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J Clin Anesth ; 20(6): 437-41, 2008 Sep.
Article in English | MEDLINE | ID: mdl-18929284

ABSTRACT

STUDY OBJECTIVE: To determine the effect of dexmedetomidine on intraoperative bleeding during septoplasty and tympanoplasty operations. DESIGN: Randomized, placebo-controlled study. SETTING: Univesity medical center. PATIENTS: 80 ASA physical status I and II patients, aged 18 to 65 years, 40 of whom were scheduled for septoplasty and 40 to undergo tympanoplasty operations. INTERVENTIONS: Patients undergoing septoplasty (S) and tympanoplasty (T) operations were randomly divided into 4 groups. Dexmedetomidine (D) was administered to Group SD and Group TD first as a bolus dose of one microg kg(-1), then intraoperative maintenance was supplied with dexmedetomidine 0.7 microg kg(-1) hour(-1). Groups S and T (controls) were given identical amounts of saline. If systolic blood pressure measurements are greater than 20% preoperative values, then fentanyl one microg kg(-1) was given. MEASUREMENTS: Intraoperative blood loss was determined with suction volumes and gauze counting. Bleeding was rated according to a 6-point scale. Hemodynamic parameters and fentanyl administration were recorded. MAIN RESULTS: Group SD had less bleeding and lower bleeding scores (P < 0.05). In addition, this group received less intraoperative fentanyl (P < 0.05). The only significant difference between Groups TD and T was the amount of intraoperative fentanyl given (35.4 +/- 58.8 vs 110.0 +/- 81.0 microg) (P < 0.05). CONCLUSION: Dexmedetomidine reduces bleeding, bleeding scores, and intraoperative fentanyl consumption during general anesthesia in septoplasty operations.


Subject(s)
Adrenergic alpha-Agonists/pharmacology , Blood Loss, Surgical/prevention & control , Dexmedetomidine/pharmacology , Nasal Septum/surgery , Tympanoplasty , Adolescent , Adult , Aged , Analgesics, Opioid/therapeutic use , Blood Pressure/drug effects , Double-Blind Method , Female , Fentanyl/therapeutic use , Hematocrit , Humans , Male , Middle Aged
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