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Pituitary function before and after surgery for nonfunctioning pituitary adenomas-data from the Swedish Pituitary Register
Orebro Univ Hosp, Sweden; Orebro Univ, Sweden; Uppsala Univ Hosp, Sweden; Akadem Sjukhuset, Sweden.
Karolinska Univ Hosp, Sweden; Karolinska Inst, Sweden.
Lund Univ, Sweden.
Lund Univ, Sweden.
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2023 (English)In: European Journal of Endocrinology, ISSN 0804-4643, E-ISSN 1479-683X, Vol. 189, no 2, p. 217-224Article in journal (Refereed) Published
Abstract [en]

Objective Data on pre- and postoperative pituitary function in nonfunctioning pituitary adenomas (NFPA) are not consistent. We aimed to investigate pituitary function before and up to 5 years after transsphenoidal surgery with emphasis on the hypothalamic-pituitary-adrenal axis (HPA). Design and methods Data from the Swedish Pituitary Register was used to analyze anterior pituitary function in 838 patients with NFPA diagnosed between 1991 and 2014. Patients who were reoperated or had received radiotherapy were excluded. Results Preoperative ACTH, TSH, LH/FSH, and GH deficiencies were reported in 31% (236/755), 39% (300/769), 51% (378/742), and 28% (170/604) of the patients, respectively. Preoperative median tumor volume was 5.0 (2.4-9.0) cm(3). Among patients with preoperative, 1 year and 5 years postoperative data on the HPA axis (n = 428), 125 (29%) were ACTH-deficient preoperatively. One year postoperatively, 26% (32/125) of them had recovered ACTH function while 23% (70/303) patients had developed new ACTH deficiency. Thus, 1 year postoperatively, 163 (38%) patients were ACTH-deficient (P < .001 vs. preoperatively). No further increase was seen 5 years postoperatively (36%, P = .096). At 1 year postoperatively, recoveries in the TSH and LH/FSH axes were reported in 14% (33/241) and 15% (46/310), respectively, and new deficiencies in 22% (88/403) and 29% (83/288), respectively. Conclusions Adrenocorticotrophic hormone deficiency increased significantly at 1 year postoperatively. Even though not significant, some patients recovered from or developed new deficiency between 1 and 5 years postoperatively. This pattern was seen in all axes. Our study emphasizes that continuous individual evaluations are needed during longer follow-up of patients operated for NFPA.

Place, publisher, year, edition, pages
OXFORD UNIV PRESS , 2023. Vol. 189, no 2, p. 217-224
Keywords [en]
pituitary adenoma; transsphenoidal surgery; pituitary insufficiency; HPA axis; pituitary register
National Category
Surgery
Identifiers
URN: urn:nbn:se:liu:diva-197557DOI: 10.1093/ejendo/lvad104ISI: 001046486000001PubMedID: 37551511OAI: oai:DiVA.org:liu-197557DiVA, id: diva2:1795249
Available from: 2023-09-07 Created: 2023-09-07 Last updated: 2024-02-06

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Ekman, Bertil
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Division of Diagnostics and Specialist MedicineFaculty of Medicine and Health SciencesDepartment of Endocrinology
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