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Shaaban A, Pham D, Tos SM, Mantziaris G, Schlesinger D, Sheehan JP. Biological effective dose as a predictor of local tumor control in stereotactic radiosurgery treated parasellar meningioma patients. J Neurooncol 2024:10.1007/s11060-024-04804-1. [PMID: 39190046 DOI: 10.1007/s11060-024-04804-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 08/11/2024] [Indexed: 08/28/2024]
Abstract
INTRODUCTION The radio-surgical literature increasingly uses biological effective dose (BED) as a replacement for absorbed dose to analyze outcome of stereotactic radiosurgery (SRS). There are as yet no studies which specifically investigate the association of BED to local tumor control in para-sellar meningioma. METHODS we did a retrospective analysis of patients underwent stereotactic radiosurgery (SRS) for para-sellar meningioma during the period of 1995-2022. Demographic, clinical, SRS parameters, and outcome data were collected. The target margin BED with and without a model for sub-lethal repair was calculated, as well as a ratio of BED at the target margin to the absorbed dose at the target margin. Factors related to local control were further analyzed. RESULTS The study was comprised of 91 patients, 20 (22.0%) and 71 (78.0%) of whom were male and female, respectively. The median age was 55.0 (interquartile range Q1, Q3:47.5,65.5years). 34 (37%) patients had a resection of their meningioma prior to SRS. The median interval from SRS to last clinical follow up or progression was 89 months. 13 (14.3%) patients were found to have progression. 3-, 5- and 10-years local tumor control were 98%, 92% and 77%, respectively. In cox univariate analysis, the following factors were significant: Number of prior surgical resections (Hazard Ratio [HR] = 1.82, 95% CI = 1.08-3.05, p = 0.024), BED (HR = 0.96, 95% CI = 0.92-1.00, p = 0.03), and BED/margin (HR = 0.44, 95% CI = 0.21-0.92, p = 0.028). A BED threshold above 68 Gy was associated significantly with tumor control (P = 0.04). CONCLUSION BED and BED /margin absorbed dose ratio can be predictors of local control after SRS in parasellar meningioma. Optimizing the BED above 68Gy2.47 may afford better long-term tumor control.
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Affiliation(s)
- Ahmed Shaaban
- Department of Neurological Surgery, University of Virginia, Box 800212, Charlottesville, VA, 22908, USA
| | - Duy Pham
- Department of Neurological Surgery, University of Virginia, Box 800212, Charlottesville, VA, 22908, USA
| | - Salem M Tos
- Department of Neurological Surgery, University of Virginia, Box 800212, Charlottesville, VA, 22908, USA
| | - Georgios Mantziaris
- Department of Neurological Surgery, University of Virginia, Box 800212, Charlottesville, VA, 22908, USA
| | - David Schlesinger
- Department of Neurological Surgery, University of Virginia, Box 800212, Charlottesville, VA, 22908, USA
| | - Jason P Sheehan
- Department of Neurological Surgery, University of Virginia, Box 800212, Charlottesville, VA, 22908, USA.
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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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Zubatkina I, Toma-Dasu I, Dasu A, Levivier M, Tuleasca C, Ivanov P. Clinically Driven Alpha/Beta Ratios for Melanoma Brain Metastases and Investigation of Biologically Effective Dose as a Predictor for Local Control After Radiosurgery: A Proof of Concept in a Retrospective Longitudinal Series of 274 Consecutive Lesions. Neurosurgery 2024; 94:423-430. [PMID: 37665222 DOI: 10.1227/neu.0000000000002639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 06/14/2023] [Indexed: 09/05/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Brain metastases (BM) develop in nearly half of the patients with advanced melanoma. The aim of this retrospective historical cohort study was to analyze radiological response of melanoma BM to single-fraction Gamma Knife radiosurgery (GKRS), in relation to biologically effective dose (BED) for various alpha/beta ratios. METHODS Included in the study were 274 lesions. Primary outcome was local control (LC). Mean marginal dose was 21.6 Gy (median 22, range 15-25). Biologically effective dose was calculated for an alpha/beta ratio of 3 (Gy 3 ), 5 (Gy 10 ), 10 (Gy 10 ), and 15 (Gy 15 ). RESULTS Receiver operating characteristic value for LC and BED was 85% (most statistically significant odds ratio 1.14 for BED Gy 15 , P = .006), while for LC and physical dose was 79% ( P = .02). When comparing equality of 2 receiver operating characteristic areas, this was statistically significant ( P = .02 and .03). Fractional polynomial regression revealed BED (Gy 10 and Gy 15 ) as statistically significant ( P = .05) with BED of more than 63 Gy 10 or 49 Gy 15 as relevant, also for higher probability of quick decrease in volume first month after GKRS and lower probability of radiation necrosis. Shorter irradiation time was associated with better LC ( P = .001), particularly less than 40 minutes (LC below 90%, P = .05). CONCLUSION BED Gy 10 and particularly Gy 15 were more statistically significant than physical dose for LC after GKRS for radioresistant melanoma BM. Irradiation time (per lesion) longer than 40 minutes was predictive for lower rates of LC. Such results need to be validated in larger cohorts.
