Marta Araujo-Castro1, Eider Pascual-Corrales2, Alberto Acitores Cancela3, Sara García Duque4, Luis Ley Urzaiz3, Víctor Rodríguez Berrocal3,4. 1. Neuroendocrinology Unit, Department of Endocrinology & Nutrition, Hospital Universitario Ramón y Cajal, Instituto de Investigación Biomédica Ramón y Cajal (IRYCIS), Madrid, Spain. marta.araujo@salud.madrid.org. 2. Neuroendocrinology Unit, Department of Endocrinology & Nutrition, Hospital Universitario Ramón y Cajal, Instituto de Investigación Biomédica Ramón y Cajal (IRYCIS), Madrid, Spain. 3. Pituitary Surgery Unit, Department of Neurosurgery, Hospital Universitario Ramón y Cajal, Madrid, Spain. 4. Endoscopic Skull Base Unit, Department of Neurosurgery, Hospital Universitario HM Puerta del Sur, Madrid, Spain.
Abstract
PURPOSE: To investigate the status of preoperative anterior pituitary function in patients undergoing pituitary adenoma (PA) resection and to identify factors associated with preoperative anterior pituitary dysfunction (APD). METHODS: Patients with functioning and nonfunctioning PAs who underwent pituitary adenoma resection for first time, from January 2009 to December 2019 were analyzed. RESULTS: Total sample included 232 patients; 123 (53.2%) females, mean age at diagnosis was 53.3 years. Sixty-three percent presented as nonfunctioning PAs and 37.1% as functioning PAs. Eighty-eight percent were macroadenomas and 34.9% had cavernous sinus invasion. APD was demonstrated in 36.2% (n = 84) of the patients. The FSH/LH deficit was the most frequent anterior pituitary deficit (31.9%); followed by ACTH (18.1%); TSH (16.4%) and GH (13.8%). We identified as independent risk factors of APD, male sex (OR = 6.1, 95% CI = 3.3-11.0); age (OR = 1.03 for each year, 95% CI = 1.01-1.04), diabetes mellitus (OR = 3.5, 95% CI = 1.63-7.69), pituitary apoplexy presentation (OR = 4.3, 95% CI = 1.3-14.5) and tumor size (OR = 1.06 for each mm, 95% CI = 1.04-1.09). Nonfunctioning PAs (NFPA) had higher risk of APD than functioning PAs (FPA) (OR = 2.8 (95% CI = 1.5-5.0), but these differences disappeared after adjusted by tumor size (OR adjusted by tumor size = 1.7, 95% CI = 0.9-3.3). The tumor size with the highest diagnostic accuracy to predict hypopituitarism was 22 mm (sensitivity of 61.9% and specificity of 70.1%). CONCLUSION: More than one third of PAs candidates for surgery had APD. The male sex, diabetes, an older age, pituitary apoplexy, and larger PAs were risk factors of APD. Hence, in these patients, the hormonal study should be prioritized and the need for dynamic tests must be carefully assessed.
PURPOSE: To investigate the status of preoperative anterior pituitary function in patients undergoing pituitary adenoma (PA) resection and to identify factors associated with preoperative anterior pituitary dysfunction (APD). METHODS:Patients with functioning and nonfunctioning PAs who underwent pituitary adenoma resection for first time, from January 2009 to December 2019 were analyzed. RESULTS: Total sample included 232 patients; 123 (53.2%) females, mean age at diagnosis was 53.3 years. Sixty-three percent presented as nonfunctioning PAs and 37.1% as functioning PAs. Eighty-eight percent were macroadenomas and 34.9% had cavernous sinus invasion. APD was demonstrated in 36.2% (n = 84) of the patients. The FSH/LH deficit was the most frequent anterior pituitary deficit (31.9%); followed by ACTH (18.1%); TSH (16.4%) and GH (13.8%). We identified as independent risk factors of APD, male sex (OR = 6.1, 95% CI = 3.3-11.0); age (OR = 1.03 for each year, 95% CI = 1.01-1.04), diabetes mellitus (OR = 3.5, 95% CI = 1.63-7.69), pituitary apoplexy presentation (OR = 4.3, 95% CI = 1.3-14.5) and tumor size (OR = 1.06 for each mm, 95% CI = 1.04-1.09). Nonfunctioning PAs (NFPA) had higher risk of APD than functioning PAs (FPA) (OR = 2.8 (95% CI = 1.5-5.0), but these differences disappeared after adjusted by tumor size (OR adjusted by tumor size = 1.7, 95% CI = 0.9-3.3). The tumor size with the highest diagnostic accuracy to predict hypopituitarism was 22 mm (sensitivity of 61.9% and specificity of 70.1%). CONCLUSION: More than one third of PAs candidates for surgery had APD. The male sex, diabetes, an older age, pituitary apoplexy, and larger PAs were risk factors of APD. Hence, in these patients, the hormonal study should be prioritized and the need for dynamic tests must be carefully assessed.
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