Table 4.
Cardiac testing and clinical outcomes during index hospital visit or observation unit care.
| Diagnostic testing, clinical outcomes, and
cardiac-related health care utilization |
Inpatient Care, n/N (%) | OU-CMR, n/N (%) |
|---|---|---|
| Diagnostic testing: index hospital visit | ||
| ≥3 Cardiac markers | 49/57 (86) | 51/53 (96) |
| Stress CMR | 9/57 (16) | 49/53 (92) |
| Resting echo | 1/57 (2) | 1/53 (2) |
| Stress echo | 31/57 (54) | 2/53 (4) |
| Cardiac catheterization | 9/57 (16) | 8/53 (15) |
| Cardiac catheterization without antecedent stress testing | 8/57 (14) | 1/53 (2) |
| ≥3 Cardiac markers and ≥1 stress test or cardiac catheterization | 42/57 (74) | 50/53 (94) |
| Clinical outcomes: index hospital visit | ||
| Acute coronary syndrome | 6/57 (11) | 2/53 (4) |
| Cardiovascular death | 0/57 (0) | 0/53 |
| Myocardial infarction | 1/57 (2) | 1/53 (2) |
| Revascularization | 5/57 (9) | 2/53 (4) |
| PCI | 5/57 (9) | 1/53 (2) |
| CABG | 0/57 (0) | 1/53 (2) |
| Unstable angina | 2/57 (4) | 0/53 (0) |
| Length of stay* | 29.9 (26.7, 35.7) | 25.7 (20.7, 31.3) |
| Hospital admission (defined by transfer to an inpatient bed) | 54/57 (95) | 11/53 (21) |
| Unadjusted direct medical cost, $* | 2,680 (2,408, 3,448) | 2,062 (1,918, 2,367) |
| Clinical outcomes: after discharge through 30 days | ||
| Acute coronary syndrome | 0/57 (0) | 0/53 (0) |
| Cardiac-related health care after discharge through 30 days † | ||
| Cardiac-related office visit | 4/57 (7) | 7/53 (13) |
| Cardiac-related ED visit | 4/57 (7) | 0/53 (0) |
| Cardiac-related hospitalization | 3/57 (5) | 0/53 (0) |
| Cardiac-related procedures | 4/57 (7) | 0/53 (0) |
| Cardiac catheterization | 3/57 (5) | 0/53 (0) |
| Stress test | 1/57 (2) | 0/53 (0) |
| Resting echo | 1/57 (2) | 0/53 (0) |
CMR, Cardiac magnetic resonance; PCI, percutaneous coronary intervention; CABG, coronary artery bypass graft.
*
Data presented as median (first quartile, third quartile).
†
Data from all participants are included according to results of telephone follow-up or record review and are presented as the number of participants with at least 1 of the events.