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Affiliation(s)
- Irina Zubatkina
- Department of Radiosurgery, Stereotactic Radiotherapy and General Oncology Clinic MIBS, Saint Petersburg , Russia
- Peter the Great St. Petersburg Polytechnic University, Saint Petersburg , Russia
| | - Iuliana Toma-Dasu
- Oncology Pathology Department, Karolinska Institutet, Stockholm , Sweden
- Medical Radiation Physics, Stockholm University, Stockholm , Sweden
| | - Alexandru Dasu
- Medical Radiation Sciences, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala , Sweden
| | - Marc Levivier
- Department of Clinical Neurosciences, Neurosurgery Service and Gamma Knife Center, Centre Hospitalier Universitaire Vaudois, Lausanne , Switzerland
- University of Lausanne (UNIL), Faculty of Biology and Medicine (FBM), Lausanne , Switzerland
| | - Constantin Tuleasca
- Department of Clinical Neurosciences, Neurosurgery Service and Gamma Knife Center, Centre Hospitalier Universitaire Vaudois, Lausanne , Switzerland
- University of Lausanne (UNIL), Faculty of Biology and Medicine (FBM), Lausanne , Switzerland
- Signal Processing Laboratory (LTS 5), Ecole Polytechnique Fédérale de Lausanne, Lausanne , Switzerland
| | - Pavel Ivanov
- Department of Radiosurgery, Stereotactic Radiotherapy and General Oncology Clinic MIBS, Saint Petersburg , Russia
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Tuleasca C, Toma-Dasu I, Duroux S, George M, Maire R, Daniel RT, Patin D, Schiappacasse L, Dasu A, Faouzi M, Levivier M. Impact of the Mean Cochlear Biologically Effective Dose on Hearing Preservation After Stereotactic Radiosurgery for Vestibular Schwannoma: A Retrospective Longitudinal Analysis. Neurosurgery 2024; 94:174-182. [PMID: 37431994 PMCID: PMC10695539 DOI: 10.1227/neu.0000000000002609] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 05/19/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Stereotactic radiosurgery (SRS) is a useful alternative for small- to medium-sized vestibular schwannoma. To evaluate whether biologically effective dose (BED Gy2.47 ), calculated for mean (BED Gy2.47 mean) and maximal (BED Gy2.47 max) cochlear dose, is relevant for hearing preservation. METHODS This is a retrospective longitudinal single-center study. Were analyzed 213 patients with useful baseline hearing. Risk of hearing decline was assessed for Gardner-Robertson classes and pure tone average (PTA) loss. The mean follow-up period was 39 months (median 36, 6-84). RESULTS Hearing decline (Gardner-Robertson class) 3 years after SRS was associated with higher cochlear BED Gy2.47 mean (odds ratio [OR] 1.39, P = .009). Moreover, BED Gy2.47 mean was more relevant as compared with BED Gy2.47 max (OR 1.13, P = .04). Risk of PTA loss (continuous outcome, follow-up minus baseline) was significantly corelated with BED Gy2.47 mean at 24 (beta coefficient 1.55, P = .002) and 36 (beta coefficient 2.01, P = .004) months after SRS. Risk of PTA loss (>20 dB vs ≤) was associated with higher BED Gy2.47 mean at 6 (OR 1.36, P = .002), 12 (OR 1.36, P = .007), and 36 (OR 1.37, P = .02) months. Risk of hearing decline at 36 months for the BED Gy2.47 mean of 7-8, 10, and 12 Gy 2.47 was 28%, 57%, and 85%, respectively. CONCLUSION Cochlear BED Gy2.47 mean is relevant for hearing decline after SRS and more relevant as compared with BED Gy2.47 max. Three years after SRS, this was sustained for all hearing decline evaluation modalities. Our data suggest the BED Gy2.47 mean cut-off of ≤8 Gy 2.47 for better hearing preservation rates .
