**Question:** True statement regarding peripartum cardiomyopathy:

A. Peripartum cardiomyopathy is a rare condition affecting pregnant women
B. The condition is characterized by sudden onset of heart failure during pregnancy or postpartum period
C. Peripartum cardiomyopathy primarily affects women with pre-existing heart conditions
D. The disease is commonly diagnosed in women with a history of high blood pressure or diabetes

**Correct Answer:** B. Peripartum cardiomyopathy is a rare condition affecting pregnant women.

**Core Concept:** Peripartum cardiomyopathy (PPCM) is a severe and potentially life-threatening heart condition that occurs in pregnant or recently pregnant women, usually within the final month of pregnancy or within six months after childbirth. It is characterized by the sudden onset of heart failure, which can lead to an impaired ability of the heart to pump blood effectively.

**Why the Correct Answer is Right:** The correct answer emphasizes the fact that peripartum cardiomyopathy primarily affects pregnant or recently pregnant women, making statement B the true statement. This condition is not specific to women with pre-existing heart conditions (option C) or those with high blood pressure or diabetes (options A and D). Instead, PPCM often develops in women without a history of heart problems, hypertension, or diabetes, making options A, C, and D incorrect.

**Why Each Wrong Option is Incorrect:**

A. Peripartum cardiomyopathy is a rare condition affecting pregnant women with pre-existing heart conditions (incorrect because the condition affects women without pre-existing heart problems).
C. Peripartum cardiomyopathy primarily affects women with pre-existing heart conditions (incorrect because the condition typically occurs in women without heart problems).
D. Peripartum cardiomyopathy is commonly diagnosed in women with a history of high blood pressure or diabetes (incorrect because the condition affects women without high blood pressure or diabetes).

**Clinical Pearl:** Although the exact etiology of peripartum cardiomyopathy is not fully understood, it is believed to be caused by a combination of factors including hormonal changes, immune response, and increased strain on the heart due to pregnancy-related physiological changes. It is essential for healthcare providers to be aware of this condition to promptly diagnose and initiate appropriate management for the affected women and their infants.