In 82 patients with unstable ischemic heart disease (IHD) before and after revascularisation (percutaneous transluminal coronary angioplasty-PTCA-in 11 patients and coronary artery bypass graft-CABG-in 71 patients) silent ischemia incidence was observed. In these patients before and after operation election fraction (EF) and wall motion score index (IK) were compared echocardiographically as well as physical ability according to Bruce protocol in treadmill exercise test. Data (EF and IK and exercise test) before and after operation didn't change significantly. Silent ischemia was directed before operation in 17 patients (21.8%) and in 15 patients (19.4%) one month after those procedures.
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