Abstract
Elective surgeries like orthognathic for correction of dentofacial deformities do not warrant blood transfusions. But orthognathic procedures often cause appreciable blood loss, most of which cannot be controlled by identification and ligation of blood vessels. Hypotensive anaesthesia could be the ideal way of reducing blood loss and associated transfusions. Numbers of pharmacological agents have been used for inducing hypotension which can bring down mean arterial blood pressure within the target of 65–70 mm Hg, i.e. lowering mean arterial blood pressure to 80% of pre operative value. This paper attempts to evaluate the effectiveness of esmolol in achieving hypotensive anaesthesia and thereby reducing blood loss in orthognathic surgery.
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