Introduction
Drug-coated balloons (DCB) are increasingly used as a therapeutic strategy for coronary artery disease, especially in small vessel lesions or situations where stent implantation is not desirable. However, real-world comparative data between paclitaxel- and sirolimus-coated DCBs, especially in acute coronary syndrome (ACS) versus stable coronary syndrome (SCS), remain scarce.
Objective
To compare the angiographic performance of paclitaxel- and sirolimus-coated DCBs based on clinical presentation and procedural strategy.
Method
This was a single-center retrospective study including 15 patients treated with DCBs between 2022 and 2024 for coronary lesions in the context of ACS or SCS. Clinical, angiographic, and procedural data were collected. The primary endpoint was acute lumen gain (ALG), expressed as a percentage. Analyses were stratified by DCB type, clinical context, gender, use of 1:1 pre-dilatation, and number of balloons used.
Results
In this monocentric retrospective study including 15 patients treated with drug-coated balloons (DCB) for coronary lesions, the average age was 59.8 years and 73% were male. Paclitaxel-based DCBs were used in 60% of cases, and sirolimus-based DCBs in 40%. The mean acute lumen gain (ALG) was 114.4% ± 112.6, with a final minimal lumen diameter of 1.73 mm, a reference vessel diameter of 2.39 mm, and a residual stenosis of 57.7%. Sirolimus DCBs showed higher ALG in acute coronary syndrome (ACS) settings (129.3%) compared to chronic coronary syndrome (CCS, 49.0%), while paclitaxel DCBs were more effective in CCS (130.3%). ALG was higher in patients who did not undergo 1:1 pre-dilatation (125.9% vs. 82.7%). Most treated vessels were marginal branches, distal LAD, and diagonal branches. Using a single balloon was the most common strategy (60%) with a corresponding ALG of 92.6% (Fig. 1).
Conclusion
Both paclitaxel- and sirolimus-coated DCBs demonstrated significant efficacy with high acute lumen gain. Sirolimus DCBs appeared more effective in ACS, while paclitaxel DCBs showed more consistent results in SCS. These findings support the value of DCBs within a “leave nothing behind” strategy, consistent with current ESC guidelines and major trials such as PEPCAD II and BASKET-SMALL 2.
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