Maisa K.  Abu Kamar, Ghazi S.  Aldehayat, Adnan  A. Abu Kamar, 
    The Effect of Tramadol on Decreasing Postoperative Shivering,
    Research Journal of Medical Sciences,
    Volume 13,Issue 6,
    2019,
    Pages 115-117,
    ISSN 1815-9346,
    rjmsci.2019.115.117,
    (https://makhillpublications.co/view-article.php?doi=rjmsci.2019.115.117)
    Abstract: Shivering is a well-recognized postoperative complication. The objective of the current study is to
evaluate the role of tramadol in decreasing post anesthetic shivering. About 80 patients ASA I and II adult
patients, aged between 18-70 years, undergoing general anesthesia were enrolled in this prospective study.
They were divided into 2 groups, group 1 (n = 40) received 1 mg/kg of tramadol towards the end of the
operation while group 2 (n = 40) received normal saline. Shivering was evaluated during the postoperative
period. No difference among patients regarding patient characteristics. In group 1, postoperative shivering was
effectively prevented in 36 (90%) and 38 (95%) patient at 15 and 30 min, respectively and none of patients
shivered at grade = 3 and grade = 2. However, in group 2, the incidence of shivering was 50 and 57.5%
at 15 min and 30, respectively, the difference between 2 groups was statistically significant (p<0.05). Tramadol,
when given at the end of the operation can decrease the incidence of shivering.
    Keywords: Tramadol;shivering;postoperative;regarding;characteristics;anesthesia