“…1–3 Surgical management of bMCA aneurysms is still controversial and considered a challenge procedure for neurosurgeons, although clipping all aneurysms in a single-stage operation is more preferred 2,4–6,7,8 to eliminate bleeding from unruptured aneurysm in perioperative period. 6,9,10,11 Despite the fact that unilateral management of bMCA aneurysms has been addressed in a few publications, 4,12–14 only one publication describes microscopy-assisted clipping of bMCA aneurysms via a unilateral supraorbital keyhole approach. 13 To our knowledge, there is no study in surgical management of patients with bMCA aneurysms by fully endoscope-controlled techniques.…”