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J Am Coll Cardiol, 1988; 11:714-718
© 1988 by the American College of Cardiology Foundation
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Repeat coronary angioplasty: correlates of a second restenosis

AJ Black, HV Anderson, GS Roubin, SW Powelson, JS Douglas Jr, and SB King 3rd

Andreas Gruentzig Cardiovascular Center, Emory University Hospital, Atlanta, Georgia 30032.

To identify the correlates of a second restenosis after repeat percutaneous coronary angioplasty, the records of 384 patients with single vessel disease who underwent repeat angioplasty for restenosis complicating a first elective angioplasty were examined. A second restenosis occurred in 47 (31%) of 151 patients having angiographic follow-up. Univariate correlates of a second restenosis were an interval between the first and second angioplasty less than 5 months (41 versus 20% of patients had restenosis, p less than 0.01), male gender (35 versus 12%, p less than 0.05), lesions length greater than or equal to 15 mm before the second angioplasty (62 versus 28%, p less than 0.05), diameter stenosis greater than 90% before the second angioplasty (67 versus 29%, p less than 0.05), final gradient greater than 20 mm Hg after the second angioplasty (52 versus 28%, p less than 0.05) and an additional site requiring dilation at the time of the second angioplasty (50 versus 29%, p = 0.10). Multivariate predictors of a second restenosis were an interval of less than 5 months between the first and the second angioplasty (p = 0.001), male gender (p = 0.001), lesion length greater than or equal to 15 mm before the second angioplasty (p = 0.001) and the need to have an additional site dilated at the time of the second angioplasty (p = 0.002). Patients at increased risk of restenosis after the second angioplasty can be identified and may serve as a useful population for intervention studies.


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