Non-functioning brachial axillary graft

i don't know where to begin with this case, ESRD patient with non functioning avf graft underwent the following procedure

1. expoloration of the brachial axillary graft
2. thrombectomy of the graft both distally and proximally
3. surgical excision of the graft due to protusion of multiple wire through the graft lumen
4. attempted subclavian hemodialysis catheter placement with non-passage of the guidewire.

Please help!!!!!!

Non-functioning brachial axillary graft