Chronic Venous Insufficiency: Symptoms, Treatment and UK Management

Chronic Venous Insufficiency (CVI) is a long-term medical condition where the veins in the legs are unable to effectively pump blood back to the heart. In a healthy circulatory system, tiny valves within the veins prevent blood from flowing backwards. However, when these valves become weakened or damaged, blood can pool in the lower legs, a process known as venous stasis.

According to NHS data, venous disorders are common in the UK, particularly among older adults, pregnant women, and those whose professions involve long periods of standing. Over time, the increased pressure in the veins (venous hypertension) causes the characteristic symptoms of swelling, pain, and skin discolouration.

CVI often starts subtly, but the symptoms typically worsen as the day progresses, especially if you have been standing or sitting for long periods. Recognising the signs early can help you seek treatment before significant skin damage occurs.

Key symptoms include:

• Oedema: Swelling in the ankles and lower legs that often improves after a night's sleep.
• Heaviness: A persistent aching or "heavy" feeling in the legs, sometimes described as a dull throb.
• Varicose Veins: Twisted, enlarged, or bulging veins that are visible just under the skin.
• Skin Changes: The skin may become leathery, itchy, or reddish-brown (haemosiderin staining).
• Cramping: Night-time leg cramps or a restless feeling in the lower limbs.

Several factors contribute to the development of CVI. The most significant is a history of Deep Vein Thrombosis (DVT), as previous blood clots can permanently damage vein valves. This is often referred to as post-thrombotic syndrome.

Other risk factors include:

• Age: The risk increases as vein walls and valves naturally weaken over time.
• Obesity: Excess weight puts significant pressure on the veins in the lower body.
• Gender: Women are more likely to develop CVI, often due to hormonal changes during pregnancy and menopause.
• Lifestyle: Lack of exercise and prolonged standing or sitting (common in retail or office work) inhibit the 'calf muscle pump' that helps move blood upwards.
• Genetics: A family history of varicose veins or venous disease increases your likelihood.

Management of CVI in the UK follows NICE (National Institute for Health and Care Excellence) guidelines, focusing on reducing venous pressure and improving blood flow. The first line of treatment usually involves lifestyle modifications.

Lifestyle Adjustments

Patients are encouraged to elevate their legs above the level of the heart for 30 minutes several times a day. Regular walking is also vital, as it strengthens the calf muscles which act as a pump for the veins. Weight management and reducing salt intake can also help decrease fluid retention.

Compression Therapy

Graduated compression stockings are the cornerstone of CVI management. These stockings apply the most pressure at the ankle and gradually decrease upwards, aiding the valves in directing blood back to the heart. It is essential to be measured correctly by a healthcare professional to ensure the stockings are effective and safe.

Managing a chronic condition like CVI requires consistent monitoring. You may wish to speak to a GP online if you notice your symptoms are becoming harder to manage with lifestyle changes alone. An online doctor can review your symptoms, provide advice on compression levels, and discuss the suitability of pharmacological treatments or referrals for surgical assessment.

Accessing a UK online doctor is a convenient way to get a professional opinion without the wait times associated with traditional clinics. They can also assist with providing sick notes if your condition prevents you from performing work duties that involve prolonged standing.

If CVI is ignored, the persistent high pressure in the veins can lead to serious complications. The most concerning is a venous leg ulcer. These are chronic sores that form near the ankle and are notoriously difficult to heal, often requiring specialist wound care. Additionally, the skin can become prone to cellulitis, a bacterial infection of the deeper layers of the skin, or stasis dermatitis, a type of eczema caused by poor circulation.