Related Experiment Videos
Surgical treatment of myocardial bridging causing coronary artery obstruction
1Division of Cardiothoracic and Vascular Surgery, University Clinics of Mainz, Germany.
Insights
Surgical relief of myocardial bridging effectively restores coronary blood flow and myocardial perfusion in patients with obstructed arteries. This procedure offers excellent functional results with low operative risk.
Area of Science:
- Cardiology
- Cardiac Surgery
- Vascular Medicine
Background:
- Myocardial bridging can cause coronary artery obstruction and myocardial ischemia.
- Medical treatment failure necessitates alternative interventions for symptomatic patients.
Purpose of the Study:
- To evaluate the efficacy and safety of surgical myocardial bridge release.
- To assess the restoration of coronary blood flow and myocardial perfusion post-surgery.
Main Methods:
- Nine patients with myocardial bridging underwent surgical dissection of overlying myocardium.
- Diagnoses confirmed via angiography at rest or during beta-stimulation.
- Cardiopulmonary bypass was utilized during the procedures.
Main Results:
- All nine patients survived the operation with no major long-term complications.
- Postoperative studies confirmed restored coronary flow and myocardial perfusion.
- No residual myocardial bridges were observed under beta-stimulation.
Conclusions:
- Surgical relief of myocardial ischemia caused by myocardial bridging is effective.
- The procedure demonstrates low operative risk and excellent functional outcomes.
- This surgical approach successfully addresses systolic compression of intramyocardial coronary arteries.
Abstract:
Nine patients with obstruction of coronary artery blood flow caused by myocardial bridging underwent surgery after failure of medical treatment. The diagnoses were made angiographically at rest or during beta-stimulation. Impaired blood flow was found only in the left anterior descending artery in seven patients and additionally in the diagonal branch in two. The operations, performed with cardiopulmonary bypass consisted of complete dissection of the overlying myocardium. All patients survived the operation. Major intraoperative complications were accidental opening of the right ventricle in two patients. Postoperative scintigraphic and angiographic studies demonstrated restoration of coronary flow and myocardial perfusion without residual myocardial bridges under beta-stimulation. Surgical relief of myocardial ischemia due to systolic compression of intramyocardial coronary arteries can be accomplished with low operative risk and with excellent functional results.