Table 1 Clinical characteristics of patients and general anesthesia in the one-handed and two-handed groups
Variables | One-handed group | Two-handed group | P value |
|---|---|---|---|
Patients, n | 30 | 30 | |
Male sex, n (%) | 6 (20.0) | 5 (16.7) | 1.000 |
Age, years | 64.1 ± 14.8 | 65.7 ± 12.9 | 0.836 |
Height, cm | 154.9 ± 8.6 | 154.0 ± 7.2 | 0.807 |
Body weight, kg | 54.4 ± 13.0 | 49.1 ± 10.0 | 0.129 |
Body mass index, kg/m2 | 22.5 ± 4.3 | 20.7 ± 3.9 | 0.093 |
General anesthesia | |||
Dose of thiopental, mg | 133.3 ± 35.0 | 124.2 ± 38.5 | 0.262 |
Ventilatory volume during one breath, mL/breath | |||
Inhaled | 460.7 ± 141.3 | 463.1 ± 102.2 | 0.416 |
Exhaled | 259.0 ± 86.8 | 437.3 ± 100.9 | < 0.001* |
Difference between inhaled and exhaled ventilatory volumes, mL/breath | 201.7 ± 98.6 | 25.8 ± 44.6 | < 0.001* |
Ventilation rate, breaths/min | 20.6 ± 5.6 | 26.2 ± 3.0 | < 0.001* |
Minute ventilation, L/min | |||
Inhaled | 9.52 ± 3.94 | 11.95 ± 2.29 | < 0.005* |
Exhaled | 5.36 ± 2.46 | 11.29 ± 2.24 | < 0.001* |
Difference between inhaled and exhaled minute ventilations, L/min | 4.16 ± 2.21 | 0.67 ± 1.14 | < 0.001* |
End-tidal carbon dioxide, mmHg | 23.3 ± 4.4 | 28.2 ± 4.0 | < 0.001* |