Antibody-coated stents carry increased threat of myocardial infarction and re-operation Threat of myocardial infarction and re-operation is greater than for drug-coated stents If narrowed or blocked coronary vessels need to be widened or opened, a vascular support is normally inserted. Drug-protected stents are favored for patients at risky of renewed narrowing of vessels . However, the usage of antibody-covered stents has been increasing in recent years tadalafil nz http://tadalafil-nz.net . Current studies provide indications that these new antibody-covered stents more lead to myocardial infarction and produce re-operation necessary frequently. This is the conclusion reached in the speedy survey of the German Institute for Quality and Performance in Health Care , october 2012 mainly because published on 12.