Association of changes in clinical characteristics and management with improvement in survival among patients with ST-elevation myocardial infarction.

CONTEXT: The contemporary decline in mortality reported in patients with ST-segment elevation myocardial infarction (STEMI) has been attributed mainly to improved use of reperfusion therapy. OBJECTIVE: To determine potential factors-beyond reperfusion therapy-associated with improved survival in patients with STEMI over a 15-year period. DESIGN, SETTING, AND PATIENTS: Four 1-month French nationwide registries, conducted 5 years apart (between 1995, 2000, 2005, 2010), including a total of 6707 STEMI patients admitted to intensive care or coronary care units. MAIN OUTCOME MEASURES: Changes over time in crude 30-day mortality, and mortality standardized to the 2010 population characteristics. RESULTS: Mean (SD) age decreased from 66.2 (14.0) to 63.3 (14.5) years, with a concomitant decline in history of cardiovascular events and comorbidities. The proportion of younger patients increased, particularly in women younger than 60 years (from 11.8% to 25.5%), in whom prevalence of current smoking (37.3% to 73.1%) and obesity (17.6% to 27.1%) increased. Time from symptom onset to hospital admission decreased, with a shorter time from onset to first call, and broader use of mobile intensive care units. Reperfusion therapy increased from 49.4% to 74.7%, driven by primary percutaneous coronary intervention (11.9% to 60.8%). Early use of recommended medications increased, particularly low-molecular-weight heparins and statins. Crude 30-day mortality decreased from 13.7% (95% CI, 12.0-15.4) to 4.4% (95% CI, 3.5-5.4), whereas standardized mortality decreased from 11.3% (95% CI, 9.5-13.2) to 4.4% (95% CI, 3.5-5.4). Multivariable analysis showed a consistent reduction in mortality from 1995 to 2010 after controlling for clinical characteristics in addition to the initial population risk score and use of reperfusion therapy, with odds mortality ratios of 0.39 (95%, 0.29-0.53, P <.001) in 2010 compared with 1995. CONCLUSION: In France, the overall rate of cardiovascular mortality among patients with STEMI decreased from 1995 to 2010, accompanied by an increase in the proportion of women younger than 60 years with STEMI, changes in other population characteristics, and greater use of reperfusion therapy and recommended medications.

Impact of prehospital thrombolysis for acute myocardial infarction on 1-year outcome: results from the French Nationwide USIC 2000 Registry.

BACKGROUND: Limited data are available on the impact of prehospital thrombolysis (PHT) in the "real-world" setting. METHODS AND RESULTS: Of 443 intensive care units in France, 369 (83%) prospectively collected all cases of infarction (< or =48 hours of symptom onset) in November 2000; 1922 patients (median age, 67 years; 73% men) with ST-segment-elevation infarction were included, of whom 180 (9%) received intravenous thrombolysis before hospital admission (PHT). Patients with PHT were younger than those with in-hospital thrombolysis, primary percutaneous interventions, or no reperfusion therapy. Median time from symptom onset to hospital admission was 3.6 hours for PHT, 3.5 hours for in-hospital lysis, 3.2 hours for primary percutaneous interventions, and 12 hours for no reperfusion therapy. In-hospital death was 3.3% for PHT, 8.0% for in-hospital lysis, 6.7% for primary percutaneous interventions, and 12.2% for no reperfusion therapy. One-year survival was 94%, 89%, 89%, and 79%, respectively. In a multivariate analysis of predictors of 1-year survival, PHT was associated with a 0.49 relative risk of death (95% CI, 0.24 to 1.00; P=0.05). When the analysis was limited to patients receiving reperfusion therapy, the relative risk of death for PHT was 0.52 (95% CI, 0.25 to 1.08; P=0.08). In patients with PHT admitted in < or =3.5 hours, in-hospital mortality was 0% and 1-year survival was 99%. CONCLUSIONS: The 1-year outcome of patients treated with PHT compares favorably with that of patients treated with other modes of reperfusion therapy; this favorable trend persists after multivariate adjustment. Patients with PHT admitted very early have a very high 1-year survival rate.

