Patient and dural arteriovenous fistula characteristics
| Patient characteristics | ||||||
| Number of patients | 53 | |||||
| Age (years) | 59.8±12.8 (30–83) | |||||
| Sex | Female 22.6% | Male 77.4% | ||||
| Comorbidities | Arterial hypertension 50.9% | Diabetes mellitus 15.1% | Previous stroke 11.3% | CAD 9.4% | ||
| Symptoms | Headache 32.1% | Seizure 26.4% | Tinnitus 13.2% | Dizziness 13.2% | ||
| Neuropsychiatric 13.2% | Paresis 7.6% | Paresthesia 5.7% | Asymptomatic 17.0% | |||
| Suspected underlying cause for DAVF | Unknown 92.5% | Trauma 3.8% | Sinus thrombosis 1.9% | Coagulopathy 1.9% | ||
| Baseline mRS score | 0 17.0% | 1 45.3% | 2 18.9% | 3 3.8% | 4 9.4% | 5 5.7% |
| DAVF characteristics | ||||
| Hemorrhage | Yes 18.9% | No 81.1% | ||
| Location | Superior sagittal sinus 24.5% | Transverse sinus 20.8% | Torcular 15.1% | Tentorium 15.1% |
| Temporal bone 5.7% | Lesser sphenoid wing 5.7% | Sigmoid sinus 5.7% | Other* 7.6% | |
| Cognard type | III 56.6% | IV 41.5% | V 1.9% | |
| Involved arterial feeder territories | Middle meningeal a 64.2% | Occipital a 37.7% | Posterior meningeal a 15.1% | Ascending pharyngeal a 9.4% |
| Superficial temporal a 7.6% | Internal carotid a† 5.7% | Pial a‡ 5.7% | Bilateral feeders 28.3% | |
| Additional findings | Venous congestion 37.7% | Venous aneurysms 17.0% | Arterial aneurysms§ 1.9% | |
*Superior petrosal sinus (3.8%), skull base (1.9%), and frontobasal (1.9%).
†Dural branches.
‡Supply by pial arteries.
§Directly related to the fistula.
a, artery; CAD, coronary artery disease; DAVF, dural arteriovenous fistula; mRS, modified Rankin Scale.