The impact of oral antiplatelet responsiveness on the long-term prognosis after coronary stenting.

Background: Decreased responsiveness to oral antiplatelet drug therapy has been associated with an adverse outcome after coronary stenting (CS), but more studies are needed. The purpose of the present study was to prospectively evaluate this issue.

Methods: A total of 612 consecutive patients with stable or unstable coronary artery disease who underwent CS after at least 12 hours of aspirin and clopidogrel loading were studied.

The impact of circulating total homocysteine levels on long-term cardiovascular mortality in patients with acute coronary syndromes.

Background: To evaluate the possible independent impact of circulating total homocysteine (tHcy) levels on long-term cardiovascular mortality, in patients with either ST-segment elevation myocardial infarction (STEMI), or non-ST-segment elevation acute coronary syndromes (NSTE-ACS).

Methods: A total of 458 STEMI and 476 NSTE-ACS patients who presented consecutively, within the first 12 and 24 h of index pain respectively were studied. Each cohort was divided according to tertiles of circulating tHcy levels upon presentation.