Medical News Today -- A team of cardiologists from the Montreal Heart Institute (MHI) have recently started enrolling patients for the Neovasc ReducerTM, designed to treat patients with refractory angina. This innovative treatment method, the first to be carried out in North America and part of an international study (COSIRA trial), shows promise for scores of Canadian patients disabled by refractory angina and who do not have alternatives for alleviating their signs and symptoms symptoms and improving their quality of life.