Patients with delayed leukoencephalopathy—aneurysm location, size, detection to disappearance intervals, postprocedural symptoms, treatment, and allergy test
| No. | Location of Aneurysm | Largest Diameter of Aneurysm (mm) | Interval between Intervention and Detection of DL (days) | Interval between Intervention and Disappearance of DL (days) | Symptom | Treatment | Allergy Test |
|---|---|---|---|---|---|---|---|
| 1 | IC-SHA | NA | 30 | 48 | Weakness, aphasia | Free radical scavenger | NA |
| 2 | IC-SHA | 8.4 | 28 | – | Weakness | Steroid pulse, antihistamine | Pt, Zn, Mn |
| 3 | IC-SHA | 3.8 | 88 | 188 | None | Observation | NA |
| 4 | MCA | 5.7 | 30 | 521 | Weakness | Steroid pulse | All negative |
| 5 | IC-PcomA | 5.1 | 93 | 360 | Headache | Observation | All negative |
| 6 | IC-PcomA | 5.1 | 28 | 224 | None | Observation | Ir |
| 7 | ACA distal | 5.6 | 103 | 269 | None | Observation | NA |
| 8 | IC-ophthalmic | 5.0 | 110 | 200 | None | Observation | Zn, Sn, Cr |
| 9 | IC-ophthalmic | 3.8 | 89 | 230 | None | Observation | Zn |
| 10 | IC-PcomA | 5.9 | 135 | 366 | None | Observation | NA |
| 11 | IC-cavernous | 17.0 | 55 | – | Weakness | Steroid pulse | All negative |
| 12 | AcomA | 7.9 | 30 | 229 | Weakness, visual field loss | Steroid pulse | NA |
| 13 | AcomA | 5.0 | 105 | – | None | Observation | NA |
| 14 | IC-PcomA | 9.4 | 48 | 360 | None | Observation | NA |
| 15 | IC-SHA | 5.8 | 16 | 87 | Weakness, clumsy hand | Steroid agent, antihistamine | NA |
| 16 | IC-SHA | 14.2 | 99 | 204 | None | Observation | NA |
Note:—NA indicates not available; IC, internal carotid; SHA, superior hypophysial artery; PcomA, posterior communicating artery; ACA, anterior cerebral artery; AcomA, anterior communicating artery; Pt, platinum; Zn, zinc; Mn, manganese; Ir, iridium; Sn, tin; Cr, chromium; –, imaging changes still slightly remaining at the end of the study.