6705 Sheehan syndrome: a case report

Abstract Disclosure: F.S. Rodrigues: None. C.C. Silva: None. W. Da Silva: None. T.M. Caldas: None. L. Rocha: None. Introduction: Sheehan's Syndrome, or postpartum hypopituitarism, is characterized by hyperplasia and an increase in the number of prolactin-secreting cells, secondary to a major hemorrhagic event occurring during or after childbirth. In this situation, the anterior pituitary gland can increase in size and suffer ischemia due to vascular hypoflow. Consequently, there is low production of one or more of the hormones produced by the gland, which can generate heterogeneous clinical presentations. As a preventive treatment, polytransfusion is recommended in cases of large hemorrhage. OBJECTIVE: To present a case of Sheehan’s Syndrome, which developed after a birth complicated by a major hemorrhagic event, even after receiving polytransfusion. CASE REPORT: A woman, 45 years old, being monitored at the endocrinology outpatient clinic for 2 years. As a history, there was a severe hemorrhage during her cesarean section, which occurred 30 years ago, in which she received a blood transfusion of a total of 1.2 liters of packed red blood cells. 7 years ago, she was diagnosed with hypothyroidism and 2 years ago with hyperprolactinemia. In 2022, she was also diagnosed with adrenal insufficiency. At that time, she underwent a magnetic resonance imaging (MRI) scan of the sellaturcica region, which was found to be partially empty. The patient's recent exams showed TSH: 3.15 μUI/mL (0.4-4.0); Free T4: 0.88 ng/dL (0.93-1.7); Cortisol 8h: 8 μg/dL (5-25); LH: 15 mIU/mL (1.1-14.7); FSH: 43 mIU/mL (2.8-9); Estradiol: 8 ng/dL (12.4-398); Prolactin: 28 ng/mL (1.9-25), basal GH 0’ 0.054/30’ 2.51/60’ 2.48/90’ 3.74 ng/mL (up to 10), ACTH 17 pg/mL (up to 46). Since then, she has been undergoing endocrinological monitoring for hormone replacement therapy to treat the hormonal changes caused by late-diagnosed Sheehan Syndrome. DISCUSSION: Sheehan's Syndrome is a rare disease, characterized by low blood flow and necrosis of the pituitary gland due to postpartum hemorrhage. The diagnosis results from obtaining a good clinical history associated with hormonal levels. This patient presented significant bleeding after cesarean section requiring transfusions. However, despite transfusions, the patient developed hypothyroidism, hyperprolactinemia, and adrenal insufficiency. The MRI confirmed the suspected diagnosis, showing the partially empty sellaturcica. Conclusion: The diagnosis of Sheehan Syndrome is based on very broad clinical manifestations, with MRI of the sellaturcica contributing to confirming the diagnosis. Although the preventive treatment is blood transfusion, the patient developed the disease, highlighting the need for continued monitoring of pregnant women with a history of significant bleeding during childbirth. Therefore, outpatient monitoring of the patient is necessary with a focus on hormonal levels so that clinical complications are avoided. Presentation: 6/2/2024