Contraindications present to prehospital thrombolysis (as judged by paramedics) | ECG criteria for prehospital thrombolysis present (as judged by expert panel) | ECG criteria correctly identified by paramedic | Correct paramedic decision for prehospital thrombolysis |
---|---|---|---|
Breathing influenced pain | No | Yes | Yes |
Systolic BP >160 mm Hg | |||
No ST elevation | |||
Continuous symptoms started >6 h ago | No | Yes | Yes |
No ST elevation | |||
Possibility of streptokinase previously given | |||
Systolic BP >160 mm Hg | No | Yes | Yes |
No ST elevation | |||
QRS complex wider than 0.14 seconds | |||
Systolic BP >160 mm Hg | Yes | Yes | Yes |
Suspicion of peptic ulcer | |||
Systolic BP >160 mm Hg | Yes | Yes | Yes |
Systolic BP >160 mm Hg | Yes | Yes | Yes |
Pulse <50 bpm | Yes | Yes | Yes |
Continuous symptoms started >6 h ago | Yes | No | Yes |
No ST elevation | |||
QRS complex wider than 0.14 seconds |