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Published on: January 18, 2011
Laryngeal mask insertion in children: a rational approach
Pankaj Kundra1, R Deepak, M Ravishankar
1Department of Anaesthesiology and Critical Care, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India. pankajkundra@satyam.net.in
A partially inflated laryngeal mask airway (LMA) cuff inserted laterally improves pediatric insertion success. This method reduces insertion time and gastric insufflation compared to the midline approach with a deflated cuff.
Area of Science:
- Anesthesiology
- Pediatric Anesthesia
- Airway Management
Background:
- Laryngeal mask airway (LMA) insertion techniques vary in adults, with limited pediatric trials.
- Pediatric LMA success rates differ with recommended methods.
Purpose of the Study:
- To compare the efficacy of two LMA insertion techniques in children.
- To evaluate LMA insertion ease, position, and gastric insufflation in pediatric patients.
Main Methods:
- 62 ASA 1-2 children received LMA insertion via midline with a deflated cuff (MD) or lateral with a partially inflated cuff (LP).
- Propofol was the sole induction agent.
- Ease of insertion, fiberoptic position, and gastric insufflation were assessed.
Main Results:
- Group LP showed fewer attempts and significantly reduced insertion time (14.4s vs 23.1s).
- Group MD had a higher incidence of LMA malposition (13% vs 0%) and gastric insufflation (42% vs 10%).
- Higher end-tidal CO2 was observed in children with grade 3 fiberoptic views; LMA blood staining was more frequent in group MD (13% vs 3%).
Conclusions:
- Lateral insertion with a partially inflated LMA cuff is superior in children.
- Grade 3 fiberoptic views may correlate with significant CO2 buildup in spontaneously breathing children.
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