Restenosis after carotid angioplasty and stenting: a follow-up study with duplex ultrasonography.
OBJECTIVE
To prospectively document the incidence, location, risk factors for and clinical consequences of restenosis after carotid artery angioplasty and stenting (CAS).


METHODS
Serial duplex and neurological examinations were performed in 217 patients one day (n = 216), 3 (n = 189), 12 (n = 129) and 24 (n = 48) months, after CAS. The relationship between patient, lesion and procedure variables and restenosis was determined at 12 months.


RESULTS
The prevalence of restenosis > or = 50% was 14, 16, 18, and 21%, respectively, and was only significantly related with loss of proximal stent apposition (odds ratio 3.4, 95% confidence interval: 1.0-11.7, p < 0.05). Four restenoses were symptomatic.


CONCLUSIONS
Restenosis after CAS is common, unpredictable but infrequently symptomatic.
Christiaans
M H
MH
Department of Clinical Neurophysiology, St Antonius Hospital, Nieuwegein, Utrecht 3430 EM, The Netherlands.
Ernst
J M P G
JM
Suttorp
M J
MJ
van den Berg
J C
JC
Overtoom
T Th C
TT
Kelder
J C
JC
Mauser
H W
HW
Ackerstaff
R G A
RG
D000368:Aged; D000800:Angioplasty, Balloon; D016893:Carotid Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D016894:Endarterectomy, Carotid; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D012008:Recurrence; D015607:Stents; D018616:Ultrasonography, Doppler, Duplex