ArticleHeart and vessels2023
Impact of "black rock" on clinical outcomes after endovascular therapy for de novo calcified femoropopliteal lesions.
Article in Heart and vessels, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 4 citations in OpenAlex.
- Proximal plaque cap morphology in femoropopliteal occlusion affects the primary patency of endovascular therapy: a CT angiography cohort study.La Radiologia medica · 2026Article
- Clinical outcomes and risk factors associated with drug-coated balloon treatment for femoropopliteal artery disease in patients on maintenance hemodialysis.Heart and vessels · 2024Article
- Kissing intravascular lithotripsy in iliac in-stent restenosis related to underexpanded stents.Journal of vascular surgery cases and innovative techniques · 2024Article
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10 authors at 1 institution in 1 country.
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Abstract
The relationship between severity of calcification and clinical outcomes after endovascular therapy (EVT) for femoropopliteal lesions is well known. We often encounter dense calcifications in our daily practice, which are darker than normal calcifications on angiography. Accordingly, we named it "black rock" (BR), and investigated its impact on clinical outcomes after EVT. We retrospectively analyzed 677 lesions in 495 patients who underwent EVT for de novo calcified femoropopliteal lesions at our hospital between April 2007 and June 2020. BR is defined as a calcification which is 1 cm or more in length, occupies more than half of the vessel diameter, and appears darker than the body of the femur on angiography. Propensity score matching analysis was performed to compare clinical outcomes between lesions with BR [BR (+) group] and without BR [BR (-) group]. A total of 119 matched pairs of lesions were analyzed. Primary patency at 2 years was significantly lower in the BR (+) group than in the BR (-) group (48% vs. 75%, p = .0007). Multivariate analysis revealed that the presence of BR [hazard ratio (HR) = 2.23, 95% confidence interval (CI); 1.48-3.38, p = .0001], lesion length (HR = 1.03, 95%CI; 1.00-1.06, p = .0244), and no scaffold use (HR = 1.58, 95%CI; 1.06-2.36, p = .0246) were predictors of restenosis. The presence of BR is independently associated with clinical outcomes after EVT for de novo calcified femoropopliteal lesions.
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