Which are comorbidities of diastolic dysfunction?

Which are comorbidities of diastolic dysfunction?

• A. HTN, T2DM/obesity, renal insufficiency, pulmonary/liver disease, sleep apnea
• B. MI, myocarditis, valvular disease, genetic mutation
• C. Hyperlipidemia, gout, eczema, nephrotic syndrome
• D. Coronary artery disease, arrhythmia, kidney stones, asthma

Answer: (A)

Diastolic dysfunction tends to be seen with conditions that make the heart stiff or that promote long-term left ventricular remodeling. Hypertension drives concentric LV hypertrophy and structural stiffening, so the heart has trouble relaxing and filling. Type 2 diabetes and obesity contribute to myocardial fibrosis and metabolic changes that worsen compliance. Kidney disease commonly brings volume overload and uremic or vascular changes that promote LV stiffness. Pulmonary and liver disease add systemic effects—hypoxia, fluid shifts, and chronic stress on the circulation—that worsen filling pressures. Sleep apnea amplifies hypertension and remodeling through intermittent hypoxia and sympathetic activation, further impairing diastolic filling. Taken together, these comorbidities form the classic constellation seen with diastolic dysfunction. The other groupings emphasize acute myocardial injury, certain etiologies of cardiomyopathy, or conditions not typically linked as a standard comorbidity cluster for diastolic dysfunction, so they’re less representative of the typical comorbidity pattern.

Diastolic dysfunction tends to be seen with conditions that make the heart stiff or that promote long-term left ventricular remodeling. Hypertension drives concentric LV hypertrophy and structural stiffening, so the heart has trouble relaxing and filling. Type 2 diabetes and obesity contribute to myocardial fibrosis and metabolic changes that worsen compliance. Kidney disease commonly brings volume overload and uremic or vascular changes that promote LV stiffness. Pulmonary and liver disease add systemic effects—hypoxia, fluid shifts, and chronic stress on the circulation—that worsen filling pressures. Sleep apnea amplifies hypertension and remodeling through intermittent hypoxia and sympathetic activation, further impairing diastolic filling. Taken together, these comorbidities form the classic constellation seen with diastolic dysfunction.

The other groupings emphasize acute myocardial injury, certain etiologies of cardiomyopathy, or conditions not typically linked as a standard comorbidity cluster for diastolic dysfunction, so they’re less representative of the typical comorbidity pattern.