Hereditary Hemorrhagic Telangiectasia (HHT) may be associated with a number of problems during a pregnancy that can make the pregnancy high risk.

Problems that can occur during a pregnancy in a woman with HHT:

(1) iron deficiency anemia

(2) spinal arteriovenous malformations which may affect epidural anesthesia

(3) high output heart failure, which may be related to large hepatic arteriovenous malformations

(4) intracranial hemorrhage

(5) stroke

(6) air embolism to the brain or other organs (associated with a pulmonary AVM)

(7) pulmonary hemorrhage including hemothorax

(8) gastrointestinal hemorrhage

(9) possible increase in risk of miscarriage

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