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LMA® protector™ in patients undergoing laparoscopic surgeries: a multicenter prospective observational study
Yanhong Liu1, Yuxiang Song1,2, Miaomiao Wang1
1Department of Anesthesiology, The First Medical Center of Chinese PLA General Hospital, Beijing, China.
BMC Anesthesiology
|December 21, 2021
Summary
The Laryngeal Mask Airway (LMA) Protector is safe and effective for laparoscopic surgery, with a 97.7% insertion success rate and no aspiration events. Minor complications like sore throat were reported.
Area of Science:
- Anesthesiology
- Surgical Innovation
Background:
- Laryngeal Mask Airway (LMA) use in surgery is common, but its application in laparoscopic procedures remains debated.
- Concerns include potential esophageal regurgitation, aspiration risk, and ventilation challenges.
Purpose of the Study:
- To evaluate the safety and effectiveness of the LMA® Protector™ in patients undergoing laparoscopic surgery.
- To assess key performance metrics and complication rates associated with LMA® Protector™ use.
Main Methods:
- A study involving 300 patients aged 18-70 undergoing laparoscopic surgery.
- Measured insertion time, success rate, oropharyngeal leak pressure, and airway complications.
- Documented bloodstains and gastric reflux in the drainage channel post-removal.
Main Results:
- Achieved a successful insertion rate of 97.7% (293/300) with effective ventilation in 96.7% (290/300) of patients.
- Oropharyngeal leak pressure averaged 30.18 cmH2O; 25.86% reported mild sore throat.
- Gastric reflux was observed in 1.72% (5/300) of patients, with no aspiration events.
Conclusions:
- LMA® Protector™ demonstrated safety and efficacy in laparoscopic surgery, with minor, non-critical complications.
- While no aspiration occurred, further research is recommended for high-risk reflux or Trendelenburg procedures.
