# The middle layer of an artery, called the media, made of smooth muscle is damaged. #<unk>  occurs when the smooth muscle cells in the area of damage are destroyed. # Small gaps are formed in the wall of the artery which then fill with blood. # Gaps create weakness in the wall of the artery, allowing increasing pressure from blood to expand the gaps resulting in an aneurysm. # Aneurysms have potential for rupture.
Segmental arterial mediolysis
Collateralization
Endovascular aneurysm repair
Electrothermal bipolar vessel sealing
Venous cutdown
Ballottement
Vascular bypass
Angioprevention