1. Introduction
vitiligo, psoriasis, pain, infection, burns
VITILIGO, NEONATAL JAUNDICE, PRESSURE ULCER, VENOUS STASIS ULCERS, PSORIASIS, INFECTION, PRESSURE ULCERS, PRESSURE ULCERS, WOUND INFECTIONS
To investigate the distribution characteristics of pathogens in different stages of pressure ulcers and observe the application of linear polarized polychromatic light (LPPL) combined with silver sulfadiazine cream in treating varying stages of pressure ulcers. This study comprised 88 patients with pressure ulcers who were enrolled in the department of burn and plastic surgery of our hospital from April 2019 to April 2022. The wound exudates from patients were collected, followed by analyzing the distribution of pathogens in different stages of pressure ulcers. Patients were randomly divided into 2 groups. The first group (n = 44) received LPPL combined with silver sulfadiazine. The other group was intervened with LPPL group only for 2 weeks. The clinical efficacy, condition, and pain in the 2 groups, as well as the healing timeframes for patients were measured at different stages. The findings showed that among 88 patients with pressure ulcers, 62 were infected, and the infection rate was 70.45%. The pathogens that were observed in stage II and III to IV pressure ulcers were mainly Gram-negative bacteria. The total effective rate in the combined group was 90.91%, which was much higher than that of LPPL group (70.45%). Compared with LPPL group, the pressure ulcer scale for healing and visual analogue scale scores in the combined group were markedly lower (Pressure ulcers chronic refractory wounds that are characterized by high incidence, rapid development, and easy infection. They are difficult to cure, thereby posing a heavy social burden for health care system.As a topical antibiotic medication, the silver sulfadiazine cream has been widely applied in preventing and treating wound infections in patients with partial-thickness burns or venous stasis ulcers.The therapeutic effects of phototherapies have been documented for several decades with clinical applications that include neonatal jaundice, psoriasis, and vitiligo.