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ORIGINAL ARTICLE
Year : 2019  |  Volume : 7  |  Issue : 2  |  Page : 62-66

Comparing the suppressing effect of dexmedetomidine versus lidocaine in cough during anesthesia emergence: A double-blinded randomized clinical trial


1 Students Research Committee, Arak University of Medical Sciences, Arak, Iran
2 Department of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak, Iran
3 Department of Epidemiology and Biostatistics, Neuroscience Research Center, Qom University of Medical Sciences, Qom, Iran

Correspondence Address:
Hesameddin Modir
Department of Anesthesiology and Critical Care, Arak University of Medical Sciences, Arak
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jhnps.jhnps_32_19

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Background: Cough, laryngospasm, bronchospasm, and tachycardia are physiological responses during anesthesia emergence (AE) and endotracheal extubation. The study addressed the efficacy of dexmedetomidine (DEX) versus lidocaine (LID) in suppressing cough during AE. Materials and Methods: A double-blinded randomized clinical trial enrolled 120 eligible hospitalized patients undergoing general anesthesia. Patients randomly assigned into three groups who (1) infused 0.5 mcg/kg intravenous (IV) DEX, (2) 1.5 mg/kg IV LID, and (3) 10 mL of normal saline (PBO), 10 min before anesthesia. The laryngospasm, cough frequency (CF) (P < 0.05). Significant statistical difference was observed in Ramsay score (RS) except at, SaO2, heart rate (HR), mean blood pressure (BP), and RS was measured, and data were analyzed by analysis of variance (ANOVA), Chi-square, and ANOVA for repeated-measures tests in SPSS 20. Results: No significant difference was uncovered in BP, SaO2, frequency of laryngospasm, and duration of surgery among the groups (P > 0.05), but DEX having lower HR and CF (P < 0.05). A significant statistical difference was observed in RS except at 50 and 60 min (P < 0.05), with a lower RS in the LID and DEX than in the PBO, but both intervention groups were not different. Conclusion: Although RS in the DEX is not different from the LID, DEX demonstrates a reduced HR and CF and appears to be an appropriate drug without side effects on suppressing cough during AE.


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