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Albano L, Losa M, Garbin E, Pompeo E, Barzaghi LR, Mortini P. Efficacy and safety of radiosurgery in acromegaly. Best Pract Res Clin Endocrinol Metab 2024; 38:101898. [PMID: 38806304 DOI: 10.1016/j.beem.2024.101898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Stereotactic radiosurgery (SRS) more and more frequently plays a crucial role in the treatment of acromegaly. We provide a systematic review of the literature and meta-analysis, according to PRISMA, on SRS for the management of growth hormone (GH)-secreting pituitary adenomas, including several radiosurgical techniques, with the aim of describing efficacy and safety of this treatment. A weighted random effects model was used to calculate pooled outcome estimates. From 346 abstract reviews, 27 retrospective studies were included. Despite the variability in hormonal remission criteria and the heterogeneity between treatment guidelines among included studies, most of them reported an endocrine remission rate between 40% and 60%. Random effects meta-analysis for overall endocrine remission and 5-year probability of remission estimate after SRS were 46% (95% CI: 39-53%) and of 48% (95% CI: 38-57%), respectively. Random effects meta-analysis for new hypopituitarism estimate after SRS was 23% (95% CI: 17-29%). Furthermore, incidence of radiation induced optic neuropathy after SRS ranged between 0% and 6% This meta-analysis confirms and quantifies safety and effectiveness of SRS to achieve endocrine remission after surgical management in acromegaly.
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Affiliation(s)
- Luigi Albano
- Neurosurgery and Gamma Knife Radiosurgery Unit, I.R.C.C.S. Ospedale San Raffaele, Milan, Italy; Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology, I.R.C.C.S. Ospedale San Raffaele, Milan, Italy
| | - Marco Losa
- Neurosurgery and Gamma Knife Radiosurgery Unit, I.R.C.C.S. Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Enrico Garbin
- Neurosurgery and Gamma Knife Radiosurgery Unit, I.R.C.C.S. Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy
| | - Edoardo Pompeo
- Neurosurgery and Gamma Knife Radiosurgery Unit, I.R.C.C.S. Ospedale San Raffaele, Milan, Italy
| | - Lina Raffaella Barzaghi
- Neurosurgery and Gamma Knife Radiosurgery Unit, I.R.C.C.S. Ospedale San Raffaele, Milan, Italy
| | - Pietro Mortini
- Neurosurgery and Gamma Knife Radiosurgery Unit, I.R.C.C.S. Ospedale San Raffaele, Milan, Italy; Vita-Salute San Raffaele University, Milan, Italy.
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Maroufi SF, Sabahi M, Aarabi SS, Samadian M, Dabecco R, Adada B, Arce KM, Borghei-Razavi H. Recurrent acromegaly: a systematic review on therapeutic approaches. BMC Endocr Disord 2024; 24:13. [PMID: 38279102 PMCID: PMC10811946 DOI: 10.1186/s12902-023-01533-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 12/15/2023] [Indexed: 01/28/2024] Open
Abstract
BACKGROUND AND OBJECTIVE Management of recurrent acromegaly is challenging for both neurosurgeons and endocrinologists. Several treatment options including repeat surgery, medical therapy, and radiation are offered for such patients. The efficacy of these modalities for the treatment of recurrence has not been studied previously in the literature. In this study, we aim to systematically review the existing cases of recurrence and come to a conclusion regarding the appropriate treatment in such cases. METHOD A systematic review was performed through PubMed, Scopus, Web of Science, and Cochrane database to identify studies reporting the treatment outcome of recurrent acromegaly patients. Using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, the included studies were reviewed for primary and secondary treatment, complications, and outcomes of the secondary treatment. RESULTS The systematic review retrieved 23 records with 95 cases of recurrent acromegaly. The mean time of recurrence was 4.16 years after the initial treatment. The most common primary treatment was surgery followed by radiotherapy. The remission rate was significantly higher in medical and radiotherapy compared to surgical treatment. CONCLUSION In cases of recurrent acromegaly, the patient may benefit more from radiotherapy and medical therapy compared to surgery. As the quality of evidence is low on this matter feature studies specifically designed for recurrent patients are needed.
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Affiliation(s)
- Seyed Farzad Maroufi
- Neurosurgery Research Network (NRN), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammadmahdi Sabahi
- Department of Neurological Surgery, Pauline Braathen Neurological Centre, Cleveland Clinic Florida, Weston, Florida, USA
| | - Seyed Sahab Aarabi
- Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Samadian
- Department of Neurosurgery, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rocco Dabecco
- Department of Neurological Surgery, Pauline Braathen Neurological Centre, Cleveland Clinic Florida, Weston, Florida, USA
| | - Badih Adada
- Department of Neurological Surgery, Pauline Braathen Neurological Centre, Cleveland Clinic Florida, Weston, Florida, USA
| | - Karla M Arce
- Department of Endocrinology Diabetes and Metabolism, Cleveland Clinic Florida, Weston, Florida, USA
| | - Hamid Borghei-Razavi
- Department of Neurological Surgery, Pauline Braathen Neurological Centre, Cleveland Clinic Florida, Weston, Florida, USA.
- Department of Neurological Surgery, Pauline Braathen Neurological Centre, 2950 Cleveland Clinic Blvd., Weston, FL, 33331, USA.
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Mathieu D, Kotecha R, Sahgal A, De Salles A, Fariselli L, Pollock BE, Levivier M, Ma L, Paddick I, Regis J, Yomo S, Suh JH, Rubens M, Sheehan JP. Stereotactic radiosurgery for secretory pituitary adenomas: systematic review and International Stereotactic Radiosurgery Society practice recommendations. J Neurosurg 2021; 136:801-812. [PMID: 34479203 DOI: 10.3171/2021.2.jns204440] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 02/19/2021] [Indexed: 11/06/2022]
Abstract
OBJECTIVE A systematic review was performed to provide objective evidence on the use of stereotactic radiosurgery (SRS) in the management of secretory pituitary adenomas and develop consensus recommendations. METHODS The authors performed a systematic review of the English-language literature up until June 2018 using the PRISMA guidelines. The PubMed (Medline), Embase, and Cochrane databases were searched. A total of 45 articles reporting single-institution outcomes of SRS for acromegaly, Cushing's disease, and prolactinomas were selected and included in the analysis. RESULTS For acromegaly, random effects meta-analysis estimates for crude tumor control rate, crude endocrine remission rate, and any new hypopituitarism rates were 97.0% (95% CI 96.0%-98.0%), 44.0% (95% CI 35.0%-53.0%), and 17.0% (95% CI 13.0%-23.0%), respectively. For Cushing's disease, random effects estimates for crude tumor control rate, crude endocrine remission rate, and any new hypopituitarism rate were 92.0% (95% CI 87.0%-95.0%), 48.0% (95% CI 35.0%-61.0%), and 21.0% (95% CI 13.0%-31.0%), respectively. For prolactinomas, random effects estimates for crude tumor control rate, crude endocrine remission rate, and any new hypopituitarism rate were 93.0% (95% CI 90.0%-95.0%), 28.0% (95% CI 19.0%-39.0%), and 12.0% (95% CI 6.0%-24.0%), respectively. Meta-regression analysis did not show a statistically significant association between mean margin dose with crude endocrine remission rate or mean margin dose with development of any new hypopituitarism rate for any of the secretory subtypes. CONCLUSIONS SRS offers effective tumor control of hormone-producing pituitary adenomas in the majority of patients but a lower rate of endocrine improvement or remission.
