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Early and late quantitative angiographic results of vein graft lesions treated by excimer laser with adjunctive balloon angioplasty.

Publication ,  Journal Article
Strauss, BH; Natarajan, MK; Batchelor, WB; Yardley, DE; Bittl, JA; Sanborn, TA; Power, JA; Watson, LE; Moothart, R; Tcheng, JE
Published in: Circulation
August 1, 1995

BACKGROUND: Percutaneous excimer laser coronary angioplasty (PELCA) has been approved for treatment of diseased saphenous vein bypass grafts. However, detailed and complete quantitative angiographic analysis of immediate procedural and late follow-up results has not been performed. METHODS AND RESULTS: PELCA using the CVX-300 excimer laser system was performed in 125 bypass lesions (mean graft age, 96 +/- 53 months; range, 2 to 240 months) in 106 consecutive patients at eight centers. Quantitative analyses of the procedural and follow-up angiograms were done with the Cardiac Measurement System. Stand-alone PELCA was done in 21 lesions (17%). Lesions were located at the ostium (20%), body (67%), or distal anastomosis (13%). The graft reference diameter was 3.26 +/- 0.79 mm (mean +/- SD). Minimal lumen diameter increased from 1.09 +/- 0.52 mm before treatment to 1.61 +/- 0.69 mm after laser and 2.18 +/- 0.63 mm after adjunctive balloon dilation (P < .001) but had declined at follow-up to 1.40 +/- 1.17 mm. Dissections were evident in 45% of lesions after laser treatment (types A and B, 27%; types C through F, 18%), including 7% occlusions. Angiographic success (< or = 50% diameter stenosis [% DS]) was 54% after laser and 91% after adjunctive PTCA, with an overall clinical success rate of 89%. In-hospital complications were death, 0.9%; myocardial infarction (Q-wave and non-Q-wave), 4.5%; and bypass surgery, 0.9%. Independent predictors of % DS after laser were reference diameter, lesion length, and minimal lumen diameter before laser. At angiographic follow-up in 83% of eligible patients, the restenosis rate per lesion (DS > 50%) was 52%, including 23 occlusions (24%). The only independent predictor of increased % DS at follow-up was lesion symmetry. Logistic regression indicated that smaller reference diameter was an independent predictor of late occlusion. Overall 1-year mortality was 8.6%. Actuarial event-free survival (freedom from death, myocardial infarction, bypass surgery, or target vessel percutaneous transluminal coronary angioplasty) was 48.2% at 1 year. CONCLUSIONS: Excimer laser angioplasty with adjunctive balloon angioplasty can be safely and successfully performed in diseased, old saphenous vein bypass graft lesions considered at high risk for reintervention. The extent of laser ablation remains limited by the diameter and effectiveness of the catheters. Late restenosis and, in particular, total occlusion mitigate the early benefits of the procedure. Other approaches such as the routine use of additional anticoagulation (eg, warfarin) should be considered to reduce the risk of late occlusions and restenosis after laser angioplasty of bypass grafts.

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Published In

Circulation

DOI

ISSN

0009-7322

Publication Date

August 1, 1995

Volume

92

Issue

3

Start / End Page

348 / 356

Location

United States

Related Subject Headings

  • Time Factors
  • Recurrence
  • Prognosis
  • Male
  • Humans
  • Graft Occlusion, Vascular
  • Female
  • Coronary Artery Bypass
  • Cardiovascular System & Hematology
  • Angioplasty, Balloon, Laser-Assisted
 

Citation

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Chicago
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MLA
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Strauss, B. H., Natarajan, M. K., Batchelor, W. B., Yardley, D. E., Bittl, J. A., Sanborn, T. A., … Tcheng, J. E. (1995). Early and late quantitative angiographic results of vein graft lesions treated by excimer laser with adjunctive balloon angioplasty. Circulation, 92(3), 348–356. https://doi.org/10.1161/01.cir.92.3.348
Strauss, B. H., M. K. Natarajan, W. B. Batchelor, D. E. Yardley, J. A. Bittl, T. A. Sanborn, J. A. Power, L. E. Watson, R. Moothart, and J. E. Tcheng. “Early and late quantitative angiographic results of vein graft lesions treated by excimer laser with adjunctive balloon angioplasty.Circulation 92, no. 3 (August 1, 1995): 348–56. https://doi.org/10.1161/01.cir.92.3.348.
Strauss BH, Natarajan MK, Batchelor WB, Yardley DE, Bittl JA, Sanborn TA, et al. Early and late quantitative angiographic results of vein graft lesions treated by excimer laser with adjunctive balloon angioplasty. Circulation. 1995 Aug 1;92(3):348–56.
Strauss, B. H., et al. “Early and late quantitative angiographic results of vein graft lesions treated by excimer laser with adjunctive balloon angioplasty.Circulation, vol. 92, no. 3, Aug. 1995, pp. 348–56. Pubmed, doi:10.1161/01.cir.92.3.348.
Strauss BH, Natarajan MK, Batchelor WB, Yardley DE, Bittl JA, Sanborn TA, Power JA, Watson LE, Moothart R, Tcheng JE. Early and late quantitative angiographic results of vein graft lesions treated by excimer laser with adjunctive balloon angioplasty. Circulation. 1995 Aug 1;92(3):348–356.

Published In

Circulation

DOI

ISSN

0009-7322

Publication Date

August 1, 1995

Volume

92

Issue

3

Start / End Page

348 / 356

Location

United States

Related Subject Headings

  • Time Factors
  • Recurrence
  • Prognosis
  • Male
  • Humans
  • Graft Occlusion, Vascular
  • Female
  • Coronary Artery Bypass
  • Cardiovascular System & Hematology
  • Angioplasty, Balloon, Laser-Assisted