Improving patient safety after rigid bronchoscopy in adults: laryngeal mask airway versus face mask – a pilot study

Figures & data

Table 1 Study population

	n=21	FM group (n=10)	LMA group (n=11)	P-value
Age, years	64±4.2	57±17.86	70±12.84	0.561
Sex (male/female)	6/15	3/7	3/8	0.890
BMI	28±2	27±3	29±2	0.895
ASA score I–III	3	3/1/6	2/2/7	0.887
Admission surgical diagnosis
Non-neoplastic stenosis	7	4	3
Malignant stenosis	8	4	4
Benign tumors	3	2	1
Bronchopleural fistula	1	0	1
Foreign body	2	1	1
Comorbidities
Hypertension	8	5	3	0.424
COPD	7	3	4	0.556
Cardiovascular disease	8	5	4	0.663
Dyslipidemia	5	3	2	0.531

Notes: Data are expressed as the mean ± standard deviation or absolute value. A P-value <0.05 was considered to be statistically significant.

Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index; COPD, chronic obstructive pulmonary disease; FM, face mask; LMA, laryngeal mask airway.

Table 2 Operative data

	FM group (n=10)	LMA group (n=11)	P-value
Duration of surgery (minutes)	61.20±22.45	58.72±23.73	0.955
Duration of post-surgical support (minutes)	29.40±5.28	30.27±4.44	0.972
Remifentanil, total dose (μg)	215±75	210±90	0.925
Propofol, total dose (mg)	140±75	140±70	0.979

Notes: The data are shown as the mean ± standard deviation. P<0.05 was considered to be statistically significant.

Abbreviations: FM, face mask; LMA, laryngeal mask airway.

Table 3 Hemodynamic and respiratory events during the postoperative period

	FM group (n=10)	LMA group (n=11)	P<0.05	P-value
Desaturation	2	–	P<0.05	0.019
Arterial hypertension	1	1	NS	0.384
Arterial hypotension	2	–	P<0.05	0.046
Tachycardia	2	1	NS	0.175
Bradycardia	2	–	P<0.05	0.038

Notes: Data are expressed as absolute values. See text for definitions of events.

Abbreviations: FM, face mask; LMA, laryngeal mask airway; NS, not significant.