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Affiliation(s)
- David Mathieu
- 1Division of Neurosurgery, Université de Sherbrooke, Centre de recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Rupesh Kotecha
- 2Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida
| | - Arjun Sahgal
- 3Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Ontario, Canada
| | - Antonio De Salles
- 4Department of Neurosurgery, University of California, Los Angeles, California
| | - Laura Fariselli
- 5Radiotherapy Unit-Neurosurgery Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Bruce E Pollock
- 6Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Marc Levivier
- 7Department of Neurosurgery and Gamma Knife Center, Lausanne University Hospital, Lausanne, Switzerland
| | - Lijun Ma
- 8Department of Radiation Oncology, University of California, San Francisco, California
| | - Ian Paddick
- 9Medical Physics Ltd., Reading, United Kingdom
| | - Jean Regis
- 10Cromwell Hospital, London, United Kingdom.,11Functional and Stereotaxic Neurosurgery Department, Clinical Neuroscience Federation, La Timone Hospital, Aix-Marseille University, Marseille, France
| | - Shoji Yomo
- 12Division of Radiation Oncology, Aizawa Comprehensive Cancer Center, Aizawa Hospital, Matsumoto, Japan
| | - John H Suh
- 13Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio; and
| | - Muni Rubens
- 2Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida
| | - Jason P Sheehan
- 14Department of Neurological Surgery, University of Virginia, Charlottesville, Virginia
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Lian X, Shen J, Gu Z, Yan J, Sun S, Hou X, You H, Xing B, Zhu H, Shen J, Zhang F. Intensity-modulated Radiotherapy for Pituitary Somatotroph Adenomas. J Clin Endocrinol Metab 2020; 105:5905930. [PMID: 32930785 DOI: 10.1210/clinem/dgaa651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/11/2020] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To summarize our experience in the treatment of pituitary somatotroph adenomas by fractionated intensity-modulated radiotherapy (IMRT), describe the treatment outcomes, and determine predictors. METHODS AND MATERIALS Patients with pituitary somatotroph adenoma treated by IMRT in our institution from August 2009 to January 2019 were reviewed. A total of 113 patients (37 male) were included in this study. The median age was 33 years (range 12-67 years). A total of 112 patients had not achieved complete remission after surgery, and 1 patient was treated by radiotherapy (RT) alone because she refused to surgery. The median growth hormone level was 8.6 ng/mL (range 2-186 ng/mL) and the median insulin-like growth factor (IGF)-1 level was 732 ng/mL (range 314-1485 ng/mL) pre-RT. The radiation doses to clinical target volume were usually 50-56 Gy in 25 to 30 fractions and to gross tumor volume were 60.2 Gy in 28 fractions while simultaneous integrated boost-IMRT used. After RT, the patients were followed up with endocrine testing every 6 to 12 months and magnetic resonance imaging annually. Endocrine complete remission was defined as a normal sex- and age-adjusted IGF-1 level without any pituitary suppressive medications. The outcomes including endocrine remission and new hypopituitarism after RT were recorded. The median follow-up time was 36 months (range 6-105.5 months). RESULTS The endocrine complete remission rates of IGF-1 at 1, 2, 3, and 5 years were 6%, 22.8%, 48.6%, and 74.3%, respectively. The median time to complete remission was 36.2 ± 3.8 months. The tumor control rate was 99% during the follow-up. The overall incidence of RT-induced hypopituitarism was 28.3% at the last follow-up. Univariate and multivariate analysis demonstrated that tumor sizes before RT, pre-RT IGF-1 level, and age significant predicted the endocrine remission. CONCLUSIONS IMRT is a highly effective treatment for pituitary somatotroph adenoma. Endocrine remission rate, tumor control rate, the median time to remission and hypopituitarism incidence are similar to stereotactic radiosurgery. Age and IGF-1 level before RT were significant predictive factors in endocrine remission.
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Affiliation(s)
- Xin Lian
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Jing Shen
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Zhaoqi Gu
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Junfang Yan
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Shuai Sun
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xiaorong Hou
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Hui You
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bing Xing
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huijuan Zhu
- Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jie Shen
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Fuquan Zhang
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
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Graffeo CS, Donegan D, Erickson D, Brown PD, Perry A, Link MJ, Young WF, Pollock BE. The Impact of Insulin-Like Growth Factor Index and Biologically Effective Dose on Outcomes After Stereotactic Radiosurgery for Acromegaly: Cohort Study. Neurosurgery 2020; 87:538-546. [PMID: 32267504 PMCID: PMC7426191 DOI: 10.1093/neuros/nyaa054] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 01/30/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Stereotactic radiosurgery (SRS) is a safe and effective treatment for acromegaly. OBJECTIVE To improve understanding of clinical and dosimetric factors predicting biochemical remission. METHODS A single-institution cohort study of nonsyndromic, radiation-naïve patients with growth hormone-producing pituitary adenomas (GHA) having single-fraction SRS between 1990 and 2017. Exclusions were treatment with pituitary suppressive medications at the time of SRS, or <24 mo of follow-up. The primary outcome was biochemical remission-defined as normalization of insulin-like growth factor-1 index (IGF-1i) off suppression. Biochemical remission was assessed using Cox proportional hazards. Prior studies reporting IGF-1i were assessed via systematic literature review and meta-analysis using random-effect modeling. RESULTS A total of 102 patients met study criteria. Of these, 46 patients (45%) were female. The median age was 49 yr (interquartile range [IQR] = 37-59), and the median follow-up was 63 mo (IQR = 29-100). The median pre-SRS IGF-1i was 1.66 (IQR = 1.37-3.22). The median margin dose was 25 Gy (IQR = 21-25); the median estimated biologically effective dose (BED) was 169.49 Gy (IQR = 124.95-196.00). Biochemical remission was achieved in 58 patients (57%), whereas 22 patients (22%) had medication-controlled disease. Pre-SRS IGF-1i ≥ 2.25 was the strongest predictor of treatment failure, with an unadjusted hazard ratio (HR) of 0.51 (95% CI = 0.26-0.91, P = .02). Number of isocenters, margin dose, and BED predicted remission on univariate analysis, but after adjusting for sex and baseline IGF-1i, only BED remained significant-and was independently associated with outcome in continuous (HR = 1.01, 95% CI = 1.00-1.01, P = .02) and binary models (HR = 2.27, 95% CI = 1.39-5.22, P = .002). A total of 24 patients (29%) developed new post-SRS hypopituitarism. Pooled HR for biochemical remission given subthreshold IGF-1i was 2.25 (95% CI = 1.33-3.16, P < .0001). CONCLUSION IGF-1i is a reliable predictor of biochemical remission after SRS. BED appears to predict biochemical outcome more reliably than radiation dose, but confirmatory study is needed.
