Table 1.
Patient Characteristics and Intraoperative Variables
| E-PCA group (n = 47) |
dIV-PCA group (n = 54) |
IV- PCA group (n = 52) |
P value | |
|---|---|---|---|---|
| Age, years | 58 ± 12 | 59 ± 7 | 62 ± 13 | 0.148 |
| Height, cm | 167 ± 9 | 164 ± 8 | 163 ± 8 | 0.110 |
| Weight, kg | 64 ± 11 | 62 ± 9 | 61 ± 12 | 0.558 |
| ASA physical status, I/II | 18/29 | 23/31 | 20/32 | 0.895 |
| Hypertension | 17 (36%) | 19 (35%) | 20 (39%) | 0.955 |
| Diabetes mellitus | 3 (6%) | 5 (9%) | 6 (12%) | 0.686 |
| Female gender | 16 (34%) | 20 (37%) | 20 (39%) | 0.892 |
| Subtotal/Total | 32/15 | 36/18 | 35/17 | 1.000 |
| Duration of surgery, min | 179 ± 41 | 170 ± 32 | 178 ± 43 | 0.500 |
| Fluid intake, mL | 1743 ± 468 | 1717 ± 489 | 1795 ± 744 | 0.783 |
| Blood loss, mL | 223 ± 145 | 213 ± 182 | 231 ± 166 | 0.859 |
| Urine output, mL | 241 ± 118 | 238 ± 171 | 276 ± 198 | 0.450 |
| Administered dose of remifentanil, μg | 814 ± 280† | 660 ± 260* | 1000 ± 400 | <0.001 |
| Administered dose of ephedrine, mg | 8.4 ± 9.1‡ | 6.3 ± 7.5 | 4.0 ± 4.8 | 0.016 |
Data are presented as mean ± standard deviation or number of patients (proportion). ASA = American Society of Anesthesiologist, Subtotal = subtotal gastrectomy, Total = total gastrectomy.
† P = 0.017, vs. IV-PCA group (Bonferroni corrected), * P <0.001, vs. IV-PCA group (Bonferroni corrected), ‡ P = 0.013, vs. IV-PCA group (Bonferroni corrected).