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The Clinical Efficacy of Recently Developed Supraglottic Airway Device, I-gel™, in Neonates and Infants: Comparison With Classic-laryngeal Mask Airway (c-LMA)

This study has been completed.
Information provided by (Responsible Party):
Yonsei University Identifier:
First received: September 14, 2011
Last updated: June 1, 2013
Last verified: June 2013
Although the safety and efficacy of the Classic-laryngeal mask airway (c-LMA) in children has been shown in several large observational studies, findings suggest that the smaller-sized c-LMAs, in particular sizes 1 and 1½, are less suitable for airway maintenance under general anesthesia in small infants and that they may even be associated with more frequent complications than with the facemask and endotracheal tube. The pediatric i-gel is a new supraglottic airway device for children. It is made of a soft, gel-like elastomer with a noninflatable cuff. Studies about I-gel in adults have been promising, showing an easy insertion, high airway leak pressures, and low complication rates with few postoperative complaints. The aim of this study is to compare clinical performance of the pediatric i-gel and c-LMA in infants.

Condition Intervention
Airway Complication of Anaesthesia Device: classic-laryngeal mask airway (c-LMA) Device: i-gel™

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Participant)

Resource links provided by NLM:

Further study details as provided by Yonsei University:

Primary Outcome Measures:
  • airway leak pressure [ Time Frame: within 5 min of insertion of each device ]
    Airway leak pressure was determined by adjusting the expiratory valve of the breathing circle to 40 cmH2O (fixed fresh gas flow 3 L/min) and recording the pressure when equilibrium was reached.

Enrollment: 54
Study Start Date: September 2011
Study Completion Date: January 2013
Primary Completion Date: January 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: LMA group Device: classic-laryngeal mask airway (c-LMA)
Insertion of c-LMA
Experimental: I-gel group Device: i-gel™
Insertion of I-gel


Ages Eligible for Study:   up to 1 Year   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • infants (0-1 year of age)
  • who scheduled for elective surgery of short duration (less than 2 hr) undergoing general anesthesia using supraglottic airway

Exclusion Criteria:

  • patients with an abnormal airway
  • with reactive airway disease
  • with gastroesophageal reflux disease
  • with chronic respiratory disease
  • has a history of an upper respiratory tract infection in the preceding 6-week period
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01437137

Korea, Republic of
Severance Hospital
Seoul, Korea, Republic of, 120-752
Sponsors and Collaborators
Yonsei University
  More Information

Responsible Party: Yonsei University Identifier: NCT01437137     History of Changes
Other Study ID Numbers: 1-2011-0052
Study First Received: September 14, 2011
Last Updated: June 1, 2013

Keywords provided by Yonsei University:
elective surgery of short duration (less than 2 hr) undergoing general anesthesia using supraglottic airway processed this record on September 20, 2017