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Affiliation(s)
| | - Diane Donegan
- Division of Endocrinology, Indiana University, Indianapolis, Indiana
| | - Dana Erickson
- Department of Endocrinology, Mayo Clinic, Rochester, Minnesota
| | - Paul D Brown
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
| | - Avital Perry
- Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
| | - Michael J Link
- Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
- Department of Otorhinolaryngology, Mayo Clinic, Rochester, Minnesota
| | - William F Young
- Department of Endocrinology, Mayo Clinic, Rochester, Minnesota
| | - Bruce E Pollock
- Department of Neurological Surgery, Mayo Clinic, Rochester, Minnesota
- Department of Radiation Oncology, Mayo Clinic, Rochester, Minnesota
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Singh R, Didwania P, Lehrer EJ, Sheehan D, Sheehan K, Trifiletti DM, Sheehan JP. Stereotactic radiosurgery for acromegaly: an international systematic review and meta-analysis of clinical outcomes. J Neurooncol 2020; 148:401-418. [PMID: 32506372 DOI: 10.1007/s11060-020-03552-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 05/30/2020] [Indexed: 02/01/2023]
Abstract
INTRODUCTION We performed a systematic review and meta-analysis of clinical outcomes for patients with acromegaly treated with stereotactic radiosurgery (SRS). METHODS Primary outcomes were 5- and 10-year endocrine remission (ER) and endocrine control (EC). Secondary outcomes were 10-year radiographic local control (LC), visual toxicity, and hypopituitarism rates. Weighted random effects meta-analyses using the DerSimonian and Laird methods were conducted to characterize and compare effect sizes. Mixed effects regression models were used to examine correlations between potential prognostic factors and primary and secondary outcomes. RESULTS In total, 1533 patients across 20 published studies with acromegaly treated with SRS were included. At 5-years, estimated ER and EC rates were 43.2% (95% CI 31.7-54.6%) and 55.0% (95% CI 27.6-82.4%), respectively. At 10-years, estimated ER and EC rates were 56.9% (95% CI 47.5-66.4%) and 69.7% (95% CI 47.7-91.8%), respectively. The estimated 10-year LC rate was 92.8% (95% CI 83.0-100%). Visual toxicity and hypopituitarism following SRS were estimated to be 2.7% (95% CI 1.3-4.2%) and 26.8% (95% CI 16.9-36.7%), respectively. Every 1 Gy increase in margin prescription dose beyond 17 Gy was estimated to result in a 0.41% increased risk of visual toxicity (p = 0.03). No prognostic factors were associated with EC, ER, LC, or hypopituitarism. CONCLUSIONS SRS was well-tolerated in the management of pituitary acromegaly resulting in gradually improving ER and EC rates over time that approached 60% and 70%. SRS-related visual loss is an uncommon treatment-related side effect, and patient-specific clinical decision making remains critical.
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Affiliation(s)
- Raj Singh
- Department of Radiation Oncology, Virginia Commonwealth University Health System, Richmond, VA, USA
| | - Prabhanjan Didwania
- Rady School of Management, University of California at San Diego, San Diego, CA, USA
| | - Eric J Lehrer
- Department of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Darrah Sheehan
- Department of Neurosurgery, University of Virginia, School of Medicine, Box 800212, Charlottesville, VA, 22903, USA
| | - Kimball Sheehan
- Department of Neurosurgery, University of Virginia, School of Medicine, Box 800212, Charlottesville, VA, 22903, USA
| | | | - Jason P Sheehan
- Department of Neurosurgery, University of Virginia, School of Medicine, Box 800212, Charlottesville, VA, 22903, USA.
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Gupta A, Xu Z, Kano H, Sisterson N, Su YH, Krsek M, Nabeel AM, El-Shehaby A, Karim KA, Martínez-Moreno N, Mathieu D, McShane BJ, Martínez-Álvarez R, Reda WA, Liscak R, Lee CC, Lunsford LD, Sheehan JP. Upfront Gamma Knife radiosurgery for Cushing's disease and acromegaly: a multicenter, international study. J Neurosurg 2019; 131:532-538. [PMID: 30117768 DOI: 10.3171/2018.3.jns18110] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 03/21/2018] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Gamma Knife radiosurgery (GKS) is typically used after failed resection in patients with Cushing's disease (CD) and acromegaly. Little is known about the upfront role of GKS for patients with CD and acromegaly. In this study, the authors examine the outcome of upfront GKS for patients with these functioning adenomas. METHODS An international group of 7 Gamma Knife centers sent pooled data from 46 patients (21 with CD and 25 with acromegaly) undergoing upfront GKS to the coordinating center of the study for analysis. Diagnosis was established on the basis of clinical, endocrine, and radiological studies. All patients were treated on a common radiosurgical platform and longitudinally followed for tumor control, endocrine remission, and hypopituitarism. Patients received a tumor median margin dose of 25 Gy (range 12-40.0 Gy) at a median isodose of 50%. RESULTS The median endocrine follow-up was 69.5 months (range 9-246 months). Endocrine remission was achieved in 51% of the entire cohort, with 28% remission in acromegaly and 81% remission for those with CD at the 5-year interval. Patients with CD achieved remission earlier as compared to those with acromegaly (p = 0.0005). In patients post-GKS, the pituitary adenoma remained stable (39%) or reduced (61%) in size. Hypopituitarism occurred in 9 patients (19.6%), and 1 (2.2%) developed third cranial nerve (CN III) palsy. Eight patients needed further intervention, including repeat GKS in 6 and transsphenoidal surgery in 2. CONCLUSIONS Upfront GKS resulted in good tumor control as well as a low rate of adverse radiation effects in the whole group. Patients with CD achieved a faster and far better remission rate after upfront GKS in comparison to patients with acromegaly. GKS can be considered as an upfront treatment in carefully selected patients with CD who are unwilling or unable to undergo resection, but it has a more limited role in acromegaly.
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Affiliation(s)
- Amitabh Gupta
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Zhiyuan Xu
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
| | - Hideyuki Kano
- 2Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Nathaniel Sisterson
- 2Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Yan-Hua Su
- 3Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Michal Krsek
- 4Second Department of Medicine, Third Faculty of Medicine of the Charles University, Faculty Hospital Kralovske Vinohrady, Prague, Czech Republic
| | - Ahmed M Nabeel
- 5Gamma Knife Center Cairo-Nasser Institute, Neurosurgery Department, Benha University, Benha, Egypt
| | - Amr El-Shehaby
- 6Gamma Knife Center Cairo-Nasser Institute, Neurosurgery Department, Ain Shams University, Cairo, Egypt
| | - Khaled A Karim
- 7Gamma Knife Center Cairo-Nasser Institute, Clinical Oncology Department, Ain Shams University, Cairo, Egypt
| | - Nuria Martínez-Moreno
- 8Department of Functional Neurosurgery and Radiosurgery, Ruber International Hospital, Madrid, Spain
| | - David Mathieu
- 9Division of Neurosurgery, Université de Sherbrooke, Centre de Recherche du CHUS, Sherbrooke, Québec, Canada; and
| | - Brendan J McShane
- 10Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague, Czech Republic
| | - Roberto Martínez-Álvarez
- 8Department of Functional Neurosurgery and Radiosurgery, Ruber International Hospital, Madrid, Spain
| | - Wael A Reda
- 6Gamma Knife Center Cairo-Nasser Institute, Neurosurgery Department, Ain Shams University, Cairo, Egypt
| | - Roman Liscak
- 10Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague, Czech Republic
| | - Cheng-Chia Lee
- 3Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - L Dade Lunsford
- 2Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Jason P Sheehan
- 1Department of Neurological Surgery, University of Virginia Health System, Charlottesville, Virginia
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Abstract
Radiation therapy (RT) is an effective treatment for patients with either nonfunctioning or secreting pituitary adenomas unsuccessfully treated by surgery and/or medical therapy, resulting in local control of 90-95% at 5-10 years and variable normalization of hormonal hypersecretion for patients with GH-, ACTH-, and prolactin-secreting adenomas in the range of 40-80% at 5 years; however, its use has been limited because of concerns regarding potential late toxicity of radiation and delayed efficacy in normalization of hormone hypersecretion. In the last decades, there have been advances in all aspects of radiation treatment, including more accurate immobilization, imaging, treatment planning and dose delivery. RT has evolved with the development of highly conformal stereotactic techniques and new planning and dose delivery techniques, including intensity-modulated radiotherapy (IMRT) and volumetric modulated arc therapy (VMAT). All these new techniques allow precise and sharply focused radiation delivery reducing the dose to surrounding critical neurovascular and brain structures, and potentially limiting the long-term consequences of radiation treatments. In this review, we present a critical analysis of the more recent available literature on the use of RT in patients with both nonfunctioning and secreting pituitary adenomas, focussing particularly on the risk/benefit ratio of modern radiation techniques.