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Affiliation(s)
- Constantin Tuleasca
- Lausanne University Hospital (CHUV), Neurosurgery Service and Gamma Knife Center, Lausanne, Switzerland
- University of Lausanne (UNIL), Faculty of Biology and Medicine (FBM), Lausanne, Switzerland
- Ecole Polytechnique Fédérale de Lausanne (EPFL, LTS-5), Lausanne, Switzerland
| | - Iuliana Toma-Dasu
- Oncology Pathology Department, Karolinska Institutet, Stockholm, Sweden
- Medical Radiation Physics, Stockholm University, Stockholm, Sweden
| | - Sebastien Duroux
- University of Lausanne (UNIL), Faculty of Biology and Medicine (FBM), Lausanne, Switzerland
| | - Mercy George
- ENT Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Raphael Maire
- ENT Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Roy Thomas Daniel
- Lausanne University Hospital (CHUV), Neurosurgery Service and Gamma Knife Center, Lausanne, Switzerland
- University of Lausanne (UNIL), Faculty of Biology and Medicine (FBM), Lausanne, Switzerland
| | - David Patin
- Institute of Radiation Physics, Lausanne, Switzerland
| | - Luis Schiappacasse
- Radiation Oncology Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Alexandru Dasu
- The Skandion Clinic, Uppsala, Sweden
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Mohamed Faouzi
- Division of Biostatistics, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Marc Levivier
- Lausanne University Hospital (CHUV), Neurosurgery Service and Gamma Knife Center, Lausanne, Switzerland
- University of Lausanne (UNIL), Faculty of Biology and Medicine (FBM), Lausanne, Switzerland
- Ecole Polytechnique Fédérale de Lausanne (EPFL, LTS-5), Lausanne, Switzerland
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Meral R, Selcukbiricik OS, Uzum AK, Sahin S, Okutan M, Barburoglu M, Dolas I, Altun M, Yarman S, Kadıoglu P. Promising Outcomes in Acromegaly Patients Receiving CyberKnife Stereotactic Hypofractionated Radiotherapy. Cureus 2023; 15:e47936. [PMID: 37908695 PMCID: PMC10613787 DOI: 10.7759/cureus.47936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2023] [Indexed: 11/02/2023] Open
Abstract
BACKGROUND The primary treatment for patients with acromegaly has traditionally been transsphenoidal surgery, with decreasing reliance on radiotherapy (RT) due to advancements in pharmacotherapy (PT). Despite these advancements, a substantial portion of patients still face persistent acromegaly, necessitating novel treatment approaches. This study investigates the role of CyberKnife Stereotactic Hypofractionated Radiotherapy (CK-HFRT) in persistent acromegaly. OBJECTIVE The primary objective was to assess the impact of CK-HFRT on endocrine remission (ER) rates while maintaining acceptable toxicity levels. METHODS The study retrospectively analyzed 31 consecutive patients with acromegaly who received CK-HFRT following multiple unsuccessful surgeries and prolonged PT without ER. Various CK-HFRT dose fractionation regimes were administered, and dose volume histograms were evaluated. Tumor control, cured disease (CD), endocrine remission (ER) rates, and overall survival were estimated at a median follow-up of 62 months. Acute and late toxicity, including pituitary insufficiency and radiation-induced optic neuropathy (RION), were also assessed. RESULTS At 62 months of follow-up, the study group demonstrated excellent tumor control with 100% nonprogressive adenomas. Endocrine remission was achieved in 86.7% of patients, with a 22.4% CD rate at five years. Pituitary insufficiency occurred in 32.3% of patients, and no cases of RION were reported. The study observed three deaths related to cardiovascular diseases, all in patients receiving PT. Overall survival at five years was 79.2%. CONCLUSION CyberKnife stereotactic hypofractionated radiotherapy, as an adjunct to PT, provides a viable treatment option for patients with persistent acromegaly following unsuccessful surgeries. The therapy results in substantial ER rates and tumor control while minimizing the risk of permanent radiation-induced optic neuropathy. However, the decision to administer CK-HFRT should be individualized, considering the patient's overall condition and treatment history.
