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  • Title: Effectiveness of photodynamic therapy with 5-aminolevulinic acid on HPV clearance in women without cervical lesions.
    Author: Cang W, Gu L, Hong Z, Wu A, Di W, Qiu L.
    Journal: Photodiagnosis Photodyn Ther; 2021 Jun; 34():102293. PubMed ID: 33857599.
    Abstract:
    BACKGROUND: High-risk HPV (hrHPV) not only increases the risk of cervical precancerous lesions and cervical cancer, but also adds psychological burden to HPV-positive women. 5-aminolevulinic acid photodynamic therapy (ALA-PDT) is a non-invasive and highly tissue-selective therapy. We aim to investigate the clinical efficacy of ALA-PDT for elimination of cervical hrHPV infection in HPV-positive women without cervical lesions. METHODS: A total of 57 hrHPV-positive women without pathologically proved cervical lesions received three treatments of ALA-PDT in total. HPV DNA testing and pap cytology were performed in all patients. Patients with positive HPV16/18 or abnormal TCT results received colposcopic biopsy during the follow-up. RESULTS: hrHPV clearance rate was 56.1 % (32/57) at 3-month follow-up and 68.1 % at 6-month follow-up. 100 % of HPV 18 and 87.5 % of HPV16 infections were cleared while the clearance rate was 48.8 % among those positive for 12 other high-risk types. Multivariate analysis showed HPV16/18 infection was associated with significantly higher clearance rate. HPV clearance rate in patients with multiple-type HPV infection was significantly lower than that in patients with single-type HPV infections. CONCLUSIONS: ALA-PDT is effective on treating hrHPV infection in patients with no cervical lesions. HPV16/18 positive cases can benefit most from ALA-PDT. Multitype-infected women need more sessions of 5- ALA-PDT to eradicate hrHPV infection.
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