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Affiliation(s)
- Giuseppe Minniti
- Radiation Unit, UPMC Hillman Cancer Center, San Pietro Hospital, Rome, Italy.
| | - John Flickinger
- Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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Shrivastava A, Mohammed N, Xu Z, Liščák R, Kosak M, Krsek M, Karim KA, Lee CC, Martínez-Moreno N, Lee Vance M, Lunsford LD, Sheehan JP. Outcomes After Gamma Knife Stereotactic Radiosurgery in Pediatric Patients with Cushing Disease or Acromegaly: A Multi-Institutional Study. World Neurosurg 2019; 125:e1104-e1113. [PMID: 30790739 DOI: 10.1016/j.wneu.2019.01.252] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/24/2019] [Accepted: 01/25/2019] [Indexed: 01/06/2023]
Abstract
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.
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Affiliation(s)
- Adesh Shrivastava
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia, USA
| | - Nasser Mohammed
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia, USA
| | - Zhiyuan Xu
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia, USA
| | - Roman Liščák
- Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague, USA
| | - Mikulas Kosak
- Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague, USA
| | - Michal Krsek
- Department of Stereotactic and Radiation Neurosurgery, Na Homolce Hospital, Prague, USA
| | | | - Cheng-Chia Lee
- Department of Neurosurgery, Taipei Veteran General Hospital, Taiwan, USA
| | - Nuria Martínez-Moreno
- Department of Neurological Surgery and Gamma Knife Radiosurgery, Ruber International Hospital, Madrid, USA
| | - Mary Lee Vance
- Department of Medicine, University of Virginia Health System, Charlottesville, Virginia, USA
| | - L Dade Lunsford
- Department of Neurosurgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Jason P Sheehan
- Department of Neurosurgery, University of Virginia, Charlottesville, Virginia, USA.
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10
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Clinical outcomes of perioptic tumors treated with hypofractionated stereotactic radiotherapy using CyberKnife® stereotactic radiosurgery. J Neurooncol 2018; 139:679-688. [DOI: 10.1007/s11060-018-2913-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 05/25/2018] [Indexed: 12/30/2022]
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11
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Patibandla MR, Xu Z, Sheehan JP. Factors affecting early versus late remission in acromegaly following stereotactic radiosurgery. J Neurooncol 2018; 138:209-216. [PMID: 29417401 DOI: 10.1007/s11060-018-2792-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 02/01/2018] [Indexed: 11/25/2022]
Abstract
Stereotactic radiosurgery (SRS) is a well-established treatment modality for patients with acromegaly. Our previously published study demonstrated a median time to remission of 29 months. This study aims to identify factors affecting the timing of remission and also to quantify the rate of late remission. This is a retrospective analysis of acromegaly patients who underwent SRS between 1988 and 2016. Early and late remissions were defined based on our prior median remission time of 29 months. The median imaging and endocrine follow-ups are 66 and 104.8 months, respectively. Multivariate analysis was conducted to analyze factors leading to late remission. A total number of 157 patients, of those 102 (64.9%) patients achieved remission. of those 102 patients, 62 patients (60.7%) had remission in less than 29 months (early remission) whereas 40 patients (39.3%) achieved remission later than (late remission) 29 months. The two groups differed significantly in the time interval between the last resection and the first SRS (p = 0.040) whole sella radiosurgery (p = 0.025) or radiosurgery to the cavernous sinus (p = 0.041). Competing risk analysis showed the interval between resection and SRS was significantly longer in the late remission group (HR 1.013, 95% CI 1.004-1.02; p = 0.007). Fifty-one of 157 patients (32.5%) developed a new endocrine deficiency following SRS. Those with shorter time between resection and SRS were more likely to achieve early remission. While most patients achieve remission in less than 4 years, the latency of effect with SRS yields a small percentage of patients achieving remission beyond that time point.
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Affiliation(s)
- Mohana Rao Patibandla
- Department of Neurosurgery, University of Virginia, P.O. Box 800212, Charlottesville, VA, 22908, USA
| | - Zhiyuan Xu
- Department of Neurosurgery, University of Virginia, P.O. Box 800212, Charlottesville, VA, 22908, USA
| | - Jason P Sheehan
- Department of Neurosurgery, University of Virginia, P.O. Box 800212, Charlottesville, VA, 22908, USA.
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12
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Zibar Tomšić K, Dušek T, Kraljević I, Heinrich Z, Solak M, Vučinović A, Ozretić D, Mihailović Marasanov S, Hršak H, Kaštelan D. Hypopituitarism after gamma knife radiosurgery for pituitary adenoma. Endocr Res 2017; 42:318-324. [PMID: 28537768 DOI: 10.1080/07435800.2017.1323913] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE The aim of the study was to investigate the incidence of and risk factors for hypopituitarism after gamma knife radiosurgery (GKRS) for pituitary adenoma. MATERIALS AND METHODS We conducted a retrospective analysis of the pituitary function of 90 patients who underwent GKRS for pituitary adenoma at the University Hospital Centre Zagreb between 2003 and 2014. Twenty seven of them met the inclusion criteria and the others were excluded from the study due to pituitary insufficiency which was present before GKRS. Eighteen patients had non-functioning and 9 patients had secretory adenomas. Median patients' age was 56 years (24-82). GKRS was performed using the Leksell gamma knife Model C. The median prescription radiation dose was 20 Gy (15-25) and the median tumor volume size was 3.4 cm3 (0.06-16.81). New onset hypopituitarism was defined as a new deficit of one of the three hormonal axes (corticotroph, thyreotroph, or gonadotroph) ≥3 months following GKRS. SPSS was used for statistical analysis, with the significance level at P<0.05. RESULTS During the median follow-up period of 72 months (range 6-144), 30% of patients developed new hypopituitarism after GKRS. This corresponds to incidence of one new case of hypopituitarism per 15 patient-years. Age, gender, tumor function, tumor volume, suprasellar extension, prescription dose of radiation, as well as dose-volume to the pituitary gland, stalk and hypothalamus were not predictive factors for the development of hypopituitarism. CONCLUSIONS In our cohort of patients with pituitary tumors who underwent GKRS, 30% developed new hypopituitarism during the follow-up period.
