Study designs of evaluations included in the review
The study designs eligible for inclusion were not explicitly stated, although the studies were required to have more than 10 participants. The designs actually included were not stated, but they appeared to be case series. The duration of follow-up was 30 days.
Specific interventions included in the review
Studies reporting data on angioplasty with stents using cerebral protection devices for the treatment of common or internal carotid stenosis were eligible for inclusion. The included studies used a range of different stent types and cerebral protection devices.
Participants included in the review
Patients with carotid artery stenosis undergoing common or internal carotid angioplasty using PCAS techniques were eligible for inclusion. The mean age of the patients in the included studies was 70.3 years, 67% were female, and 55% (range: 13 to 100) had symptomatic carotid stenosis.
Outcomes assessed in the review
Studies reporting data on stroke or death within 30 days of the PCAS procedure were eligible for inclusion. The outcomes of interest in the review were minor stroke, major stroke, death, and stroke and death combined.
How were decisions on the relevance of primary studies made?
The authors stated that a standardised form was used for study selection, but did not state how the papers were selected for the review, or how many reviewers performed the selection.