Impact of cerebral protection devices on early outcome of carotid stenting.

PURPOSE: To evaluate the impact of cerebral protection devices on the procedural safety and outcome of carotid stent procedures.

METHODS

From June 1997 to July 2001, 275 consecutive patients (208 men; mean age 71 +/- 7.4 years) underwent percutaneous angioplasty and/or stenting of the extracranial carotid artery. In the first 125 (45.4%) patients, the procedures were performed without cerebral protection. After January 2000, protection devices were routinely used (150 [54.6%] patients), including the Angioguard filter, GuardWire occlusion system, TRAP Vascular Filtration System, EPI Filter Wire, NeuroShield, Parodi Anti-Embolism System, and Medicorp occlusive balloon.

RESULTS

The percutaneous procedures were effective in 273 (99.3%) patients. No death or major stroke occurred in either group. In the unprotected group, 5 (4.0%) complications occurred: 3 (2.4%) minor strokes, 1 (0.8%) transient ischemic attack (TIA), and 1 (0.8%) subarachnoid hemorrhage. In the patients treated under cerebral protection, there were 2 (1.3%) complications: 1 (0.7%) minor stroke and 1 (0.7%) subarachnoid hemorrhage. There were 4 (3.2%) periprocedural embolic complications in the unprotected group versus 1 (0.7%) in the protected patients.

CONCLUSIONS

Our data suggest that percutaneous dilation and stenting of the carotid arteries protected by cerebral protection devices is feasible and effective. In a consecutive series, the use of the cerebral protection systems reduced the acute neurological event rate related to embolic complications by 79%.