Renal function in heart failure

In heart failure, the heart struggles to pump blood effectively, which can reduce blood flow to the kidneys. Since kidneys rely on steady blood flow to filter waste and maintain fluid balance, this decreased flow can impair their function. As a result, the kidneys may retain excess salt and water, worsening swelling and increasing stress on the heart. Conversely, some treatments for heart failure can also affect kidney function. Overall, heart failure and kidney health are closely linked, and managing both is essential for improving patient outcomes.