Postoperative Pharyngolaryngeal Adverse Events with Laryngeal Mask Airway (LMA Supreme) in Laparoscopic Surgical Procedures with Cuff Pressure Limiting 25 : Prospective, Blind, and Randomised Study

Table 1

Demographic data.

	L group	H group	𝑃
Gender (M/F)	18/31	18/31	1.00
Age (yrs)	42±15	41±14	0.828
Height (cm)	164±8	163±7	0.468
Weight (kg)	64±13	65±11	0.592
Operation			0.686
Appendectomy	6	9
Cholecystectomy	34	34
Gynecological	9	6
CO2 pr (mmHg)	12	12
Time (min)
Anesthesia	86±31	86±32	0.962
Operation	56±30	58±31	0.767
LMA size			0.299
Size 3	7	3
Size 4	36	39
Size 5	6	7
Attempt number			0.399
1	47	45
2	2	4
3	0	0
Insertion failure			—
Into airway	0	0	—
Air leak	0	0	—
Ineffective V	0	0	—
Blood on LMA	3	4	0.698
Sevoflurane
Min (%)	0.9±0.2	1.0±0.4	0.76
Max (%)	1.7±0.3	1.6±0.3	0.63
Op site pain
POD 1	40±6	32±5	0.86
POD 2	40±8	34±7	0.30
Ketorolac (mg)
~POD 1	16±17	12±17	0.88
POD 1~POD 2	11±16	7±14	0.80

Values are expressed as number of patients or mean ± standard deviation.
L group: laryngeal mask airway (LMA) cuff pressure limiting 25 cmH₂O group; H group: LMA cuff pressure at 60 cmH₂O group; M: male; F: female; CO₂ pr: insufflated carbon dioxide pressure for pneumoperitoneum, time, attempt number, and attempt number for successful LMA insertion; Into airway: failure into airway; Air leak: persistent air leak; Ineffective V: ineffective ventilation; Blood stained LMA: the presence of visible blood inside or outside of LMA; Min (%): minimal end expiratory concentrations of sevoflurane concentration (%); Max (%): maximal end expiratory concentration of sevoflurane (%); Op; operation; POD 1: postoperative day 1 (discharge from postanaesthetic care unit (PACU)); POD 2: postoperative day 2 (24 hours after discharge from PACU); ~POD 1: from end of surgery to discharge from PACU; POD 1~POD 2: from POD 1 to POD 2.