Gender-specific differences of cardiac remodeling in subjects with left ventricular dysfunction: a population-based...

Area of Science:

• Cardiology
• Cardiovascular Research
• Medical Science

Background:

• Female gender is linked to lower heart failure prevalence and better prognosis.
• Previous research indicates gender influences heart failure outcomes.
• This study investigates gender's role in left ventricular (LV) dysfunction, mass, and neurohormonal activation.

Purpose of the Study:

• To evaluate gender-specific implications on the association between impaired left ventricular (LV) function and mass.
• To assess gender differences in neurohumoral activation in relation to LV dysfunction.
• To understand gender-specific myocardial adaptations to hemodynamic overload.

Main Methods:

• Analysis of 1883 subjects (992 female, 891 male) from two MONICA surveys in Augsburg, Germany.
• Characterization of neurohormonal activation in a subset of participants.
• Assessment of left ventricular ejection fraction (EF) and left ventricular mass index (LVMI) using established methods.

Main Results:

• Women exhibited higher LV ejection fraction (EF) and lower LV mass index (LVMI) compared to men.
• Men with LV dysfunction showed significant increases in LVMI, plasma BNP, and ANP.
• Women with LV dysfunction had less pronounced increases in LVMI and natriuretic peptides, except in severe cases.

Conclusions:

• Men with moderate to severe LV dysfunction experience greater increases in LV mass and cardiac natriuretic peptides.
• Women show a lesser extent of increase in LV mass and natriuretic peptides, primarily with severe LV dysfunction.
• Data suggest gender-specific control of myocardial adaptations and faster LV hypertrophy induction in men during myocardial dysfunction.