NCT07196137

Comparing the Effect of LTS and Air-Q sp3G LMA Use on Gastric Insufflation Using Ultrasound

Comparing the Effect of Laryngeal Tube Suction (LTS) and Air-Q sp3G Laryngeal Mask Airway (LMA) Use on Gastric Insufflation and Volume Using Ultrasound

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 101 (actual)
• Sponsor: Ankara City Hospital Bilkent · Academic / Other
• Sex: All
• Age: 1 Year – 12 Years
• Healthy volunteers: Not accepted

Summary

The primary objective of the study is to evaluate gastric insufflation during the use of two different airway devices (Laringeal Tube Suction and Air Q sp3G Laryngeal Mask. The secondary objectives of the study are to assess these two airway devices in terms of perioperative complications.

Detailed description

During general anesthesia, various devices are used to secure the airway. Supraglottic airway devices (SGAs) are among these and are used safely for short surgical procedures. Although SGAs are used to provide an easy and safe airway, none of them seal the trachea and ventilate only the lungs in the way that endotracheal intubation (ETT) does. Positive pressure ventilation provided at the supraglottic level cannot prevent air from escaping into the esophagus and, consequently, the stomach. Gastric distension is associated with perioperative complications such as nausea, vomiting, and aspiration, and is considered an undesirable condition by anesthesiologists. The study aims to compare the Laryngeal Tube Suction and the Air Q sp3G Laryngeal Mask in terms of gastric insufflation. By measuring the diameters of the gastric antrum and recording their changes throughout the case, this study intend to evaluate the effectiveness and reliability of the two airway devices. ASA (American Society of Anesthesiologist) I-III class pediatric patients between the ages of 1-12 who will undergo elective surgery under general anesthesia will be included in the study. Randomisation will be done with a sealed envelope. The blinded researcher will collect and record data without knowing which airway device was chosen. Blind researcher will do gastric ultrasound measurements with Butterfly IQ+ ultrasound. Another researcher will insert the airway device and after insertion patients head will be covered, this researcher will not involve during data collection. After the data is collected, the airway device releated data will be recorded by non-blind researcher seperately.

Conditions

• Laryngeal Masks Comparison
• Elective Surgeries
• Gastric Ultrasonography
• Gastric Insufflation

Timeline

• Start date: 2025-09-29
• Primary completion: 2026-01-02
• Completion: 2026-01-29
• First posted: 2025-09-29
• Last updated: 2026-02-02

Locations

1 site across 1 country: Turkey (Türkiye)