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Intravascular Lithotripsy vs Atherectomy in the Treatment of Calcified Common Femoral Artery Disease
Muhammad Baig1,2, Michael Kwok3, Ammer Aldairi4
1Division of Cardiology, Department of Medicine, Alpert Medical School of Brown University, Providence, Rhode Island.
Insights
Intravascular lithotripsy with drug-coated balloons (IVL-DCB) showed comparable midterm effectiveness to atherectomy with drug-coated balloons (Ath-DCB) for common femoral artery disease. Both treatments demonstrated high safety and efficacy in this patient cohort.
Area of Science:
- Vascular Surgery
- Interventional Cardiology
- Endovascular Therapy
Background:
- Common femoral artery (CFA) disease often presents with heavy calcification, leading to suboptimal outcomes with endovascular treatments compared to surgical options.
- While intravascular lithotripsy (IVL) shows promise short-term, its midterm effectiveness for CFA disease remains under-investigated.
- This study compares IVL-DCB to atherectomy-DCB (Ath-DCB) for treating calcified CFA disease.
Purpose of the Study:
- To compare the midterm effectiveness of IVL-DCB versus Ath-DCB in patients with symptomatic CFA disease.
- To evaluate clinically driven target lesion revascularization (CD-TLR) rates as the primary endpoint.
- To assess the safety and efficacy of these endovascular approaches.
Main Methods:
- A single-center retrospective cohort study included 68 patients with symptomatic CFA disease treated between January 2015 and March 2020.
- Patients received either IVL-DCB or Ath-DCB.
- The primary outcome was cumulative CD-TLR, defined as restenosis ≥50%, analyzed using Kaplan-Meier and log-rank tests over 18 months.
Main Results:
- Technical success was 100% in both groups, with minimal procedural complications requiring stenting.
- Mean age was 72 years, predominantly male (63.3%) and White (92%).
- Eighteen-month freedom from CD-TLR was 91.2% for Ath-DCB versus 79.4% for IVL-DCB (Log-rank P = .167), indicating comparable outcomes.
Conclusions:
- IVL-DCB demonstrated comparable safety and effectiveness to Ath-DCB for treating calcified CFA disease over an 18-month follow-up period.
- Both endovascular strategies appear to be viable options for managing complex CFA lesions.
- Further prospective studies are warranted to confirm these midterm findings.
Background:
Common femoral artery (CFA) disease is often heavily calcified and prone to low patency rates with endovascular treatment compared with surgical endarterectomy. Recent data suggest promising short-term outcomes with the adjunct use of intravascular lithotripsy; however, data on its midterm effectiveness are lacking. We compared clinically driven target lesion revascularization (CD-TLR) between patients receiving drug-coated balloon angioplasty with adjunct intravascular lithotripsy (IVL-DCB) vs adjunct atherectomy (Ath-DCB) for treatment of CFA disease.
Methods:
In a single-center retrospective cohort study, patients receiving IVL-DCB vs Ath-DCB for symptomatic CFA disease from January 2015 to March 2020 were included. The primary outcome was cumulative CD-TLR with angiographic restenosis ≥50%, estimated by Kaplan-Meier analysis during 18-month follow-up and compared by log-rank test.
Results:
Total of 68 CFA lesions (Ath-DCB, 35; IVL-DCB, 33) were included. Patients had a mean age (standard deviation) of 72 (8) years and were predominantly male (63.3%) and White (92%). Mean baseline angiographic stenosis was 78% (11) in the Ath-DCB group and 70% (10) in the IVL-DCB group (P = .002). Technical success was 100% in both groups. One flow-limiting dissection occurred in IVL-DCB requiring stent placement, whereas 2 bailout stentings were performed in the Ath-DCB group. Cumulative Kaplan-Meier freedom from CD-TLR was 91.2% (95% CI, 81.6%-100%) in the Ath-DCB group vs 79.4% (95% CI, 64.6%-94.2%) in the IVL-DCB group (Log-rank P = .167).
Conclusions:
The safety and effectiveness of IVL-DCB were comparable to those of Ath-DCB in the treatment of calcified CFA disease during the 18-month follow-up. Further studies are required to verify these findings.
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