Which conditions are associated with cardiogenic pleural effusion?

Which conditions are associated with cardiogenic pleural effusion?

• A. Moderate to Severe CHF, Constrictive Pericarditis, Pulmonary Venous Obstruction
• B. Pneumonia, Tuberculosis, Pulmonary Embolism
• C. Cirrhosis, Nephrotic Syndrome, Hypoalbuminemia
• D. Malignancy-related Lymphatic Obstruction

Answer: (A)

Cardiogenic pleural effusions occur when elevated pressures in the heart and pulmonary circulation push fluid into the pleural space. Conditions that raise hydrostatic pressure or impair cardiac filling—such as moderate to severe congestive heart failure, constrictive pericarditis, and pulmonary venous obstruction—drive transudative fluid into the pleural space. These mechanisms create fluid accumulation that is characteristically related to cardiac dysfunction. In contrast, effusions from pneumonia, tuberculosis, or pulmonary embolism are usually inflammatory or septic (exudative) in nature, stemming from increased capillary permeability or local inflammation. Cirrhosis or nephrotic syndrome cause transudates from low oncotic pressure but are not driven by cardiac failure. Malignancy-related lymphatic obstruction leads to malignant or chylous effusions rather than cardiogenic ones.

Cardiogenic pleural effusions occur when elevated pressures in the heart and pulmonary circulation push fluid into the pleural space. Conditions that raise hydrostatic pressure or impair cardiac filling—such as moderate to severe congestive heart failure, constrictive pericarditis, and pulmonary venous obstruction—drive transudative fluid into the pleural space. These mechanisms create fluid accumulation that is characteristically related to cardiac dysfunction.

In contrast, effusions from pneumonia, tuberculosis, or pulmonary embolism are usually inflammatory or septic (exudative) in nature, stemming from increased capillary permeability or local inflammation. Cirrhosis or nephrotic syndrome cause transudates from low oncotic pressure but are not driven by cardiac failure. Malignancy-related lymphatic obstruction leads to malignant or chylous effusions rather than cardiogenic ones.