LAUSR

488 (Supplementary material, Figure S2A), caused by neointima growth, as revealed by OFDI (Sup‐ plementary material, Figure S2B–S2E). Angiog‐ raphy performed at 38 months showed an excel‐ lent long‐term outcome, whereas OFDI presented homogeneous hyperplasia of the neointima cov‐ ering the neocarina. The quantitative measure‐ ments confirmed an enlargement of the SB osti‐ um area due to partial scaffold biosorption (Sup‐ plementary material, Figure S3A–S3E). The final assessment at 54 months revealed complete bio‐ resorption of BVS struts, with further enlarge‐ ment of the SB ostium area and perfect restora‐ tion of the whole bifurcation area (FIGURE 1D–1F; Sup‐ plementary material, Figure S4A–S4E). Presented OFDI images provide a unique oppor‐ tunity to study the long‐term vascular response to bifurcation lesion treatment with the implan‐ tation of 2 scaffolds. Absorb scaffolds are no lon‐ ger commercially available but cardiologists still deal with hundreds of thousands of patients who had been treated with the first‐generation biore‐ sorbable technology. Based on a few years of ex‐ perience, it is currently not recommended to treat true bifurcation lesions with the 2‐scaffold tech‐ nique. We recommend that additional imaging ex‐ amination (preferably OFDI) should be performed to confirm the bioresorption process, and based on the results, dual antiplatelet therapy should be continued or restarted until a full coverage of struts is achieved. Due to the increased risk of late and very late thrombosis in patients with low risk of bleeding, we propose to continue dual antiplatelet therapy until complete resorption. Data concerning the long‐term efficacy and safe‐ ty of bioresorbable vascular scaffolds (BVSs) for coronary bifurcation lesions are still limited. The side branch (SB) compromise or even occlu‐ sion may occur during a bioresorption process, es‐ pecially in patients treated with 2‐scaffold tech‐ niques. Serial optical frequency domain imaging (OFDI) provides a unique illustration of the vas‐ cular healing response after complex bifurca‐ tion treatment with 2 everolimus‐eluting BVSs. A 60‐year‐old woman with stable angina un‐ derwent coronary angiography that revealed a significant lesion, Medina 0,1,1, at the bifurca‐ tion of the left anterior descending coronary ar‐ tery and the first diagonal branch coronary ar‐ tery. Following predilation, a 3.0 × 18–mm BVS (Absorb, Abbott Vascular, Santa Clara, Califor‐ nia, United States) was implanted in the left an‐ terior descending coronary artery. The implan‐ tation of BVS was followed by postdilution and subsequent opening of struts to the SB with a 2.5‐mm balloon inflation. A 2.5 × 18–mm BVS was implanted in the first diagonal branch using the T‐stenting with small protrusion technique (TAP) followed by “mini kissing” and proximal optimization within the main branch scaffold. A postprocedural angiography showed an ex‐ cellent result, and OFDI revealed a 1.9 mm– length neocarina, consisting of 2 layers of BVS struts with perfect apposition and no evidence of scaffold disruption (FIGURE 1A–1C; Supplemen‐ tary material, Figure S1A–S1E). Control an‐ giography at 18 months demonstrated non‐ significant, asymptomatic SB ostial stenosis Correspondence to: Magdalena Lanocha, MD, PhD, Department of Cardiology, Poznań University of Medical Sciences, ul. Długa 1/2, 61-848 Poznań, Poland, phone: +48 61 854 91 46, email: [email protected] Received: January 17, 2019. Revision accepted: February 21, 2019. Published online: April 25, 2019. Kardiol Pol. 2019; 77 (4): 488-489 doi:10.33963/KP.14803 Copyright by Polskie Towarzystwo Kardiologiczne, Warszawa 2019 C L I N I C A L V I G N E T T E