A prospective observational study to compare direct laryngoscopy and video laryngoscopy using c Mac during endotracheal intubation in adults for elective surgery

Airway management plays an essential role in anaesthesia practice during both elective and emergency surgeries. Endotracheal intubation considered to be the gold standard in securing the airway and definitive technique for resuscitation.it is commonly performed using direct laryngoscope.                                                                  Direct laryngoscopy   is a method of using a laryngoscopy for direct visualisation of laryngeal structures under direct vision to facilitate the endotracheal intubation .Due to poor illumination, difficulties in performing conventional direct laryngoscopy arise from the limited view angle of approximately 10-15degree.  Insufficient laryngoscopic view results in difficult intubation, elevated risks for trauma, failed intubations leading to anaesthesia related morbidity and mortality.                                                                                         Over the last few years, video laryngoscopy based on the principles of indirect laryngoscopy have been introduced into clinical practice to ease endotracheal intubation and might be especially useful in less experienced providers like junior residents and paramedics. Video laryngoscopes are equipped with a better illumination of light source and camera on the tip of the blade, enabling better visualisation of airway anatomy and ultimately making it easier to visualise the entrance of larynx. Hence Video laryngoscopy had advantage over conventional laryngoscopy for ease of endotracheal intubation procedure, better visualisation of airway structures, increase successful intubations and less trauma during intubation.