Abstract

BACKGROUND Induced hypotension limits intra-operative blood loss to provide better visibility of the surgical field and diminishes the incidence of major complications during spine surgeries. Nitroglycerine (NTG) is a well-established vasodilator that acts by reducing increasing the venous capacitance and reducing preload and cardiac output, thereby reducing the arterial blood pressure and dexmedetomidine, a selective α2 agonist has sympatholytic action and thus induce hypotension, so these 2 drugs have been used in this study to induce hypotensive anaesthesia.

Description

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