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Affiliation(s)
- Karin Zibar Tomšić
- a Vuk Vrhovac University Clinic for Diabetes , Endocrinology and Metabolic Diseases, Merkur University Hospital , Dugi Dol 4a, Zagreb , Croatia
| | - Tina Dušek
- b Department of Endocrinology , University Hospital Centre Zagreb , Zagreb , Croatia
- c School of Medicine , University of Zagreb , Zagreb , Croatia
| | - Ivana Kraljević
- b Department of Endocrinology , University Hospital Centre Zagreb , Zagreb , Croatia
| | - Zdravko Heinrich
- d Department of Neurosurgery , Gamma Knife Centre Zagreb, University Hospital Centre Zagreb , Zagreb , Croatia
| | - Mirsala Solak
- b Department of Endocrinology , University Hospital Centre Zagreb , Zagreb , Croatia
| | - Ana Vučinović
- e Department of Ophthalmology , University Hospital Centre Split , Spinciceva 1, 21000 , Split
| | - David Ozretić
- c School of Medicine , University of Zagreb , Zagreb , Croatia
- f Department of Diagnostic and Interventional Radiology , University Hospital Centre Zagreb , Kispaticeva 12, 10000 Zagreb , Croatia
| | - Sergej Mihailović Marasanov
- d Department of Neurosurgery , Gamma Knife Centre Zagreb, University Hospital Centre Zagreb , Zagreb , Croatia
| | - Hrvoje Hršak
- g Department of Medical Physics , Gamma Knife Centre Zagreb, University Hospital Centre Zagreb , Zagreb , Croatia
| | - Darko Kaštelan
- b Department of Endocrinology , University Hospital Centre Zagreb , Zagreb , Croatia
- c School of Medicine , University of Zagreb , Zagreb , Croatia
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13
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Rhome R, Germano IM, Sheu RD, Green S. Long-term outcomes of acromegaly treated with fractionated stereotactic radiation: case series and literature review. Neurooncol Pract 2017; 4:255-262. [PMID: 31385970 DOI: 10.1093/nop/npx002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Background Growth hormone (GH)-secreting pituitary adenomas represent an uncommon subset of pituitary neoplasms. Stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (FSRT) have been used as primary or adjuvant treatment. The purpose of this study is to report the long-term tumor control and toxicity from our institution and to perform a systematic literature review of acromegaly patients treated with FSRT. Methods We retrospectively reviewed all patients treated with FSRT (median dose 50.4 Gray [Gy], range 50.4-54 Gy) between 2005 and 2012 who had: 1) GH-secreting adenoma with persistently elevated insulin growth factor-1 (IGF-1) despite medical therapy and 2) clinical follow up >3 years after FSRT. Patients were treated with modern FSRT planning techniques. Biochemical control was defined as IGF-1 normalization. Systematic review of the literature was performed for FSRT in acromegaly. Results With a median follow-up of 80 months, radiographic control was achieved in all 11 patients and overall survival was 100%. Long-term biochemical control was achieved in 10 patients (90.9%) with either FSRT alone (36.4%) or FSRT with continued medical management (45.5%). No patient experienced new hypopituitarism, cranial nerve dysfunctions, or visual deficits. Our systematic review found published rates of biochemical control and hypopituitarism vary, with uniformly good radiographic control and low incidence of visual changes. Conclusions Adjuvant FSRT offered effective long-term biochemical control and radiographic control, and there was a lower rate of complications in this current series. Review of the literature shows variations in published rates of biochemical control after FSRT for acromegaly, but low incidence of serious toxicities.
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Affiliation(s)
- Ryan Rhome
- Department of Radiation Oncology (R.R., R.-D.S., S.G.) and Department of Neurosurgery (I.M.G.), Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1236, New York, NY 10029
| | - Isabelle M Germano
- Department of Radiation Oncology (R.R., R.-D.S., S.G.) and Department of Neurosurgery (I.M.G.), Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1236, New York, NY 10029
| | - Ren-Dih Sheu
- Department of Radiation Oncology (R.R., R.-D.S., S.G.) and Department of Neurosurgery (I.M.G.), Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1236, New York, NY 10029
| | - Sheryl Green
- Department of Radiation Oncology (R.R., R.-D.S., S.G.) and Department of Neurosurgery (I.M.G.), Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1236, New York, NY 10029
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14
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Briceno V, Zaidi HA, Doucette JA, Onomichi KB, Alreshidi A, Mekary RA, Smith TR. Efficacy of transsphenoidal surgery in achieving biochemical cure of growth hormone-secreting pituitary adenomas among patients with cavernous sinus invasion: a systematic review and meta-analysis. Neurol Res 2017; 39:387-398. [PMID: 28301972 DOI: 10.1080/01616412.2017.1296653] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES Growth hormone-secreting pituitary adenomas in adults can result in severe craniofacial disfigurement and potentially fatal medical complications. Surgical resection leading to remission of the disease is dependent on complete surgical resection of the tumor. Lesions that invade the cavernous sinus may not be safely accessible via an endonasal transsphenoidal surgery (TSS), and the rates of biochemical remission of patients with residual disease vary widely in the literature. We conducted a meta-analysis to examine the prevalence of biochemical remission after TSS among patients with growth hormone-secreting pituitary adenomas with and without cavernous sinus invasion. METHODS Embase, PubMed, and Cochrane Library databases were searched for relevant publications. Fourteen studies with 972 patients with biochemically confirmed growth hormone-secreting pituitary adenomas were included in the meta-analysis. RESULTS The overall remission prevalence under a fixed-effect model was 47.6% (95% CI = 40.8-54.4%) for patients with invasive macroadenomas (I2 = 74.6%, p < 0.01); 76.4% (95% CI = 72.2-80.1%) for patients with non-invasive macroadenomas (I2 = 59.6%, p = 0.03); and 74.2% (95% CI = 66.3-80.7%) for patients with non-invasive microadenomas (I2 = 36.4, p = 0.10). The significant difference among the three groups resulted from the difference between patients with or without cavernous sinus invasion (p = 0.01) and not from the size of adenomas among those without cavernous sinus invasion (p = 0.66). DISCUSSION The prevalence of biochemical remission in patients with cavernous sinus invasion was lower than in patients without cavernous sinus invasion after TSS for acromegaly.
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Affiliation(s)
- Vanessa Briceno
- a Department of Pharmaceutical Business and Administrative Sciences , MCPHS University , Boston , MA , USA
| | - Hasan A Zaidi
- b Department of Neurosurgery , Cushing Neurosurgery Outcomes Center, Brigham and Women's Hospital, Harvard Medical School , Boston , MA , USA.,c Department of Neurosurgery , Barrow Neurological Institute, St. Joseph's Hospital and Medical Center , Phoenix , AZ , USA
| | - Joanne A Doucette
- a Department of Pharmaceutical Business and Administrative Sciences , MCPHS University , Boston , MA , USA
| | - Kaho B Onomichi
- a Department of Pharmaceutical Business and Administrative Sciences , MCPHS University , Boston , MA , USA
| | - Amer Alreshidi
- a Department of Pharmaceutical Business and Administrative Sciences , MCPHS University , Boston , MA , USA
| | - Rania A Mekary
- a Department of Pharmaceutical Business and Administrative Sciences , MCPHS University , Boston , MA , USA.,b Department of Neurosurgery , Cushing Neurosurgery Outcomes Center, Brigham and Women's Hospital, Harvard Medical School , Boston , MA , USA
| | - Timothy R Smith
- a Department of Pharmaceutical Business and Administrative Sciences , MCPHS University , Boston , MA , USA.,b Department of Neurosurgery , Cushing Neurosurgery Outcomes Center, Brigham and Women's Hospital, Harvard Medical School , Boston , MA , USA
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Abstract
Purpose Treatment of acromegaly has undergone important progress in the last 20 years mainly due to the development of new medical options and advances in surgical techniques. Pituitary surgery is usually first-line therapy, and medical treatment is indicated for persistent disease, while radiation (RT) is often used as third-line therapy. The benefits of RT (tumor volume control and decreased hormonal secretion) are hampered by the long latency of the effect and the high risk of adverse effects. Stereotactic RT methods have been developed with the aim to provide more precise targeting of the tumor with better control of the radiation dose received by the adjacent brain structures. The purpose of this review is to present the updates in the efficacy and safety of pituitary RT in acromegalic patients, with an emphasis on the new stereotactic radiation techniques. Methods A systematic review was performed using PubMed and articles/abstracts and reviews detailing RT in acromegaly from 2000 to 2016 were included. Results Stereotactic radiosurgery and fractionated stereotactic RT (FSRT) for patients with persistent active acromegaly after surgery and/or during medical therapy provide comparable high rates of tumor control, i.e. stable or decrease in size of the tumor in 93-100% of patients at 5-10 years and endocrinological remission in 40-60% of patients at 5 years. Hypofractionated RT is an optimal option for tumors located near the optic structures, due to its lower toxicity for the optic nerves compared to single-dose radiosurgery. The rate of new hypopituitarism varies from 10 to 50% at 5 years and increases with the duration of follow-up. The risk for other radiation-induced complications is usually low (0-5% for new visual deficits, cranial nerves damage or brain radionecrosis and 0-1% for secondary brain tumors) and risk of stroke may be higher in FSRT. Conclusion Although the use of radiotherapy in patients with acromegaly has decreased with advances in medical treatments, it remains an effective treatment option after unsuccessful surgery and/or resistance or unavailability of medical therapy. Long-term studies evaluating secondary morbidity and mortality rate after the new stereotactic techniques are needed, in order to evaluate their potential brain-sparing effect.
