Chronic Venous Insufficiency (CVI)

Understanding Chronic Venous Insufficiency (CVI)

Chronic venous insufficiency (CVI) is a long-term condition where damaged or weakened vein valves can't return blood efficiently from the legs to the heart, causing blood to pool. Symptoms include swelling, aching, heaviness, skin changes, varicose veins, and in advanced cases venous ulcers.

Daily graduated compression is the cornerstone of CVI management — it counteracts the failed valves by mechanically driving venous return upward, reducing swelling and slowing the disease's progression toward skin damage and ulcers.

Compression Levels

Choose the level that matches your needs:

20–30 mmHg (Firm) — the most prescribed level: varicose veins, moderate swelling, recovery
30–40 mmHg (Extra Firm) — severe swelling, lymphedema, and CVI, under medical guidance
40–50 mmHg — severe lymphedema and advanced venous disease, under medical supervision

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Frequently Asked Questions

What compression level is best for chronic venous insufficiency?

Most people with CVI are prescribed 20–30 mmHg, with 30–40 mmHg for more advanced cases and 40–50 mmHg for severe disease — all under medical supervision. The exact level depends on your CVI severity (often graded by the CEAP classification) and is best determined by your vascular specialist.

Can compression stockings cure CVI?

No — CVI is a chronic, incurable condition because the damaged vein valves don't repair themselves. But daily graduated compression is the single most effective way to manage it: it controls swelling, relieves symptoms, and slows progression toward skin damage and venous ulcers. Think of it as ongoing management rather than a cure.

How long each day should I wear compression for CVI?

All day, every day, during waking hours. Put your stockings on in the morning before swelling builds and wear them until bed. CVI management depends on consistency — sporadic wear gives far less benefit than daily use. Your doctor may advise specific wear patterns based on your stage of disease.

What happens if CVI is left untreated?

Untreated CVI tends to progress — from swelling and aching to skin discoloration and hardening (lipodermatosclerosis), and in advanced stages to open venous leg ulcers near the ankle. Consistent compression therapy is proven to slow this progression, which is why doctors emphasize daily use.

Is CVI the same as varicose veins?

They're related but not identical. Varicose veins are visibly enlarged, twisted veins and can be an early sign of venous disease. CVI is the broader, more advanced condition where vein valves fail to return blood efficiently, causing chronic swelling, skin changes, and potentially ulcers. Many people with CVI also have varicose veins.