ECE2015 Guided Posters Pituitary–Therapy of Cushing's disease (7 abstracts)
Endocrinology Research Centre, Moscow, Russia.
Objective: To estimate the outcome of neurosurgery in patients with Cushings disease (CD) with and without pituitary adenoma visualisation on MRI.
Material and methods: Patients with confirmed CD (11.200811.2014) by both inferior petrosal sinus sampling (IPSS) and histological evaluation after neurosurgery were enrolled into the study. Subjects were referred for IPSS because of non-visualised pituitary adenoma or contradictory results of non-invasive tests. Remission of Cushings disease was confirmed in the event of development of adrenal insufficiency or normalisation of serum cortisol and 24 h urinary free cortisol (24hUFC) levels along with clinical remission at least during 36 months after neurosurgery. MRI was performed using Siemens Magnetom Harmony 1.0 T.
Results: A cohort of 113 (88 female) consecutive patients with CD confirmed by IPSS was enrolled, median of age (Q25Q75) 36 (2750) years old; 24hUFC 1903 (9224219) nmol/24h; ACTH 89.5 (60135) pg/ml. In 51 cases pituitary adenoma was not visualised on MRI with gadolinium, 33 subjects were referred for IPSS because of adenoma ≤6 mm, 29 patients underwent IPSS due to negative for CD non-invasive tests. After the first neurosurgery remission was not achieved in 15 (29.4%) patients out of 51 without visualised adenoma on MRI; and in 9 (17.3%) cases out of 62 patients with visualised pituitary adenoma P=0.066 OR- 2.45 (0.976.21).
Conclusion: Remission rate after neurosurgery does not statistically significant differ between patients with CD with non-visualised pituitary adenoma on MRI and other patients with CD initially referred for IPSS.