Patients with a single = 50% e <75% coronary stenosis (visually extimated) at angiography, in one ore more coronary vessels).
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients of any race, male or female gender, with a single = 50% e =65 years) yes F.1.3.1 Number of subjects for this age range 50
Exclusion criteria
Exclusion criteria: Known intolerance of adenosine and/or dypiridamol and/or teophylline or of the eccipients. Patients who have taken caffein or food or beverages containig caffein and/or similar substances 24 hours before the procedure. Left main or aorto-ostial lesions. Lesions in severely tortuous or calcific vessels. Severely impaired left ventricular function (EFI°. Stenosis >70% of supra-aortic vessels. Concomitant treatment with teophylline-derivatives. Concomitant therapy with phosphodiesterase inhibitors derivatives. Hypotension (PASys <100 mmHg). Atrial fibrillation. Pregnant or lactating women. Pazients with a lesion in a culprit coronary vessel in patients with prior or recent myocardial infarction. Pazients with ST-elevation myocardial infarction =5 days (lesion in non-culprit vessel).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: The main objective of the study is to assess the feasibility of dipyridamole as hyperaemia inducing agent in the Fractional Flow Reserve (FFR) assessment.;Secondary Objective: To evaluate the tolerability of dypiridamole as hyperaemia inducing agent in the measurement of FFR.;Primary end point(s): To show non inferior diagnostic accuracy of a FFR assessment with dipyridamole, infused in a peripheral vein, as pharmacological agent inducing maximal hyperaemia , compared to a continuous adenosine infusion in a central vein, considered as the “gold standard”. The diagnostic accuracy will be measured with ROC curves analysis.;Timepoint(s) of evaluation of this end point: 12 months | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): To evaluate a better tolerability and a reduction of side effects with dipyridamole, compared to adenosine infusion, with a tolerability test for each drug.;Timepoint(s) of evaluation of this end point: 12 months | — |
Countries
Italy
Contacts
FONDAZIONE TOSCANA GABRIELE MONASTERIO