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Clinical management and outcome of 36 invasive prolactinomas treated with dopamine agonist

Title
Clinical management and outcome of 36 invasive prolactinomas treated with dopamine agonist
Authors
Moon Sool Yang;Jae Won Hong;Sun Ho Kim;Eun Jig Lee;Seung Koo Lee
Issue Date
2011
Journal Title
Journal of Neuro-Oncology
ISSN
0167-594X
Citation
Journal of Neuro-Oncology, Vol.104(1) : 195~204, 2011
Abstract
Treatment of invasive prolactinoma, which has several characteristics including invasive growth into cavernous sinuses and formation of giant adenomas compressing adjacent neural structures, resulting in neurological dysfunction, has been very challenging. There are relatively few reports available describing long-term treatment outcome. Herein, we document the results of bromocriptine administration as initial treatment during average 44 months follow-up (up to 12 years) period. We retrospectively categorized 36 patients into four groups according to the results of 3 months of bromocriptine treatment: group 1, tumor volume reduction (TVR) >25% with normalized serum prolactin (NP) (n = 24); group 2, TVR >25% without NP (n = 4); group 3, TVR <25% with NP (n = 5); and group 4, TVR <25% without NP (n = 3). During follow-up, 22 patients (91.7%) in group 1 achieved TVR >50% with NP. Three patients (75%) in group 2 achieved TVR >50% with NP after treatment for 8 months. In group 3, four patients (80.0%) continued medication because of improvement of symptoms and achieved additional TVR (18.8-46.4%). Surgery was performed on five patients (one in group 2, one in group 3, and all three in group 4), and complete resection was achieved in four (80.0%). Overall, 25 (69.4%) of the 36 patients treated with bromocriptine had complete response and 6 (16.7%) had partial response but did not require surgery. Thus, the overall response rate was 86%, with only five patients (14%) requiring surgical debulking. NP was not achieved by surgery alone in all cases, even after total resection of tumor. Patients who achieve TVR >25% with NP with 3 months of bromocriptine administration had a high possibility of showing good long-term response (TVR >50% with NP) to bromocriptine. A higher dose of dopamine agonist (DA) or other DA should be considered for patients who achieve TVR >25% without NP.
URI
http://link.springer.com/article/10.1007%2Fs11060-010-0459-3

http://ir.ymlib.yonsei.ac.kr/handle/22282913/93591
DOI
10.1007/s11060-010-0459-3
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Neurosurgery
1. 연구논문 > 1. College of Medicine > Dept. of Radiology
1. 연구논문 > 1. College of Medicine > Dept. of Internal Medicine
Yonsei Authors
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