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Affiliation(s)
- Monica Livia Gheorghiu
- C.I. Parhon" National Institute of Endocrinology, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.
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16
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Gheorghiu ML, Fleseriu M. STEREOTACTIC RADIATION THERAPY IN PITUITARY ADENOMAS, IS IT BETTER THAN CONVENTIONAL RADIATION THERAPY? ACTA ENDOCRINOLOGICA-BUCHAREST 2017; 13:476-490. [PMID: 31149219 DOI: 10.4183/aeb.2017.476] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Pituitary radiotherapy (RT) has undergone important progress in the last decades due to the development of new stereotactic techniques which provide more precise tumour targeting with less overall radiation received by the adjacent brain structures. Pituitary surgery is usually first-line therapy in most patients with nonfunctioning (NFPA) and functioning adenomas (except for prolactinomas and large growth hormone (GH) secreting adenomas), while RT is used as second or third-line therapy. The benefits of RT (tumour volume control and, in functional tumours, decreased hormonal secretion) are hampered by the long latency of the effect and the potential side effects. This review presents the updates in the efficacy and safety of the new stereotactic radiation techniques in patients with NFPA, GH-, ACTH- or PRL-secreting pituitary adenomas. Methods A systematic review was performed using PubMed and articles/abstracts and reviews detailing RT in pituitary adenomas from 2000 to 2017 were included. Results Stereotactic radiosurgery (SRS) and fractionated stereotactic RT (FSRT) provide high rates of tumour control i.e. stable or decrease in tumour size, in all types of pituitary adenomas (median 92 - 98%) at 5 years. Endocrinological remission is however significantly lower: 44-52% in acromegaly, 54-64% in Cushing's disease and around 30% in prolactinomas at 5 years. The rate of new hypopituitarism varies from 10% to 50% at 5 years in all tumour types and as expected increases with the duration of follow-up (FU). The risk for other radiation-induced complications is usually low (0-5% for new visual deficits, cranial nerves damage or brain radionecrosis and extremely low for secondary brain tumours), however longer FU is needed to determine rates of secondary tumours. Notably, in acromegaly, there may be a higher risk for stroke with FSRT. Conclusion Stereotactic radiotherapy can be an effective treatment option for patients with persistent or recurrent pituitary adenomas after unsuccessful surgery (especially if residual tumour is enlarging) and/or resistance or unavailability of medical therapy. Comparison with conventional radiation therapy (CRT) is rather difficult, due to the substantial heterogeneity of the studies. In order to evaluate the potential brain-sparing effect of the new stereotactic techniques, suggested by the current data, long-term studies evaluating secondary morbidity and mortality are needed.
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Affiliation(s)
- M L Gheorghiu
- "Carol Davila" University of Medicine and Pharmacy, "C.I. Parhon" National Institute of Endocrinology, Bucharest, Romania
| | - M Fleseriu
- Oregon Health & Science University, Departments of Medicine (Endocrinology) and Neurological Surgery, and Northwest Pituitary Center, Portland, USA
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17
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Safety and efficacy of fractionated stereotactic radiotherapy and stereotactic radiosurgery for treatment of pituitary adenomas: A systematic review and meta-analysis. J Neurol Sci 2016; 372:110-116. [PMID: 28017195 DOI: 10.1016/j.jns.2016.11.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 11/11/2016] [Accepted: 11/13/2016] [Indexed: 01/11/2023]
Abstract
Accumulated studies have not provided conclusive evidence in regards to the comparative efficacy and safety of fractionated stereotactic radiotherapy and stereotactic radiosurgery for treatment of pituitary adenomas. To address this issue, we performed a meta-analysis with eight studies identified from Medline, PubMed, Cochrane, Google Scholar, and published up to September 17, 2015. Eligible studies reported the disease control rate, endocrine cure rate (for functional adenomas), the rate of occurrence of new-onset hypopituitarism, and visual disturbance rate in patients treated with either stereotactic radiosurgery or fractionated stereotactic radiotherapy. Eight studies enrolled a total of 634 patients with pituitary adenoma, 273 patients underwent a stereotactic radiosurgery and 361 patients underwent fractionated stereotactic radiotherapy. No significant differences were found in efficacy measures, such as disease control rate and endocrine cure rate, between stereotactic radiosurgery and fractionated stereotactic radiotherapy (OR=1.156, p=0.666; OR=0.659, p=0.153, respectively). Additionally, meta-analysis of safety measures, such as the rate of new-onset hypopituitarism and visual disturbance rate, did not show significant differences between different treatments (OR=1.365, p=0.469; OR=0.872, p=0.845 respectively). In conclusion, both stereotactic radiosurgery and fractionated stereotactic radiotherapy have comparable efficacy and safety in the management of pituitary adenoma patients.
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18
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Minniti G, Osti MF, Niyazi M. Target delineation and optimal radiosurgical dose for pituitary tumors. Radiat Oncol 2016; 11:135. [PMID: 27729088 PMCID: PMC5057503 DOI: 10.1186/s13014-016-0710-y] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 10/01/2016] [Indexed: 11/10/2022] Open
Abstract
Stereotactic radiosurgery (SRS) delivered as either single-fraction or multi-fraction SRS (2–5 fractions) is frequently employed in patients with residual or recurrent pituitary adenoma. The most common delivery systems used for SRS include the cobalt-60 system Gamma Knife, the CyberKnife (CK) robotic radiosurgery system, or a modified conventional radiotherapy machine (linear accelerator, LINAC). Tumor control and normalization of hormone hypersecretion have been reported in 75–100 % and 25–80 % of patients, respectively. Hypopituitarism is the most commonly reported late complication of radiation treatment, whereas other toxicities occur less frequently. We have provided an overview of the recent available literature on SRS in patients with a pituitary adenoma. Critical aspects of pituitary irradiation, including target delineation and doses to organs at risk, optimal radiation dose, as well as the long-term efficacy and toxicity of SRS for either nonfunctioning or secreting pituitary adenomas are discussed. Single-fraction SRS represents an effective treatment for patients with a pituitary adenoma; however, caution should be used for lesions > 2.5–3 cm in size and/or involving the anterior optic pathway. Future studies will be necessary to optimize target doses and critical organ dose constrains in order to reduce the long-term toxicity of treatments while maintaining high efficacy.
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Affiliation(s)
- Giuseppe Minniti
- Unit of Radiation Oncology, Sant' Andrea Hospital, University Sapienza, Rome, Italy. .,IRCCS Neuromed, Pozzilli (IS), Italy.
