How effective is antenatal care for deep vein thrombosis in pregnancy?

Deep vein thrombosis is a clot in a deep vein, often in the leg. Pregnancy care can review personal risk factors, ask about new symptoms and arrange examination or imaging when a clot is suspected. It can also coordinate medicines and follow-up with maternity, medical or haematology teams.

A package of routine visits is not a substitute for investigating a concerning symptom. Leg swelling can occur in pregnancy for other reasons, but one-sided swelling, warmth, tenderness or pain needs attention. The purpose of prompt assessment is to confirm or exclude a clot and reduce the chance of it moving to the lungs.

Contact your maternity unit or urgent medical service immediately if you develop symptoms that could indicate DVT. Do not massage a painful swollen leg or wait for the next routine appointment. Tell the clinician how quickly the symptoms began, which leg is affected and whether you have had recent travel, immobility, surgery or a previous clot.

If treatment is prescribed, take it exactly as directed and attend monitoring appointments. Tell every clinician and your birth team about the medicine. They can plan medication timing around labour, procedures and the period after birth.

Call emergency services for sudden breathlessness, chest pain, coughing blood, fainting, severe dizziness or a racing heartbeat, especially alongside leg symptoms. These can indicate that a clot has travelled to the lungs and require immediate care.

Ask: Do my symptoms need same-day testing? Which scan or examination will be used? If a clot is confirmed, what treatment is appropriate in pregnancy? How will treatment affect labour or an epidural? What should I do if symptoms worsen?