In surgery under general anesthesia due to nasal bone fracture, laryngeal mask airway or tracheal intubation has been used. However, it has not been investigated that the difference of recovery profiles according to use of laryngeal mask airway or tracheal intubation in nasal bone fracture surgery. The aim of study is to evaluate the efficacy of the laryngeal mask airway regarding recovery profiles and airway complications, compared to tracheal intubation.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
70
LMA Flexible is a supraglottic airway device, which can be moved out of the surgical field without displacement of the cuff, or loss of seal for the anesthetist
Endotracheal tube is a plain tube, which is most commonly used in general anesthesia.
Ajou University Hospital
Suwon, Gyeongki-do, South Korea
cough during extubation
Grade of cough during periextubation periods (0=no cough, 1=single cough, 2=more than one episode of non-sustained cough, 3=sustained and repetitive cough with head lift)
Time frame: From end of surgery to extubation
Adequate tidal volume during mechanical ventilation
Tidal volume (ml)
Time frame: From insertion of airway device to extubation
Adequate ventilation during mechanical ventilation
end-tidal carbon dioxide
Time frame: From insertion of airway device to extubation
Airway pressure during mechanical ventilation
peak and mean airway pressure
Time frame: From insertion of airway device to extubation
Changes of heart rate
Heart rate
Time frame: Before anethetic induction, 1 minute after intubation, the end of surgery, 1 minute after extubation.
Changes of blood pressure
mean blood pressure
Time frame: Before anethetic induction, 1 minute after intubation, the end of surgery, 1 minute after extubation.
Changes of saturation
peripheral saturation
Time frame: Before anethetic induction, 1 minute after intubation, the end of surgery, 1 minute after extubation.
Number of Participants with blood contamination at vocal cord and distal trachea
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Blood contamination was examined using fibrobronchoscope.
Time frame: Between the end of surgery and extubation
Device blood contamination
0=no contamination, 1=external contamination of the tube, 2=some soilage of the inner surface of the tube, 3=frank coating of the inner surface of the tube
Time frame: At airway device removal
Number of Participants with airway complications after extubation
laryngospasm, hypoventilation (respiratory rate \<8/minutes), desaturation (peripheral pulse oximetry saturation \<95%)
Time frame: From extubation to 5 minutes after extubation
Time to eye opening and time to extubation
Time in seconds from anesthetic discontinuation to eye opening at verbal commend and time in seconds from anesthetic discontinuation to extubation
Time frame: From anesthetic discontinuation to eye opening and extubation
Number of Participants with postoperative airway complications
Sore throat, hoarseness, dysphagia, and nausea and vomiting
Time frame: 30 minutes after surgery and postoperative 1 day