Patient-Controlled Analgesia Clinical Trial
Official title:
Effect of Dexmedetomidine Combined With Dezocine and Flubiprofen for Postoperative Intravenous Patient Controlled Analgesia After Colorectal Surgery
The purpose of this study is to explore the effectiveness of dexmedetomidine as an adjunctive analgesic, combined with dezocine and flubiprofen, used in intravenous Patient-Controlled Analgesia (PCA) after open colorectal surgery.
Dexmedetomidine is a selective alpha-2 adrenoceptor agonist, which has been demonstrated to
have anaesthetic, sedative and analgesic-sparing effects. Besides, Dexmedetomidine has been
reported to cause sedative effects and reduce opioid requirements in the perioperative
period. Many studies had been conducted to reduce the side effect of opioid analgesic. The
current trend of reducing opioid analgesic side effect is direct combination of other drugs
in PCA. The advantages of this method are convenient in clinical use and preventive for side
effects.
In this study, 50 patients who is undergoing elective colorectal surgery will be randomly
allocated into two groups (Control group and Dexmedetomidine group). Patients in both groups
will be given a patient-controlled analgesia (PCA) pump in post anesthetic recovery unit
(PACU) after surgery.
The PCA protocol of Control group is dezocine 0.6mg/kg, flubiprofen 3mg/kg, diluted into
120ml and administer at a background infusion of 2ml/h, and a bolus of 2ml, with a lock-out
of 15min. The PCA protocol of Dexmedetomidine group is dezocine 0.6mg/kg, flubiprofen 3mg/k
and dexmedetomidine 6μg/kg diluted into 120ml and administer at a background infusion of
2ml/h, and a bolus of 2ml, with a lock-out of 15min.
;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Health Services Research
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