objectives this study evaluates the effects of oral tizanidine on hemodynamic responses during operations and aims to determine the appropriate propofol dosage to maintain anesthesia under bis monitoring. materials and methods a double-blind clinical trial has been performed on 70 candidates for elective abdominal surgery undergoing general anesthesia in educational hospital of ghaem, mashhad, ...

The human thermoregulatory system usually maintains core body temperature near 37 degrees C. This homeostasis is accomplished by thermoregulatory defense mechanisms such as vasoconstriction and shivering or sweating and vasodilatation. Thermoregulation is impaired during general anesthesia. Suppression of thermoregulatory defense mechanisms during general anesthesia is dose dependant and mostly...

I was interested to read the paper entitled “Effects of clonidine premedication upon postoperative shivering and recovery time in opium addicted and non-addicted patients by elective leg fracture surgeries” (1). I note that the authors administered vitamin C tablet as placebo for clonidine. Noteworthy, earlier animal studies have suggested that there is a close relationship between recovery fro...

BACKGROUND We compared clinical properties and patient satisfaction between spinal anesthesia and popliteal sciatic nerve block (PSNB) for hallux valgus surgery. METHODS Forty patients undergoing hallux valgus surgery were divided into spinal group (spinal anesthesia with 2.5 ml of 0.5% bupivacaine [n = 20]) and PSNB group (PSNB with 30 ml of 0.75% ropivacaine mixed with 10 ml of normal salin...

conclusions there is no difference between median and paramedian approaches with respect to pdph incidence; the paramedian approach is therefore recommended, especially for older patients with degenerative changes in the spine and intervertebral spaces and those who cannot take the proper position. moreover, the rate of pdph was found to be significantly higher in females than in males. results...

OBJECTIVE The aim of this study was to investigate the optimum dosage of dexmedetomidine for prevention of postanesthetic shivering. METHODS One-hundred thirty two ASA physical status I-II patients scheduled for elective laparoscopic total hysterectomy were enrolled in this randomised, placebo-controlled study. Patients were randomly allocated to receive dexmedetomidine in four groups: group ...