Leg Swelling May Signal Heart Failure, Not Just Kidney Issues, Doctors Warn

Leg swelling, shortness of breath, and fatigue are common symptoms that many attribute to aging or kidney issues. However, physicians are warning that these signs could signal a more serious underlying condition: heart failure.

Tri-Service General Hospital in Taiwan recently hosted the "2026 International Acute Mechanical Circulatory Support Summit and Workshop." The event brought together heart specialists from the United States, Japan, Singapore, and Australia to share knowledge and conduct hands-on training. The summit focused on new technologies for treating acute heart failure and mechanical circulatory support.

Dr. Ko Hung-yen, chief of cardiothoracic surgery at Tri-Service General Hospital, emphasized that heart failure is a significant and often overlooked health problem. He noted that its five-year survival rate can be worse than some cancers. "If you experience shortness of breath, leg swelling, or feel like you have the will but not the strength, seek medical attention immediately," Ko advised.

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If you experience shortness of breath, leg swelling, or feel like you have the will but not the strength, seek medical attention immediately.

As Taiwan enters an aging society, heart failure cases are rising, yet public awareness remains low. Many patients first consider kidney disease when they notice leg swelling, failing to recognize it as a potential sign of a deteriorating heart. When the heart cannot pump blood effectively, fluid can accumulate in the lower limbs, causing edema, along with breathlessness and reduced activity.

Ko stressed that heart failure is treatable if diagnosed early. Blocked coronary arteries can be addressed with stents or bypass surgery, and faulty valves can be repaired or replaced. However, delayed treatment for end-stage heart failure may necessitate life support devices like ECMO or ventricular assist systems. He added that advancements are moving towards total artificial hearts, offering more options for patients awaiting transplants or recovery.

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Heart failure is a significant and often overlooked health problem. Its five-year survival rate can be worse than some cancers.