**Question:** Infants of diabetic pregnancies may have hyperopic cardiomyopathy that occasionally progresses to congestive heart failure. Cardiomyopathy generally disappears by

**Core Concept:**
Diabetes mellitus during pregnancy can lead to fetal complications, one of which is hyperopic cardiomyopathy. This condition occurs due to the maternal diabetes affecting fetal myocyte development and causing structural abnormalities in the heart, leading to impaired cardiac function. Infants with this condition may develop congestive heart failure, which requires prompt management.

**Correct Answer: D.**

**Why the Correct Answer is Right:**
Hyperopic cardiomyopathy in infants of diabetic pregnancies generally disappears over time, as the heart undergoes remodeling and improves its function. This process typically occurs within the first few months after birth.

**Why Each Wrong Option is Incorrect:**

**A.** Infants with hyperopic cardiomyopathy may experience improvement, but the correct answer is D since the duration of improvement is not specified, and it may not always be immediate or guaranteed.

**B.** The statement "Cardiomyopathy generally disappears by the first year of life" is incorrect because the process of improvement is not specific to a particular time frame.

**C.** This option is incorrect as it mentions "congestive heart failure" resolving, which contradicts the core concept of the question, focusing on cardiomyopathy improvement rather than heart failure resolution.

**Clinical Pearl:**

Infants born to mothers with diabetes should be closely monitored for signs of congestive heart failure and managed accordingly. While the cardiomyopathy generally improves over time, the exact duration may vary, emphasizing the importance of ongoing assessment and management.