Table 2.
Summary of the measures before and after the intervention
|
Before the intervention
(Control group) |
Following the
Intervention (Study group) (Study group) |
|
|---|---|---|
| Total cases of stroke | 686 | 639 |
| Echocardiography studies | 497 | 332 |
| Stroke cases who had echocardiography | 68.6% (471/686) | 47.5% (304/639) OR 0.4, P < 0.001 |
| Echocardiography studies to yield one positive result a | 26 | 13 |
| Echocardiography studies to change management in one case | 50 | 25 |
| Diagnostic yield of echocardiography b | 3.8% (19/497) | 7.8% (26/332) OR 2.1, P = 0.01 |
| Lacunar strokes who had echocardiography | 62.8% (135/215) | 30.8% (74/240) OR 0.2, P < 0.001 |
| Atrial fibrillation with stroke who had echocardiography | 63.5% (87/137) | 34% (64/173) OR 0.4, P < 0.001 |
| Bubble studies | 8% (38/471) | 13.5% (31/304) OR 1.8, P = 0.02 |
| Parentage of TTE ordered by hospitalists vs neurologists | 77% vs. 15% | 63% vs. 22% |
a) High embolic potential finding. b) Percentage of positive echocardiography studies per 100 studies. OR: Odds ratio; TTE: Transthoracic echocardiography.