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From Basic Mechanisms to Clinical Research: Photodynamic Therapy Applications in Head and Neck Malignancies and Vascular Anomalies

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JOURNAL OF CLINICAL MEDICINE
卷 10, 期 19, 页码 -

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MDPI
DOI: 10.3390/jcm10194404

关键词

PDT; nasopharyngeal cancer; oral cancer; oropharyngeal cancer; laryngeal cancer; vascular anomalies; head and neck

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Head and neck cancers, largely squamous cell carcinomas, are commonly treated with surgical intervention, chemotherapy, and radiotherapy which may cause damage to healthy tissues. Photodynamic therapy has been shown to be effective in treating head and neck malignancies and vascular tumors without causing harm to underlying structures. Recent studies have demonstrated the efficacy of photodynamic therapy compared to traditional treatments with minimal adverse effects.
Head and neck cancers are largely squamous cell carcinomas derived from the epithelial lining of the structures in the region, and are often classified anatomically into oral, oropharyngeal, nasopharyngeal and laryngeal carcinomas. The region's component structures serve complex and intricate functions, such as speaking, swallowing and breathing, which are often compromised by these neoplasms. Such lesions may also cause disfigurement, leading to distressing social and psychological issues. Conventional treatments of these neoplasms usually involve surgical intervention with or without chemoradiotherapy. These have shown to be efficacious; however, they can also cause damage to healthy as well as diseased tissue, exacerbating the aforementioned problems. Access to a given region to deliver the treatments is also often a problem, due to the complex anatomical structures involved. The use of photodynamic therapy in the head and neck region has been established for about two decades. In this review, we looked at the basic mechanisms of this intervention, examined its use in common head and neck malignancies and vascular anomalies, and reported on the most recent clinical studies. We further included a clinical guide which can help replicate the use of this technology by any unit. Based on this review, photodynamic therapy has been shown to be efficacious in the treatment of head and neck malignancies and vascular tumours. This therapy can be targeted to the diseased tissue and causes no damage to underlying structures. Recent studies have shown this therapy to be as effective as conventional therapies, without causing major adverse effects.

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