Stress Echocardiography Versus Coronary Angiography for Left Main Stenosis Detection (ESTRIE-TC)
Left main stenosis use to be treated by bypass but with the improvement of angioplasty techniques, an increasing number of patients are submit to left main coronary angioplasty. Consequences of left main intra stent stenosis can be disastrous yet, for the moment, no precise recommendation concerning the follow up of these patients exist. The investigators ought to determine if stress echocardiography can predict left main intra stent stenosis as well (non inferiorly)as control angiography that use to be done.
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||Évaluation de l'Echographie de Stress Par Comparaison à la Coronarographie Comme Outil Non Invasif de détection de la resténose Intra endoprothèse du Tronc Commun|
- Correlation between stress echocardiography results for the detection of left main prosthesis stenosis with coronary angiogram results. [ Time Frame: 9 to 12 months after left main angioplasty ] [ Designated as safety issue: No ]
|Study Start Date:||July 2010|
|Estimated Study Completion Date:||July 2013|
|Estimated Primary Completion Date:||July 2012 (Final data collection date for primary outcome measure)|
Nine to twelve months after their left main angioplasty, patients will go through a stress echo and then the usual control angiography (done routinely in most patient in our center). Patients will act as their own control.
Other: Stress echocardiography
Patients able to exercise will have a treadmill test + echography; the others will have a dobutamine echography.
All patients of the study will pass coronary angiogram and stress echocardiography (treadmill of dobutamine).
|Centre Hospitalier Universitaire de Sherbrooke, departement de cardiologie|
|Sherbrooke, Quebec, Canada, J1H 5N4|
|Principal Investigator:||Paul Farand, Cardiologue||Centre Hospitalier Universitaire de Sherbrooke|