1
|
Perez WD, Perez-Torres CJ. Neurocognitive and radiological changes after cranial radiation therapy in humans and rodents: a systematic review. Int J Radiat Biol 2023; 99:119-137. [PMID: 35511499 DOI: 10.1080/09553002.2022.2074167] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Radiation-induced brain injury is a common long-term side effect for brain cancer survivors, leading to a reduced quality of life. Although there is growing research pertaining to this topic, the relationship between cognitive and radiologically detected lesions of radiation-induced brain injury in humans remains unclear. Furthermore, clinically translatable similarities between rodent models and human findings are also undefined. The objective of this review is to then identify the current evidence of radiation-induced brain injury in humans and to compare these findings to current rodent models of radiation-induced brain injury. METHODS This review includes an examination of the current literature on cognitive and radiological characteristics of radiation-induced brain injury in humans and rodents. A thorough search was conducted on PubMed, Web of Science, and Scopus to identify studies that performed cognitive assessments and magnetic resonance imaging techniques on either humans or rodents after cranial radiation therapy. A qualitative synthesis of the data is herein reported. RESULTS A total of 153 studies pertaining to cognitively or radiologically detected radiation injury of the brain are included in this systematic review; 106 studies provided data on humans while 47 studies provided data on rodents. Cognitive deficits in humans manifest across multiple domains after brain irradiation. Radiological evidence in humans highlight various neuroimaging-detectable changes post-irradiation. It is unclear, however, whether these findings reflect ground truth or research interests. Additionally, rodent models do not comprehensively reproduce characteristics of cognitive and radiological injury currently identified in humans. CONCLUSION This systematic review demonstrates that associations between and within cognitive and radiological radiation-induced brain injuries often rely on the type of assessment. Well-designed studies that evaluate the spectrum of potential injury are required for a precise understanding of not only the clinical significance of radiation-induced brain injury in humans, but also how to replicate injury development in pre-clinical models.
Collapse
Affiliation(s)
- Whitney D Perez
- School of Health Sciences, Purdue University, West Lafayette, IN, USA
| | - Carlos J Perez-Torres
- School of Health Sciences, Purdue University, West Lafayette, IN, USA.,Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, USA.,Academy of Integrated Science, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.,School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| |
Collapse
|
2
|
Tsang DS, Kim L, Liu ZA, Janzen L, Khandwala M, Bouffet E, Laperriere N, Dama H, Keilty D, Craig T, Ramaswamy V, Hodgson DC, Mabbott D. Intellectual changes after radiation for children with brain tumors: which brain structures are most important? Neuro Oncol 2021; 23:487-497. [PMID: 33151327 DOI: 10.1093/neuonc/noaa217] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The objective of this study was to evaluate the contribution of radiation dose to different intracranial structures on changes in intellectual function for children with brain tumors. METHODS We evaluated children with brain tumors treated in 2005-2017 who had longitudinal neuropsychological assessments and available photon dosimetric data (if radiation therapy [RT] given). Full Scale Intelligence Quotient (FSIQ) and index scores were evaluated (perceptual reasoning index [PRI], processing speed index [PSI], verbal comprehension index [VCI], and working memory index [WMI]). Multivariable linear mixed effects models were used to model endpoints, with age at RT and dose to different brain regions as fixed effects and patient-specific random intercepts. P-values (P*) were adjusted for multiple comparisons. RESULTS Sixty-nine patients were included, 56 of whom received RT. Median neuropsychological follow-up was 3.2 years. Right temporal lobe mean dose was strongly associated with decline in FSIQ (P* = 0.005); with each gray increase in mean dose, there was a decrease of 0.052 FSIQ points per year. Dose to 50% (D50) of the supratentorial brain was associated with decline in PSI (P* = 0.006) and WMI (P* = 0.001). Right and left hippocampus D50 were individually strongly associated with declines in VCI (P* = 0.009 for each). Presence of a ventriculoperitoneal shunt decreased FSIQ by 10 points. CONCLUSIONS We reported associations between dosimetry to specific brain regions and intellectual outcomes, with suggested avoidance structures during RT planning. These models can help clinicians anticipate changes in neurocognition post-RT and guide selection of an optimal RT plan.
