Low-Grade Squamous Intraepithelial Lesions

Non-RCT clinical trial comparing 5-ALA photodynamic therapy and CO2 laser for persistent high-risk HPV-related low-grade cervical lesions.

The main purpose of this study is to verify the accuracy of the fluorescence photoelectric cervical lesion image detector relative to the pathological gold standard and the detection rate of CIN 2 +, as well as the significance of it as a shunt tool before colposcopy through a randomized controlled study. The secondary objectives were to compare the relative pathological accuracy of the fluorescence photoelectric cervical lesion image detection results with the HPV detection results and cytological results, and to compare the lesion area displayed by the fluorescence photoelectric cervical lesion image detector with the lesion area that appeared after traditional colposcopy chemical staining. In this study, 4200 subjects who have been evaluated and can be enrolled (these subjects have the indication of referral to colposcopy) will be included in the study, and they will be divided into two groups according to the principle of randomization. The histological results were obtained after routine colposcopy and biopsy. The experimental group first underwent colposcopy and biopsy after the judgment of the fluorescent photoelectric cervical lesion image detector to obtain histological results. Finally, the accuracy of the relative pathological results, the detection rate of CIN2 +, negative predictive value and positive predictive value of the two groups were compared.

The main purpose of this study is to explore the accuracy and clinical value of fluorescent photoelectric cervical lesion image detector as a screening and shunt tool for cervical lesions through a multi-center, large-sample real-world study with histopathology as the gold standard. The secondary purpose of the study was to verify the coincidence of the fluorescent photoelectric cervical lesion image detector with traditional colposcopic chemical staining. This study is expected to include 20,000 participants with definite histological results, and compare the specificity and sensitivity, negative predictive value and positive predictive value of three cervical lesion screening methods, such as fluorescent photoelectric cervical lesion image detector, HPV nucleic acid detection and cytology detection. The advantages and disadvantages of fluorescent photoelectric cervical disease image detector, HPV nucleic acid detection and cytology examination were analyzed, and their application scenarios were provided to provide evidence-based medical support for the establishment of comprehensive prevention and treatment system of cervical cancer suitable for China's national conditions.