Table 2.
Characteristics and surgical details of study population.
| Control group | EA group | P value | |
|---|---|---|---|
| n = 20 | n = 20 | ||
| Gender (male/female) | 9/11 | 8/12 | NS |
| Age in years | 47 ± 5 | 44 ± 6 | NS |
| Weight (kg) | 59 ± 6 | 58 ± 9 | NS |
| LVEF (%) | 57 ± 7 | 59 ± 5 | NS |
| Heart function degree (II/III) | 4/16 | 3/17 | NS |
| Rhythm of heart before surgery (sinus/atrial fibrillation) |
8/12 | 8/12 | NS |
| Valve replacement | NS | ||
| Mitral valve | 12 | 13 | |
| Aortic valve | 2 | 3 | |
| Doublea valve | 6 | 4 | |
| Anesthesia time (min) | 308 ± 38 | 304 ± 45 | NS |
| Operation time (min) | 207 ± 32 | 206 ± 49 | NS |
| CPB time (min) | 91 ± 39 | 87 ± 29 | NS |
| Aorta cross-clamp time (min) | 66 ± 25 | 68 ± 31 | NS |
| Total volume (ml) | 2264 ± 462 | 2438 ± 636 | NS |
| Anesthetic | |||
| Midazolam (mg) | 16 ± 2 | 15 ± 3 | NS |
| Vecuronium (mg) | 16 ± 2 | 16 ± 3 | NS |
| Sufentanil (μg) | 355 ± 39 | 288 ± 76 | 0.002 |
| Propofol (mg) | 822 ± 169 | 737 ± 253 | NS |
LVEF = left ventricular ejection fraction. aMitral and aortic. CPB = cardiopulmonary bypass time. NS = no significant.