Long-term effects of rotational atherectomy in patients with heavy calcified coronary artery lesions: a single-centre experience.

BACKGROUND: Rotational atherectomy (RA) plays a significant role in contemporary percutaneous coronary interventions (PCI), especially in the era of population aging and expansion of PCI indications.

AIM: The aim of the current study was to evaluate the rate of periprocedural complications, the long-term effectiveness of RA, and potential factors influencing the incidence of major adverse cardiac events (MACE) and major cardiac as well as cerebrovascular events (MACCE) after RA.

METHODS: The study included 60 consecutive patients who underwent effective RA between January 2002 and May 2016. Patients were followed-up for 2,616 days for MACE and MACCE.

RESULTS: The mean age of the enrolled patients was 72.1 years, and 78.3% were males. The mean follow-up period lasted 835.3 ± 611.8 days. Periprocedural complications occurred in 12 (20.0%) patients. In the follow-up of up to 2,616 days, 64% of patients were free of MACCE and 68% were free of MACE. Univariate Cox analysis revealed that MACCE occurred more often in patients from the high-risk group based on the EuroSCORE II and those with longer lengths of the implanted stent(s) after the RA procedure. In multivariate Cox regression analysis, both high-risk category and mean stent(s) length were identified as independent predictors of MACCE. EuroSCORE II was confirmed to be the only independent predictor of MACE after RA.

CONCLUSIONS: Rotational atherectomy is a safe and sufficient technique for the endovascular treatment of heavily calcified coronary artery lesions. Individuals at a higher risk as assessed by the EuroSCORE II before RA and those with longer stent(s) implanted after RA are predisposed to MACCE in the follow-up.