Comparative study of using laryngeal mask (LMA) with and without muscle relaxant in anesthesia of children one to four years old undergoing upper extremity reconstructive surgery in Hazrat Fatemeh Hospital.

Comparative study of using laryngeal mask (LMA) with and without muscle relaxant in anesthesia of children one to four years old undergoing upper extremity reconstructive surgery

This study is a double-blind, randomized, phase 3 clinical trial on 70 patients and block randomization method will be used.

After proper and standard monitoring, we establish a suitable intravenous injection route from the patient and in two groups of patients, general anesthesia is performed according to the necessary standards (drug injection and anesthesia method). In the first group, neuromuscular relaxant is used as an intervention during induction and the appropriate size of laryngeal mask is selected according to the patient's weight. In the second group, normal saline is used instead of neuromuscular relaxant. According to the patient's weight, the appropriate size of laryngeal mask is selected, then the objectives of the study are compared in two groups. This study is performed in Hazrat Fatemeh Hospital in Tehran.

Inclusion criteria: children one to four years old, anesthesia score ASA 1, 2, upper limb injury Exclusion criteria: Children with the possibility of difficult intubation, Children with upper airway infections, Children with congenital diseases with unusual airway, Children with a history of seizures and neurological diseases, Children at high risk for pulmonary aspiration.

In one group of patients, neuromuscular relaxant is used as an intervention during induction of anesthesia, and in another group, normal saline is used instead of neuromuscular relaxant.

Laryngeal mask placement, intraoperative movement of laryngeal mask, laryngeal mask pressure, laryngeal mask complications

In this study, we use the block randomization method so that after selecting patients according to the inclusion and exclusion criteria by selecting numbers from the table of random numbers and adapting to the blocks, patients are divided into study groups.

The patient and the person evaluating the goals are unaware of the type of intervention being assigned.