Table 3.
Cardiopulmonary bypass performance indicators derived from perfusion electronic data system.
| Performance Core Measures | Aggregate % |
|---|---|
| INVOS percent time <40% | 1.7 ± 4.3 |
| INVOS percent right > left >10% | 7.9 ± 19.0 |
| Percentage MAP <50 mmHg (mmHg*min) | 11.5 ± 8.9 |
| Flow rate time (min) <.25 cardiac index | 1.1 ± 1.3 |
| Percentage of time <1.8 cardiac index | 18.6 ± 21.9 |
| Percentage of time >2.6 cardiac index | 9.3 ± 22.0 |
| Percentage of time line pressure >300 mmHg | 15.0 ± 26.8 |
| Percentage of time venous > arterial temperatures | 1.3 ± 1.8 |
| Percentage of time arterial > patient temperature >6°C | 10.0 ± 17.3 |
| Percentage of time >37°C | 4.0 ± 7.9 |
| Percentage of time VAVD >-40 mmHg | 6.4 ± 20.3 |
| Percentage of time pHa <7.35 | 24.9 ± 25.4 |
| Percentage of time pHa >7.45 | 7.8 ± 16.5 |
| Percentage of time PaCO2 <35 mmHg | 5.0 ± 9.3 |
| Percentage of time PaCO2 >45 mmHg | 36.1 ± 29.6 |
| Percentage of time PaO2 <150 mmHg | 1.6 ± 2.4 |
| Percentage of time PaO2 >250 mmHg | 30.1 ± 25.0 |
| Percentage of time hematocrit <22% | 6.1 ± 19.0 |
| Area under the curve of hematocrit <22% | 22.4 ± 70.0 |
| Change in hematocrit from postinduction to first CPB | 7.7 ± 4.6 |
| Change in hematocrit from postinduction to last CPB | 7.7 ± 5.0 |
| Highest VO2 | 213.1 ± 58.0 |
| Percentage of time SVO2 <60% | .3 ± .8 |
| Area under the curve of SVO2 <60% | 6.7 ± 32.9 |
| Percentage of time BE <−2 | 4.1 ± 11.7 |
| Area under the curve of BE <−2 | −10.9 ± 28.1 |
| Total percentage of events when protocol not followed | 3.0 ± 1.2 |
BE, base excess; MAP, mean arterial pressure; pHa, pH arterial; PaCO 2, partial pressure of carbon dioxide in the arterial blood; PaO2 , partial pressure of oxygen in arterial blood; SVO 2, mixed venous oxygen saturation; VO2, oxygen consumption .