Impact of combined secondary prevention therapy after myocardial infarction: data from a nationwide French registry.

BACKGROUND: Several classes of medications improve survival in patients with coronary artery disease. Whether these medications, as used in the real world, have additive efficacy remains speculative. OBJECTIVES: To assess whether patients discharged on combined secondary prevention medications after acute myocardial infarction (AMI) have improved 1-year survival, compared with the action of any single class of medications. DESIGN AND SETTING: Nationwide registry of consecutive patients admitted to intensive care units for AMI in November 2000 in France. Multivariate Cox regression analysis, including a propensity score for the prescription of combined therapy, was used. RESULTS: Of the 2119 patients discharged alive, 1095 (52%) were prescribed a combination of antiplatelet agents, beta-blockers, and statins (triple therapy), of whom 567 (27%) also received angiotensin-converting enzyme inhibitors (quadruple therapy) and 528 (25%) did not. One-year survival was 97% in patients receiving triple combination therapy versus 88% in those who received either none, 1, or 2 of these medications (P < .0001). After multivariate adjustment including the propensity score, the hazard ratio for 1-year mortality in patients with triple combination therapy was 0.52 (95% CI 0.33-0.81). In patients with ejection fraction < or = 35%, beta-blockers and angiotensin-converting enzyme inhibitors were independent predictors of survival, and combination therapy had no additional prognostic value. CONCLUSIONS: Compared with the prescription of any single class of secondary prevention medications, combination therapy offers additional protection in patients with AMI.

[Combination therapy at hospital discharge in the USIC 2000 survey]. / Les associations thérapeutiques a la sortie de l'hôpital dans l'enquête USIC 2000 : corrélations avec la survie a un an.

UNLABELLED: We tried to determine the prognostic impact of triple (antiplatelet agents, statins and beta-blockers) and quadruple (the same+ACE inhibitors) combination therapy at hospital discharge after acute myocardial infarction. The USIC 2000 survey is nationwide registry of consecutive patients admitted to intensive care units for acute myocardial infarction in November 2000 in France. Of the 2119 patients discharged alive, 1095 (52%) were prescribed a combination of antiplatelet agents, beta-blockers and statins (triple therapy), including 567 (27%) with a similar combination plus ACE inhibitors (quadruple therapy). One-year survival was 97% in patients receiving triple combination therapy versus 88% in those who received either no, one or two of these medications (p < 0.0001). After multivariate adjustment, the odds ratio for one-year mortality in patients with triple combination therapy was 0.49 (95% confidence interval: 0.32-0.75). Quadruple combination therapy had no additional predictive value in the entire population. In patients with ejection fraction < or = 35%, however, beta-blockers and ACE inhibitors were independent predictors of survival, and combination therapy had no additional prognostic value. CONCLUSIONS: compared with the prescription of any single class of secondary prevention medications, combination therapy offers additional protection in patients with acute myocardial infarction.

Development of congestive heart failure in type 2 diabetic patients with microalbuminuria or proteinuria: observations from the DIABHYCAR (type 2 DIABetes, Hypertension, CArdiovascular Events and Ramipril) study.

OBJECTIVE: The DIABHYCAR (type 2 DIABetes, Hypertension, CArdiovascular Events and Ramipril) study allowed investigators to analyze factors leading to the development of congestive heart failure (CHF) in type 2 diabetic patients with abnormal urinary albumin concentration. RESEARCH DESIGN AND METHODS: Type 2 diabetic subjects of both sexes aged >or=50 years who had a urinary albumin concentration >or=20 mg/l were randomly allocated to 1.25 mg/day ramipril or placebo in addition to their usual treatment and treated for 3-6 years in a double-blind fashion. Major outcomes including hospitalization for CHF were recorded during the follow-up. RESULTS: Of the 4912 included patients, 187 developed CHF during the study. There was no significant difference in the incidence of CHF between the two treatment groups. Using a multivariate analysis, independent risk factors for the occurrence of CHF were age, history of cardiovascular disease, baseline urinary albumin concentration, baseline HbA(1c), and smoking habits. A total of 68 of the 187 patients (36.4%) died during the 12 +/- 11-month period after the first hospitalization for CHF, whereas the annual mortality rate of the population who did not develop CHF was 3.2%. CONCLUSIONS: Presence of atherosclerotic disease, baseline urinary albumin concentration, and HbA(1c) level were indicators for further development of CHF. Occurrence of CHF is a major prognostic turn in a diabetic patient's life.

