Number of patients positive for embolic signals and number of signals before and after start of secondary prevention in relation to the administered antithrombotic agent
| Secondary prevention initiated after 1st TCD monitoring | ||||
|---|---|---|---|---|
| Antiplatelet agent | Intravenous heparin | |||
| ES positive | ES/hour Mean (range) | ES positive | ES/hour Mean (range) | |
| *Patients received ticlopidine (one patient) or clopidogrel (five patients) added on ASA. | ||||
| TCD, transcranial Doppler; ES, embolic signals; ASA, acetylsalicylic acid. | ||||
| No antithrombotic premedication: | ||||
| 1st TCD monitoring | 23 | 15.8 (1–46) | 10 | 15.6 (3–57) |
| 2nd TCD monitoring | 10 | 3.3 (1–6) | 10 | 15.3 (3–67) |
| Preexisting ASA, stopped after 1st TCD: | ||||
| 1st TCD monitoring | 2 | 34.5 (15–54) | ||
| 2nd TCD monitoring | 2 | 38.5 (20–57) | ||
| Preexisting ASA, continued: | ||||
| 1st TCD monitoring | 6 | 8.5 (3–19) | 3 | 6.3 (1–10) |
| 2nd TCD monitoring | 0* | 3 | 7.7 (1–5) | |