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Affiliation(s)
- Rasim Meral
- Department of Clinical Oncology, Istanbul University Institute of Oncology, Istanbul, TUR
- Department of Radiation Oncology, Istanbul University School of Medicine, Istanbul, TUR
| | | | - Ayse K Uzum
- Department of Endocrinology, Istanbul University School of Medicine, Istanbul, TUR
| | - Serdar Sahin
- Department of Endocrinology, Istanbul University - Cerrahpasa School of Medicine, Istanbul, TUR
| | - Murat Okutan
- Department of Medical Physics, Istanbul University Institute of Oncology, Istanbul, TUR
| | - Mehmet Barburoglu
- Department of Radiology, Istanbul University School of Medicine, Istanbul, TUR
| | - Ilyas Dolas
- Department of Neurological Surgery, Istanbul University School of Medicine, Istanbul, TUR
| | - Musa Altun
- Department of Radiation Oncology, Istanbul University School of Medicine, Istanbul, TUR
| | - Sema Yarman
- Department of Endocrinology, Istanbul University School of Medicine, Istanbul, TUR
| | - Pinar Kadıoglu
- Department of Endocrinology, Istanbul University - Cerrahpasa School of Medicine, Istanbul, TUR
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Gao Y, Wang M, Wu Y, Deng H, Xu Y, Ren Y, Wang C, Wang W. Gamma Knife Radiosurgery for Cushing's Disease: Evaluation of Biological Effective Dose from a Single-Center Experience. J Clin Med 2023; 12:jcm12041288. [PMID: 36835822 PMCID: PMC9966465 DOI: 10.3390/jcm12041288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/31/2022] [Accepted: 01/06/2023] [Indexed: 02/09/2023] Open
Abstract
Objective: Gamma knife radiosurgery (GKRS) has served as an adjunctive treatment in Cushing's disease (CD) for decades and has become a vital part of therapy in the management of CD. Biological effective dose (BED) is a radiobiological parameter with time correction, considering the cellular deoxyribonucleic acid repairment. We aimed to investigate the safety and efficacy of GKRS for CD and evaluate the association of BED and treatment outcome. Methods: A cohort study of 31 patients with CD received GKRS in West China Hospital between June 2010 and December 2021. Endocrine remission was defined as normalization of 24 h urinary free cortisol (UFC) or serum cortisol ≤ 50 nmol/L after a 1 mg dexamethasone suppression test. Result: The mean age was 38.6 years old, and females accounted for 77.4%. GKRS was the initial treatment for 21 patients (67.7%), and 32.3% of patients underwent GKRS after surgery due to residual disease and recurrence. The mean endocrine follow-up duration was 22 months. The median marginal dose was 28.0 Gy, and the median BED was 221.5 Gy2.47. Fourteen patients (45.1%) experienced control of hypercortisolism in the absence of pharmacological treatment, and the median duration to remission was 20.0 months. The cumulative rates of endocrine remission at 1, 2, and 3 years after GKRS were 18.9%, 55.3%, and 72.21%, respectively. The total complication rate was 25.8%, and the mean duration from GKRS to hypopituitary was 17.5 months. The new hypopituitary rate at 1, 2, and 3 years were 7.1%, 30.3%, and 48.4%, respectively. A high BED level (BED > 205 Gy2.47) was associated with better endocrine remission than a low BED level (BED ≤ 205 Gy2.47), while no significant differences were found between the BED level and hypopituitarism. Conclusions: GKRS was a second-line therapeutic option for CD with satisfactory safety and efficacy. BED should be considered during GKRS treatment planning, and optimization of BED is a potentially impactful avenue toward improving the efficacy of GKRS.
