myocardial ischaemia. Ischaemic heart diseases
Conditions
Interventions
Intervention 1: Group A: in whom the beta-blocker agent is discontinued for 72h before Myocardial perfusion (MPI) scan. Intervention 2: Group B: without discontinuation of beta-blockers prior to MPI.
Diagnosis
Group A: in whom the beta-blocker agent is discontinued for 72h before Myocardial perfusion (MPI) scan.
Group B: without discontinuation of beta-blockers prior to MPI.
Sponsors
Deputy of Research, Tehran University of Medical Sciences
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Inclusion criteria: patients with angiographically confirmed CAD (i.e. more than 50% diameter stenosis in at least one coronary artery or major branches), who are on long-term treatment (=3 months) with therapeutic dose of a beta blockerl. Exclusion criteria: patients with a past history of asthma, second degree type 2 or third degree atrio-ventricualr block, left ventricular ejection fraction less than 50%, previous angioplasty and/or coronary artery bypass graft.
Exclusion criteria
Exclusion criteria:
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Myocardial Perfusion. Timepoint: 3 days after intervention. Method of measurement: Myocardial Perfusion Imaging (MPI). | — |
Secondary
| Measure | Time frame |
|---|---|
| Summed Rest Score (SRS). Timepoint: After myocardial perfusion scan. Method of measurement: QPS sofware.;Summed Stress Score (SSS). Timepoint: After myocardial perfusion scan. Method of measurement: QPS sofware.;Summed Difference Score (SDS). Timepoint: After myocardial perfusion scan. Method of measurement: QPS sofware. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactDr Babak Fallahi
Research Institute for Nuclear Medicine, Tehran University of Medical Sciences
Outcome results
None listed