What is it about?

To Compare The Haemodynamic Responses and Adequacy of Ventilation Between Laryngoscopic Endotracheal

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Why is it important?

The haemodynamic response associated with laryngoscopy and tracheal intubation may be harmful to certain patients. The laryngeal mask airway (LMA) avoids the need for laryngoscopy and allows positive pressure ventilation of the lungs in appropriate patients. This study compared the haemodynamic response, ease of insertion and adequacy of ventilation, of tracheal intubation with that of LMA-Classic insertion in patients undergoing short surgical procedures. Sixty patients undergoing short surgical procedures between 18-60 years of ASA grade I and II were randomly allotted to one of the two groups of 30 each (group ETT vs group LMA). Laryngoscopic tracheal intubation or LMA-classic insertion was performed after induction of anaesthesia with fentanyl and propofol, and muscle relaxation with succinylcholine. Anaesthesia was maintained with halothane and nitrous oxide in oxygen. Haemodynamic response, ease of insertion and adequacy of ventilation was observed and compared. The increase in HR, SBP, DBP and MAP in the laryngeal mask airway group was significantly less than that in ETT group. Also the observed haemodynamic variables returned to baseline earlier in LMA group than in ETT group. There was no statistical difference observed in oxygenation and adequacy of ventilation between the two groups with no significant difference in periopertive adverse events in both the groups. Our study supports the usefulness of laryngeal mask airway as an alternative to endotracheal tube in airway management during general anaesthesia (with muscle relaxation) in appropriate patients for short surgical procedures.

Perspectives

The haemodynamic response associated with laryngoscopy and tracheal intubation may be harmful to certain patients. The laryngeal mask airway (LMA) avoids the need for laryngoscopy and allows positive pressure ventilation of the lungs in appropriate patients. This study compared the haemodynamic response, ease of insertion and adequacy of ventilation, of tracheal intubation with that of LMA-Classic insertion in patients undergoing short surgical procedures. Sixty patients undergoing short surgical procedures between 18-60 years of ASA grade I and II were randomly allotted to one of the two groups of 30 each (group ETT vs group LMA). Laryngoscopic tracheal intubation or LMA-classic insertion was performed after induction of anaesthesia with fentanyl and propofol, and muscle relaxation with succinylcholine. Anaesthesia was maintained with halothane and nitrous oxide in oxygen. Haemodynamic response, ease of insertion and adequacy of ventilation was observed and compared. The increase in HR, SBP, DBP and MAP in the laryngeal mask airway group was significantly less than that in ETT group. Also the observed haemodynamic variables returned to baseline earlier in LMA group than in ETT group. There was no statistical difference observed in oxygenation and adequacy of ventilation between the two groups with no significant difference in periopertive adverse events in both the groups. Our study supports the usefulness of laryngeal mask airway as an alternative to endotracheal tube in airway management during general anaesthesia (with muscle relaxation) in appropriate patients for short surgical procedures.

Red Flower Publication Publications
Red Flower Publication Pvt Ltd

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This page is a summary of: To Compare The Haemodynamic Resopnses and Adequacy of Ventilation Between Laryngoscopic Endotracheal Intubation and Laryngeal Mask Airway Classic Insertion in Short Surgical Procedures Under General Anaesthesia with Muscle Relaxation, Indian Journal of Anaesthesia and Analgesia, January 2018, Red Flower Publication Private, Ltd.,
DOI: 10.21088/ijaa.2349.8471.5518.25.
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