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Affiliation(s)
- Yuan Gao
- Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guoxue Alley, Chengdu 610000, China
| | - Mengqi Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guoxue Alley, Chengdu 610000, China
| | - Yang Wu
- Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guoxue Alley, Chengdu 610000, China
| | - Hao Deng
- Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guoxue Alley, Chengdu 610000, China
| | - Yangyang Xu
- Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guoxue Alley, Chengdu 610000, China
| | - Yan Ren
- Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu 610000, China
| | - Chun Wang
- Diabetic Foot Care Center, Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu 610000, China
- Correspondence: (C.W.); (W.W.)
| | - Wei Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, 37 Guoxue Alley, Chengdu 610000, China
- Correspondence: (C.W.); (W.W.)
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Dumot C, Schlesinger D, Mantziaris G, Dayawansa S, Xu Z, Sheehan JP. Role of biological effective dose for prediction of endocrine remission in acromegaly patients treated with stereotactic radiosurgery. Pituitary 2023; 26:124-131. [PMID: 36471108 DOI: 10.1007/s11102-022-01293-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE Stereotactic radiosurgery (SRS) can be used in acromegaly patients to achieve endocrine remission. In this study we evaluate the biological effective dose (BED) as a predictor of SRS outcomes for acromegaly. METHOD This retrospective, single-center study included patients treated with single-fraction SRS with growth hormone secreting pituitary adenomas and available endocrine follow-up. Kaplan-Meier analysis was used to study endocrine remission, new pituitary deficit, and tumor control. Cox analyses were performed using two models [margin dose (model 2) versus BED (model 1)]. RESULTS Sixty-seven patients (53.7% male) with a median age of 46.8 years (IQR 21.2) were treated using a median dose of 25 Gy (IQR 5), and a median BED of 171.9Gy2.47 (IQR 66.0). Five (7.5%) were treated without stopping antisecretory medication. The cumulative probability of maintained endocrine remission off suppressive medications was 62.5% [47.9-73.0] at 3 years and 76.5% [61.0-85.9] at 5 years. IGF1i > 1.5 was a predictor of treatment failure [Hazard ratio (HR) 0.40 (0.21-0.79) in model 1, p = 0.00783]. Margin dose > 22 Gy [HR 2.33 (1.06-5.13), p = 0.03593] or a BED > 170Gy2.47 [HR 2.02 (1.06-3.86), p = 0.03370] were associated with endocrine remission. The cumulative probability of new hypopituitarism after SRS was 36.8% (CI 95% 22.4-45.9) at 3 years and 53.2% (CI 95% 35.6-66) at 5 years. BED or margin dose were not associated with new hypopituitarism. CONCLUSION BED is a strong predictor of endocrine remission in patients treated with SRS. Dose planning and optimization of the BED to > 170Gy2.47 give a greater probability of endocrine remission in acromegalic patients.
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Affiliation(s)
- Chloe Dumot
- Department of Neurological Surgery, University of Virginia, Charlottesville, VG, USA
- Department of neurological surgery, Hospices civils de Lyon, Lyon, France
| | - David Schlesinger
- Department of Neurological Surgery, University of Virginia, Charlottesville, VG, USA
| | - Georgios Mantziaris
- Department of Neurological Surgery, University of Virginia, Charlottesville, VG, USA
| | - Sam Dayawansa
- Department of Neurological Surgery, University of Virginia, Charlottesville, VG, USA
| | - Zhiyuan Xu
- Department of Neurological Surgery, University of Virginia, Charlottesville, VG, USA
| | - Jason P Sheehan
- Department of Neurological Surgery, University of Virginia, Charlottesville, VG, USA.
