Diabetes mellitus is associated with adverse structural and functional cardiac remodelling in chronic heart failure...

Area of Science:

• Cardiology
• Endocrinology
• Internal Medicine

Background:

• Diabetes mellitus is a known risk factor for cardiovascular disease.
• Patients with chronic heart failure (CHF) and diabetes face higher mortality and hospitalization rates.
• Understanding diabetes-specific mechanisms in CHF is crucial for developing targeted treatments.

Purpose of the Study:

• To investigate the impact of diabetes mellitus on cardiac structure, function, and clinical outcomes in patients with chronic heart failure.
• To compare symptomatic, biochemical, and echocardiographic parameters between CHF patients with and without diabetes.

Main Methods:

• Prospective observational cohort study of 628 CHF patients with left ventricular systolic dysfunction.
• Comparison of cardiac indices, symptoms, and biochemical markers at baseline and 1-year follow-up.
• Assessment of heart rate variability and turbulence in relation to diabetes status.

Main Results:

• Patients with diabetes mellitus had a 2.3-fold higher risk of all-cause mortality and hospitalization.
• Diabetic CHF patients presented with more severe symptoms, higher diuretic needs, and signs of pulmonary edema despite higher ejection fraction.
• Diabetes was associated with increased left ventricular wall thickness, pulmonary arterial pressure, reduced heart rate variability, and impaired renal function during follow-up.

Conclusions:

• Diabetes mellitus is strongly associated with adverse cardiac remodeling in chronic heart failure patients.
• Diabetic patients exhibit poorer cardiac structure and function, contributing to worse clinical outcomes.
• These findings underscore the need for diabetes-tailored therapeutic strategies in chronic heart failure management.