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The Effect of Ramosetron on Remifentanil in Preventing Emergence Cough from Sevoflurane Anesthesia in Female Patients

Kim, JH | Lee, GY | Lee, HS | Park, SY
Current pharmaceutical design, 28(16). : 1359-1366, 2022
Journal Title
Current pharmaceutical design
BACKGROUND: Remifentanil reduces cough during extubation. Ramosetron, a 5-HT(3) receptor antagonist, is a potent antiemetic. Regarding the antitussive property of 5-HT receptor agonists, ramosetron can mediate the cough reflex by increasing the remifentanil requirement. This study evaluated the effect of ramosetron on the optimal effect-site concentration (Ce) of remifentanil for preventing emergence cough from sevoflurane anesthesia in female patients. METHODS: Forty-seven randomly selected female patients undergoing laparoscopic cholecystectomy received either ramosetron 0.3 mg (n = 23) or the same volume of normal saline (n = 24) intravenously at the end of surgery. The remifentanil Ce using target-controlled infusion in 50% of patients (EC(50)) and 95% of patients (EC(95)) were assessed using Dixon's up-and-down or isotonic regression method with a bootstrapping approach. RESULTS: Using Dixon's up-and-down method, the EC(50) of remifentanil in the control group (1.33 +/- 0.38 ng/mL) was comparable to that of ramosetron group (1.50 +/- 0.69 ng/mL) (P = 0.615). Using isotonic regression analysis, the EC(50) (83% confidence interval) did not differ between the two groups (1.17 [0.86-1.43] ng/mL and 1.13 [0.68-1.56] ng/mL in control and ramosetron groups). However, the EC(95) (95% confidence interval) was significantly lower in the control group than in the ramosetron group (1.90 [1.45-1.96] ng/mL and 2.92 [2.35-2.97] ng/mL). CONCLUSION: Remifentanil Ce for preventing emergence cough was higher in the ramosetron group than in the control group. It may indicate the lowering effect of ramosetron on the antitussive activity of remifentanil.


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Journal Papers > School of Medicine / Graduate School of Medicine > Anesthesiology & Pain Medicine
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