Efficacy and Safety of Photodynamic Therapy for CIN3

Efficacy and Safety of Photodynamic Therapy for Cervical Intraepithelial Neoplasia 3(CIN3):A Multicenter Prospective Cohort Study

To investigate the efficacy and safety of photodynamic therapy (20% 5-amino-ketovalerate 630nm red light) in the treatment of cervical intraepithelial neoplasia 3(CIN 3)in women in the real world

Inclusion Criteria:

• CIN3, photodynamic therapy was required,
• type 1 2 transformation area, colposcopy was sufficient
• the lesion boundary was completely visible
• The ECC did not indicate high-grade lesions

Exclusion Criteria:

• coexistence or suspicion of cancer;
• TCT HSIL
• involving glands
• Porphyria patients, or suspected allergic to red and blue light.
• severe medical comorbidities；