Bronchoscopy entails significant manipulation of the upper and lower respiratory tracts with marked hemodynamic response and therefore represents a potentially greater hazard to safe anesthesia.There have been many attempts to attenuate these adverse effects. Dexmedetomidine is highly selective, short-acting central alpha 2 agonist. It has increasingly gained popularity among anesthesiologists as adjuvant to general and regional anesthesia techniques. This study ... Read more