Left Main Coronary Artery Disease, Stenosis
Conditions
Keywords
Left main coronary artery, Coronary artery disease, Stress echography, Intrastent stenosis
Brief summary
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.
Detailed description
All patients of the study will pass coronary angiogram and stress echocardiography (treadmill of dobutamine).
Interventions
Patients able to exercise will have a treadmill test + echography; the others will have a dobutamine echography.
Sponsors
Université de Sherbrooke
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* patients over 18 years old able to give consent and having had left main angioplasty.
Exclusion criteria
* Bypass on the left anterior descending coronary artery or left circumflex ( protected left main ) * Treating physician judge that angiography need to be done straightaway * Follow up elsewhere than the CHUS * Patient refusal * Pregnant women * Stress echo contraindication(Severe high blood pressure or malignant arrhythmia)or condition that limits interpretation (Left bundle branch block or pacemaker rhythm)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Correlation between stress echocardiography results for the detection of left main prosthesis stenosis with coronary angiogram results. | 9 to 12 months after left main angioplasty |
Countries
Canada
Outcome results
None listed