Acute blood pressure response to trandolapril and captopril in patients with left ventricular dysfunction after acute myocardial infarction.

OBJECTIVE: Our purpose was to compare the blood pressure response to short-term treatment with captopril or trandolapril in patients with left ventricular (LV) dysfunction after acute myocardial infarction (AMI). METHODS: A multicenter, randomized, double-blind, double-dummy, parallel group study was performed. Treatment was initiated 3 to 10 days after the onset of symptoms. On day 1, patients received a single dose of captopril 6.25 mg, trandolapril 0.5 mg, or placebo in the morning. Treatment was then titrated upward over the next 5 days. Blood pressure was monitored with an automated device for the first 12 hours after dosing on day 1. Conventional blood pressure measurements were performed throughout the study. RESULTS: Of 205 patients treated in the study, 193 patients were evaluated for first-dose effects. In the captopril group, the maximum decrease in blood pressure occurred after 2 hours, and the magnitude of this decrease was significantly greater than in the other 2 groups: 8.8 +/- 12/6.3 +/- 8 mm Hg (captopril) versus 5.4 +/- 10/3.1 +/- 8 mm Hg (trandolapril) versus 2.4 +/- 9/1.4 +/- 7 mm Hg (placebo) (P <.01). In the trandolapril group, the maximum decrease occurred after 7 hours and the magnitude of this effect was similar in all 3 groups: 5.9 +/- 11/3.6 +/- 8 mm Hg (trandolapril) versus 4.3 +/- 10/3.5 +/- 8 mm Hg (captopril) versus 3.1 +/- 11/2.8 +/- 8 mm Hg (placebo) (not significant). Although there was a higher incidence of hypotension on day 1 in the captopril group, the overall incidence of hypotension during the study period was similar in both active treatment groups. CONCLUSION: Because of differences in initial blood pressure response profiles, short-term treatment with trandolapril tended to be better tolerated than captopril in post-AMI patients with LV dysfunction.

Hypertension in high-risk patients: beware of the underuse of effective combination therapy (results of the PRATIK study).

OBJECTIVE: To determine whether blood pressure control in a general practice setting is influenced by the presence of additional risk factors, and to analyse the role of antihypertensive therapy in this relationship. DESIGN: A cross-sectional study was conducted with a sample of 3153 general practitioners. SETTING: Primary care. PARTICIPANTS: The first five hypertensive patients presenting at the practitioner's office were included. MAIN OUTCOME MEASURES: Cardiovascular risk factors, antihypertensive drugs and cardiovascular history were reported. Blood pressure was measured. The analysis was conducted in treated patients who were divided in three groups: no other risk factors (group I); 1-2 risk factors (group II); 3 or more risk factors or target-organ damage or diabetes or associated cardiovascular disease (group III). RESULTS: Data were available for all variables in the 14 066 treated hypertensive individuals who form the basis of this report. Blood pressure control had been achieved in a lower percentage of individuals in group III (27%) than in group I (42.9%). To control hypertension, combination therapies were more frequently required in group III (55.8%) than in group II (43.5%) or group I (34.2%). Among individuals with uncontrolled hypertension, about 39% of patients in group III were receiving monotherapy and the percentage receiving two-drug treatments identified as effective in the 1999 WHO guidelines was significantly lower in group III. CONCLUSION: The study shows that, in general practice, control of blood pressure decreases as the number of risk factors present increases. An underuse of combination therapy, especially effective two-drug treatment in patients with several risk factors, may account for this finding.

