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  • Title: Comparative study of topical 5-aminolevulinic acid photodynamic therapy and surgery for recurrent cervical high-grade squamous intraepithelial lesions following surgery.
    Author: Wang B, Yuan S, Su Y, Zhang C, Zhou M, Zhang M, Dai K, Wang Y, Cao L, Zhang T, Zhang M.
    Journal: Photodiagnosis Photodyn Ther; 2024 Apr; 46():103974. PubMed ID: 38373471.
    Abstract:
    OBJECTIVE: The study aimed to compare the clinical efficacy and safety of 5-aminolevulinic acid photodynamic therapy (ALA-PDT) and surgery in treating recurrent cervical high-grade squamous intraepithelial lesions (HSIL) after surgery due to precancerous lesions. METHODS: A total of 41 patients with recurrent cervical HSIL after surgery for precancerous lesions were studied retrospectively. Patients underwent ALA-PDT or surgery and were followed up at 3, 6, 9 and 12 months and then every six months after that. Clinical data were collected and the efficacy and safety of the two treatment methods were compared. RESULTS: Of the 41 patients with recurrent cervical HSIL after conization, 15 cases received ALA-PDT and 26 received surgery. At the six-month follow-up, the lesions' complete remission (CR) rate was 93.33 % in ALA-PDT group and 88.46 % in the surgery group. The human papillomavirus (HPV) clearance rates were 66.67 % and 73.08 %, respectively. No significant differences concerning the lesions' CR rate and the HPV clearance rate were observed between the two groups (P>0.05). At the twelve-month follow-up, the HPV clearance rates were 80.00 % and 91.67 %. No significant differences concerning the HPV clearance rate were observed between the two groups (P>0.05). In the surgery group, the HPV clearance rate and the lesions' CR rate were lower in patients over 45 years of age (25.00% vs. 81.82 %, P = 0.031; 50.00% vs. 95.45 %, P = 0.052). During the follow-up, there was no significant difference in the recurrence rate between the two groups (P>0.05). In addition, none of the patients progressed. In women treated with ALA-PDT, there was no vaginal bleeding, and no harmful effects on the cervical organizational structure or functions compared to the surgery group, and two women delivered successfully after ALA-PDT treatment. CONCLUSIONS: The efficacy of ALA-PDT was similar to that of surgery in treating recurrent cervical HSIL following surgery, with fewer side effects.
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