Table 5 |
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|
Examples of application of the Bayesian model |
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|
Variables and model calculations |
Case A |
Case B |
|
|
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|
DO2I (mL/minute/m2) |
427.9 |
332.3 |
|
Inotropic support after CPB |
NO |
NO |
|
PVD and/or CD |
YES |
NO |
|
Preoperative creatinine (mg/dL) |
1.0 |
1.2 |
|
IABP after CABG |
NO |
NO |
|
Weight (kg) |
74 |
52 |
|
REDO |
NO |
NO |
|
Duration of CPB (minutes) |
150 |
185 |
|
Age (years) |
53 |
73 |
|
WBC (103/mm3) |
12 |
7.97 |
|
Preoperative IABP |
NO |
NO |
|
Emergency operation |
NO |
NO |
|
p(x|N) |
1.24 × 10-11 |
4.29 × 10-11 |
|
p(x|M) |
7.03 × 10-12 |
4.80 × 10-11 |
|
Bayes posterior probability of morbidity (DT = 0.427) |
0.361 (LoRi) |
0.528 (HiRi) |
|
FC score (DT = 4) |
5 (HiRi) |
6 (HiRi) |
|
PC score (DT = 4) |
4 (HiRi) |
4 (HiRi) |
|
Higgins score (DT = 6) |
10 (HiRi) |
10 (HiRi) |
|
|
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|
CABG, coronary artery bypass graft; Case A, a patient without complications; Case B, a patient with a cardiovascular complication; CD, carotid disease; CPB, cardiopulmonary bypass; DO2I, oxygen delivery index; DT, decision threshold; FC, fully customized; HiRi, classification at high risk of morbidity; IABP, intra-aortic balloon pump; LoRi, classification at low risk of morbidity; PVD, peripheral vascular disease; PC, partially customized; p(x|M), probability density function of morbidity; p(x|N), probability density function of normal condition; REDO, re-operation; WBC, white blood cells. |
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Biagioli et al. Critical Care 2006 10:R94 doi:10.1186/cc4951 |
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