Which symptom is most commonly associated with idiopathic cardiomyopathy of pregnancy?

The symptom most commonly associated with idiopathic cardiomyopathy of pregnancy is dyspnea. This condition can lead to heart dysfunction, resulting in various symptoms of heart failure. Dyspnea, or difficulty breathing, occurs due to fluid overload and respiratory compromise that can happen when the heart's ability to pump effectively is diminished.

Pregnancy itself leads to increased blood volume and changes in hemodynamics, placing additional stress on the heart. When idiopathic cardiomyopathy occurs during pregnancy, the heart may struggle to manage this increased demand, leading to symptoms like dyspnea, especially on exertion or when in a supine position.

While palpitations, orthopnea, and chest pain may also occur in the context of heart disorders, they are less specific to idiopathic cardiomyopathy in pregnant women compared to dyspnea. Dyspnea is a hallmark symptom in this scenario, representing a direct consequence of compromised cardiac function and fluid overload associated with this condition.