Collapse
Affiliation(s)
- Derek S Tsang
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Division of Haematology/Oncology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Laurence Kim
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Zhihui Amy Liu
- Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Laura Janzen
- Neurosciences and Mental Health Program, Research Institute, Hospital for Sick Children; Department of Psychology, University of Toronto, Toronto, Ontario, Canada
| | - Mohammad Khandwala
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Eric Bouffet
- Division of Haematology/Oncology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Normand Laperriere
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Division of Haematology/Oncology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Hitesh Dama
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Dana Keilty
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Tim Craig
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Vijay Ramaswamy
- Division of Haematology/Oncology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - David C Hodgson
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.,Division of Haematology/Oncology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Donald Mabbott
- Neurosciences and Mental Health Program, Research Institute, Hospital for Sick Children; Department of Psychology, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
3
|
Chatterjee A, Goda JS, Gupta T, Kamble R, Mokal S, Krishnatry R, Sarin R, Jalali R. A randomized trial of stereotactic versus conventional radiotherapy in young patients with low-grade brain tumors: occupational therapy-based neurocognitive data. Neurooncol Adv 2020; 2:vdaa130. [PMID: 33235996 PMCID: PMC7668487 DOI: 10.1093/noajnl/vdaa130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Radiotherapy for brain tumors in young patients is not only associated with improved survival but also long-term neurocognitive sequelae. We aimed to compare group differences in the executive neurocognitive outcomes in young patients with low-grade brain tumors treated with stereotactic conformal radiotherapy (SCRT) and conventional RT (ConvRT) techniques. METHODS This a phase 3 randomized trial that enrolled 200 young patients with benign brain tumors and low-grade gliomas. Patients were randomly allocated (1:1) to either SCRT or ConvRT arms and treated to a dose of 54 Gy in 30 fractions over 6 weeks. Lowenstein Occupational Therapy Cognitive Assessment battery was performed at preradiotherapy baseline, 6 months, and annually thereafter until 5 years. Executive functions measures included orientation, visual perception, spatial perception, motor praxis, visuomotor organization, thinking operations, and attention and concentration. The trajectory of these parameters was compared between the treatment arms over 5 years. RESULTS Two hundred patients were enrolled in the study (SCRT: 104 and ConvRT: 96). The median age was 13 years (interquartile range: 9-17); mean total neurocognitive scores over 5 years were significantly superior in SCRT arm as compared to ConvRT (difference in slope: 2.27, P = .024). Outcomes improved in the SCRT arm vis-à-vis ConvRT for the subdomain of visuomotor organization (difference in slope: 0.66, P < .001). Visuomotor organization scores significantly improved in majority of the substratification groups. Spatial perception improved in craniopharyngioma patients with SCRT technique as opposed to ConvRT. CONCLUSIONS SCRT achieved superior outcomes compared to ConvRT in certain executive neurocognitive functional domains. We provide high level of evidence in favor of SCRT. Trial Registration. ClinicalTrials.gov Identifier: NCT00517959.
Collapse
Affiliation(s)
- Abhishek Chatterjee
- Neuro Oncology Disease Management Group, Tata Memorial Centre, Parel, Mumbai, India.,Homi Bhaba National Institute, Trombay, Mumbai, Maharashtra, India
| | - Jayant S Goda
- Neuro Oncology Disease Management Group, Tata Memorial Centre, Parel, Mumbai, India.,Homi Bhaba National Institute, Trombay, Mumbai, Maharashtra, India
| | - Tejpal Gupta
- Neuro Oncology Disease Management Group, Tata Memorial Centre, Parel, Mumbai, India.,Homi Bhaba National Institute, Trombay, Mumbai, Maharashtra, India
| | - Rashmi Kamble
- Neuro Oncology Disease Management Group, Tata Memorial Centre, Parel, Mumbai, India.,Homi Bhaba National Institute, Trombay, Mumbai, Maharashtra, India
| | - Smruti Mokal
- Neuro Oncology Disease Management Group, Tata Memorial Centre, Parel, Mumbai, India.,Homi Bhaba National Institute, Trombay, Mumbai, Maharashtra, India
| | - Rahul Krishnatry
- Neuro Oncology Disease Management Group, Tata Memorial Centre, Parel, Mumbai, India.,Homi Bhaba National Institute, Trombay, Mumbai, Maharashtra, India
| | - Rajiv Sarin
- Neuro Oncology Disease Management Group, Tata Memorial Centre, Parel, Mumbai, India.,Homi Bhaba National Institute, Trombay, Mumbai, Maharashtra, India
| | - Rakesh Jalali
- Neuro Oncology Disease Management Group, Tata Memorial Centre, Parel, Mumbai, India.,Homi Bhaba National Institute, Trombay, Mumbai, Maharashtra, India
| |
Collapse
|