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ORIGINAL ARTICLE
Year : 2015  |  Volume : 2  |  Issue : 3  |  Page : 79-84

Dexmedetomidine versus magnesium sulfate for oligemic field in middle ear surgery


1 Department of Anesthesia and Intensive Care, Faculty of Medicine, Minia Univeristy, Minia, Egypt
2 Department of Otorhinolaryngeology, Faculty of Medicine, Minia Univeristy, Minia, Egypt

Correspondence Address:
Ahmed Z Mohamed
MD, Department of Anesthesia, Faculty of Medicine, Minia University Hospital, Minia City 61511
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2356-9115.172795

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Aim of study To compare between the effects of dexmedetomidine and magnesium sulphate on quality of surgical field visualization in middle ear surgery. Patients and Methods 60 patients scheduled for middle ear surgery were included in the study. Patients were randomly divided into two equal groups, the 1st group received dexmedetomidine infusion (D group) while the 2nd received magnesium sulphate infusion (Mg group). Induction of anesthesia was done by propofol 2 mg/kg and atracurium 0.5 mg/kg. Anesthesia was maintained with sevoflurane which titrated to obtain 30% decrease in blood pressure. Infusion of dexmedetomidine 1 μg/kg over 10 minutes followed by 0.5 μg/kg/hr in D group while infusion of 50 mg/kg magnesium sulphate over 10 minutes followed by 15 mg/kg/hr magnesium sulphate in Mg group. Quality of surgical field visualization, Amount of blood loss, blood pressure, heart rate and postoperative side effects were recorded. Results Quality of surgical field visualization was better and amount of blood loss was less in group D than group Mg without serious side effect. Conclusion Dexmedetomidine provided better quality of surgical field vision and less bleeding when compared to magnesium sulphate without any side effects in middle ear surgery.


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