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Comparison of Postoperative Analgesic Effect of Intrathecal Clonidine and Fentanyl Added to Bupivacaine in Patients Undergoing Cesarean Section: A Prospective Randomized Double-Blind Study

Khezri, Marzieh Beigom and Rezaei, Meisam and Delkhosh Reihany, Morteza and Haji Seid Javadi, Ezzatalsadat Comparison of Postoperative Analgesic Effect of Intrathecal Clonidine and Fentanyl Added to Bupivacaine in Patients Undergoing Cesarean Section: A Prospective Randomized Double-Blind Study. Hindawi Publishing Corporation Pain Research and Treatment.

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Abstract

Objectives. To compare the analgesic efficacy of intrathecal clonidine and fentanyl added to bupivacaine after cesarean section. Methods. Ninety patients scheduled for cesarean section under spinal anesthesia were randomly allocated to one of the three following groups to receive bupivacaine 10mg combined with 75 ..g clonidine (group C), bupivacaine 10mg combined with 0.5mL fentanyl (group F), and bupivacaine 10mg combined with 0.5mL distilled water (group P), intrathecally. The time to first analgesic request, analgesic requirement in the first 24 hours after surgery, sensory and motor blockade onset time, duration of sensory and motor blockade, the incidence of hypotension, ephedrine requirements, bradycardia, and hypoxemia were recorded. Results. The duration of anesthesia in clonidine group (275.10 �} 96.09) was longer compared to the placebo (211.73 �} 74.80) and fentanyl (192.33 �} 30.36) groups. This difference between group C versus F (.. = 0.006) and P groups (.. < 0.001) was significant. Similarly, the mean time to first analgesic request was also longer in group C (519.44 �} 86.25) than in groups F (277.88 �} 94.25) and P (235.43 �} 22.35 min).This difference between group C versus F (.. < 0.001) and P groups (.. < 0.001) was significant. Conclusion. Intrathecal clonidine 75 ..g with bupivacaine prolonged the time to first analgesic request compared to fentanyl; however, the total analgesic consumption within the first 24 h postoperative was similar in fentanyl and clonidine groups following cesarean section. This trial is registered with ACTRN12611000909921 and ClinicalTrials.gov NCT01425658.

Item Type: Article
Subjects: R Medicine > RG Gynecology and obstetrics
Divisions: University Portal > research center > kcrdu
Depositing User: kosarunit Research portal
Date Deposited: 26 Nov 2015 07:43
Last Modified: 26 Nov 2015 07:43
URI: http://eprints.qums.ac.ir/id/eprint/3050

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