Shrinking lung syndrome in pregnancy complicated by antiphospholipid antibody syndrome.

Abstract

Shrinking lung syndrome is characterized by pulmonary compromise secondary to unilateral or bilateral paralysis of the diaphragm. Shrinking lung syndrome was diagnosed in a patient with antiphospholipid syndrome after a cesarean delivery at 28 4/7 weeks of gestation. Signs and symptoms included unexplained right-side chest pain, dyspnea, tachypnea, and absent breath sounds at the right base of the lungs. After initiation of corticosteroids, her symptoms resolved. Although seen in association with systemic lupus erythematosus, shrinking lung syndrome has not been described with antiphospholipid syndrome or during pregnancy. Diagnosis and awareness are important because treatment with moderate- to high-dose corticosteroids appears to improve the clinical outcome.