Medication in relation to ST-segment elevation myocardial infarction in patients with a first myocardial infarction: Swedish Register of Information and Knowledge About Swedish Heart Intensive Care Admissions (RIKS-HIA)

• BACKGROUND: The extent and the severity of acute myocardial infarction (MI) is decreasing. Out-of-hospital medical management before the hospital admission could alter clinical presentation in acute MI. We used a large national patient register to investigate the relation between previous medication use (aspirin, beta-blockers, angiotensin-converting enzyme [ACE] inhibitors, and statins) and the risk of presenting with ST-segment elevation MI (STEMI) or non-STEMI. METHODS: We included 103 459 consecutive patients from the Swedish Register of Information and Knowledge About Swedish Heart Intensive Care Admissions (RIKS-HIA) admitted between January 1, 1996, and December 31, 2006, with a first acute MI. RESULTS: The patients with STEMI (43.5% of the total) were younger, had less prior cardiovascular disease, and used fewer medications before hospitalization. Of the STEMI patients, 61.4% had used no medication vs 45.9% of the patients with non-STEMI. After multiple adjustments, use of aspirin, beta-blockers, ACE inhibitors, and statins before hospitalization were all associated with substantially lower odds of presenting with STEMI. Furthermore, the risk decreased with the number of previous medications, and the use of 3 or more medications was associated with a multiply adjusted odds ratio of presenting with STEMI of 0.48 (99% confidence interval, 0.44-0.52) compared with no medications at admission. CONCLUSIONS: Use of aspirin, beta-blockers, ACE inhibitors, or statins before hospital admission in patients with a first acute MI is associated with substantially less risk of presenting with STEMI. The risk decreases with the increasing number of these medications used before acute MI, underlining the benefit of preventive medication in high-risk patients.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kardiologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)

Nyckelord

Adrenergic beta-Antagonists/therapeutic use

Adult

Aged

Aged

80 and over

Angiotensin-Converting Enzyme Inhibitors/therapeutic use

Aspirin/therapeutic use

Cardiovascular Agents/*therapeutic use

Female

Heart Conduction System/drug effects/*physiopathology

Humans

Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use

Intensive Care Units/statistics & numerical data

Logistic Models

Male

Middle Aged

Multivariate Analysis

Myocardial Infarction/*drug

therapy/epidemiology/physiopathology/*prevention & control

Odds Ratio

Patient Admission/statistics & numerical data

Registries

Severity of Illness Index

Sweden/epidemiology

MEDICINE

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)