Table 1.
Clinical Characteristics of patients with PMV.
| Characteristic | Successful, n = 109 |
Fail, n = 63 |
Total, n = 172 |
p-Value |
|---|---|---|---|---|
| Male, n (%) | 52 (47.7%) | 32 (50.8%) | 84 (49%) | 0.7525 |
| Age, years, mean ± SD | 74.02 ± 12.71 | 74.63 ± 11.79 | 74.24 ± 12.35 | 0.7535 |
| BMI, kg/m2, means ± SD | 22.96 ± 4.211 | 24.40 ± 4.485 | 23.49 ± 4.356 | 0.0366 |
| APACHE II score, mean ± SD | 16.25 ± 4.516 | 17.65 ± 4.78 | 16.76 ± 4.65 | 0.0563 |
| ICU length of stay, mean ± SD | 27.63 ± 10.26 | 31.71 ± 13.14 | 29.13 ± 11.53 | 0.0249 |
| ICU indication | ||||
| Pneumonia with respiratory failure | 53 (48.6%) | 32 (50.8%) | 83 (%) | 0.8744 |
| Septic shock | 4 (3.7%) | 3 (4.8%) | 7 (%) | 0.7078 |
| Myocardial infarction | 6 (5.5%) | 1 (1.6%) | 7 (%) | 0.4249 |
| Cardiac arrest | 7 (6.42%) | 9 (14.3%) | 16 (%) | 0.1052 |
| Acute decompensate heart failure | 4 (3.7%) | 2 (3.2%) | 6 (%) | >0.9999 |
| Intracranial hemorrhage | 8 (7.3%) | 1 (1.6%) | 9 (%) | 0.1573 |
| Massive GI bleeding | 2 (1.8%) | 0 (0%) | 2 (%) | 0.5333 |
| Ischemic stroke | 13 (11.9%) | 5 (7.9%) | 18 (%) | 0.4529 |
| Status epilepsy | 5 (4.6%) | 2 (3.2%) | 7 (%) | >0.9999 |
| Cardiac surgery | 1 (0.9%) | 4 (6.4%) | 5 (%) | 0.0608 |
| Abdominal surgery | 4 (3.7%) | 1 (1.6%) | 5 (%) | 0.6534 |
| Head and neck surgery | 1 (0.92%) | 0 (0%) | 1 (%) | >0.9999 |
| Thoracic surgery | 1 (0.92%) | 0 (0%) | 1 (%) | >0.9999 |
| Spinal cord injury | 0 (0%) | 3 (4.8%) | 3 (%) | 0.0477 |
| Length of mechanical ventilation before RCC admission, mean ± SD | 27.18 ± 9.81 | 31.59 ± 13.11 | 28.8 ±11.29 | 0.0133 |
| Tracheostomy, n (%) | 36 (33%) | 41 (66.1%) | 77 (44.8%) | <0.0001 |
| Underlying disease | ||||
| Hypertension, n (%) | 62 (56.9%) | 27 (42.9%) | 89 (51.8%) | 0.0836 |
| Diabetes mellitus, n (%) | 50 (45.9%) | 25 (39.7%) | 75 (43.6%) | 0.5235 |
| Cardiovascular disease, n (%) | 54 (49.5%) | 32 (50.8%) | 86 (50%) | >0.9999 |
| Chronic lung disease, n (%) | 18 (16.5%) | 13 (20.6%) | 31 (18%) | 0.5399 |
| Chronic kidney disease, n (%) | 35 (32.1%) | 20 (31.8%) | 55 (32%) | >0.9999 |
| Liver cirrhosis, n (%) | 6 (5.5%) | 3 (4.8%) | 9 (5.2%) | >0.9999 |
| Cerebrovascular disease, n (%) | 51 (46.8%) | 16 (25.4%) | 67 (39%) | 0.0060 |
| Malignancy, n (%) | 24 (22%) | 20 (31.8%) | 44 (40.4%) | 0.2040 |
| Death, n (%) | 20 (18.4%) | 19 (30.2%) | 39 (22.7%) | 0.0898 |
| Death at ward, n (%) | 20 (18.4%) | 0 (0%) | ||
| Death at RCC, n (%) | 0 (0%) | 19 (30.2%) | ||
| Nutritional parameters | ||||
| Daily protein intake, g/kg/day, mean ± SD |
1.29 ± 0.29 | 0.84 ± 0.23 | 1.13 ± 0.34 | <0.0001 |
| Daily calories intake, kcal/kg/day, mean ± SD |
28.04 ± 6.18 | 19.9 ± 5.83 | 25.06 ± 7.21 | <0.0001 |
| Δ albumin, g/dL, mean ± SD | 0.25 ± 0.35 | 0.002 ± 0.48 | 0.15 ± 0.43 | 0.0004 |
| Daily whey protein intake, g/kg/day, mean ± SD |
0.58 ± 0.54 | 0.37 ± 0.36 | 0.5 ± 0.49 | 0.0075 |
BMI, body mass index; APACHE II, Acute Physiology and Chronic Health Evaluation II; Δ albumin, difference between the 4th week and baseline serum albumin levels.