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This content has been automatically translated from Ukrainian.
Swelling of the lower limbs occurs when excess fluid accumulates in the interstitial space. In cardiology, this symptom is primarily associated with increased venous pressure and sodium retention in the body. Swelling itself is not a diagnosis — it merely signals a disruption in fluid volume regulation.
If swelling is accompanied by additional symptoms, it is necessary to consult a cardiologist to rule out causes related to the cardiovascular system. You can make an appointment with a specialist on the page https://veselka.clinic/napriamky/dorosli-vuzki-spetsialisty/kardioloh.
How Swelling Occurs with Heart Function Impairment
Against the background of heart failure, the heart loses its pumping strength, and output decreases. In response, compensatory mechanisms are activated. The process develops sequentially.
- Venous pressure increases in the systemic circulation, complicating the return of blood to the heart.
- The renin-angiotensin-aldosterone system is activated, leading to sodium and water retention.
- Excess fluid moves from the vessels into the interstitial space, forming peripheral swelling.
Thus, the symptom arises as a result of neurohumoral activation.
How Heart-Related Swelling Looks
Heart failure is characterized by a specific clinical picture. Swelling:
- is symmetrical;
- is localized in the shins and feet;
- worsens in the evening;
- partially decreases after a night’s rest;
- leaves a dent when pressed.
In later stages, fluid retention may spread higher — to the thighs, anterior abdominal wall, forming ascites. In such cases, it indicates significant decompensation.
Accompanying Symptoms that Alter Assessment
An isolated swelling of the legs is less likely to have a cardiac origin. It is much more important to assess it in the context of other manifestations:
- shortness of breath with physical exertion;
- orthopnea (worsening shortness of breath when lying down);
- poor response to physical activity;
- nocturnal cough, awakening from the sensation of lack of air.
The combination of these signs allows for a high probability of suspecting heart failure.
Diagnostic examination includes several complementary stages.
- Clinical examination with assessment of the jugular veins, auscultation of the heart and lungs.
- Electrocardiography to detect accompanying rhythm disturbances or signs of chamber overload.
- Echo-cardiography to determine ejection fraction, myocardial structure, and valve function.
- Determination of natriuretic peptides in complex or doubtful cases.
It is important not only to confirm the presence of heart failure but also to establish its type — with reduced or preserved ejection fraction — as this affects the choice of therapy.
Only a combination of data allows for the precise identification of the cause. Timely assessment can reduce symptoms and influence prognosis, as the control of heart failure is directly related to the quality and duration of life.
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