Phlebitis – Vein Inflammation: Causes and Treatment
Phlebitis is an inflammation of the vein wall. It most commonly affects superficial veins, causing redness, swelling, and pain along the affected vessel.
Things worth knowing about "Phlebitis"
Phlebitis is an inflammation of the vein wall. It most commonly affects superficial veins, causing redness, swelling, and pain along the affected vessel.
What is Phlebitis?
Phlebitis is an inflammation of the wall of a vein. It can affect superficial veins (superficial phlebitis) or deep veins. The superficial form is more common and is generally less dangerous than deep vein inflammation. When phlebitis is accompanied by a blood clot, the condition is referred to as thrombophlebitis.
Causes
Phlebitis can be triggered by a variety of factors:
- Mechanical irritation: For example, from intravenous catheters, injections, or surgical procedures
- Varicose veins: Veins already weakened by varicosities are more susceptible to inflammation
- Infections: Bacterial pathogens can cause septic phlebitis
- Chemical irritation: Certain medications or infusion solutions can irritate the vein wall
- Clotting disorders: Conditions that affect blood coagulation increase the risk
- Prolonged immobility: Extended periods of sitting or lying down promote the development of phlebitis
Symptoms
The typical signs of phlebitis include:
- Redness along the affected vein
- Local warmth and swelling
- Pain or tenderness to the touch
- Hardening of the tissue above the vein (a palpable, cord-like thickening)
- Mild fever (in inflammatory or infectious forms)
Diagnosis
Diagnosis is usually made clinically through physical examination and patient history. The following tests may also be used:
- Ultrasound (duplex sonography): To assess the vein and rule out deep vein thrombosis
- Blood tests: Inflammatory markers such as CRP and white blood cell count, and D-dimer levels to exclude thrombosis
- Blood cultures: In suspected cases of septic phlebitis
Treatment
Treatment depends on the underlying cause and the severity of the phlebitis:
Conservative Measures
- Cooling and elevation of the affected area
- Compression bandages or compression stockings
- Anti-inflammatory medications (e.g., diclofenac gel or tablets)
- Topical heparin-containing gels or creams
Medication-Based Treatment
- Low-molecular-weight heparin or direct oral anticoagulants for extensive cases or high thrombosis risk
- Antibiotics in cases of bacterial (septic) phlebitis
Surgical Interventions
- Removal or sclerotherapy of affected varicose veins in recurrent phlebitis
Complications
In most cases, superficial phlebitis resolves without serious consequences. However, possible complications include:
- Spread to deep veins, with the risk of deep vein thrombosis (DVT)
- Pulmonary embolism if a blood clot detaches and travels to the lungs
- Chronic venous insufficiency
- Sepsis in untreated bacterial phlebitis
Prevention
The following measures can help prevent phlebitis:
- Regular physical activity and avoiding prolonged immobility
- Adequate fluid intake
- Wearing compression stockings in high-risk individuals
- Careful handling of intravenous catheters in clinical settings
- Treatment of varicose veins
References
- Moll, S. - Phlebitis. MedlinePlus, U.S. National Library of Medicine (2023). Available at: https://medlineplus.gov/ency/article/001108.htm
- Gloviczki, P. et al. - The care of patients with varicose veins and associated chronic venous diseases: Clinical practice guidelines of the Society for Vascular Surgery and the American Venous Forum. Journal of Vascular Surgery, 53(5 Suppl), 2S-48S (2011).
- Di Nisio, M., Wichers, I. M., Middeldorp, S. - Treatment for superficial thrombophlebitis of the leg. Cochrane Database of Systematic Reviews (2018). DOI: 10.1002/14651858.CD004982.pub6
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