Cardiac resynchronization therapy: gender related differences in left ventricular reverse remodeling.

Area of Science:

• Cardiology
• Medical Devices
• Heart Failure Research

Background:

• Heart failure (HF) exhibits known gender-related differences in epidemiology, treatment, and prognosis.
• Cardiac resynchronization therapy (CRT) is a key treatment for select HF patients.
• The influence of sex on CRT response requires further investigation.

Purpose of the Study:

• To examine the influence of sex on left ventricular (LV) remodeling in patients treated with CRT.
• To assess gender-specific differences in response to CRT in heart failure patients.

Main Methods:

• Analysis of 195 heart failure patients (19.7% women) who underwent CRT and completed 6- and 12-month evaluations.
• Echocardiographic assessment of LV volumes (EDVi, ESVi) and ejection fraction (EF).
• Multiple regression analysis to identify independent predictors of LV remodeling.

Main Results:

• Significant reduction in LV volumes observed in the overall population at 6 and 12 months post-CRT.
• Women demonstrated significantly greater reductions in LV volumes and higher LV ejection fraction at 12 months compared to men.
• Female gender was independently associated with greater reduction in LV end-systolic volume (ESVi), with a higher proportion of women classified as responders.

Conclusions:

• Cardiac resynchronization therapy (CRT) induces a gender-specific left ventricular remodeling response.
• Women exhibit a more favorable remodeling response to CRT compared to men.