Capillary-venous malformation and pregnancy: Rationale of ethanol sclerotherapy

Capillary-venous malformation (CVM) during pregnancy may cause severe pain but has received less attention than the frequent critical onset of arteriovenous malformation during pregnancy. We experienced two patients with CVM related to pregnancy. The first patient had aborted her first pregnancy due to severe pain and desired a subsequent pregnancy without complications. The second had wanted to become pregnant after ethanol sclerosing therapy for a huge neck CVM. They were both treated with percutaneous ethanol sclerosing therapy. They soon became pregnant and achieved full-term delivery without any relapse except for transient mild pains at the end of the first trimester. Ethanol sclerotherapy was useful in controlling the CVM related to the pregnancy.