Korean J Anesthesiol.  2005 Jul;49(1):67-71. 10.4097/kjae.2005.49.1.67.

The Comparison of Laryngeal Mask Airway and Laryngeal Tube in Spontaneous Breathing Anesthetized Pediatric Patients

• Lim HK
• Lee CS
• Song JH
• Shinn HK
• Chung CK
• Lee MH
• Kim J
• Park HJ

• KMID: 1936943
• DOI: http://doi.org/10.4097/kjae.2005.49.1.67

Abstract

BACKGROUND: During general anesthesia, the most commonly used way of keeping airway patency is endotracheal intubation. However, for relatively short and simple surgery, less invasive method using laryngeal tube (LT) or laryngeal mask airway (LMA) is generally accepted and the comparative study between the two apparatus is now being actively done. In this study, we evaluated the usefulness of two apparatus from pediatric patients.
METHODS
We select 58 children from one to ten years old who are to be given short operation and then anesthetize 30 children by using LT and 28 children by LMA. The size of LT and LMA is chosen by body weight according to the manufacturer's recommendation. We evaluated the seal pressure of LT and LMA, ventilatory efficiency, attempt number, facility of insertion, proper positioning confirmed by fiberoptic bronchoscopy, and complications.
RESULTS
There was no statistically significant difference in the attempt number and facility of insertion between the two groups. LT and LMA were both properly positioned and the ventilation efficiency was not different from the two groups. The LT group shows higher seal pressure than the LMA group and there is no correlation between sealing pressure and ventilation efficiency. There is close correlation between bronchoscopic grade and ventilatory efficiency. complications are not different between two groups.
CONCLUSIONS
Both LT and LMA are useful for simple surgery of children and LT has higher sealing pressure.

Keyword

laryngeal tube; laryngeal mask airway; pediatric patients

MeSH Terms

Anesthesia, General
Body Weight
Bronchoscopy
Child
Humans
Intubation, Intratracheal
Laryngeal Masks*
Respiration*
Ventilation