Bypass Graft Occlusion, Bypass Graft Stenosis, Bypass Graft Thrombosis, Myocardial Bridge, Myocardial Bridge of Coronary Artery, Myocardial Bridging, Myocardial Infarction, Myocardial Ischemia, Pectoris, Stable Angina, Sudden Cardiac Death
Conditions
Brief summary
Myocardial Bridge Bypass Graft surgery is introduced to relieve the unmedical symptoms of patients with long-segment or deep myocardial bridge, clinical outcomes will be collected to verify the effectiveness of the surgery.
Interventions
PROCEDUREMBBG
The patients with deep(depth\>2mm) and long-segement(length\>25mm) of myocardialbridge receiving myocardialbridge bypass graft surgery(MBBG)，fulfilling the following criteria: 1.presenting with pectoris angina that cannot be effectively relieved by maximum guideline-directed drug therapy; 2. No atherosclerotic plaque or merely mild atherosclerotic stenosis is detected at the proximal or entry of the myocardialbridge confirmed by coronory artery angiography.
PROCEDUREMB CABG
The patients with deep(depth\>2mm) and long-segement(length\>25mm) of myocardialbridge receiving myocardialbridge bypass graft surgery(MBBG)，fulfilling the following criteria: 1.presenting with pectoris angina that cannot be effectively relieved by maximum guideline-directed drug therapy; 2. The moderate-to-severe atherosclerotic stenosis is detected at the proximal or entry of the myocardialbridge confirmed by coronory artery angiography.
PROCEDUREMB unroof
The patients with superficial type(depth\<2mm) and short-segement(length\<25mm) of myocardial bridge will be allocated to receive myocardialbridge unroof surgery，when fulfilling the following criteria: 1.presenting with pectoris angina that cannot be effectively relieved by maximum guideline-directed drug therapy; 2. The MB was superficial and short confirmed by coronory artery CT angiography.
Sponsors
Xi'an International Medical Center Hospital
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Patients with myocardialbridge requiring drug therapy or surgical intervention.
Exclusion criteria
* patients with myocardialbridge not requiring drug therapy or surgical intervention, or unwilling to be enrolled for any reason
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| All-Cause Mortality | Up to 240 months |
| Rate of counduit patency | Up to 180 months |
Countries
China
Contacts
Primary ContactZhen Wang, Doctorate
Backup ContactJinzhou Zhang, Doctorate
Outcome results
None listed