The results showed that , compared with placebo , pethidine , fentanyl , dexmedetomidine , and sufentanil significantly reduced the incidence of perioperative shivering .
In addition , compared with sufentanil , fentanyl showed no impact on haemodynamic stability and the incidence of pruritus .
CONCLUSION Pethidine , fentanyl , dexmedetomidine , and sufentanil appear to be effective for preventing perioperative shivering in puerperae undergoing cesarean sections .
Considering the risk-benefit profiles of the included neuraxial adjuvants , fentanyl is probably the optimal choice
BACKGROUND Perioperative shivering is clinical ly common during cesarean sections under neuraxial anesthesia , and several neuraxial adjuvants are reported to have preventive effects on it .
However , the results of current studies are controversial and the effects of these neuraxial adjuvants remain unclear .
AIM To evaluate the effects of neuraxial adjuvants on perioperative shivering during cesarean sections , thus providing an optimal choice for clinical application .
Intrathecal fentanyl for prevention of shivering in cesarean section.
OBJECTIVES The aim of this r and omized double-blind study was to investigate whether 20 microg of intrathecally administered fentanyl would influence the incidence and severity of shivering in patients undergoing cesarean section . MATERIAL AND METHOD Sixty healthy patients scheduled for cesarean section under spinal anesthesia using 2.2 ml of 0.5 % hyperbaric bupivacaine with 0.2 ml of morphine 0.2 mg , were r and omly allocated to receive an additional 0.4 ml of fentanyl 20 mg intrathecally ( Group F ) or normal saline 0.4 ml ( Group S ) . RESULTS The incidence of shivering three hours after spinal anesthesia was 6 of 30 patients , 20 % in Group F and 15 of 30 patients , 50 % in Group S. The difference was statistically significant ( p < 0.05 ) . Almost all of the shivering patients started in their first hour after spinal anesthesia ( 5 patients in Group F and 13 patients in Group S ) . None in Group F but 4 patients in Group S started shivering before their babies were delivered . The shivering score was also significantly lower in Group F ( p < 0.05 ) . Treatment for shivering was requested in 16 % and 26 % of the shivering patients in Group F and Group S , respectively . There was no difference in the incidence of pharmacologic side effects . The core temperature did not differ significantly between the groups during 3 hours after spinal anesthesia . CONCLUSION The addition of 20 microg fentanyl in 2.2 ml of 0.5 % hyperbaric bupivacaine with 0.2 ml of morphine 0.2 mg intrathecally can reduce the incidence and severity of intraoperative and postoperative shivering after spinal anesthesia for patients who were receiving cesarean section without increasing other side effects
The results showed that , compared with placebo , pethidine , fentanyl , dexmedetomidine , and sufentanil significantly reduced the incidence of perioperative shivering .
In addition , compared with sufentanil , fentanyl showed no impact on haemodynamic stability and the incidence of pruritus .
CONCLUSION Pethidine , fentanyl , dexmedetomidine , and sufentanil appear to be effective for preventing perioperative shivering in puerperae undergoing cesarean sections .
Considering the risk-benefit profiles of the included neuraxial adjuvants , fentanyl is probably the optimal choice
BACKGROUND Perioperative shivering is clinical ly common during cesarean sections under neuraxial anesthesia , and several neuraxial adjuvants are reported to have preventive effects on it .
However , the results of current studies are controversial and the effects of these neuraxial adjuvants remain unclear .
AIM To evaluate the effects of neuraxial adjuvants on perioperative shivering during cesarean sections , thus providing an optimal choice for clinical application .