Termografia: um recurso auxiliar no monitoramento da temperatura da pele irradiada
Radiotherapy is one of the therapeutic modalities for the treatment of cancer and radiodermatitis is one of its side effects, with a high prevalence negatively impacting the patient’s quality of life, which can lead to limitation of the therapeutic dose of radiation, delay in completion or even disc...
| Autor principal: | Shiguihara, Dryelle Soster Iede |
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| Formato: | Dissertação |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2023
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/30637 |
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| Resumo: |
Radiotherapy is one of the therapeutic modalities for the treatment of cancer and radiodermatitis is one of its side effects, with a high prevalence negatively impacting the patient’s quality of life, which can lead to limitation of the therapeutic dose of radiation, delay in completion or even discontinuation of treatment. However, its diagnosis is still performed using qualitative scales. Recent studies have shown evidence that thermography could be useful in this context, as it is a technology that has been continuously improved. Although the pathophysiology of radiodermatitis is known, there are still few studies showing the thermal response to radiotherapy and mapping of radiation dermatitis (with its respective grading). Thus, the present study aimed to analyze the association between the temperature of the irradiated skin, the accumulated dose of radiation and the diagnosis of radiation dermatitis, through thermography. Descriptive research was carried out with 76 participants with cancer (skin, head, or neck), with thermographic recording immediately before and after irradiation (both on the affected and contralateral sides). For the diagnosis of radiodermatitis, the RTOG scale (Radiation Therapy Oncology Group) was used. Complementary information recorded in history taking were: sex, age, comorbidities, type and equipment used in the treatment, dose (daily and total), irradiated area. As main results in our sample, 70% of the participants had some degree of radiation dermatitis and significant differences in skin temperature were observed when compared to patients without radiodermatitis (32.88°C/91°F) and with radiodermatitis (thermal difference in average temperature greater than 1.0°C/34°F for both Grade I and Grade II radiation dermatitis). Regarding the diagnosis, the ideal time to perform the thermographic evaluation would be after receiving the new daily dose, where we also found a moderate correlation (0.474) between the temperature of the affected side after irradiation and the pre-irradiation cumulative dose. Our results demonstrate that radiodermatitis promotes a change in skin temperature that thermographic analysis is able to quantify. Finally, it can be concluded that there is an association between skin temperature, the accumulated radiation dose, and the appearance of radiodermatitis. Based on the results of this research, we suggest studies with larger samples, and, thus, the exploration of new methodologies with quantitative criteria for the diagnosis of radiodermatitis in a timely manner, whose objective is to avoid interruption of radiotherapy treatment, which can reduce the chances of curing cancer. It can be concluded that there is an association between skin temperature and the appearance of radiodermatitis. |
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