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Bacigaluppi S, Gatto F, Anania P, Bragazzi NL, Rossi DC, Benvegnu G, Nazzari E, Spaziante R, Giusti M, Ferone D, Zona G. Impact of pre-treatment with somatostatin analogs on surgical management of acromegalic patients referred to a single center. Endocrine 2016; 51:524-33. [PMID: 25982150 DOI: 10.1007/s12020-015-0619-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 04/27/2015] [Indexed: 11/28/2022]
Abstract
First-line treatment of patients with growth hormone secreting adenomas is surgical resection. Disease control can be obtained by surgery (one or multiple steps), in case followed by medical treatment or adjuvant radiation therapy (radiosurgery or radiotherapy). The impact of pre-surgical treatment with somatostatin analogs (SSAs) on surgical outcome is still controversial. The aim of this study is to retrospectively evaluate the impact of SSA pre-treatment on biochemical outcome and post-surgical hypopituitarism in a consecutive surgical series from a single referral centre, with data covering 17 years' experience and to investigate the possible predictive value of early postoperative insulin-like factor 1 (IGF-I) on long-term biochemical control. Data from 68 acromegalic patients were revised. Endocrinological long-term follow-up (minimum 6 months) was available for 57 patients. Eighty-eight percent of patients received a single-step surgical treatment (single surgery, with or without adjuvant medical therapy). The remaining 12% underwent a multi-step strategy: redo-surgery (three macroadenomas) and/or radiation (four macro- and two microadenomas). Pre-surgical SSA treatment was performed in 77.9% and resulted in a significant lowering of basal IGF-I values (p = 0.0001). Early post-surgical IGF-I was significantly lower in patients biochemically controlled with single surgery alone (p = 0.016) and after overall treatment strategies (p = 0.005). Normalization of GH and IGF-I was obtained in 56.1%, and normalization of either one of them in 27.8% of patients. No major surgery-related complications occurred. Post-treatment hypopituitarism occurred in 11.9% and was lower in SSA pre-treated patients. Our results well compare with other recently published series. Very early post-surgical IGF-I improvement might be a useful predictor for biochemical disease control. Moreover, our results suggest that pre-surgical treatment with somatostatin analogs seems to prevent hypopituitarism.
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Affiliation(s)
- Susanna Bacigaluppi
- Neurosurgery, Department of Neurosciences (DINOGMI), IRCCS San Martino-IST, University of Genoa, Largo Rosanna Benzi 10, 16132, Genova, Italy
- Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genova, Italy
| | - Federico Gatto
- Endocrinology, Department of Internal Medicine and Medical Specialties (DIMI), IRCCS San Martino-IST, University of Genoa, Genova, Italy
- Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genova, Italy
| | - Pasquale Anania
- Neurosurgery, Department of Neurosciences (DINOGMI), IRCCS San Martino-IST, University of Genoa, Largo Rosanna Benzi 10, 16132, Genova, Italy
| | - Nicola Luigi Bragazzi
- School of Public Health, Department of Health Sciences (DISSAL), University of Genoa, Genova, Italy
| | - Diego Criminelli Rossi
- Neurosurgery, Department of Neurosciences (DINOGMI), IRCCS San Martino-IST, University of Genoa, Largo Rosanna Benzi 10, 16132, Genova, Italy
| | - Giulia Benvegnu
- Anaesthesiology, Department of Emergency (DEA), IRCCS San Martino-IST, Genova, Italy
| | - Elena Nazzari
- Endocrinology, Department of Internal Medicine and Medical Specialties (DIMI), IRCCS San Martino-IST, University of Genoa, Genova, Italy
| | - Renato Spaziante
- Department of Neurosurgery, University of Salerno, Salerno, Italy
| | - Massimo Giusti
- Endocrinology, Department of Internal Medicine and Medical Specialties (DIMI), IRCCS San Martino-IST, University of Genoa, Genova, Italy
- Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genova, Italy
| | - Diego Ferone
- Endocrinology, Department of Internal Medicine and Medical Specialties (DIMI), IRCCS San Martino-IST, University of Genoa, Genova, Italy
- Centre of Excellence for Biomedical Research (CEBR), University of Genoa, Genova, Italy
| | - Gianluigi Zona
- Neurosurgery, Department of Neurosciences (DINOGMI), IRCCS San Martino-IST, University of Genoa, Largo Rosanna Benzi 10, 16132, Genova, Italy.
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Abstract
Acromegaly (ACM) is a chronic, progressive disorder caused by the persistent hypersecretion of GH, in the vast majority of cases secreted by a pituitary adenoma. The consequent increase in IGF1 (a GH-induced liver protein) is responsible for most clinical features and for the systemic complications associated with increased mortality. The clinical diagnosis, based on symptoms related to GH excess or the presence of a pituitary mass, is often delayed many years because of the slow progression of the disease. Initial testing relies on measuring the serum IGF1 concentration. The oral glucose tolerance test with concomitant GH measurement is the gold-standard diagnostic test. The therapeutic options for ACM are surgery, medical treatment, and radiotherapy (RT). The outcome of surgery is very good for microadenomas (80-90% cure rate), but at least half of the macroadenomas (most frequently encountered in ACM patients) are not cured surgically. Somatostatin analogs are mainly indicated after surgical failure. Currently their routine use as primary therapy is not recommended. Dopamine agonists are useful in a minority of cases. Pegvisomant is indicated for patients refractory to surgery and other medical treatments. RT is employed sparingly, in cases of persistent disease activity despite other treatments, due to its long-term side effects. With complex, combined treatment, at least three-quarters of the cases are controlled according to current criteria. With proper control of the disease, the specific complications are partially improved and the mortality rate is close to that of the background population.
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Affiliation(s)
- Cristina Capatina
- Department of EndocrinologyCarol Davila University of Medicine and Pharmacy, Bucharest, RomaniaCI Parhon National Institute of EndocrinologyBucharest, RomaniaDepartment of EndocrinologyOxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, UK Department of EndocrinologyCarol Davila University of Medicine and Pharmacy, Bucharest, RomaniaCI Parhon National Institute of EndocrinologyBucharest, RomaniaDepartment of EndocrinologyOxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, UK
| | - John A H Wass
- Department of EndocrinologyCarol Davila University of Medicine and Pharmacy, Bucharest, RomaniaCI Parhon National Institute of EndocrinologyBucharest, RomaniaDepartment of EndocrinologyOxford Centre for Diabetes, Endocrinology and Metabolism, Churchill Hospital, Old Road, Headington, Oxford OX3 7LE, UK
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Boström JP, Kinfe T, Meyer A, Pintea B, Gerlach R, Surber G, Lammering G, Hamm K. Treatment of acromegaly patients with risk-adapted single or fractionated stereotactic high-precision radiotherapy: High local control and low toxicity in a pooled series. Strahlenther Onkol 2015; 191:477-85. [PMID: 25575977 DOI: 10.1007/s00066-014-0802-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Accepted: 12/18/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE The purpose of this work was to evaluate a prospectively initiated two-center protocol of risk-adapted stereotactic radiosurgery (SRS) or stereotactic radiotherapy (SRT) in patients with acromegaly. PATIENTS AND METHODS In total 35 patients (16 men/19 women, mean age 54 years) were prospectively included in a treatment protocol of SRS [planning target volume (PTV < 4 ccm, > 2 mm to optic pathways = low risk] or SRT (PTV ≥ 4 ccm, ≤ 2 mm to optic pathways = high risk). The mean tumor volume was 3.71 ccm (range: 0.11-22.10 ccm). Based on the protocol guidelines, 21 patients were treated with SRS and 12 patients with SRT, 2 patients received both consecutively. RESULTS The median follow-up (FU) reached 8 years with a 5-year overall survival (OS) of 87.3% [confidence interval (CI): 70.8-95.6%] and 5-year local control rate of 97.1% (CI: 83.4-99.8%). Almost 80% (28/35) presented tumor shrinkage during FU. Endocrinological cure was achieved in 23% and IGF-1 normalization with reduced medication was achieved in 40% of all patients. An endocrinological response was generally achieved within the first 3 years, but endocrinological cure can require more than 8 years. A new adrenocorticotropic hypopituitarism occurred in 13 patients (46.4%). A new visual field disorder and a new oculomotor palsy occurred in 1 patient, respectively. Patients with occurrence of visual/neurological impairments had a longer FU (p = 0.049). CONCLUSION Our SRS/SRT protocol proved to be safe and successful in terms of tumor control and protection of the visual system. The timing and rate of endocrine improvements are difficult to predict. One has to accept an unavoidable rate of additional adrenocorticotropic hypopituitarism in the long term.
