**Question:** Not seen in constrictive pericarditis is -

A. Pulmonary hypertension
B. Pleural effusion
C. Elevated jugular venous pressure
D. Cardiac failure

**Core Concept:** Constrictive pericarditis is a condition characterized by scarring of the pericardium, causing it to constrict and limit the movement of the heart. This leads to impaired diastole and elevated filling pressures, resulting in symptoms like dyspnea, fatigue, and edema.

**Why the Correct Answer is Right:** A. Pulmonary hypertension is commonly seen in constrictive pericarditis due to the increased resistance caused by the scarred pericardium. This results in right heart strain and failure.

B. Pleural effusion is less commonly seen in constrictive pericarditis compared to restrictive cardiomyopathy. In constrictive pericarditis, the pleural space remains relatively normal due to the limited movement of the heart.

C. Elevated jugular venous pressure (JVP) is not typically seen in constrictive pericarditis. While JVP elevation can occur in some cases, it is less specific than the clinical presentation and electrocardiographic changes typically seen in constrictive pericarditis.

D. Cardiac failure is more common in constrictive pericarditis due to the increased afterload and impaired filling caused by the scarred pericardium. This leads to symptoms like dyspnea, fatigue, and edema.

**Why Each Wrong Option is Incorrect:**

A. Pulmonary hypertension is more likely to occur in constrictive pericarditis due to the increased afterload caused by the scarred pericardium. This option is incorrect because constrictive pericarditis typically presents with pulmonary hypertension.

B. Pleural effusion is less common in constrictive pericarditis compared to restrictive cardiomyopathy. In constrictive pericarditis, the pleural space remains relatively normal due to the limited movement of the heart.

C. Elevated JVP is not typically seen in constrictive pericarditis because constrictive pericarditis is usually associated with a more diffuse cardiac filling pattern and less significant JVP elevation compared to constrictive pericarditis. The constrictive pericarditis typically presents with electrocardiographic changes and clinical features of heart failure.

D. Cardiac failure is more common in constrictive pericarditis due to the increased afterload caused by the scarred pericardium, leading to symptoms like dyspnea, fatigue, and edema. This option is incorrect because constrictive pericarditis typically presents with other features such as electrocardiographic changes and a diffuse cardiac filling pattern.

**Clinical Pearl:** Constrictive pericarditis is a condition characterized by inflammation of the pericardium, which leads to scarring and the formation of a fibrous barrier around the heart. This constricts the cardiac chambers, causing a diffuse cardiac filling pattern on echocardiography and electrocardiography. Cardiac failure, pulmonary hypertension, and pleural effusion are common features in const