Study cohort
This is a multicenter, retrospective, observational cohort study that
includes three academic tertiary referral hospitals. Checklist of items
followed the STROBE statement.13 Clinical data were
collected prospectively at each center and entered a merged database,
which was analysed retrospectively. For this study, patients of interest
were those treated with single stage CVS and CEA between March
1st, 2000, and March 30th, 2020.
Data entry was managed by physicians involved in patient care.
Information collected included demographics, co-morbidities, presenting
symptoms, carotid artery characteristics, the type of concomitant
cardiac (coronary artery bypass surgery, valve surgery or their
combination) intervention, as well as postoperative events
(cerebrovascular events, death, complications, reintervention) within 30
days. Informed consent was obtained from all individual participants
included in the study. For this type of study consent for publication is
not required by the local Institutional Review Board, accordingly to our
National Policy in the matter of Privacy Act on retrospective analysis
of anonymized data.