MUSCLE BRIDGE AND MYOCARDIAL-ISCHEMIA - STUDY OF 6 CASES

The authors analyse the clinical and therapeutic aspects of myocardial bridges in a series of 6 male patients between the ages of 41 and 61 years. In every cases, the presenting signs were ischaemic order: one myocardial infarction, three cases of unstable angina and two case of stable angina. On coronary angiography, these muscle bridges involved the left anterior descending artery in all cases. The causal relations hips between muscle bridges and myocardial ischaemia are discussed. Am ong the various factors incriminated, spasm, tachycardia and thrombosi s appear to play an important role. Depending on the case, treatment m odalities consist of beta-blockers, platelet antiaggregants and calciu m channel blockers. Surgical treatment is reserved for patients who re main symptomatic despite medical treatment.