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  • Title: Elective implantation of intracoronary stents without intravascular ultrasound guidance or subsequent warfarin.
    Author: Sankardas MA, McEniery PT, Aroney CN, Bett JH.
    Journal: Cathet Cardiovasc Diagn; 1996 Apr; 37(4):355-9. PubMed ID: 8721688.
    Abstract:
    Two hundred forty-three stents (203 Palmaz-Schatz, 40 Glanturco-Roubin) were electively Implanted in 188 lesions in 168 patients (mean age 58 +/- 10 years, 77% males) using angiographic but not ultrasound guidance. Patients were treated subsequently with aspirin and observed in hospital for up to 7 days. Those with acute myocardial infarction, radiolucent defects in coronary arteries suggestive of thrombus, and results that were not optimal after stent implantation were anticoagulated with warfarin and not Included in the study. Two had subacute stent thrombosis and two patients non-Q-wave myocardial infarction in-hospital. At follow-up (median 149 days) none had had subacute stent thrombosis, one suffered non-Q-wave myocardial infarction, none had died, and none had developed major complications at the vascular access site. Fourteen (8%) had undergone further revascularisation procedures. This initial experience suggests that aspirin is sufficient to prevent subacute stent thrombosis after elective high pressure assisted coronary stent implantation without intravascular ultrasound guidance if the angiographic appearance after stent deployment is optimal.
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