A randomised study to compare the effectiveness of conventional thenar eminence versus modified thenar eminence mask ventilation technique in obese patient after induction of general anaesthesia at SMS medical college Jaipur.

Mask ventilation is the most basic, yet the most essential skill in airway management. It is primary technique of ventilation before tracheal intubation or insertion of any airway devices. Maintainance of airway patency and oxygenation are the major goals of mask ventilation in both elective and emergency conditions. It remains an important bridge to a definitive airway in cases of difficult intubation. Obesity is one of the predictor of Difficult mask ventilation. Obesity can be calculated based on Body mass index. Body mass index is given by the formula BMI=Body weight(kg)/Height(cm2).To achieve adequate mask ventilation during anaesthesia we are using different techniques of mask ventilation. There are multiple ways for hand positioning during mask ventilation, one of them is one- handed technique and other one is two handed technique. Two handed techniques are generally used in difficult mask ventilation since they provide a better mask-to-face seal and greater tidal volume. One such two handed thenar eminence technique are conventional and modified.