Table 1.
Characteristics of the patients
| C Group | R Group | Div Group | RD0.5 Group | RD1.0 Group | RD2.0 Group | |
|---|---|---|---|---|---|---|
| Age (year) | 49 ± 13 | 57 ± 15 | 52 ± 12 | 56 ± 10 | 54 ± 13 | 51 ± 12 |
| Males/females | 11/9 | 10/10 | 9/11 | 8/12 | 12/8 | 11/9 |
| Height (cm) | 158 ± 11 | 168 ± 11 | 161 ± 14 | 165 ± 10 | 159 ± 12 | 163 ± 13 |
| Weight (kg) | 58 ± 9 | 65 ± 11 | 65 ± 12 | 60 ± 9 | 57 ± 12 | 63 ± 9 |
| BMI | 21.1 ± 1.8 | 22.4 ± 2.1 | 24.1 ± 1.9 | 21.9 ± 1.7 | 20.6 ± 2.6 | 23.1 ± 2.3 |
| ASA I/II | 5/15 | 7/13 | 5/15 | 4/16 | 5/15 | 4/16 |
| OLV duration (min) | 65 ± 14 | 59 ± 15 | 61 ± 10 | 55 ± 9 | 53 ± 12 | 63 ± 11 |
| Surgery duration (min) | 153 ± 16 | 149 ± 27 | 134 ± 23 | 146 ± 32 | 143 ± 30 | 140 ± 25 |
| Infused crystalloid (ml) | 644 ± 84 | 613 ± 88 | 605 ± 55 | 599 ± 48 | 586 ± 55 | 600 ± 68 |
| Urinary output (ml) | 172 ± 18 | 171 ± 23 | 175 ± 31 | 178 ± 36 | 168 ± 29 | 164 ± 22 |
| Estimated blood loss (ml) | 174 ± 27 | 172 ± 33 | 175 ± 31 | 174 ± 34 | 165 ± 25 | 159 ± 21 |
| Bradycardia | 0 | 0 | 3ab | 0c | 3abd | 6abcde |
| Atropine | 0 | 0 | 3ab | 0c | 3abd | 6abcde |
| Hypotension | 0 | 0 | 2 ab | 0 c | 2 abd | 4 abcde |
| Methoxamine | 0 | 0 | 2 ab | 0 c | 2 abd | 4 abcde |
Values are expressed as the number of patients or the mean ± SD. ASA, American Society of Anesthesiologist Classification. BMI, body mass index. OLV, one-lung ventilation. aP<0.05 vs. the C group; bP<0.05 vs. the R group; cP<0.05 vs. the Div group; dP<0.05 vs. the RD0.5 group; eP<0.05 vs. the RD1.0 group