Gastric Insufflation Volume Using I-gel Versus Ambu AuraGain in Pediatric Patients Undergoing Elective Orthopedic Operations Under General Anesthesia

Not Applicable

Recruiting

• Conditions: Gastric Insufflation; I-gel; Ambu AuraGain; Pediatric; Orthopedic Operations; General Anesthesia

• Registration Number: NCT06853756
• Lead Sponsor: Tanta University

Brief Summary

Our study aimed to compare the gastric insufflation volume between Ambu AuraGain and i-gel and its relationship with the oropharyngeal sealing pressure and the incidence of postoperative complications in generally anesthetized controlled-ventilated pediatric patients undergoing elective orthopedic operations.

Detailed Description

Supraglottic Airway Devices (SADs) refer to a wide range of medical devices that can act as a passageway for oxygenation, ventilation, and administration of anesthetic gases and may be deemed an alternative to Endotracheal Tubes (ETTs).

Oropharyngeal sealing pressure (OLP) provides insight into the risk of gastric insufflation and aspiration risk. It is considered a measure of adequate performance and successful placement based on the premise that the SAD is sited properly in the hypopharynx after blind placements, and it is a useful comparator between SADs.

Study Timeline

• Study Start: 2023-08-01
• Status Verified: 2025-02
• Study First Submitted: 2025-02-25
• Study First Submitted QC: 2025-02-25
• Last Update Submitted: 2025-02-25
• Study First Posted: 2025-03-03
• Last Update Posted: 2025-03-03
• Primary Completion: 2025-03-27
• Study Completion: 2025-03-27

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• Aged from 2 to 12 years.
• Both sexes.
• American Society of Anesthesiologists (ASA) physical status I and II.
• Scheduled for elective orthopedic operations in a supine position under general anesthesia.

Exclusion Criteria

• Patients with a known history of gastro-oesophageal reflux disorders.
• Full Stomach.
• Anticipated difficult mask ventilation or intubation.
• Body mass index "BMI" exceeding 20% of the ideal.
• A history of chest problems.
• History of the gastrointestinal tract or thoracic surgeries.

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Gastric antrum cross-sectional area (CSA)	At the end of surgery before supraglottic airway devices removal (5 min)	Gastric antrum cross-sectional area (CSA) was measured before induction of general anesthesia, before supraglottic airway devices (SAD) insertion, after Ryle's tube insertion, and at the end of surgery before SAD removal.

Secondary Outcome Measures

Name	Time	Method
Oropharyngeal leak pressure	Intraoperatively	Oropharyngeal leak pressure was determined after confirmation of adequate device insertion and secure taping by closing the adjustable pressure-limiting (APL) valve with a fresh gas flow of 3 l/min and observing the airway pressure at which equilibrium was attained in the aneroid manometer (airway pressure was not allowed to exceed 40cmH2O) or when there was audible air leak from the throat which was auscultated in the neck with a stethoscope placed just beside the thyroid cartilage.
Time of insertion of supraglottic airway devices	Intraoperatively	Insertion time was measured in seconds and counted from the time of opening the jaw to the appearance of the capnography waveform.
Number of attempts for insertion	Intraoperatively	Three insertion attempts were allowed. Each 'attempt' was defined as reinsertion of the airway device into the mouth. Insertion failure of the device was defined as greater than three unsuccessful attempts or if the entire process of insertion exceeded 120 seconds.
Incidence of postoperative complications	24 hours postoperatively	Incidence of postoperative complications such as mucosal injury, laryngeal spasm, hoarseness, nausea and vomiting were recorded.

Trial Locations

Locations (1)

Tanta University; 🇪🇬 Tanta, El-Gharbia, Egypt