An interventional study of MBBG and MB CABG in Myocardial Bridge of Coronary Artery, Myocardial Bridge and Myocardial Bridging, sponsored by Xi'an International Medical Center Hospital. Recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-03-04.
Sponsored by Xi'an International Medical Center Hospital · Not applicable, Interventional, and Treatment
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.
2,270 studies on the registry are indexed under Myocardial Infarction; 371 are open to participants now.
This study's planned enrollment of 500 is above the median of 150 across 1,314 interventional studies indexed under Myocardial Infarction.
Browse Myocardial Infarction studies →Xi'an International Medical Center Hospital is the lead sponsor of 5 studies on the registry; 3 are open to participants now.
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Exclusion Criteria:
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.
Procedure: MBBG
The patients with deep(depth\>2mm) and long-segement(length\>25mm) of myocardialbridge will be allocated to receive myocardialbridge bypass graft surgery(MBBG)，when 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 atherosclertotic stenosis is detected at the proximal or entry of the myocardialbridge confirmed by coronory artery angiography.
Procedure: MB CABG
The patients with superficial type(depth\<2mm) and short-segement(length\<25mm) of myocardial bridge will be allocated to receive "unroof" surgery，when 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 end of the myocardialbridge confirmed by coronory artery angiography.
Procedure: MB unroof
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.
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.
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.
All-Cause Mortality
Time frame: Up to 240 months
Rate of counduit patency
Time frame: Up to 180 months
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Xi'an International Medical Center Hospital