Nerve compression syndrome or compression neuropathy, also known as entrapment neuropathy, is a medical condition caused by direct pressure on a single nerve.

The common cause of all these nerve compression syndromes is increased pressure - usually from bone or connective tissue - on a nerve in the wrist, arm, or elbow.

While the procedure has been reported to be generally safe for MS patients, severe complications related to the angioplasty and stenting that have been reported include intracranial hemorrhage, stent migration into a renal vein, thrombosis and nerve compression syndrome of cranial nerves XI and XII.