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Sorohan MC, Poiana C. Vertebral Fractures in Acromegaly: A Systematic Review. J Clin Med 2022; 12:jcm12010164. [PMID: 36614962 PMCID: PMC9821150 DOI: 10.3390/jcm12010164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Acromegaly is characterized by a very particular alteration of bone microarchitecture, leading to increased vertebral fragility. However, due to inconsistent and insufficient evidence, no guidelines are available for the evaluation of this osteopathy. METHODS We performed a literature review of studies published between 1968 and January 2022 on the PubMed and SCOPUS databases using the terms "acromegaly" and "vertebral fractures". Twenty-four studies were found eligible for inclusion, published between June 2005 and November 2021. Included studies evaluated acromegaly patients, who were assessed for the presence of vertebral fractures. We excluded case reports, reviews, meta-analyses, letters to the editor, articles not written in English, and research performed on the same set of patients without significant differences in study design. Risk of bias was avoided by following the ROBIS risk of bias recommendations. We executed rigorous data collection, and the results are depicted as a narrative overview, but also, as statistical synthesis. Limitations of the evidence presented in the study include study heterogeneity, small sample sizes, and a small number of prospective studies with short follow-up. FINDINGS Data regarding vertebral fractures (VFs) in acromegaly and their influencing factors are variable. Twenty-four studies were included, nine out of which had a prospective design. The smallest group of acromegaly patients had 18 subjects and the largest included 248 patients. Prevalence ranges between 6.5% and 87.1%, although most studies agree that it is significantly higher than in controls. VFs also have a higher incidence (between 5.6% and 42%) and are more frequently multiple (between 46.15% and 71%). Evidence shows that disease activity and active disease duration are influencing factors for the prevalence and incidence of VFs. Nonetheless, hypogonadism does not seem to influence the frequency of VFs. While reports are conflicting regarding the use of bone mineral density in acromegaly, evidence seems to be slightly in favor of it not being associated with VFs. However, trabecular bone score is significantly lower in fractured patients, although no prospective studies are available. INTERPRETATION Vertebral fractures evaluation should be performed with regularity in all acromegalic patients, especially in the presence of active disease. Disease activity is an important determinant of vertebral fracture incidence and prevalence, although hypogonadism is less so. To clarify the predictive value of both BMD and TBS for vertebral fractures, additional, larger, prospective studies are necessary.
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Affiliation(s)
- Madalina Cristina Sorohan
- CI Parhon National Institute of Endocrinology, 011863 Bucharest, Romania
- Department of Endocrinology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Correspondence:
| | - Catalina Poiana
- CI Parhon National Institute of Endocrinology, 011863 Bucharest, Romania
- Department of Endocrinology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
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Huo M, Rose M, van Prooijen M, Cusimano MD, Laperriere N, Heaton R, Gentili F, Payne D, Shultz DB, Kongkham P, Kalia SK, Schwartz M, Bernstein M, Spears J, Zadeh G, Hodaie M, Tsang DS. Importance of Cobalt-60 Dose Rate and Biologically Effective Dose on Local Control for Intracranial Meningiomas Treated With Stereotactic Radiosurgery. Neurosurgery 2022; 90:140-147. [PMID: 34982881 DOI: 10.1227/neu.0000000000001755] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/24/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Radiosurgery dose rate and biologically effective dose (BED) are associated with outcomes after stereotactic radiosurgery (SRS) for functional neurosurgical conditions and some benign tumors. It is not known if these factors affect the efficacy of SRS for meningioma. OBJECTIVE To determine the association between cobalt-60 dose rate and BED on outcomes in patients with meningioma treated with SRS. METHODS A single-institution cohort of 336 patients treated between 2005 and 2018 with cobalt-based SRS for 414 separate meningioma lesions was assembled. BED was calculated using an SRS-specific monoexponential model accounting for treatment time per lesion, assuming α/β = 2.47 Gy. Cumulative incidences of local failure (LF) were reported after considering the competing risk of death, on a per-lesion basis. Multivariable analysis of LF was performed using a proportional hazards model. RESULTS The most common SRS dose was 12 Gy (n = 227); 140 lesions received 14 Gy. Five-year LF was 15.6% (95% confidence interval 10.4-21.9) and 4.3% (1.4-9.8) in patients who had a dose rate of <2.95 and ≥2.95 Gy/min, respectively (P = .0375). Among 354 grade I or unresected lesions treated with SRS, BED >50 Gy2.47 was associated with a lower incidence of LF (P = .0030). Each 1 Gy/min increase in dose rate was associated with an adjusted hazard ratio of 0.53 (95% confidence interval, 0.29-0.97, P = .041) for LF. Prescription dose >12 Gy was not associated with a lower incidence of LF. CONCLUSION Patients with meningiomas treated with lower dose rates experienced a higher incidence of LF than those treated with higher dose rates.
