Application of LMA Classic for anesthetized, paralyzed children weighing 20 kg: comparison between size 2 and size 2.5

An initial inappropriate size choice might increase the wastage; most importantly, it will increase the risk of hypoxemia due to reduced apnea tolerance in children [3] . [...]it is necessary to look at the suitability of these sizes in the population of 20-kg children.  Size 2 group (n=40) Size 2.5 group (n=40) P value OLP (cm H2O) * 18.8±4.6 20.6±3.0 .038 Insertion time (s) 12.8±6.5 12.5±5.4 .838 Ease of insertion (easy/fair/difficult) 39/1/0 35/5/0 .200 Incidences of 2 and more insertion attempts 12.5% (5/40) 2.5% (1/40) .200 Incidences of insertion failure 2.5% (1/40) 0% (0/40) 1.000 Fiber-optic grading (1/2/3/4) [dagger] 32/8/0/0 30/9/1/0 .789 PAW during ventilation (cm H2O) 12.0±1.3 11.3±2.0 .066 Incidences of blood staining 5.0%(2/40) 5.0%(2/40) 1.000 Incidences of sore throat 5.0%(2/40) 10.0%(4/40) .675 Table 2 Insertion results and incidences of complications Data were expressed as means (SD) or percentages.