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Chen X, Li M, Li W, Zheng W, Wu W. Photodynamic therapy successfully treats refractory onychomycosis caused by Trichosporon asahii: a case report. Photodiagnosis Photodyn Ther 2024; 46:104045. [PMID: 38479606 DOI: 10.1016/j.pdpdt.2024.104045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 02/28/2024] [Accepted: 03/08/2024] [Indexed: 04/04/2024]
Abstract
Onychomycosis, a fungal infection affecting the nail, is characterized by discoloration and thickening of the nail plate and is the most prevalent nail infection globally. We present a case of onychomycosis caused by Trichosporon asahii, a less common etiology. Notably, the patient was successfully treated with a non-traditional antibacterial approach, photodynamic therapy, which has been infrequently documented in the literature for such infections.
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Affiliation(s)
- Xiaoli Chen
- Department of Plastic and Dermatological Surgery, The Fifth People's Hospital of Hainan Province, Haikou, Hainan, PR China
| | - Min Li
- Clinical School of Medicine, Jiangxi University of Chinese Medicine, Nan Chang, PR China
| | - Wen Li
- Department of Plastic and Dermatological Surgery, The Fifth People's Hospital of Hainan Province, Haikou, Hainan, PR China
| | - Wenai Zheng
- Department of Plastic and Dermatological Surgery, The Fifth People's Hospital of Hainan Province, Haikou, Hainan, PR China.
| | - Weiwei Wu
- Department of Plastic and Dermatological Surgery, The Fifth People's Hospital of Hainan Province, Haikou, Hainan, PR China.
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Gálvez END, Aguilera J, Fonda-Pascual P, de Gálvez MV, de Andrés-Díaz JR, Vidal-Asensi S, Herrera-Acosta E, Gago-Calderon A. Analysis and evaluation of the operational characteristics of a new photodynamic therapy device. Photodiagnosis Photodyn Ther 2022; 37:102719. [PMID: 35021108 DOI: 10.1016/j.pdpdt.2022.102719] [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: 09/15/2021] [Revised: 12/19/2021] [Accepted: 01/07/2022] [Indexed: 10/19/2022]
Abstract
One of the key aspects of photodynamic therapy is the light source that is used to irradiate the lesion to be treated. The devices used must ensure that their emission spectrum matches the absorption spectrum of the photosensitizer, so that treatment radiation is delivered only on the injured area, without irradiating healthy tissue at superficial or deep levels. Irradiance values must be adequate in order to avoid thermal damage, exceed the oxygen replenishment rate and avoid long treatment times. Furthermore, the device should be user-friendly, inexpensive, and able to be adapted to different photosensitizers. We have developed an easy-to-use and highly customizable device based on LED technology. Its innovative geometric design allows radiation to be delivered to a small treatment surface, since the LEDs are arranged in three arms, the configuration of which directs their radiation on the treatment point. Different high-power color LEDs are disposed on the arms, and can be independently selected based on the most effective wavelengths for exciting the different photodynamic therapy photosensitizers. We have tested the prototype in 5 different patients (1 actinic keratose, 1 actinic cheilitis, 1 superficial basal cell carcinoma and 2 Bowen's disease) and after 1-2 sessions of total cumulative dose of 25-50 J / cm2, 100% clearance of lesions were obtained. Our device can be used by any professional in the field, whether for medical or research purposes. It facilitates the development of treatment protocols and trials with different photosensitizers.
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Affiliation(s)
- Enrique Navarrete-de Gálvez
- Project Engineering Area, Department of Graphic Expression Design and Projects, University of Málaga, Málaga, Spain
| | - José Aguilera
- Photobiological Dermatology Laboratory Medical Research Centre, Department of Dermatology and Medicine, School of Medicine, University of Málaga, Málaga, Spain.
| | | | - María Victoria de Gálvez
- Photobiological Dermatology Laboratory Medical Research Centre, Department of Dermatology and Medicine, School of Medicine, University of Málaga, Málaga, Spain
| | - José Ramón de Andrés-Díaz
- Project Engineering Area, Department of Graphic Expression Design and Projects, University of Málaga, Málaga, Spain
| | | | - Enrique Herrera-Acosta
- Photobiological Dermatology Laboratory Medical Research Centre, Department of Dermatology and Medicine, School of Medicine, University of Málaga, Málaga, Spain; Dermatology Service, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Alfonso Gago-Calderon
- Project Engineering Area, Department of Graphic Expression Design and Projects, University of Málaga, Málaga, Spain
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