BACKGROUND: Stereotactic radiosurgery (SRS) is increasingly considered for selected olfactory groove meningiomas (OGMs). OBJECTIVE: To investigate the safety and efficacy of SRS for OGMs. METHODS: From 20 institutions participating in the International Radiosurgery Research Foundation, we pooled patients who underwent SRS for histologically confirmed or radiologically suspected WHO grade I OGMs and were followed for 6 mo or more after the SRS. RESULTS: In total, 278 (median age 57 yr) patients underwent SRS for histologically confirmed (29%) or radiologically suspected (71%) WHO grade I OGMs Median treatment volume was 4.60 cm3 (range: 0.12-27.3 cm3), median prescription dose was 12 Gy, and median dose to the olfactory nerve was 11.20 Gy. During median post-SRS imaging follow-up of 39 mo (range: 6-240 mo), 43% of patients had partial or marginal response, 54% of patients had stable disease, and 3% of patients experienced progression. During median post-SRS clinical follow-up of 51 mo (range: 6-240 mo), 36 (13%) patients experienced clinical and/or radiological adverse radiation events (AREs). Elevated risk of AREs was associated with larger OGM volume (P = .009) and pre-SRS peritumoral T2/fluid-attenuated inversion-recovery signal abnormalities (P < .001). After the SRS, olfaction remained stable, improved, or deteriorated in 90%, 8%, and 2% of patients, respectively. Complete post-SRS anosmia was predicted by partial/complete anosmia before the SRS (odds ratio [OR] = 83.125; 95% CI [24.589-281.01], P < .001) and prior resection of OGM (OR = 3.919; 95% CI [1.713-8.970], P = .001). CONCLUSION: SRS is associated with durable local control of the majority of OGM patients with acceptable safety profile. SRS allows preservation or improvement of olfactory function in the majority of OGM patients.

• MeSH
• lidé středního věku MeSH
• lidé MeSH
• meningeální nádory * diagnostické zobrazování   radioterapie   chirurgie   MeSH
• meningeom * diagnostické zobrazování   radioterapie   chirurgie   MeSH
• následné studie MeSH
• radiochirurgie * škodlivé účinky   MeSH
• retrospektivní studie MeSH
• výsledek terapie MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• multicentrická studie MeSH

Background: Brain metastases (BM) from differentiated thyroid cancer are rare. Stereotactic radiosurgery (SRS) is commonly used for the treatment of BMs; however, the experience with SRS for thyroid cancer BMs remains limited. The goal of this international, multi-centered study was to evaluate the efficacy and safety of SRS for thyroid cancer BMs. Methods: From 10 institutions participating in the International Radiosurgery Research Foundation, we pooled patients with established papillary or follicular thyroid cancer diagnosis who underwent SRS for histologically confirmed or radiologically suspected BMs. We investigated patient overall survival (OS), local tumor control, and adverse radiation events (AREs). Results: We studied 42 (52% men) patients who underwent SRS for 122 papillary (83%) or follicular (17%) thyroid cancer BMs. The mean age at SRS was 59.86 ± 12.69 years. The mean latency from thyroid cancer diagnosis to SRS for BMs was 89.05 ± 105.49 months. The median number of BMs per patient was 2 (range: 1-10 BMs). The median SRS treatment volume was 0.79 cm3 (range: 0.003-38.18 cm3), and the median SRS prescription dose was 20 Gy (range: 8-24 Gy). The median survival after SRS for BMs was 14 months (range: 3-58 months). The OS was significantly shorter in patients harboring ≥2 BMs, when compared with patients with one BM (Log-rank = 5.452, p = 0.02). Two or more BMs (odds ratio [OR] = 3.688; confidence interval [CI]: 1.143-11.904; p = 0.03) and lower Karnofsky performance score at the time of SRS (OR = 0.807; CI: 0.689-0.945; p = 0.008) were associated with shorter OS. During post-SRS imaging follow-up of 25.21 ± 30.49 months, local failure (progression and/or radiation necrosis) of BMs treated with SRS was documented in five (4%) BMs at 7.2 ± 7.3 months after the SRS. At the last imaging follow-up, the majority of patients with available imaging data had stable intracranial disease (33%) or achieved complete (26%) or partial (24%) response. There were no clinical AREs. Post-SRS peritumoral T2/fluid attenuated inversion recovery signal hyperintensity was noted in 7% BMs. Conclusion: The SRS allows durable local control of papillary and follicular thyroid cancer BMs in the vast majority of patients. Higher number of BMs and worse functional status at the time of SRS are associated with shorter OS in patients with thyroid cancer BMs. The SRS is safe and is associated with a low risk of AREs.

