Research Article
Can We Exclude the Diagnosis of Non-ST Segment Myocardial Infarction on the Basis of a Single Troponin I and a Symptom Duration ≥8 Hours?
Table 2
Presenting characteristics of the study population.
| | Arrival (%) | |
| | Medical code | 47 (40.9) | | Trauma activation | 9 (7.8) |
| | Presenting symptom (%) | | | Chest pain | 50 (43.5) | | Shortness of breath | 35 (30.4) | | Altered mental status | 10 (8.7) | | Cardiac/respiratory arrest | 8 (7.0) | | Syncope | 4 (3.5) | | Other | 12 (10.4) |
| | Duration of symptoms, h (%) | | | ≤1 hr | 61 (53.0) | | >1 hr–≤4 hr | 22 (19.1) | | >4 hr–≤8 hr | 7 (6.1) | | >8 hr–24 hr | 10 (8.7) | | >24 hr | 15 (13.0) |
| | ECG diagnostic of ischemia (%) | | | Yes | 38 (33.0) | | No | 77 (67.0) |
| | Ongoing symptoms (%) | | | Yes | 109 (94.8) | | No | 6 (5.2) |
| | ACLS (%) | | | Cardioversion | 8 (7.0) | | Chest compression | 8 (7.0) | | Code drugs | 9 (7.8) |
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ACLS: advanced cardiac life support.
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