Cardiovascular prognosis of "masked hypertension" detected by blood pressure self-measurement in elderly treated hypertensive patients.

CONTEXT: Blood pressure (BP) measurement in clinicians' offices with a mercury sphygmomanometer has numerous drawbacks. In contrast, the use of home BP measurement improves measurement precision and reproducibility. However, data about its prognostic value are lacking. OBJECTIVE: To assess the prognostic value of home vs office BP measurement by general practitioners in a European population of elderly patients being treated for hypertension. DESIGN, SETTING, AND PARTICIPANTS: Office and home BP and cardiac risk factors were measured at baseline in a cohort of 4939 treated hypertensive patients (mean age, 70 [SD, 6.5] years; 48.9% men) who were recruited and followed up by their usual general practitioners without specific recommendations about their management. The cohort was then followed up for a mean of 3.2 (SD, 0.5) years. The thresholds defining uncontrolled hypertension were at least 140/90 mm Hg for office BP and 135/85 mm Hg for home BP. MAIN OUTCOME MEASURES: The primary end point was cardiovascular mortality. Secondary end points were total mortality and the combination of cardiovascular mortality, nonfatal myocardial infarction, nonfatal stroke, transient ischemic attack, hospitalization for angina or heart failure, percutaneous transluminal coronary angioplasty, or coronary artery bypass graft surgery. RESULTS: At the end of follow-up, clinical status was known for 99.9% of patients. At least 1 cardiovascular event had occurred in 324 (incidence, 22.2/1000 patient-years). For BP self-measurement at home, each 10-mm Hg increase in systolic BP increased the risk of a cardiovascular event by 17.2% (95% confidence interval [CI], 11.0%-23.8%) and each 5-mm Hg increase in diastolic BP increased that risk by 11.7% (95% CI, 5.7%-18.1%). Conversely, for the same increase in BP observed using office measurement, there was no significant increase in the risk of a cardiovascular event. In a multivariable model with patients having controlled hypertension (normal home and office BP) as the referent, the hazard ratio of cardiovascular events was 1.96 (95% CI, 1.27-3.02) in patients with uncontrolled hypertension (high BP with both measurement methods), 2.06 (95% CI, 1.22-3.47) in patients with normal office BP and elevated home BP, and 1.18 (95% CI, 0.67-2.10) in patients with elevated office BP and normal home BP. CONCLUSIONS: Our findings suggest that home BP measurement has a better prognostic accuracy than office BP measurement. Blood pressure should systematically be measured at home in patients receiving treatment for hypertension.

Role of previous treatment with sulfonylureas in diabetic patients with acute myocardial infarction: results from a nationwide French registry.

BACKGROUND: The cardiovascular effects of sulfonylureas (SU) in diabetic patients are controversial and it has been suggested that diabetic patients with acute myocardial infarction while on SU were at increased risk. OBJECTIVES: To assess the in-hospital outcome of patients with acute myocardial infarction according to the use of SU at the time of the acute episode. METHODS: Of 443 intensive care units in France, 369 (83%) prospectively collected all cases of infarction admitted within 48 h of symptom onset in November 2000. RESULTS: Among the 2320 patients included in the registry, 487 (21%) had diabetes, of whom 215 (44%) were on SU. Patients on SU were older and had a more frequent history of hyperlipidemia than those not receiving SU. Type and location of infarction were similar in the two groups, and there was no difference in Killip class on admission. In-hospital mortality was lower in patients on SU (10.2%) than in those without SU (16.9%) (p = 0.035). There was a trend toward less frequent ventricular fibrillation (2.3% vs 5.9%, p = 0.052). In two models of multivariate analyses, SU therapy was associated with decreased in-hospital mortality (model 1: relative risk: 0.44, p = 0.012; model 2: relative risk: 0.37, p = 0.020). CONCLUSIONS: In this nationwide registry reflecting real-world practice, the use of sulfonylureas in diabetic patients was not associated with increased in-hospital mortality.