Cervical cancer screening in high- and low-resource countries: implications and new developments

Area of Science:

• Oncology
• Public Health
• Gynecology

Background:

• Cytology-based cervical cancer screening has reduced incidence and mortality in developed nations.
• Resource-limited countries face challenges with frequent, lab-dependent screening programs.
• Alternative screening methods are needed for widespread cervical cancer prevention.

Purpose of the Study:

• To evaluate various cervical cancer screening strategies for diverse healthcare settings.
• To identify cost-effective and clinically effective methods for reducing cervical cancer.
• To assess the feasibility of different screening approaches in resource-limited areas.

Main Methods:

• Review of cytology, visual inspection with acetic acid, and human papillomavirus (HPV) testing.
• Analysis of screening program requirements, including training, infrastructure, and cost.
• Consideration of integrated strategies like immediate treatment post-screening.

Main Results:

• Cytology requires extensive resources, limiting its use in low-resource settings.
• Visual inspection with acetic acid is inexpensive but lacks reproducibility.
• HPV testing shows high sensitivity and negative predictive value but is currently costly.
• Integrated approaches, such as same-day diagnosis and treatment, show promise.

Conclusions:

• Effective cervical cancer screening programs must be adaptable to country-specific needs and resources.
• Combining screening with immediate treatment, like cryotherapy, can significantly impact cervical cancer reduction.
• HPV testing and visual inspection offer viable alternatives to cytology, especially when integrated with treatment.