Table 3. Number of true positive, false positive and false negative events, together with the positive predictive value for each clinical alarm scenario using Event Surveillance software.
| Scenario | # Events |
True
Positives (#Patients) |
False
Positive Artifact |
False
Positive Insufficient definition |
Positive
Predictive Value |
False
Negative |
|---|---|---|---|---|---|---|
| SVT+BP | 221 | 170(10) | 17 | 22 | 0.8 | 9(7) |
| Vtach+BP | 1 | 1(1) | 0 | 0 | 1.0 | 0 |
| LV shock | 42 | 34(6) | 8 | 0 | 0.81 | 1 |
| Tamponade | 24 | 1(1) | 23 | 0 | 0.04 | 1 |
| Hypovolemia | 29 | 8 | 21 | 0 | 0.27 | 2 |