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Affiliation(s)
- Jan Patrick Boström
- Department of Radiosurgery and Stereotactic Radiotherapy, Mediclin Robert Janker Clinic and MediClin MVZ Bonn, Villenstrasse 8, 53129, Bonn, Germany,
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Minniti G, Clarke E, Scaringi C, Enrici RM. Stereotactic radiotherapy and radiosurgery for non-functioning and secreting pituitary adenomas. Rep Pract Oncol Radiother 2014; 21:370-8. [PMID: 27330422 DOI: 10.1016/j.rpor.2014.09.004] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 07/28/2014] [Accepted: 09/16/2014] [Indexed: 11/18/2022] Open
Abstract
Radiotherapy (RT) is frequently employed in patients with residual or recurrent pituitary adenoma with excellent rates of tumor control and remission of hormonal hypersecretion. Advances in RT have improved with the use of stereotactic techniques either as fractionated stereotactic radiotherapy (FSRT) or stereotactic radiosurgery (SRS), all aiming to improve the dose distribution to the tumor while reducing the amount of normal brain receiving significant doses of radiation. We provide an overview of the recent published literature on the long-term efficacy and adverse effects of stereotactic irradiation in nonfunctioning and secreting pituitary adenomas. Both techniques are associated with excellent clinical outcomes; however, advantages and drawbacks of each of these techniques in terms of local control, hormonal excess normalization, and radiation-induced toxicity remain a matter of debate. In clinical practice, single-fraction SRS may represent a convenient approach to patients with small and medium-sized pituitary adenoma away at least 2 mm from the optic chiasm, whereas FSRT is preferred over SRS for lesions >2.5-3 cm in size and/or involving the anterior optic pathway.
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Affiliation(s)
- Giuseppe Minniti
- Department of Radiation Oncology, Sant' Andrea Hospital, University of Rome Sapienza, Rome, Italy; IRCCS Neuromed, Pozzilli, IS, Italy
| | - Enrico Clarke
- Department of Radiation Oncology, Sant' Andrea Hospital, University of Rome Sapienza, Rome, Italy
| | - Claudia Scaringi
- Department of Radiation Oncology, Sant' Andrea Hospital, University of Rome Sapienza, Rome, Italy
| | - Riccardo Maurizi Enrici
- Department of Radiation Oncology, Sant' Andrea Hospital, University of Rome Sapienza, Rome, Italy
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Sarkar S, Rajaratnam S, Chacko G, Chacko AG. Endocrinological outcomes following endoscopic and microscopic transsphenoidal surgery in 113 patients with acromegaly. Clin Neurol Neurosurg 2014; 126:190-5. [PMID: 25278017 DOI: 10.1016/j.clineuro.2014.09.004] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 09/09/2014] [Accepted: 09/13/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND To describe outcomes and complications in patients undergoing transsphenoidal surgery for acromegaly using the 2010 consensus criteria for biochemical remission. METHODS Retrospective review of 113 treatment naïve patients who underwent transsphenoidal surgery with the endoscopic (n=66) and the endonasal microscopic technique (n=47). Cure was defined if the age and sex-adjusted IGF-1 level was normal and either the basal GH was <1 ng/ml or the nadir GH was <0.4 ng/ml following oral glucose suppression at last follow-up. RESULTS The mean age at presentation was 38.1 ± 7.1 years and 86% of tumors were macroadenomas. Adenoma sizes averaged 21.1 ± 9.7 mm, but 56% of all tumors were ≥ 2 cm in size and 43.4% were invasive. Remission rates between endoscopic and microscopic transsphenoidal surgery did not differ significantly overall (28.8% versus 36.2%). On univariate analysis, a preoperative GH level <40 ng/ml, adenoma size <20mm and non-invasiveness were predictors of remission at follow-up. Although there were no statistically significant differences in remission rates between the endoscopic and microsurgical groups, surgically induced hypopituitarism was less frequent with the former. CONCLUSIONS We report our surgical experience with predominantly large, invasive GH adenomas using the 2010 criteria for cure. Patients with smaller, non-invasive tumors with lower preoperative GH levels are most likely to achieve remission. Outcomes with either the microscopic or endoscopic approach do not differ significantly, although the rate of surgically induced hypopituitarism may be higher with the former. Transsphenoidal surgery remains the first line of treatment for patients with acromegaly, but invasive adenomas will frequently require adjuvant therapy.
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Affiliation(s)
- Sauradeep Sarkar
- Section of Neurosurgery, Department of Neurological Sciences, Christian Medical College, Vellore, India
| | - Simon Rajaratnam
- Department of Endocrinology, Diabetes and Metabolism, Christian Medical College, Vellore, India
| | - Geeta Chacko
- Section of Neurosurgery, Department of Neurological Sciences, Christian Medical College, Vellore, India
| | - Ari George Chacko
- Section of Neurosurgery, Department of Neurological Sciences, Christian Medical College, Vellore, India.
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Unyielding progress: recent advances in the treatment of central nervous system neoplasms with radiosurgery and radiation therapy. J Neurooncol 2014; 119:513-29. [PMID: 25119001 DOI: 10.1007/s11060-014-1501-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 06/06/2014] [Indexed: 10/24/2022]
Abstract
In the past decade, our understanding of the roles of external beam radiotherapy (EBRT) and stereotactic radiosurgery (SRS) in the management of brain tumors has dramatically improved. To highlight the changes and contemporary treatment approaches, we review the indications and outcomes of ionizing radiation for benign intracranial tumors and brain metastases. For nonfunctioning pituitary adenomas, SRS is able to achieve radiographic tumor control in at least 90 % of cases. The rate of SRS-induced endocrine remission for functioning pituitary adenomas depends on the tumor subtype, but it is generally lower than the rate of radiographic tumor control. The most common complications from pituitary adenoma SRS treatment are hypopituitarism and cranial neuropathies. SRS has become the preferred treatment modality for vestibular schwannomas and skull base meningiomas less than 3 cm in size. Large vestibular schwannomas and meningiomas remain best managed with initial surgical resection or EBRT for surgically ineligible patients. For small to moderately sized brain metastases, there has been a shift toward treatment of newly diagnosed patients with SRS alone due to similar local control rates compared with surgical resection. RCTs have shown combined SRS and whole brain radiation therapy (WBRT) for brain metastases to decrease rates of local and distant intracranial recurrence compared to SRS alone. However, the improved intracranial control comes at the expense of poorer neurocognitive outcomes and without prolonging overall survival. Therefore, WBRT is generally reserved for salvage therapy. While EBRT has been frequently supplanted by SRS for the treatment pituitary adenomas and brain metastases, it still proves useful in selected cases of large lesions which are not amenable to surgical debulking or for those with widespread disease, poor performance status, and short life expectancy. In recent years, the scope of SRS has extended beyond the intracranial space to include extradural and intradural spinal tumors.
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