Feasibility and efficacy of stent redilatation in aortic coarctation.
OBJECTIVE
We evaluated the efficacy and safety of stent redilation in patients with aortic coarctation (COA).


RESULTS
In our retrospective study of 28 stent redilation procedures on 22 patients, the interval between implantation and redilation ranged from 2.5 month to 11 years (median 18 months). Ten patients had native COAs, one had repaired interrupted aortic arch. The remaining patients had residual COAs after surgery. Stent redilation was successful in 26 procedures. Pressure gradients decreased from a mean of 26 +/- 13.8 mm Hg to 7.9 +/- 6.52 mm Hg (P < 0.001). The mean diameter of the stents increased from 9.19 +/- 3.29 mm to 12.1 +/- 3.68 mm (P < 0.001). In a patient with Williams-Beuren syndrome, massive neointimal proliferation made stent redilation impossible. One other patient developed aortic aneurysm after redilation and was operated after 3 years.


CONCLUSIONS
Stent redilation for aortic COA is a safe and successful procedure.
Zanjani
Keyhan S
KS
Department of Congenital Heart Disease, German Heart Institute, Berlin, Berlin, Germany.
Sabi
Titus
T
Moysich
Axel
A
Ovroutski
Stanislav
S
Peters
Bjoern
B
Miera
Oliver
O
Kühne
Titus
T
Nagdyman
Nicole
N
Berger
Felix
F
Ewert
Peter
P
D000293:Adolescent; D001014:Aortic Aneurysm / Q000209:etiology; D001017:Aortic Coarctation / Q000000981:diagnostic imaging / Q000628:therapy*; D001027:Aortography; D002404:Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D002648:Child; D002675:Child, Preschool; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011474:Prosthesis Design; D012189:Retrospective Studies; D015607:Stents; D013997:Time Factors; D016896:Treatment Outcome; D055815:Young Adult