fa مقایسه اثر مخلوط مپریدین 5% و لیدوکائین 5% با لیدوکائین 5% بر طول مدّت بی‌دردی و کاهش فشار خون بعد از عمل سزارین General پژوهشي Research Article Background and Aim: In patients candidate for cesarean section one of anesthesia methods such as spinal or general is selected. There are many drugs for spinal anesthesia. The aim of the present study was to compare a combination of meperidine 5% + lidocaine 5% with single lidocaine 5% for spinal anesthesia in non emergency cesarean patients.   Materials and Methods: This clinical trial double blind study was done on fifty full-term pregnant women, with the physical status I or II, presenting for non-emergency cesarean selection under spinal anesthesia who were randomly divided into two equal groups .Fifteen minutes before entering the operating room, all patients received 10 mg IV metoclopramide. In patients of the first group a combination of meperidine 5% and lidocaine 5% and for the second group hyperboric lidocaine 5% was administered. Variables such as period of analgesia, hemodynamic changes, nausea, vomiting, etc. were measured. The obtained data was analysed by means of SPSS software, t-test, and c 2 at the significant level P Anesthesia,Spinal,Cesarean Section,Lidocaine,Meperidine 10 15 http://mcj.bums.ac.ir/browse.php?a_code=A-10-1-507&slc_lang=fa&sid=1 Maliheh Zangouei ملیحه زنگوئی 10031947532846004226 10031947532846004226 No Anesthesiologist, Birjand University of Medical Sciences, Birjand, Iran متخصص بیهوشی، دانشگاه علوم پزشکی بیرجند، ایران Mahboubeh Zangouei محبوبه زنگوئی 10031947532846004227 10031947532846004227 Yes Assistant Professor, Department of Gynecology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran. Email: afshan_zn@yahoo.com استادیار گروه زنان، دانشکده پزشکی، دانشگاه علوم پزشکی بیرجند، ایران. تلفن: 0561443041-9 پست الکترونیک: afshan_zn@yahoo.com Reza Zangouei رضا زنگوئی 10031947532846004228 10031947532846004228 No Pharmacologist, Instructor, Islamic Azad University, Birjand, Iran داروساز و عضو هیات علمی دانشگاه آزاد اسلامی، واحد بیرجند، ایران Maryam Toliat مریم تولیت 10031947532846004229 10031947532846004229 No Instructor, Faculty of Para-medicine, Birjand University of Medical Sciences, Birjand, Iran کارشناس ارشد پرستاری، عضو هیات علمی دانشکده پیراپزشکی، دانشگاه علوم پزشکی بیرجند، ایران