• MeSH
• analýza přežití MeSH
• doba přežití bez progrese choroby MeSH
• dospělí MeSH
• folikulární adenokarcinom sekundární   chirurgie   MeSH
• Karnofského skóre MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladý dospělý MeSH
• nádory mozku sekundární   chirurgie   MeSH
• nádory štítné žlázy patologie   MeSH
• následné studie MeSH
• papilární karcinom sekundární   chirurgie   MeSH
• radiochirurgie škodlivé účinky   metody   MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• senioři nad 80 let MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• multicentrická studie MeSH

OBJECTIVE: Pituitary adenomas comprise about 3% of all intracranial tumors in pediatric patients. This study examines the role of stereotactic radiosurgery in the management of pediatric acromegaly or patients with Cushing disease (CD). METHODS: From an international consortium, we retrospectively collected treatment and outcome data on pediatric adrenocorticotrophic hormone and growth hormone-secreting pituitary adenomas treated with Gamma Knife radiosurgery (GKRS). There were a total of 36 patients including 24 with CD and 12 with acromegaly. The data were analyzed to assess outcomes including tumor control, endocrine remission, and adverse effects. Statistical analysis was performed to determine correlation between clinical/treatment parameters and outcomes. RESULTS: At the last follow-up after GKRS, endocrine remission rates for CD and acromegaly were 80% and 42%, respectively. Tumor control was achieved in 87.5% of patients with CD and in 42% of patients with acromegaly. New pituitary hormone deficiency occurred in 7 of the 36 patients at a median time of 18 months after GKRS (range, 12-81 months). The predictive factors for endocrine remission were age <15 years (P = 0.015) and margin dose (P = 0.042). The median endocrine follow-up was 63.7 months (range, 7-246 months). CONCLUSIONS: GKRS affords reasonable rates of endocrine remission and tumor control in most pediatric patients with functioning adenomas. The most common post-GKRS complication was hypopituitarism, although this occurred in only a few patients. Given the larger at-risk period for pediatric patients, further study is required to evaluate for delayed recurrences and hypopituitarism.

• MeSH
• akromegalie komplikace   diagnóza   radioterapie   MeSH
• dítě MeSH
• dospělí MeSH
• hypersekrece ACTH v hypofýze komplikace   diagnóza   radioterapie   MeSH
• Kaplanův-Meierův odhad MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• nádory hypofýzy komplikace   MeSH
• radiochirurgie * MeSH
• retrospektivní studie MeSH
• výsledek terapie MeSH
• Check Tag
• dítě MeSH
• dospělí MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• multicentrická studie MeSH

Úvod: Dvěma základními polohami pacienta při „awake“ operacích mozkových nádorů jsou poloha na boku a na zádech (supinační). Tyto polohy jsou výhodné pro pacienty s nádory lokalizovanými v blízkosti řečových center nebo uloženými v oblasti gyrus frontalis superior, případně precentralis, avšak mohou být nevyhovující při lokalizaci nádoru v parieto-okcipitální oblasti. V této kazuistice referujeme o případu „awake“ operace provedené v poloze pacienta v polosedě (semisitting). Popis kazuistiky: Pacient (57 let) byl léčen na našem pracovišti pro druhou recidivu multiformního glioblastomu se subkortikální invazí nádoru do postcentrálního gyru. Vzhledem k vysokému riziku těžkého pooperačního neurologického deficitu jsme se rozhodli pro provedení „awake“ operace, a to v poloze v polosedě, která umožňovala nejlepší expozici léze i pyramidové dráhy. Pyramidová dráha byla mapována subkortikální elektrickou stimulací Ojemannovým stimulátorem. Během celé „awake“ fáze operace byl pacient plně spolupracující a subjektivně popisoval polohu v polosedě jako pohodlnou. Po operaci nevznikl žádný nový neurologický deficit, pacient byl soběstačný, další onkologická léčba však navzdory plánu reradioterapie neproběhla. Závěr: Tato kazuistika popisuje úspěšné využití semisitting pozice během „awake“ operace a my doporučujeme její zvážení pro nádory v elokventních oblastech, jako jsou dolní parietální lobulus nebo postcentrální gyrus. Mohla by být využívána i při operacích spojených s mapováním zrakové dráhy.

Background: Lateral or supine positions are the traditional positions for cranial tumor resections performed with an “awake” component. These positions are used effectively for patients with tumors adjacent to speech centers or located in the superior frontal or precentral gyrus respectively. However, these may be unsatisfactory for tumors in a close proximity to the parieto-occipital region. In this case report, we describe “awake” surgery performed on a patient in semisitting position. Case description: A 57-year-old patient suffered second recurrence of a glioblastoma multiforme tumor with subcortical invasion of the postcentral gyrus. Due to a high risk of severe neurological deficit, it was decided to perform an awake surgery with the semisitting position providing the best exposure to the lesion and the pyramidal tract. The pyramidal tract of the patient was mapped using motor responses to regular stimuli during which the surgeon recected the tumor. The patient was fully cooperative throughout the procedure and subjectively described the semisitting position as comfortable. Postoperatively, the patient showed no signs of new neurological deficits. Planned re-radiation therapy was not performed. Conclusion: This clinical case demonstrates successful use of the semisitting position in “awake” surgery and we recommend considering its use for tumors in previously challenging locations, such as the lower parietal lobules or postcentral gyrus. This position could also be used during surgeries involving visual pathways mapping.

• Klíčová slova
• „awake“ operace,
• MeSH
• elektrická stimulace metody   MeSH
• glioblastom * chirurgie   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mapování mozku MeSH
• nádory mozku chirurgie   MeSH
• pyramidové dráhy MeSH
• radioterapie MeSH
• supinační poloha MeSH
• temenní lalok MeSH
• výsledek terapie MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• Publikační typ
• kazuistiky MeSH