Patients with higher-atherothrombotic risk vs. lower-atherothrombotic risk undergoing coronary intervention with newer-generation drug-eluting stents: an analysis from the randomized BIOFLOW trials.

Hemetsberger, Rayyan; Mankerious, Nader; Toelg, Ralph; Abdelghani, Mohammad; Farhan, Serdar; Garcia-Garica, Hector M; Allali, Abdelhakim; Windecker, Stephan; Lefèvre, Thierry; Saito, Shigeru; Kandzari, David; Waksman, Ron; Richardt, Gert (2023). Patients with higher-atherothrombotic risk vs. lower-atherothrombotic risk undergoing coronary intervention with newer-generation drug-eluting stents: an analysis from the randomized BIOFLOW trials. Clinical research in cardiology, 112(9), pp. 1278-1287. Springer-Verlag 10.1007/s00392-023-02205-4

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BACKGROUND

Patients with atherothrombotic risk are at high hazard of ischemic events. Preventive medicine plays a major role in modifying their outcomes. Whether the choice of a BP-SES or DP-EES can contribute to the occurrence of events remains unclear. We sought to investigate the outcomes of patients with higher atherothrombotic risk (H-ATR) versus lower atherothrombotic risk (L-ATR) undergoing percutaneous coronary intervention (PCI) with either bioresorbable-polymer sirolimus-eluting stent (BP-SES) or durable-polymer everolimus-eluting stent (DP-EES).

METHODS

Patients (n = 2361) from BIOFLOW-II, -IV, and -V randomized trials were categorized into H-ATR vs. L-ATR. L-ATR patients had ≤ 1 and H-ATR ≥ 2 of the following criteria: presentation in ACS, diabetes mellitus, previous myocardial infarction, previous PCI/CABG, or previous stroke. Endpoints were target lesion failure (TLF: cardiac death, target-vessel myocardial infarction [TV-MI], target lesion revascularization [TLR]) and stent thrombosis (ST) at three years.

RESULTS

H-ATR patients (n = 1023) were more morbid than L-ATR patients (n = 1338). TLF rate was significantly higher in H-ATR patients as compared with L-ATR (11.6% vs. 7.0%; HR 1.67, 95% CI 1.27-2.20, p < 0.0001). With BP-SES TLF rates were numerically lower as compared with DP-EES in H-ATR (10.5% vs. 13.5%; HR 0.78, 95% CI 0.54-1.14, p = 0.20) and significantly lower in L-ATR (5.6% vs. 9.8%; HR 0.57, 95% CI 0.38-0.85, p = 0.006).

CONCLUSION

In the era of newer-generation DES, patients with H-ATR still are at hazard for ischemic events. Patients with BP-SES had lower TLF rates as compared with DP-EES, most consistent in L-ATR whereas in H-ATR patients most probably secondary preventive strategies are of higher value.

CLINICAL TRIAL REGISTRATION

Clinicaltrial.gov. NCT01356888, NCT01939249, NCT02389946. https://clinicaltrials.gov/show/NCT01356888 , https://clinicaltrials.gov/show/NCT01939249 , https://clinicaltrials.gov/show/NCT02389946 .

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