None listed
Conditions
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
Canadian Cardiologic Society (CCS) Angina Scale class III or IV. Attempted best medical therapy including long acting nitrates, beta-blockers, and calcium channel blockers. Doses of each medication should be increased until haemodynamic consequences (bradycardia or hypotension) or intolerable drug-related side effects. Clinical signs and symptoms of significant ischaemia with reversible myocardial ischaemia on perfusion imaging. Subject must be able to complete a minimum of 3 minutes but no more than 10 minutes of Modified Bruce protocol.
Exclusion criteria
Unprotected left main coronary artery disease >50%. Unstable angina pectoris (labile ECG changes) or a change in anti - anginal medication within the last three weeks. Myocardial infarction (Q wave or non-Q wave) and cerebrovascular events within the last three months. Left ventricular (LV) thrombus. Severe peripheral vascular disease precluding femoral artery access. Aortic stenosis that prohibited catheter access to the LV. De - compensated heart failure and/ or severe LV dysfunction (ejection fraction <30%). Hypertrophic or restrictive cardiomyopathy.