Impact of Postoperative Lumen Gain on the Reduction of Restenosis Risk After Endovascular Treatment Using Drug-coated Balloon for Femoropopliteal Lesions Assessed by Intravascular Ultrasound
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Aim: This study aimed to reveal whether a larger postprocedural minimum lumen area (MLA) would reduce restenosis risk after endovascular therapy (EVT) using drug-coated balloons (DCBs) in femoropopliteal (FP) lesions.
Methods: This retrospective, nonrandomized, single-arm, and multicenter registry analyzed patients with FP lesions undergoing intravascular ultrasound (IVUS)-guided EVT with DCB between 2017 and 2021. The primary outcome was restenosis 1 year after EVT. The association between IVUS-based MLA and restenosis risk was investigated using a generalized propensity score (GPS) method to address imbalance of baseline covariates. The dose-response function of IVUS-measured MLA for restenosis risk was developed using the GPS-adjusted Cox proportional hazards regression model.
Results: This study enrolled consecutive 489 patients with 595 lesions undergoing DCB treatment. The median MLA (interquartile range) was 13.20 (9.90-16.91) mm. Kaplan-Meier estimates showed that freedom from restenosis was 84.4% at 1 year. The GPS-adjusted dose-response function showed that MLA was inversely associated with restenosis risk. The upper limit of 95% confidence interval (CI) of the slope was lower than 0 between 10.6 and 17.0 mm of MLAs. The 1-year cumulative incidence of restenosis was estimated to be 9.8% (95% CI, 5.8%-13.7%) for the 3rd quartile of MLA (16.91 mm) versus 18.5% (12.3%-24.1%) for the 1st quartile (9.90 mm), with a hazard ratio of 0.51 (95% CI, 0.39-0.67; p<0.001).
Conclusions: The present GPS analysis suggested that larger IVUS-measured MLA might be associated with lower risk of 1-year restenosis after DCB treatment for FP lesions.
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Iwata Y, Takahara M, Tobita K, Hayakawa N, Mori S, Horie K Cardiovasc Interv Ther. 2024; 39(3):293-301.
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Takahara M, Soga Y, Fujihara M, Iida O, Kawasaki D Cardiovasc Diabetol. 2023; 22(1):273.
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Horie K, Takahara M, Nakama T, Tanaka A, Tobita K, Hayakawa N Heart Vessels. 2023; 38(9):1117-1129.
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