To simplify the above systems of DAVF classification, the two main factors that should be considered to determine aggressiveness of these lesions are: 

DAVF that have bleed (as opposed to those that have not before)
DAVF resulting in cortical venous refluxTreatment decisions are more complicated and require consultation with a neurosurgeon and team familiar with these lesions. Treatment
Indications
Hemorrhage
Neurologic dysfunction or refractory symptoms

Interventions
Embolization
One approach used for treatment is embolization. A six-vessel angiogram is employed to determine the vascular supply to the fistula. Detachable coils, liquid embolic agents like NBCA, and onyx, or combinations of both are injected into the blood vessel to occlude the DAVF. Preoperative embolization can also be used to supplement surgery. Surgery
DAVFs are also managed surgically. The operative approach varies depending on the location of the lesion. Stereotactic radiosurgery
Stereotactic radiosurgery is used for obliterating DAVFs sometimes in conjunction with embolization or surgery, and is considered an important adjunct and sometimes a primary treatment method for non-aggressive DAVFs. Use of this method, however, is limited as obliteration occurs over the course of up to 2–3 years after the delivery of radiation. Epidemiology
10–15% of intracranial AV malformations are DAVFs. There is a higher preponderance in females (61–66%), and typically patients are in their fourth or fifth generation of life. DAVFs are rarer in children. Research
External Manual Carotid Compression is Effective in Patients with Cavernous Sinus Dural Arteriovenous Fistulaetreatment.
It is also one of the most common medicines used in rescue inhalers (short-term bronchodilators to alleviate asthma attacks).As a β2 agonist, salbutamol also has use in obstetrics. Intravenous salbutamol can be used as a tocolytic to relax the uterine smooth muscle to delay premature labor. While preferred over agents such as atosiban and ritodrine, its role has largely been replaced by the calcium channel blocker nifedipine, which is more effective and better tolerated.Salbutamol has been used to treat acute hyperkalemia, as it stimulates potassium flow into cells, thus lowering the potassium in the blood. Adverse effects
The most common side effects are fine tremor, anxiety, headache, muscle cramps, dry mouth, and palpitation. Other symptoms may include tachycardia, arrhythmia, flushing of the skin, myocardial ischemia (rare), and disturbances of sleep and behaviour. Rarely occurring, but of importance, are allergic reactions of paradoxical bronchospasms, urticaria (hives), angioedema, hypotension, and collapse. High doses or prolonged use may cause hypokalemia, which is of concern especially in patients with kidney failure and those on certain diuretics and xanthine derivatives.Salbutamol metered dose inhalers have been described as the “single biggest source of carbon emissions from NHS medicines prescribing” due to the propellants used in the inhalers. Dry powder inhalers are recommended as a low-carbon alternative. Pharmacology
The tertiary butyl group in salbutamol makes it more selective for β2 receptors, which are the predominant receptors on the bronchial smooth muscles.