Table 1.
Inflammation-based prognostic scores and postoperative pulmonary risk scoring system.
| Parameters | Score | ||||
| CONUT | 1. Albumin | ≥ 3.50 (0) | 3.00–3.49 (2) | 2.50–2.99 (4) | < 2.50 (6) |
| 2. Total lymphocyte count, /mL | > 1,600 (0) | 1,200–1599 (1) | 800–1,199 (2) | < 800 (3) | |
| 3. Total cholesterol, mg/dL | > 180 (0) | 140–180 (1) | 100–139 (2) | < 100 (3) | |
| Assessment (1 + 2 + 3) | Normal (0–1) | Mild (2–4) | Moderate (5–8) | Severe (9–12) | |
| PNI | Calculation | Score | |||
| Albumin (g/L) + 5 × total lymphocyte count/mL ≥ 45 | 0 | ||||
| Albumin (g/L) + 5 × total lymphocyte count/mL < 45 | 1 | ||||
| GPS | Calculation | Score | |||
| C-reactive protein ≤ 10 mg/L and albumin ≥ 35 g/L | 0 | ||||
| C-reactive protein ≤ 10 mg/L and albumin < 35 g/L | 1 | ||||
| C-reactive protein > 10 mg/L and albumin ≥ 35 g/L | 1 | ||||
| C-reactive protein > 10 mg/L and albumin < 35 g/L | 2 | ||||
| ARISCAT* | Risk factors | Risk score | |||
| Age, year | ≤ 50 (0) | 51–80 (3) | > 80 (16) | ||
| Preoperative SpO2, % | ≥ 96 (0) | 91–95 (8) | ≤ 90 (24) | ||
| Respiratory infection in last month | No (0) | – | Yes (17) | ||
| Preoperative Hb ≤ 10 g/dL | No (0) | – | Yes (11) | ||
| Surgical incision site | Peripheral (0) | Upper abdominal (15) | Intrathoracic (24) | ||
| Duration of surgery, hours | < 2 (0) | 2–3 (16) | > 3 (23) | ||
| Emergency procedure | No (0) | – | Yes (8) | ||
| Risk class* | No. of points in risk score (pulmonary complication rate) | ||||
| Low | < 26 (1.6%) | ||||
| Intermediate | 26–44 (13.3%) | ||||
| High | < 44 (42.1%) | ||||
*ARISCAT risk class is determined by sum of each score of risk factors.
CONUT controlling nutritional status, PNI Prognostic nutritional index, GPS Glasgow prognostic score, ARISCAT The Assess Respiratory Risk in Surgical Patients in Catalonia Risk Index: Independent Predictors of Postoperative Pulmonary Complications, SpO2 oxygen saturation, Hb hemoglobin.