Table 5.
Characteristics of 9 patients showing symptomatic (S. No. 1-6) and asymptomatic (S. No. 7-9) ischemic changes
| S. No. | Patient & aneurysm | WFNS grade | No. of times temporary clips applied | Maximum duration of a single temporary clip | Total duration of application | Mean time interval between temporary clips | Perforators | Delay of appearance of ICG | Post- operative deficits | Post-operative DW-MRI | Modified Rankin Scale at one month |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 40y/F, Rt A1-A2 junction aneurysm | II | 3 | 2 min 10 secs | 6 min 50 secs | 2 min 20 secs | Number decreased after 3rd clip | Appearance delayed after 2nd clip | Right hemiparesis | Left anterior frontal lobe infarct | 1 |
| 2 | 44y/M, Rt MCA aneurysm | II | 4 | 2 min | 6 min 20 secs | 3 min 10 secs | Remained same | Appearance delayed after 4th clip | Left hemiplegia | Right thalamic infarct | 2 |
| 3 | 62y/M, Acomm aneurysm | II | 4 | 2 min 30 secs | 7 min | 2 min 10 secs | Number decreased after 4th clip | Appearance delayed after 2nd clip | Minimal right hemiparesis | Left frontal parasagittal area infarct | 1 |
| 4 | 45y/M, Rt DACA aneurysm | I | 4 | 2 min 40 secs | 6 min 50 secs | 3 min 2 secs | Number decreased after 3rd clip | Appearance delayed after 2nd clip | Minimal left hemiparesis | Right frontal infarct | 1 |
| 5 | 38y/F DACA aneurysm | III | 2 | 2 min 20 secs | 4 min 10 secs | 2 min 20 secs | Number decreased after 3rd clip | Appearance delayed after 1st clip | Right hemiplegia with re-bleed | Left frontal infarct | 6 |
| 6 | 38y/F Lt ICA PComm | II | 5 | 2 min 20 secs | 8 min | 3 min 34 secs | Number decreased after 4th clip | Appearance delayed after 3rd clip | Right hemiplegia | Left thalamic and adjoining internal capsule infarct | 1 |
| 7 | 32y/M Acomm artery aneurysm | II | 2 | 1 min 10 secs | 2 min 10 secs | 3 min 30 secs | Remained same | Appearance delayed after 2nd clip | Nil | Small parasagittal area infarct | 0 |
| 8 | 56y/M Rt MCA aneurysm | II | 3 | 2 min 10 secs | 4 min 30 secs | 3 min 20 secs | Remained same | Appearance delayed after 2nd clip | Nil | Small nfarct at frontal operculum | 1 |
| 9 | 43y/F Acomm artery aneurysm | III | 3 | 1 min 40 secs | 3 min 50 secs | 2 min 10 secs | Remained same | Appearance delayed after 3rd clip | Nil | Small caudate nucleus infarct | 1 |
WFNS, World Federation of Neurosurgical Societies; ICG, indocyanine green; DW-MRI, diffusion weighted magnetic resonance image; Acomm, anterior communicating; MCA, middle cerebral artery; ACA, anterior cerebral artery; DACA, distal anterior cerebral artery; ICA-PComm. internal carotid artery-posterior communicating