Optimized strategy of rotational atherectomy of underexpanded coronary stents in patients with acute coronary syndrome

Kun Cui, You-quan Shi, Yuan-zheng Zhang, Zheng-gong Li, Chang-ling Li

Table 2 Procedural characteristics

Parameters Results DES-ISR/BMS-ISR, n (%) 10 (90.1) /1 (9.1) Calcification, n (%) 9 (81.8) Coronary artery treated, n (%) LM 0 (0) LAD 7 (63.6) LCX 1 (9.1) RCA 3 (27.3) Pre-SA stent MLD/stent ratio 0.64 (0.60-0.66) Pre-SA stent MLA, mm2 2.58 (2.03-4.26) Burr/stent ratio First burr/stent ratio 0.93 (0.88-0.99) Second burr/stent ratio 1.09 (1.02-1.14) Two burrs used, n (%) 9 (81.8) Three burrs used, n (%) 2 (18.2) Post-SA stent length, mm 29 (18-38) Stent length implanted, mm 29 (23-36) Stent implantation (post-SA), n (%) 9 (81.8) BMS/DES (stent type), n (%) 0/9 (81.8) Drug-eluting balloon post SA, n (%) 2 (18.2) Scoring/cutting balloon, n (%) 8 (72.7)/3 (27.3) Maximum balloon diameter (post SA), mm 3.0 (2.5-3.5) Final stent diameter, mm 3.0 (2.5-3.5)