Table 2.
Baseline and intraoperative characteristics of the study population.
| Perioperative features | Unit | Value(mean ± SD) | Perioperative features | Unit | Value(mean ± SD) |
|---|---|---|---|---|---|
| Baseline Information | SD of MAP | mmHg | 10.97 ± 9.97 | ||
| Age | (years) | 43.33 ± 18.83 | Average MAP | mmHg | 83.82 ± 4.34 |
| Height | (cm) | 162.48 ± 17.52 | Arterial Blood Gases | ||
| Weight | (kg) | 64.19 ± 24.51 | pH | – | 7.38 ± 0.13 |
| Male | (%) | 45.56 | Hb | (g/dL) | 12.03 ± 2.84 |
| Baseline SBP | mmHg | 124.04 ± 28.25 | PaCO2 | (mmHg) | 39.37 ± 5.35 |
| Baseline DBP | mmHg | 72.11 ± 17.38 | PaO2 | (mmHg) | 139.73 ± 94.07 |
| Preoperative diagnosis | HCO₃⁻ | (mmol/L) | 23.94 ± 2.59 | ||
| Hypertension | (%) | 25.38 | K⁺ | (mmol/L) | 3.55 ± 0.52 |
| Cardiac insufficiency | (%) | 5.31 | Ca²⁺ | (mmol/L) | 1.11 ± 0.06 |
| Renal insufficiency | (%) | 1.95 | Na⁺ | (mmol/L) | 137.31 ± 6.72 |
| Surgical Classification | SO2 | (%) | 98.21 ± 1.50 | ||
| Gynecological | (%) | 13.86 | Lactate | (mmol/L) | 1.24 ± 0.74 |
| Hepatic | (%) | 2.61 | AG | (mmol/L) | 7.85 ± 1.01 |
| Orthopedic | (%) | 12.95 | BE | (mmol/L) | −0.84 ± 3.03 |
| General | (%) | 12.66 | Intraoperative Drug | ||
| Urological | (%) | 8.21 | Sevoflurane | (%) | 2.78 ± 1.70 |
| Neurosurgical | (%) | 4.86 | Propofol | (mg) | 172.79 ± 224.92 |
| Nephrotic | (%) | 9.81 | Dexmedetomidine | (ug) | 58.54 ± 90.01 |
| Gastrointestinal | (%) | 14.99 | Midazolam | (mg) | 0.95 ± 0.91 |
| Thoracic | (%) | 2.94 | Remifentanil | (ug) | 720.45 ± 821.51 |
| Vascular | (%) | 1.71 | Sufentanil | (ug) | 28.27 ± 26.92 |
| Otolaryngologic | (%) | 10.97 | Methoxamine | (mg) | 1.68 ± 7.28 |
| Fluid Balance | Rocuronium | (mg) | 37.8 ± 41.92 | ||
| Crystalloid solution | (ml) | 1214.44 ± 980.14 | Dexamethasone | (mg) | 1.97 ± 3.82 |
| Colloidal solution | (ml) | 247.25 ± 438.49 | Atropine | (mg) | 0.26 ± 0.38 |
| Urine Output | (ml) | 324.81 ± 275.35 | Ephedrine | (mg) | 2.43 ± 3.34 |
| Blood loss | (ml) | 82.41 ± 320.20 | Noradrenaline | (ug) | 714.99 ± 163.51 |
| Intraoperative vital signs | Furosemide | (mg) | 1.81 ± 6.52 | ||
| Average HR | beats/min | 73.29 ± 12.25 | Operation Duration | ||
| Average BIS | – | 47.83 ± 7.91 | Duration | (hours) | 2.31 ± 2.60 |
SBP: Systolic blood pressure; DBP: Diastolic blood pressure; HR: Heart rate; pH: Potential of hydrogen; BIS: Bispectral Index; MAP: mean arterial pressure; THbc: Hemoglobin; PaCO2: Partial pressure of arterial carbon dioxide; PaO2: Partial pressure of arterial oxygen; HCO₃⁻: Bicarbonate ion; K⁺: Potassium ion; Ca²⁺: Calcium ion; Na: Sodium ion; SO2: Oxygen saturation; AG: Anion gap; BE: Base excess.