Table 1.
Patient characteristics and preoperative data
| Group L (n=40) | Group S (n=40) | |
|---|---|---|
| Age, years | 55 (51–62) | 54 (50–60) |
| Sex (male), n (%) | 13 (32.5) | 9 (22.5) |
| Weight, kg | 60.3±7.9 | 59.3±8.7 |
| BMI, kg/m2 | 23.3±2.5 | 23.0±2.5 |
| ASA physical status, I/II, n (%) | 18 (45.0)/22 (55.0) | 13 (32.5)/27 (67.5) |
| Smoking history, n (%) | 5 (12.5) | 6 (15.0) |
| Pulmonary function test | ||
| FEV1, % | 107.3±11.4 | 107.1±15.5 |
| FVC, % | 110.5±11.3 | 109.9±16.1 |
| FEV1/FVC, % | 80.9 (76.4–83.1) | 79.6 (77.3–85.5) |
| SpO2 in room air, % | 97 (96–98) | 98 (97–99) |
| Interincisor Distance, cm | 4.0 (4.0–4.5) | 4.0 (4.0–5.0) |
| Thyromental Distance, cm | 6.0 (6.0–8.0) | 6.0 (6.0–9.0) |
| Sternomental Distance, cm | 12.0 (12.0–15.0) | 12.0 (12.0–14.0) |
| Mallampati score, I/II/III, n (%) | 9 (22.5)/16(40.0)/15(37.5) | 3 (7.5)/11(27.5)/25(65.0) |
Data are presented as the mean ± SD, median (interquartile range), or number (%)
ASA American Society of Anesthesiologists, BMI Body Mass Index, FEV1 Forced Expiratory Volume in the first second, FVC Forced Vital Capacity, NYHA New York Heart Association, SpO2 saturation of pulse oxygen, OLV one-lung ventilation
Group L: endotracheal intubation with patients in the left lateral position; Group S: endotracheal intubation with patients in the supine position