Table 2.
The patients without spontaneous shunt flow reduction or obliteration during follow-up
| Case no | Age (years), sex | Side, location | Feeding artery | Draining vein | Stenosis or occlusion of the draining veins | Initial symptom | Spontaneous change in symptoms | Spontaneous change in MRI findings | Intervention | Clinical outcome (modified Rankin scale score) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 60, F | Lt. TS/SS | OA, MMA, APhA, VA | Internal jugular vein, Inferior petrosal sinus, transverse sinus | No | Tinnitus | No | No | No | 1 |
| 2 | 68, M | Lt. ACC | APhA, VA | Internal jugular vein | No | Tinnitus | No | No | No | 1 |
| 3 | 45, M | Rt. TS/SS | OA | Sigmoid sinus | Yes | None | Yes, new onset of tinnitus | No | No | 0 |
| 4 | 71, M | Rt. ACC | APhA, OA | Internal jugular vein, sigmoid sinus | No | Tinnitus | Yes, worsening | No | No | 1 |
| 5 | 78, F | Lt. TS/SS | OA, MMA, PAA | Sigmoid sinus, transverse sinus | No | Tinnitus | No | No | Yes (TAE) | 0 |
| 6 | 69, F | Lt. CS | MHT, inferolateral trunk | Inferior petrosal sinus | No | Headache, eye movement disorder | No | No | Yes (TVE) | 0 |
| 7 | 65, F | Lt. TS/SS | OA, MMA, PAA | Sigmoid sinus | Yes | Tinnitus | No | No | Yes (TAE) | 0 |
| 8 | 74, M | Confluence | OA, VA | Transverse sinus | Yes | Higher brain dysfunction | Yes, worsening | No | Yes (TAE) | 4 |
| 10 | 47, F | Rt. TS/SS | OA, MMA | Sigmoid sinus | No | Tinnitus | No | No | No | 1 |
| 11 | 59, M | Confluence | OA, MMA | Occipital sinus, superior sagittal sinus, straight sinus | Yes | Tinnitus | No | No | Yes (TAE) | 1 |
| 12 | 86, M | Lt. TS/SS | OA, MMA, VA | Sigmoid sinus | No | None | No | No | No | 0 |
| 13 | 32, F | Rt. ACC | OA, VA | Internal vertebral venous plexus, cervical venous plexus | No | Tinnitus | No | No | Yes (TAE) | 0 |
| 14 | 63, F | Lt. TS/SS | OA, MMA, STA | Sigmoid sinus | No | Tinnitus, seizure | No | No | No | 0 |
| 16 | 42, F | SSS | MMA, Ophthalmic artery (recurrent meningeal artery) | Superior sagittal sinus | No | Headache | No | No | No | 1 |
| 17 | 58, M | Lt. ACC | OA, APhA, VA | Internal jugular vein, inferior petrosal sinus | No | Tinnitus | No | No | No | 1 |
| 18 | 62, M | Rt. TS/SS | OA, APhA | Sigmoid sinus, transverse sinus | No | None | Yes, new onset of tinnitus | No | No | 1 |
| 20 | 74, M | Rt. TS/SS | OA, MMA, STA, deep cervical artery | Transverse sinus, sigmoid sinus | No | Tinnitus | No | No | Yes (TAE/TVE) | 2 |
| 23 | 77, F | Lt. TS/SS | OA, STA, PAA | Sigmoid sinus | Yes | Tinnitus | No | No | Yes (TAE) | 0 |
| 24 | 40, M | Rt. TS/SS | OA, APhA | Sigmoid sinus | No | Headache | Yes, headache disappear (6 M), new onset of tinnitus (36 M) | No | No | 1 |
| 25 | 78, M | Rt. ACC | APhA, VA, artery of the pterygoid canal | Internal jugular vein | No | Tinnitus | No | No | No | 1 |
| 26 | 67, F | Rt. CS | MHT, APhA | Inferior petrosal sinus, superior petrosal sinus | No | Eye movement disorder | No | No | Yes (TAE/TVE, radiosurgery) | 0 |
| 27 | 74, M | Rt. CS | MHT, artery of the pterygoid canal, artery of foramen rotundum, APhA | Inferior petrosal sinus | No | None | No | No | No | 0 |
| 28 | 76, F | Lt. TS/SS | MMA, OA | Sigmoid sinus, transverse sinus | No | Tinnitus | No | No | Yes (TAE/TVE) | 1 |
TS/SS transvers sinus/sigmoid sinus, ACC anterior condylar canal, CS cavernous sinus, SSS superior sagittal sinus, MMA middle meningeal artery, AMA accessory meningeal artery, APhA ascending pharyngeal artery, OA occipital artery, VA vertebral artery, STA superficial temporal artery, PAA posterior auricular artery, MHT meningohypothyseal trunk, TAE transarterial embolization, TVE transvenous embolization