Related Experiment Videos
[Acute myocardial infarction in patients under 45 years]
Pedro J Morillas1, Adolfo Cabadés, Vicente Bertomeu
1Sección de Cardiología. Hospital Universitario de San Juan. Alicante. España. pedromorillas@teleline.es
Insights
Younger patients experiencing acute myocardial infarction (AMI) present distinct risk factors like smoking and hypercholesterolemia, receive earlier treatment, and have a better prognosis compared to older individuals. This highlights differences in AMI presentation and outcomes across age groups.
Area of Science:
- Cardiology
- Internal Medicine
- Public Health
Background:
- Acute myocardial infarction (AMI) typically affects older populations.
- Understanding age-related differences in AMI is crucial for tailored treatment strategies.
Purpose of the Study:
- To compare the clinical features, treatment approaches, and outcomes of AMI in patients under 45 years old versus those over 45.
- To identify differential risk factors and prognostic indicators in younger AMI patients.
Main Methods:
- Retrospective analysis of 10,213 hospitalized AMI patients from the PRIMVAC Register (1995-1999).
- Comparison of demographic data, risk factors, time to treatment, therapeutic interventions, and complications between younger (<45 years) and older (≥45 years) patient groups.
Main Results:
- Younger patients (6.8%) exhibited higher rates of smoking and hypercholesterolemia, while older patients had more hypertension, diabetes, and prior coronary disease.
- Younger individuals presented earlier for care (120 vs. 160 min) and received more thrombolysis and aspirin.
- Despite different treatment profiles, younger patients demonstrated a significantly lower mortality rate (3.5% vs. 14%).
Conclusions:
- Acute myocardial infarction presents with distinct clinical characteristics in patients under 45 compared to older adults.
- Therapeutic and diagnostic strategies may need age-specific considerations for optimal AMI management.
- Younger patients generally experience a better short-term prognosis following acute myocardial infarction.
Introduction And Objective:
To evaluate the differential features of acute myocardial infarction in patients younger than 45 years old compared to older patients.
Patients And Methods:
From 1995 to 1999, delays in the assistance, evaluation, and therapeutic strategies as well as complications in patients hospitalized with a diagnosis of acute myocardial infarction, have been registered in the intensive care units of the 17 hospitals participating in the PRIMVAC Register.
Results:
During the study, 10,213 patients were registered, 6.8% younger than 45 years old (691 patients). Young patients show a greater prevalence of cigarette smoking (80.9 vs 34.1%; p < 0.0001) and hypercholesterolemia (39.9 vs 28.6%; p < 0.0001), whereas arterial hypertension, diabetes, and history of coronary disease were significantly more frequent in the older group. This subgroup reached the healthcare system at an earlier stage (120 vs 160 min; p < 0.0001). Thrombolysis was performed in 59.9% of patients younger than 45 years and in 45.9% of patients older than 45 years. Young patients were more frequently given aspirin (94.5%), heparin (70.6%), and beta-blocker drugs (38.4%), whereas patients older than 45 years were given a higher percentage of ACEI, digoxin, and inotropic drugs. Younger patients had a better prognosis and a lower mortality rate (3.5 vs 14%; p < 0.00001).
Conclusions:
Acute myocardial infarction in patients younger than 45 years had different clinical features and responded to different therapeutic and diagnostic approaches than acute myocardial infarction in patients over 45 years, as well as a better short-term prognosis.