title: Effects of carotid artery stenosis treatment on blood pressure.
abstract: OBJECTIVE
  The purpose of this study was to evaluate and compare the long-term effects of carotid endarterectomy (CEA) and carotid artery stenting (CAS) on blood pressure (BP).
  
  
  METHODS
  Between January 2003 and December 2009, 134 patients underwent 145 procedures for treatment of carotid artery stenosis. Patients with at least 1 year of clinical and radiographic follow-up after treatment were included in this study. A total of 102 patients met this criterion and were placed in the CEA group (n = 59) or the CAS group (n = 43) according to their treatment. The percentage change in BP decrement and the number of patients with a normotensive BP were evaluated and compared between the groups.
  
  
  RESULTS
  There were no significant differences between the groups with regard to baseline characteristics. Compared with the pretreatment BP, the follow-up BPs were significantly decreased in both groups. At the 1-year followup, the percentage change in the BP decrement was greater in the CAS group (percentage change: systolic BP 9.6% and diastolic BP 12.8%) than in the CEA group (percentage change: systolic BP 5.9% [p = 0.035] and diastolic BP = 8.1% [p = 0.049]), and there were more patients with a normotensive BP in the CAS group (46.5%) than in the CEA group (22.0%, p = 0.012).
  
  
  CONCLUSIONS
  Both CEA and CAS have BP-lowering effects. Carotid artery stenting seems to have a better effect than CEA on BP at the 1-year follow-up.
authors.affiliation: Department of Neurosurgery, Inha University School of Medicine and Hospital, Incheon, Republic of Korea.
authors.forename: Joonho
authors.initials: J
authors.lastname: Chung
authors.forename: Byung Moon
authors.initials: BM
authors.lastname: Kim
authors.forename: Ho Kyu
authors.initials: HK
authors.lastname: Paik
authors.forename: Dong-Keun
authors.initials: DK
authors.lastname: Hyun
authors.forename: Hyeonseon
authors.initials: H
authors.lastname: Park
mesh_terms: D000368:Aged; D000800:Angioplasty, Balloon; D001794:Blood Pressure / Q000502:physiology*; D016893:Carotid Stenosis / Q000503:physiopathology / Q000628:therapy*; D016894:Endarterectomy, Carotid; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome