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Unformatted text preview: CHSC 3P91 Diagnostics and Surgery Tests: o ECG o Exercise Stress Test o Echocardiogram o Angiogram Angioplasty (PTCA) “Percutaneous Transluminal Coronary Angioplasty” o Opens narrowed arteries o Restores normal blood flow o Pushes plaque back against artery wall o Creates small cracks or fissures within the brittle, fatty deposits (plaque fractures; provide more blood flow) o Stretches artery o Balloon tipped catheter o Once in place, inject dye and take x-ray to visualize blockage o Balloon inflated for seconds only o Compliant or non-compliant balloon o Leaves stent behind to reinforce arterial wall (also drug-eluding stents available) Risks with PTCA: o Abrupt vessel closure (incidence decreases with stents) o Stroke within 24 hours o Emergency bypass necessary (could lead to infarction) *Aspirin used to reduce complications* Atherectomy: o Used when plaque is stiff o Angio-jet sometimes used; sucking vacuum device. Dislodges plaque with high velocity stream of saline; good for bypass grafts. Coronary Artery Bypass (CABG)...
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This note was uploaded on 04/21/2008 for the course CHSC 3P91 taught by Professor O'leary during the Spring '08 term at Brock University.
- Spring '08