Myocardial Infarction Signs and Symptoms: Females vs. Males

Area of Science:

• Cardiology and Cardiovascular Health
• Sex Differences in Medicine
• Medical Research Methodology

Background:

• Cardiovascular disease, particularly myocardial infarction (MI), is a leading cause of death in US females.
• Females often exhibit distinct MI symptoms and pathophysiology compared to males.
• The link between these sex-specific symptoms and pathophysiology remains understudied.

Purpose of the Study:

• To systematically review existing literature on sex differences in MI symptoms and pathophysiology.
• To explore potential correlations between these differences and their impact on MI presentation and outcomes.
• To identify promising areas for future research in sex-based MI detection and treatment.

Main Methods:

• A systematic literature search was conducted across multiple databases (PubMed, CINAHL, etc.).
• Seventy-four articles examining sex differences in myocardial infarction were included in the review.
• Data on symptoms, pathophysiology, demographics, and comorbidities were analyzed.

Main Results:

• Females presented with more atypical symptoms (nausea, shortness of breath) and prodromal symptoms (fatigue) than males.
• Females experienced longer delays in seeking care, were older, and had more comorbidities.
• Males had higher rates of silent MIs, less atherosclerotic burden, and different MI etiologies (e.g., not plaque rupture).

Conclusions:

• Significant sex differences exist in MI presentation, pathophysiology, and patient characteristics.
• Physiological differences, such as microvasculature resistance and antioxidative metabolite levels, may underlie symptom disparities.
• Further research into pain tolerance, atherosclerotic burden variations, and non-plaque rupture MIs is crucial for improving early detection and patient care in females.