified into two groups. The first group who used 38 cc Lidocaine 0.5% and 2 cc sterile water (control group) and the second group who used 38 cc Lidocaine 0.5% besides 50  mgr Fentanyl and 0.5 mgr Pancronium (trial group) for sensory and motor blacking. Data analysis was performed by t-test through SPPS 10 software.
Results: The average time for storing of sensory and motor block in trial group was significantly faster than control group. Additionaly, the average time for starting of sensory and motor block in control group was significantly lower than trial group.
Conclusion: This study revealed that adding of Fentanyl and Pancronium causes better motor and sensory block and provide better relaxation for muscles during surgery.

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Introduction: Postoperative hypothermia is physiologically stressful by elevating blood pressure, heart rate and plasma catecholamine concentration. This study conducted to evaluate the effects of intravenous fluids temperature on perioperative hemodynamic situation. Materials and Methods: This was a randomized clinical trial study Perioperative pulse rate, blood pressure, intraoperative esophageal and skin temperature were measured in 60 volunteer patients undergoing orthopedic surgeries subjects randomly divided into two groups according to intraoperative IV fluids management. In 30 patients (hypothermia group) all IV fluids infused were at room temperature. In the other 30 patients (normothermia group) all IV fluids were warmed using and dry IV fluid warmer. Results: The core and skin temperature of hypothermia and normothermia group decreased significantly from induction of anesthesia toward end of surgery but its reduction was more in hypothermia group (P<0.005). Postoperative mean arterial blood pressure increased significantly more in hypothermia group versus normothermia group (P<0.005). Shivering was observed in 21 of 30 hypothermia and 11 of 30 normothermia group (p<0.005) and recovery time was significantly lower in normothermia group (36±5 vs. 26±3 min, P<0.005). Conclusion: Infusion of warm fluids helps to reduce the variation of postoperative mean arterial blood pressure, core and skin temperature, occurrence of shivering and recovery time.

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Background: Due to high prevalence of vitrectomy surgery, and the importance of anesthetic technique in conducting an uncomplicated surgery, we decided to do this study.

Materials and Methods: This prospective randomized study was conducted on 80 patients 40-80 years old candidating deep vitrectomy sugery under general anesthesia that were categorized into II and III Class by American Society of Anesthesiologist (ASA). Patients were randomly allocated to two groups of 40 members. Anesthesia was induced in both groups in the same manner. For maintaining anesthesia, patients from I group receiVed 1.2% isofluran with 50% O2 in air at 4L/min and infusion of remifentanil (0.1 mg.kg-1.min-1). But in the P group, we used propofol up to 10mg/kg /hr with infusion of remifentanyl. Propofol and isoflurane in fusion was discontinued with the last surgical stitches, but remifentanil infusion continued in both groups until the eye was covered with shield. Hemodynamic variables were recorded just before the induction of anesthesia and in different time intervals till discharging of the patients from the recovery room.  Then, data were compared.

Results: Results showed that there is a significant changes in propofol group compared to isofluran in deep vitrectomy surgery operations.

Conclusion: Hemodynamic changes are more significant in maintaining propofol anesthesia when compared with isoflurane.