An interventional study of airway maneuver in Airway Morbidity, sponsored by Tri-Service General Hospital. Status unknown at 1 site in Taiwan. Open to participants aged 20 Years to 80 Years. Per ClinicalTrials.gov, last updated 2014-11-14.
Sponsored by Tri-Service General Hospital · Not applicable, Interventional, and Treatment
One-handed E-C clamp mask holding technique, two-handed mask ventilation with jaw thrust, and two-handed mask ventilation with triple airway maneuver are three common airway management maneuvers. Sniffing position may improve ventilation between these three maneuvers. The investigators hypothesize that ventilation efficiency may be different between these three maneuvers whether the patient is in sniffing position or neutral position. The investigators would like to quantify this effect by measuring the expired tidal volume, airway pressure, EtCO2 slope and hemodynamic change between these three maneuvers during anesthesia induction.
Mask ventilation is considered a important skill for airway management during general anesthesia induction and for apneic unconscious patients. One-handed E-C clamp mask holding technique, two-handed mask ventilation with jaw thrust, and two-handed mask ventilation with triple airway maneuver are three common airway management maneuvers. However, the efficiency of ventilation between these three maneuvers has to be clarified. Besides, whether sniffing position or neutral position may improve ventilation between these three maneuvers is to be determined. The investigators will collect airway parameters of the patients receiving general anesthesia and measure the expired tidal volume, airway pressure, EtCO2 slope and hemodynamic change between these three maneuvers during anesthesia induction.
89 studies on the registry are indexed under Unconsciousness; 11 are open to participants now.
This study's planned enrollment of 120 is above the median of 51 across 56 interventional studies indexed under Unconsciousness.
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Exclusion Criteria:
the airway maneuver that press the mask against the patient's face (using the "C" of our thumb and forefinger) while pulling the jaw forward (using the "E" of our other fingers behind the mandible), and leaves one hand free to squeeze the bag.
Procedure: airway maneuver
the airway maneuver performed with thumbs point toward feet, palms press down and other fingers perform jaw thrust
Procedure: airway maneuver
the airway maneuver performed with two-handed mask ventilation, jaw thrust and head-tilt chin-lift technique
Procedure: airway maneuver
Three-period crossover study: During general anesthesia induction, subjects are assigned to one of the 6 airway maneuver sequences (ABC, CAB, BCA, ACB, CBA, or BAC) in accordance with a randomization schedule. Each maneuver is performed 5 times in a period. Airway maneuver A: E-C clamp mask holding technique; Airway maneuver B: two-handed mask ventilation with jaw thrust airway maneuver; Airway maneuver C: two-handed mask ventilation with triple airway maneuver(combine jaw thrust and head tilt chin lift)
Air exchange
Expired tidal volume, end tidal CO2 slope, peak inspiratory pressure between one-handed E-C clamp mask holding technique, two-handed mask ventilation with jaw thrust, and two-handed mask ventilation with triple airway maneuver
Time frame: during anesthesia induction
Hemodynamic change
blood pressure and heart rate variability during ventilation between one-handed E-C clamp mask holding technique, two-handed mask ventilation with jaw thrust, and two-handed mask ventilation with triple airway maneuver
Time frame: during anesthesia induction
This study is status unknown, as verified in Nov 2014. You cannot join it, but the record below documents what was studied.
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Tri-Service General Hospital