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Updated: Apr 27, 2026

Quantifying Cognitive Decrements Caused by Cranial Radiotherapy
Published on: October 18, 2011
Neurocognitive function after (chemo)-radiotherapy for head and neck cancer
L C Welsh1, A W Dunlop2, T McGovern2
1The Institute of Cancer Research, Sutton, Surrey, UK; The Royal Marsden Hospital, Sutton, Surrey, UK.
Radical radiotherapy for head and neck cancer (HNC) can cause brain damage. This review examines neurocognitive function (NCF) changes in HNC patients after treatment, highlighting risks and mitigation strategies.
Area of Science:
- Radiation Oncology
- Neuro-oncology
- Head and Neck Cancer Treatment
Background:
- Radical radiotherapy is crucial for head and neck cancer (HNC) treatment, often involving significant brain irradiation.
- Intensity-modulated radiotherapy techniques may increase irradiated brain volumes in HNC patients.
- Concomitant use of chemotherapy increases the risk of neurotoxicity in HNC patients.
Purpose of the Study:
- To review the evidence on late neurotoxicity of radical (chemo)-radiotherapy for HNC.
- To focus on the impact of treatment on neurocognitive function (NCF) in HNC patients.
- To identify potential measures for minimizing treatment-related neurotoxicity.
Main Methods:
- Literature review of studies on late neurotoxicity in HNC patients treated with radical (chemo)-radiotherapy.
- Focus on studies assessing neurocognitive function (NCF) outcomes.
- Analysis of risk factors contributing to neurocognitive decline.
Main Results:
- HNC patients are at risk for adverse late brain effects, including impaired neurocognitive function (NCF).
- Risk factors for HNC, such as smoking and alcohol use, are also linked to impaired NCF.
- Understanding the impact of (chemo)-radiotherapy on NCF is crucial due to improved survival rates.
Conclusions:
- Radical (chemo)-radiotherapy for HNC poses risks to neurocognitive function (NCF).
- Pre-existing risk factors exacerbate the potential for neurocognitive decline.
- Further research is needed to develop strategies for mitigating treatment-related neurotoxicity and preserving NCF.
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