藤井 多久磨

ABSTRACT Objective This study investigated the reasons behind the decreasing trend of lymph node dissection for endometrial cancer (EC) in Japan, focusing on the impact of minimally invasive surgery (MIS) adoption, evolving clinical guidelines, and physician work‐style reform. Methods A cross‐sectional survey of the Japan Society of Gynecologic Oncology and Endoscopy (JSGOE) members was conducted to investigate facility demographics, MIS adoption, lymphadenectomy practices, factors influencing omission, impact of work‐style reform, and perspectives on future EC management, such as molecular classification and sentinel lymph node biopsy (SLNB). Results In total, 424 responses were received, representing a response rate of 67.8%. MIS adoption for EC is widespread in Japan, with laparoscopy preferred over robotic surgery. Lymphadenectomy is commonly performed; however, the criteria for omission varied among institutions, with clinical guidelines published by the Japanese Society of Gynecologic Oncology having the greatest impact. Physician work‐style reform significantly affected surgical practices such as surgical scheduling, adherence to time limits, and the number of surgeons participating in surgeries, while it had little impact on the criteria for lymphadenectomy omission. The adoption of molecular classifications is increasing with approximately half of the institutions planning to implement or having partially implemented them, while SLNBs remained relatively low. Conclusion This study highlights the significant impact of evolving clinical guidelines on lymphadenectomy practices for MIS for EC in Japan, and the limited impact of physician work‐style reform.

Colposcopy is an important element in the global challenge of reducing cervical cancer incidence. However, there are issues with expanding its use globally, including resources, training of colposcopists and quality assurance. This narrative review explores the role of colposcopists and the challenges of ensuring that practice and training are fit for purpose. The review found that colposcopy and colposcopists play three roles in managing cervical cancer: in diagnosis and interventions; communicating with patients; and supporting public education. It also found that colposcopy practices are evolving globally, alongside regional and national variations in vaccination, screening and treatment practices, creating important challenges. Many countries have introduced quality indicators or standards, but studies show significant variations from these in practice. Training of colposcopists also varies across regions. Some developed countries have defined curricula, but developing countries are more reliant on distance learning courses provided by international bodies. The review identified several ways to address these challenges, including setting standards for either practice or training, and training healthcare professionals from different backgrounds as colposcopists. New technologies such as artificial intelligence could also help. The review also identified some gaps in the literature, offering potential for further research. These include developing a consensus on the training needs in particular areas, and exploring how global or regional standards are applied at local levels, and how training for soft skills can best be delivered to colposcopists. It is considered essential that educational curricula should be tailored to the specific circumstances of each country or region.

Introduction Cervical cancer is the fourth most common malignancy in women and is primarily caused by persistent infection with high-risk human papillomavirus (HPV). In addition, host immune responses, genetic factors, and lifestyle habits also have etiological roles. The cervicovaginal microbiome undergoes dynamic changes during menopause, which may be involved in the progression of cervical neoplasia. We aimed to elucidate the association between cervical microenvironmental changes and the progression of cervical neoplasia before and after menopause by integrating analyses of the cervical microbiome, related metabolites, cytokines, and microRNAs. Methods A total of 248 HPV-positive women with cervical neoplasia, including 17 with cervical intraepithelial neoplasia (CIN1), 80 with CIN2, 82 with CIN3, and 69 with squamous cell carcinoma (SCC), were enrolled. As normal controls, 48 HPV-negative healthy women were included. Each group was stratified based on the mean menopausal age of 50 years. Cervical mucus was analyzed according to the methods outlined below. The microbiota was profiled by 16S rRNA gene sequencing, metabolites were analyzed by ultra-HPLC-tandem mass spectrometry, RT-qPCR was used for miRNA expression analysis, and RANTES levels were quantified by multiplex bead array. Data analysis was performed using MicrobiomeAnalyst and MetaboAnalyst. Results In the SCC group, Prevotella and Atopobium were the key bacterial genera among the younger group, while Peptoniphilus, Fusobacterium, and Porphyromonas were more prevalent in elderly group (LDA score > 4.5). We observed a consistent positive correlation between Atopobium and xanthine in younger groups with CIN2 or worse (p < 0.0001). However, no such correlations were detected in elderly women. In addition, Atopobium, Adlercreutzia, and Gardnerella showed significant positive correlation with nicotinic acid in younger women with SCC compared to the elderly women (p < 0.0001). In the younger SCC women, several metabolites were significantly elevated in groups with high expression levels of RANTES, miR-20b-5p, and miR-155-5p. Conclusion The cervical microbiome undergoes changes during menopause, and may influence disease progression by interacting with metabolites, cytokines, and miRNAs. These results highlight the potential for personalized medicine for cervical cancer that is tailored to different age groups.