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Affiliation(s)
- Michael Huo
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Melanie Rose
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Monique van Prooijen
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Michael D Cusimano
- Division of Neurosurgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Normand Laperriere
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Robert Heaton
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Fred Gentili
- Division of Neurosurgery, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - David Payne
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - David B Shultz
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Paul Kongkham
- Division of Neurosurgery, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Suneil K Kalia
- Division of Neurosurgery, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Michael Schwartz
- Division of Neurosurgery, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Mark Bernstein
- Division of Neurosurgery, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Julian Spears
- Division of Neurosurgery, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada
| | - Gelareh Zadeh
- Division of Neurosurgery, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Mojgan Hodaie
- Division of Neurosurgery, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
| | - Derek S Tsang
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
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10
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Albano L, Losa M, Barzaghi LR, Niranjan A, Siddiqui Z, Flickinger JC, Lunsford LD, Mortini P. Gamma Knife Radiosurgery for Pituitary Tumors: A Systematic Review and Meta-Analysis. Cancers (Basel) 2021; 13:cancers13194998. [PMID: 34638482 PMCID: PMC8508565 DOI: 10.3390/cancers13194998] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/27/2021] [Accepted: 10/03/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Pituitary tumors represent approximately 10–15% of all brain neoplasms. Gamma Knife, the most commonly used stereotactic radiosurgery technique worldwide, plays an important role in the treatment of several pituitary neoplasm. It is currently used in cases of residual or recurrent tumors after surgery or as primary treatment when surgery is contraindicated. Its goals are long-term tumor control, preservation of visual function, and, for secreting pituitary adenomas, endocrine remission. Several retrospective case-series (level of evidence IV) on Gamma Knife for pituitary tumors have been published describing encouraging outcomes; only one systematic review and meta-analysis on non-functioning pituitary adenoma has been recently reported. We provide a systematic review of the literature and meta-analysis from the last two decades on Gamma Knife radiosurgery for several pituitary tumors with the aim of describing and confirming safety and effectiveness of this technique. Abstract To describe and evaluate outcomes of Gamma Knife radiosurgery (GK) for the treatment of pituitary tumors over the past twenty years, a systematic review and meta-analysis according to PRISMA statement was performed. Articles counting more than 30 patients were included. A weighted random effects models was used to calculate pooled outcome estimates. From 459 abstract reviews, 52 retrospective studies were included. Among them, 18 reported on non-functioning pituitary adenomas (NFPA), 13 on growth hormone (GH)-secreting adenomas, six on adrenocorticotropic hormone (ACTH)-secreting adenomas, four on prolactin hormone (PRL)-secreting adenomas, and 11 on craniopharyngiomas. Overall tumor control and five-year progression free survival (PFS) estimate after one GK procedure for NFPA was 93% (95% CI 89–97%) and 95% (95% CI 91–99%), respectively. In case of secreting pituitary adenomas, overall remission (cure without need for medication) estimates were 45% (95% CI 35–54%) for GH-secreting adenomas, 64% (95% CI 0.52–0.75%) for ACTH-secreting adenomas and 34% (95% CI: 19–48%) for PRL-secreting adenomas. The pooled analysis for overall tumor control and five-year PFS estimate after GK for craniopharyngioma was 74% (95% CI 67–81%) and 70% (95% CI: 64–76%), respectively. This meta-analysis confirms and quantifies safety and effectiveness of GK for pituitary tumors.
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Affiliation(s)
- Luigi Albano
- Departments of Neurosurgery and Gamma Knife Radiosurgery, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy; (L.R.B.); (P.M.)
- Neuroimaging Research Unit, Division of Neuroscience, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy
- Correspondence: (L.A.); (M.L.); Tel.: +390226432396 (L.A. & M.L.)
| | - Marco Losa
- Departments of Neurosurgery and Gamma Knife Radiosurgery, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy; (L.R.B.); (P.M.)
