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Management After Initial Surgery of Nonfunctioning Pituitary Adenoma: Surveillance, Radiotherapy or Surgery?

Overview
Journal Radiat Oncol
Publisher Biomed Central
Specialties Oncology
Radiology
Date 2022 Oct 13
PMID 36229880
Authors
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Abstract

Introduction: The first line of treatment for nonfunctioning pituitary adenoma (NFPA) is surgery. Adjuvant radiotherapy or surveillance and new treatment (second surgical operation or salvage radiotherapy) in case of recurrence are options discussed at the multidisciplinary tumor board. The purpose of this study was to evaluate the therapeutic outcome for each option.

Methods: The records of 256 patients followed with NFPA between 2007 and 2018 were retrospectively reviewed. Mean age at initial surgery was 55 years [18-86]. Post-operative MRI found a residual tumor in 87% of patients. Mean follow-up was 12.1 years [0.8-42.7].

Results: After initial surgery, 40 patients had adjuvant radiotherapy. At 5, 10 and 15 years progression-free survival (PFS) was significantly different after surgery alone (77%, 58% and 40%) compared to surgery and adjuvant radiotherapy (84%, 78% and 78%) (HR = 0.24 [0-0.53] p < 0.0005). Overall, after first, second or third surgical operation, 69 patients had adjuvant radiotherapy and 41 salvage radiotherapy. Five-year PFS was similar for adjuvant (90%) and salvage radiotherapy (97%) (p = 0.62). After a second surgical operation, 62% and 71% of patients were irradiated after 2 and 5 years respectively. The risk of corticotropic and thyrotropic deficiency rates were 38% and 59% after second or third surgical operation and 40% and 73% after radiotherapy. Brain tumors occurred in 4 patients: 1 meningioma present at initial surgery, and after radiotherapy, 1 neurinoma which appeared at 5 years, 1 glioblastoma at 13 years and 1 meningioma at 20 years.

Conclusion: Among patients treated by surgery for NFPA, a "wait-and-see" attitude should be an option since adjuvant radiotherapy is not superior to salvage radiotherapy. However, in case of recurrence or progression, the authors recommended delivery of salvage radiotherapy to avoid a second surgical operation.

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Caspar V, Giraud N, Charleux T, Beddok A, Bernard B, Martin M Clin Transl Radiat Oncol. 2025; 51():100902.

PMID: 39811541 PMC: 11729675. DOI: 10.1016/j.ctro.2024.100902.


Postsurgical outcomes of nonfunctioning pituitary adenomas: a patient-level meta-analysis.

Fong K, Lim M, Fu S, Low C, Chan Y, Deepak D Pituitary. 2023; 26(4):461-473.

PMID: 37389776 DOI: 10.1007/s11102-023-01335-2.

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