Objective: To evaluate the long-term outcomes after drug-coated balloon (DCB) angioplasty dissection in patients with complex femoropopliteal artery disease.
Methods: Two hundred patients with femoropopliteal peripheral artery disease were enrolled in the AcoArt I trial and randomly assigned to either the DCB or percutaneous transluminal angioplasty (PTA) group. A total of 86 patients with post-balloon angioplasty dissection were reanalyzed. The primary endpoint was clinically driven target lesion revascularization (CD-TLR) over five years. Kaplan–Meier curve estimates were used to evaluate the association between the treatment and CD-TLR. Interaction and stratified analyses were also performed.
Results: Over five years, patients treated with DCB angioplasty demonstrated an acceptable effect with a numerically higher but not statistically significant rate of freedom from CD-TLR compared with those treated by PTA (Kaplan–Meier estimate of 77.6% vs 64.4%; log-rank P = 0.08). Among the patients who underwent TLR, the mean time from intervention to TLR in the DCB group was significantly prolonged compared to the PTA group (P < 0.001). The stratified analysis showed that the Rutherford classification played an interactive role in the association between the DCB angioplasty and low CD-TLR rate at five years. No significant difference in the all-cause mortality was found in the patients with post-balloon angioplasty dissection between the two treatment groups.
Conclusion: The five-year follow-up outcomes of the post-balloon angioplasty dissection in the AcoArt I trial demonstrated that DCB angioplasty is more trustworthy than PTA, with a higher rate of freedom than CD-TLR and sustained improvement in clinical symptoms. However, the all-cause mortality rate in patients with femoropopliteal lesions is similar after both DCB angioplasty and PTA.
Clinical Trial Registration: http://www.clinicaltrials.gov.
Unique Identifier: NCT01850056.
Keywords: balloon angioplasty, dissection, femoropopliteal artery disease, long-term outcomes, drug-coated balloon, percutaneous transluminal angioplasty