|
Factors associated with the circuit life span |
|||
| Circuit life span, hours |
P value |
||
|
|
|||
| Mean |
Standard deviation |
||
|
|
|||
| Age |
|||
| <12 months |
29.1 |
32.8 |
0.33 |
| >12 months |
33.3 |
35.5 |
|
| Weight |
|||
| <10 kg |
28.8 |
31.9 |
0.24 |
| >10 kg |
34.3 |
37.0 |
|
| Period of time |
|||
| 1996–2001 |
27.0 |
25.0 |
0.43 |
| 2002–2006 |
32.8 |
37.4 |
|
| Pump type |
|||
| PRISMA |
31.8 |
36.1 |
0.98 |
| BSM32 |
29.0 |
27.1 |
|
| Catheter size |
|||
| Two 4 French catheters |
12.5 |
8.6 |
|
| Double-lumen 5 French Double-lumen 6.5 French |
25.7 34.2 |
25.4 37.8 |
0.07 |
| Double-lumen 8–9 French |
22.8 |
20.8 |
|
| Double-lumen 10–11 French |
36.1 |
38.6 |
|
| 4–5 French |
25.0 |
25.0 |
0.04 |
| 6.5–11 French |
33.0 |
36.3 |
|
| Venous access |
|||
| Subclavian |
34.2 |
27.6 |
|
| Femoral |
30.5 |
34.4 |
|
| Jugular |
21.2 |
21.9 |
0.12 |
| Other |
38.2 |
40.5 |
|
| Blood flow rate |
|||
| <50 mL per hour |
29.9 |
34.5 |
0.33 |
| >50 mL per hour |
32.8 |
33.2 |
|
| Filter surface area |
|||
| 0.04 m2 |
27.7 |
31.2 |
|
| 0.15 m2 |
20.6 |
14.5 |
0.18 |
| 0.4 m2 |
43.6 |
51 |
|
| 0.6 m2 |
37.7 |
36.8 |
|
| 0.9 m2 |
38.2 |
53.5 |
|
| 0.04–0.15 m2 |
26.1 |
28.7 |
0.01 |
| 0.4–0.6–0.9 m2 |
38.2 |
40.3 |
|
| Filter membrane |
|||
| Polysulphone |
28.5 |
28.5 |
0.18 |
| Acrylonitrile |
32.0 |
35.3 |
|
| Anticoagulation |
|||
| No heparine |
31 |
16.6 |
0.15 |
| Heparine |
31 |
34.6 |
|
| Heparine dose |
|||
| <10 U/kg per hour |
28.4 |
28.4 |
0.08 |
| >10 U/kg per hour |
34.5 |
34.4 |
|
| <15 U/kg per hour |
28.9 |
31.5 |
0.02 |
| >15 U/kg per hour |
35.5 |
38.9 |
|
| <20 U/kg per hour |
29.1 |
31.5 |
0.008 |
| >20 U/kg per hour |
39.0 |
42.7 |
|
| Hemodiafiltration |
|||
| Yes |
34.0 |
36.6 |
0.001 |
| No |
22.7 |
24.0 |
|
| Ultrafiltration rates |
|||
| <25 mL/kg per hour |
32.2 |
35.4 |
0.10 |
| >25 mL/kg per hour |
21.0 |
17.2 |
|
| Filtration fraction |
|||
| <10% |
31.5 |
34.6 |
0.12 |
| >10% |
18.3 |
13.3 |
|
| Total effluent flow rate |
|||
| >35 mL/kg per hour |
34.6 |
39.6 |
0.06 |
| <35 mL/kg per hour |
25.8 |
22.9 |
|
| Initial creatinine |
|||
| <2 mg/dL |
32.4 26.5 |
36.0 22.3 |
0.39 |
| >2 mg/dL |
|||
| Initial urea |
|||
| <60 mg/dL |
30.9 |
34.1 |
0.99 |
| >60 mg/dL |
30.4 |
32.0 |
|
| Mortality |
|||
| Yes |
32.6 |
36.8 |
0.94 |
| No |
30.2 |
32.6 |
|
| PRISM score |
|||
| <15 |
29.0 |
29.5 |
0.95 |
| >14 |
36.1 |
41.7 |
|
| Lactic acid |
|||
| <4 mmol/L |
28.7 |
29.9 |
0.91 |
| >4 mmol/L |
34.7 |
39 |
|
|
PRISM, pediatric risk of mortality. | |||
del Castillo et al. Critical Care 2008 12:R93 doi:10.1186/cc6965 |
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