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  • Title: Directional coronary atherectomy at the Toronto and Mount Sinai Hospitals: report of the initial 120 procedures.
    Author: Adelman AG, Cohen EA, Carere RG, Kimball BP.
    Journal: Can J Cardiol; 1992 Sep; 8(7):702-8. PubMed ID: 1422990.
    Abstract:
    OBJECTIVE: To assess the procedural success and complication rates of the first 120 directional coronary atherectomy cases performed at two Toronto hospitals. DESIGN AND SETTING: Case series in tertiary referral centres. PATIENTS: One hundred and thirteen patients in whom 120 atherectomy procedures were attempted between July 1990 and April 1992. INTERVENTION: Directional coronary atherectomy. MAIN RESULTS: Angiographic success was obtained in 115 of 120 procedures (96%) involving 117 of 123 lesions (95%). Procedural success (angiographic success without death, myocardial infarction or coronary bypass surgery) was obtained in 110 of 120 procedures (92%). Adjunctive balloon angioplasty was required in 20 procedures (17%). There was one death at 36 h in an elderly patient who underwent an emergency procedure while in cardiogenic shock. Periprocedural non-Q wave myocardial infarction occurred in five patients. There were no Q wave myocardial infarctions. Three patients required coronary bypass surgery prior to discharge and vascular complications occurred in five patients. CONCLUSIONS: Directional coronary atherectomy can be performed with procedural success and complication rates comparable to conventional balloon angioplasty. Randomized trials are underway to determine if atherectomy results in a lower restenosis rate.
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