**8.2 The morbidity and mortality of microsurgical excision of cAVMs**

According to *Castel* and *Kantor*, morbidity and mortality after microsurgical excision of cAVM vary from 1.5 to 18.7% and from 0 to 15%, respectively [21]. Morbidity is high (20%) in deep-seated cAVM compared to the smaller cAVM with morbidity of up to 9% (**Tables 8** and **9)**.
