Laser atherectomy for treatment of femoropopliteal in-stent restenosis

Ehrin J. Armstrong, Thejasvi Thiruvoipati, Kundai Tanganyika, Gagan Singh, John R. Laird

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

Purpose: To investigate if laser atherectomy with adjunctive balloon angioplasty can improve endovascular treatment outcomes for femoropopliteal in-stent restenosis (ISR). Methods: A dual center study included 135 symptomatic patients (mean age 71 years; 76 men) who underwent endovascular treatment of femoropopliteal ISR between 2006 and 2013. Of these, 54 (40%) were treated with laser atherectomy and the remaining 81 patients with balloon angioplasty alone. Angiographic images were reviewed for lesion morphology and characteristics, TransAtlantic InterSociety Consensus (TASC) II classification, and distal runoff. Class I ISR was defined as focal lesions ≤50 mm, class II ISR as lesions >50 mm, and class III ISR as stent total occlusion. Recurrent ISR was determined by a peak systolic velocity ratio >2.4 by duplex ultrasound. Results: Patients treated with laser atherectomy had longer mean ISR lesion length (222 vs 114 mm, p<0.001) and more class III ISR (69% vs 20%, p=0.001). There was no association between laser atherectomy and rates of recurrent restenosis or occlusion for patients with class I/II ISR, but there was a significantly lower rate of target lesion revascularization at 2 years among patients treated with laser atherectomy (14% vs 44%, p=0.05). In comparison, patients with class III ISR treated with laser atherectomy had lower rates of recurrent restenosis at 1 year (54% vs 91%, p=0.05) and 2 years (69% vs 100%, p=0.05). Patients with class III ISR treated with laser atherectomy also had lower rates of recurrent in-stent occlusion at 2-year follow-up (33% vs 71%, p=0.04). Conclusion: When used to treat complex ISR, including instent occlusions, laser atherectomy with adjunctive balloon angioplasty may be associated with improved patency.

Original languageEnglish (US)
Pages (from-to)506-513
Number of pages8
JournalJournal of Endovascular Therapy
Volume22
Issue number4
DOIs
StatePublished - Aug 1 2015

Keywords

  • Balloon angioplasty
  • In-stent restenosis
  • Laser atherectomy
  • Patency
  • Peripheral artery disease
  • Reocclusion
  • Stent
  • Superficial femoral artery
  • Target lesion revascularization

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'Laser atherectomy for treatment of femoropopliteal in-stent restenosis'. Together they form a unique fingerprint.

  • Cite this