Which medication class is primarily used to reduce preload in patients with DCM?

Diuretics are primarily used to reduce preload in patients with dilated cardiomyopathy (DCM) by promoting the excretion of sodium and water from the kidneys. This reduction in fluid volume decreases the amount of blood returning to the heart (preload), which can help alleviate symptoms of heart failure, such as edema and pulmonary congestion. By minimizing the workload on the heart, diuretics can improve functional capacity and quality of life for patients suffering from DCM.

In the context of DCM, managing fluid retention is crucial, as excessive preload can exacerbate heart failure symptoms and lead to further cardiac dysfunction. Using diuretics can help maintain a balance in fluid status and prevent complications related to volume overload. Therefore, they are a mainstay in the symptomatic treatment of patients with DCM, aiming to enhance patient comfort and functional outcomes.