RT Journal Article
SR Electronic
T1 Mechanical performance and healing patterns of the novel sirolimus-eluting bioresorbable Fantom scaffold: 6-month and 9-month follow-up by optical coherence tomography in the FANTOM II study
JF Open Heart
JO Open Heart
FD British Cardiovascular Society
SP e000941
DO 10.1136/openhrt-2018-000941
VO 6
IS 1
A1 Jo Krogsgaard Simonsen
A1 Emil Nielsen Holck
A1 Didier Carrié
A1 Norbert Frey
A1 Matthias Lutz
A1 Joachim Weber-Albers
A1 Dariusz Dudek
A1 Bernard Chevalier
A1 Joost Daemen
A1 Jouke Dijkstra
A1 Camilla Fox Maule
A1 Omeed Neghabat
A1 Jens Flensted Lassen
A1 Jeffrey Anderson
A1 Evald Høj Christiansen
A1 Alexandre Abizaid
A1 Niels Ramsing Holm
YR 2019
UL http://openheart.bmj.com/content/6/1/e000941.abstract
AB Objectives We aimed to evaluate the mechanical properties and healing patterns 6 and 9 months after implantation of the sirolimus-eluting Fantom bioresorbable scaffold (BRS).Background The Fantom BRS (Reva Medical, San Diego, USA) has differentiating properties including radiopacity, strut thickness of 125 µm, high expansion capacity and has demonstrated favourable mid-term clinical and angiographic outcomes.Methods and results FANTOM II was a prospective, single arm study with implantation of the Fantom BRS in 240 patients with stable angina pectoris. Guidance by optical coherence tomography (OCT) was encouraged and was repeated at 6-month (cohort A) or 9-month follow-up (cohort B). Matched baseline and follow-up OCT recordings were available in 152 patients. In-scaffold mean lumen area in cohort A was 6.8±1.7 mm2 and 5.7±1.4 mm2 at baseline and follow-up (p<0.0001) and was 7.2±1.6 mm2 and 5.6±1.4 mm2 in cohort B (p<0.0001). Mean scaffold area remained stable from 7.1±1.5 mm2 at baseline to 7.2±1.4 mm2 at 6 months (p=0.12), and from 7.4±1.5 mm2 to 7.3±1.4 mm2 at 9 months. Strut malapposition was median 0.8 (IQR 0.0;3.5)% and 1.8 (IQR 0.3;6.0)% at baseline and was 0.0 (IQR 0.0;0.0)% in both groups at 6-month and 9-month follow-up. Strut tissue coverage was 98.1 (IQR 95.9;99.4)% at 6 months and 98.9 (IQR 98.3;100.0)% at 9 months.Conclusions The novel Fantom BRS had favourable healing patterns at 6-month and 9-month follow-up as malapposition was effectively resolved and strut coverage was almost complete. The scaffold remained stable through follow-up with no signs of systematic late recoil.