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Controlled trial of high-versus low-dose aspirin treatment after percutaneous transluminal angioplasty in patients with peripheral vascular disease

  • Clinical Pharmacology
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Abstract

Percutaneous transluminal angioplasty of aortoiliac and femoropopliteal atherosclerotic lesions can provide long-lasting hemodynamic improvement. High-dose aspirin is commonly prescribed as reocclusion prophylaxis, but low doses would be preferable because of fewer adverse effects. We performed a double-blind, randomized, controlled clinical trial in patients with peripheral vascular disease with lesions appropriate for angioplasty. We compared the efficacy and side effects of two doses of aspirin (50 mg vs. 900 mg daily) during a period of 12 months after angioplasty. A total of 359 patients were evaluated: 175 were randomly assigned to treatment with 900 mg aspirin daily and 184 to 50 mg aspirin a day. Thirty-nine patients developed restenosis at the angioplasty site; the cumulative percentage of event-free survival after 1 year (patency rate) was 85% in the 900-mg group and 84% in the 50-mg group. An equivalence test showed the two groups equivalent with respect to restenosis rates (P = 0.003 for an equivalence region of < 10% difference). Nine patients (5%) in the 900-mg group had serious gastrointestinal side effects (peptic ulcer, eight; erosive gastritis requiring transfusion, one) compared to two (peptic ulcer) in the 50-mg group (P = 0.03). The results of our study show that a dose of 50 mg aspirin a day is as effective as one of 900 mg for the prevention of restenoses after lower limb angioplasty, and that severe gastrointestinal side effects are less frequent.

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Abbreviations

PTA:

percutaneous transluminal angioplasty

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Authors and Affiliations

  1. Abteilung Angiologie, Medizinische Hochschule Hannover, Konstanty-Gutschow-Strasse 8, D-30623, Hannover, Germany

    C. Rankel, A. Creutzig & K. Alexander

  2. Abteilung Diagnostische Radiologie, Medizinische Hochschule Hannover, Konstanty-Gutschow-Strasse 8, D-30623, Hannover, Germany

    H. -H. Wagner & M. Galanski

  3. Abteilung Klinische Pharmakologie, Medizinische Hochschule Hannover, Konstanty-Gutschow-Strasse 8, D-30623, Hannover, Germany

    S. Bode-Böger & J. Frölich

  4. Abteilung Hdmatologie and Onkologie, Medizinische Hochschule Hannover, Konstanty-Gutschow-Strasse 8, D-30623, Hannover, Germany

    H. -J. Avenarius

  5. Abteilung Biometrie, Medizinische Hochschule Hannover, Konstanty-Gutschow-Strasse 8, D-30623, Hannover, Germany

    H. Hecker

  6. Abteilung Radiologie, Zentralkrankenhaus Links der Weser, Bremen, Germany

    G. Luska

Authors
  1. C. Rankel
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  2. A. Creutzig
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  3. G. Luska
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  4. H. -H. Wagner
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  5. M. Galanski
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  6. S. Bode-Böger
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  7. J. Frölich
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  8. H. -J. Avenarius
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  9. H. Hecker
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  10. K. Alexander
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Additional information

This work was supported by grants from the Bundesministerium für Forschung and Technologie, Germany

Correspondence to: C. Ranke

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Rankel, C., Creutzig, A., Luska, G. et al. Controlled trial of high-versus low-dose aspirin treatment after percutaneous transluminal angioplasty in patients with peripheral vascular disease. Clin Investig 72, 673–680 (1994). https://doi.org/10.1007/BF00212985

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  • DOI: https://doi.org/10.1007/BF00212985

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