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Hyperhemolysis syndrome complicating pregnancy in homozygous δβ-thalassemia
Joseph Mechery1, Kehinde Abidogun, Fiona Crosfill
1Department of Obstetrics and Gynaecology, Royal Preston Hospital, Preston, Lancashire, UK. jmechery@nhs.net
Hyperhemolysis syndrome in patients with sickle cell disease who are given compatible blood has been well described in the literature but a similar condition complicating pregnancy in β-thalassemia (β-thal) has not been reported. Pregnancy itself or continuation of blood transfusions can further exacerbate the condition which may become life-threatening. The exact mechanism of hyperhemolysis is not well understood. A bystander hemolysis mechanism has been proposed. Treatment with steroids, immunoglobulins and cyclosporin can be life saving.
Hyperhemolysis syndrome in patients with sickle cell disease who are given compatible blood has been well described in the literature but a similar condition complicating pregnancy in β-thalassemia (β-thal) has not been reported. Pregnancy itself or continuation of blood transfusions can further exacerbate the condition which may become life-threatening. The exact mechanism of hyperhemolysis is not well understood. A bystander hemolysis mechanism has been proposed. Treatment with steroids, immunoglobulins and cyclosporin can be life saving.
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