Acute coronary syndromes presenting with ST elevation are usually treated with emergency reperfusion/revascularisation therapy. In contrast current evidence and national guidelines recommend risk stratification for no...Acute coronary syndromes presenting with ST elevation are usually treated with emergency reperfusion/revascularisation therapy. In contrast current evidence and national guidelines recommend risk stratification for non ST segment elevation myocardial infarction(NSTEMI) with the decision on revascularisation dependent on perceived clinical risk. Risk stratification for STEMI has no recommendation. Statistical risk scoring techniques in NSTEMI have been demonstrated to improve outcomes however their uptake has been poor perhaps due to questions over their discrimination and concern for application to individuals who may not have been adequately represented in clinical trials. STEMI is perceived to carry sufficient risk to warrant emergency coronary intervention [by primary percutaneous coronary intervention(PPCI)] even if this results in a delay to reperfusion with immediate thrombolysis. Immediate thrombolysis may be as effective in patients presenting early, or at low risk, but physicians are poor at assessing clinical and procedural risks and currently are not required to consider this. Inadequate data on risk stratification in STEMI inhibits the option of immediate fibrinolysis, which may be cost-effective. Currently the mode of reperfusion for STEMI defaults to emergency angiography and percutaneous coronary intervention ignoring alternative strategies. This review article examines the current risk scores and evidence base for risk stratification for STEMI patients. The requirements for an ideal STEMI risk score are discussed.展开更多
This study was carried out to analyze risk factors and short-term clinical outcomes in different age groups of Indian patients with ST-elevation myocardial infarction who underwent percutaneous coronary intervention. ...This study was carried out to analyze risk factors and short-term clinical outcomes in different age groups of Indian patients with ST-elevation myocardial infarction who underwent percutaneous coronary intervention. This prospective, non-randomized, and observational study was carried out at a tertiary care hospital. The patients who were treated with primary percutaneous coronary intervention for ST-elevation myocardial infarction at study center from December 2011 to September 2012 were included in the study. Study population is divided into three groups: Group-I consisted of patients with age ≤ 40 years, Group-II consisted of patients with age between 41 - 60 years and Group-III consisted of patients with age > 60 years. The primary end-point of the study was occurrence of major adverse clinical outcomes which were a composite of death, reinfarct, repeat percutaneous coronary intervention, major bleeding and emergency coronary artery bypass grafting at 30-day follow-up. A total of 200 patients with ST-elevation myocardial infarction who underwent percutaneous coronary intervention were included in the study. Among study population, 10 (5%) patients constituted Group-I, 96 (48%) patients constituted Group-II and 94 (47%) patients constituted Group-III. Diabetes (0% vs. 35.4% vs. 43.6%) and hypertension (10% vs. 35.4% vs. 44.7%) were more prevalent in Group-III as compared to Group-II and Group-I. The prevalence of single vessel disease was significantly higher in the Group-I compared to Group-II and Group-III (80% vs. 41.66% vs. 17%). At 30-day clinical follow-up, the rate of occurrence of major adverse clinical outcomes in Group-I, Group-II and Group-III is 0%, 2% and 5.4%, respectively. The young ST-elevation myocardial infarction patients had lower incidences of diabetes and hypertension compared with elderly patients. The young age group had more favorable in-hospital and 30-day clinical outcomes.展开更多
文摘Acute coronary syndromes presenting with ST elevation are usually treated with emergency reperfusion/revascularisation therapy. In contrast current evidence and national guidelines recommend risk stratification for non ST segment elevation myocardial infarction(NSTEMI) with the decision on revascularisation dependent on perceived clinical risk. Risk stratification for STEMI has no recommendation. Statistical risk scoring techniques in NSTEMI have been demonstrated to improve outcomes however their uptake has been poor perhaps due to questions over their discrimination and concern for application to individuals who may not have been adequately represented in clinical trials. STEMI is perceived to carry sufficient risk to warrant emergency coronary intervention [by primary percutaneous coronary intervention(PPCI)] even if this results in a delay to reperfusion with immediate thrombolysis. Immediate thrombolysis may be as effective in patients presenting early, or at low risk, but physicians are poor at assessing clinical and procedural risks and currently are not required to consider this. Inadequate data on risk stratification in STEMI inhibits the option of immediate fibrinolysis, which may be cost-effective. Currently the mode of reperfusion for STEMI defaults to emergency angiography and percutaneous coronary intervention ignoring alternative strategies. This review article examines the current risk scores and evidence base for risk stratification for STEMI patients. The requirements for an ideal STEMI risk score are discussed.
文摘This study was carried out to analyze risk factors and short-term clinical outcomes in different age groups of Indian patients with ST-elevation myocardial infarction who underwent percutaneous coronary intervention. This prospective, non-randomized, and observational study was carried out at a tertiary care hospital. The patients who were treated with primary percutaneous coronary intervention for ST-elevation myocardial infarction at study center from December 2011 to September 2012 were included in the study. Study population is divided into three groups: Group-I consisted of patients with age ≤ 40 years, Group-II consisted of patients with age between 41 - 60 years and Group-III consisted of patients with age > 60 years. The primary end-point of the study was occurrence of major adverse clinical outcomes which were a composite of death, reinfarct, repeat percutaneous coronary intervention, major bleeding and emergency coronary artery bypass grafting at 30-day follow-up. A total of 200 patients with ST-elevation myocardial infarction who underwent percutaneous coronary intervention were included in the study. Among study population, 10 (5%) patients constituted Group-I, 96 (48%) patients constituted Group-II and 94 (47%) patients constituted Group-III. Diabetes (0% vs. 35.4% vs. 43.6%) and hypertension (10% vs. 35.4% vs. 44.7%) were more prevalent in Group-III as compared to Group-II and Group-I. The prevalence of single vessel disease was significantly higher in the Group-I compared to Group-II and Group-III (80% vs. 41.66% vs. 17%). At 30-day clinical follow-up, the rate of occurrence of major adverse clinical outcomes in Group-I, Group-II and Group-III is 0%, 2% and 5.4%, respectively. The young ST-elevation myocardial infarction patients had lower incidences of diabetes and hypertension compared with elderly patients. The young age group had more favorable in-hospital and 30-day clinical outcomes.