- Correspondence: (L.A.); (M.L.); Tel.: +390226432396 (L.A. & M.L.)
| | - Lina Raffaella Barzaghi
- Departments of Neurosurgery and Gamma Knife Radiosurgery, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy; (L.R.B.); (P.M.)
| | - Ajay Niranjan
- Departments of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (A.N.); (L.D.L.)
- Center for Image-Guided Neurosurgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (Z.S.); (J.C.F.)
| | - Zaid Siddiqui
- Center for Image-Guided Neurosurgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (Z.S.); (J.C.F.)
- Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - John C. Flickinger
- Center for Image-Guided Neurosurgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (Z.S.); (J.C.F.)
- Department of Radiation Oncology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | - Lawrence Dade Lunsford
- Departments of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (A.N.); (L.D.L.)
- Center for Image-Guided Neurosurgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA; (Z.S.); (J.C.F.)
| | - Pietro Mortini
- Departments of Neurosurgery and Gamma Knife Radiosurgery, IRCCS Ospedale San Raffaele and Vita-Salute San Raffaele University, 20132 Milan, Italy; (L.R.B.); (P.M.)
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11
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Tuleasca C, Faouzi M, Maeder P, Maire R, Knisely J, Levivier M. Biologically effective dose correlates with linear tumor volume changes after upfront single-fraction stereotactic radiosurgery for vestibular schwannomas. Neurosurg Rev 2021; 44:3527-3537. [PMID: 33839944 PMCID: PMC8592970 DOI: 10.1007/s10143-021-01538-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/21/2020] [Accepted: 03/24/2021] [Indexed: 11/26/2022]
Abstract
Vestibular schwannomas (VSs) are benign, slow-growing tumors. Management options include observation, surgery, and radiation. In this retrospective trial, we aimed at evaluating whether biologically effective dose (BED) plays a role in tumor volume changes after single-fraction first intention stereotactic radiosurgery (SRS) for VS. We compiled a single-institution experience (n = 159, Lausanne University Hospital, Switzerland). The indication for SRS was decided after multidisciplinary discussion. Only cases with minimum 3 years follow-up were included. The Koos grading, a reliable method for tumor classification was used. Radiosurgery was performed using Gamma Knife (GK) and a uniform marginal prescription dose of 12 Gy. Mean BED was 66.3 Gy (standard deviation 3.8, range 54.1-73.9). The mean follow-up period was 5.1 years (standard deviation 1.7, range 3-9.2). The primary outcome was changes in 3D volumes after SRS as function of BED and of integral dose received by the VS. Random-effect linear regression model showed that tumor volume significantly and linearly decreased over time with higher BED (p < 0.0001). Changes in tumor volume were also significantly associated with age, sex, number of isocenters, gradient index, and Koos grade. However, the effect of BED on tumor volume change was moderated by time after SRS and Koos grade. Lower integral doses received by the VSs were inversely correlated with BED in relationship with tumor volume changes (p < 0.0001). Six (3.4%) patients needed further intervention. For patients having uniformly received the same marginal dose prescription, higher BED linearly and significantly correlated with tumor volume changes after SRS for VSs. BED could represent a potential new treatment paradigm for patients with benign tumors, such as VSs, for attaining a desired radiobiological effect. This could further increase the efficacy and decrease the toxicity of SRS not only in benign tumors but also in other SRS indications.
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Affiliation(s)
- Constantin Tuleasca
- Neurosurgery and Neurooncology Service, Centre Hospitalier Regional Universitaire de Lille, Roger Salengro Hospital, Lille, France.
- Department of Clinical Neurosciences, Neurosurgery Service and Gamma Knife Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland.
- Faculty of Biology and Medicine (FBM), University of Lausanne (Unil), Lausanne, Switzerland.
- Signal Processing Laboratory (LTS 5), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
| | - Mohamed Faouzi
- Division of Biostatistics, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Philippe Maeder
- Neuroradiology Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Raphael Maire
- ENT Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Jonathan Knisely
- Weill Cornell Medicine, Department of Radiation Oncology, New York-Presbyterian, New York City, NY, USA
| | - Marc Levivier
- Department of Clinical Neurosciences, Neurosurgery Service and Gamma Knife Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland
- Faculty of Biology and Medicine (FBM), University of Lausanne (Unil), Lausanne, Switzerland
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