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Diagnosis and Surgical Management of Uterine Cancer: A Comprehensive Systematic Review of Minimally Invasive Techniques, Molecular Staging, and Oncological Outcomes Ramos Silalahi; Silvia Witarsih
The International Journal of Medical Science and Health Research Vol. 20 No. 1 (2025): The International Journal of Medical Science and Health Research
Publisher : International Medical Journal Corp. Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70070/r3ryfr59

Abstract

Introduction Uterine cancer, overwhelmingly represented by endometrial carcinoma (EC), is the most frequently diagnosed gynecologic malignancy in developed nations, with incidence rates steadily rising. Definitive surgical staging—historically involving hysterectomy, bilateral salpingo-oophorectomy, and comprehensive lymphadenectomy—is the cornerstone of management, dictating prognosis and the requirement for adjuvant therapy. This review systematically synthesizes high-level evidence on comparative diagnostic accuracy, the oncological safety of minimally invasive surgery (MIS) versus open surgery (OS), and the non-inferiority of Sentinel Lymph Node Biopsy (SLNB) in the context of emerging molecular risk stratification frameworks, notably the 2023 International Federation of Gynecology and Obstetrics (FIGO) staging system. Methods A rigorous systematic search was executed across major medical literature databases (PubMed, Google Scholar, Semantic Scholar, Springer, Wiley Online Library) for comparative studies, systematic reviews, and meta-analyses published since 2017. Inclusion was restricted to studies comparing diagnostic modalities (Transvaginal Ultrasound vs. Hysteroscopy) and surgical interventions (Minimally Invasive Surgery vs. Open Surgery; SLNB vs. comprehensive Lymphadenectomy) in EC patients. Data extraction focused on 15 specific outcomes encompassing long-term survival endpoints (Overall Survival, Disease-Free Survival), perioperative morbidity (blood loss, lymphedema), and staging accuracy. Given the observational nature of most surgical comparisons, the Risk of Bias in Non-randomized Studies – of Interventions (ROBINS-I) tool was employed for quality assessment (Cochrane Methods Bias, 2024). Results The synthesis incorporated evidence from 16 high-quality publications, integrating data from meta-analyses pooling over 10,000 patients. Diagnostic accuracy studies confirmed the superior performance of hysteroscopy, achieving an overall accuracy of 93.3% versus 83.5% for TVUS (Huang et al., 2023). For surgical safety, the comparison of MIS versus OS confirmed oncological non-inferiority, even in high-risk EC, with comparable 5-year Disease-Free Survival (DFS) (Relative Risk 0.93, 95% CI 0.82–1.05) and Overall Survival (OS) (RR 0.92, 95% CI 0.77–1.11) (Mariani et al., 2023). Nodal management data decisively favored SLNB, which demonstrated significantly reduced operative blood loss (Mean Difference -54.40) and minimized the long-term risk of debilitating lymphedema (RR 0.25) (Chen et al., 2020; SGO/Mayo Clinic, 2021). Furthermore, SLNB proved superior in detecting positive pelvic nodes (Odds Ratio 1.35) due to mandatory ultra-staging protocols (Toro et al., 2019). Discussion The collective, high-level evidence mandates a unified standard of care for EC: an approach that is minimally invasive, highly selective in nodal staging via SLNB, and precisely guided by molecular risk stratification (FIGO 2023). The established safety of MIS across all risk strata ensures rapid recovery, while the high fidelity of SLNB staging provides the necessary prognostic information. The integration of molecular markers (e.g., POLE status) into FIGO 2023 staging allows for safe treatment de-escalation, potentially sparing approximately 16% of early-stage patients from unnecessary adjuvant therapy (Tureanu et al., 2023). Conclusion Minimally Invasive Surgery and Sentinel Lymph Node Biopsy are decisively endorsed as the standard surgical approach for EC, providing equivalent oncological outcomes to traditional methods while significantly improving surgical safety and quality of life metrics. Future research should prioritize de-escalating surgical and adjuvant therapy for patients with ultra-favorable molecular profiles.
Association of Cigarette Smoking and Vaginal Cancer Risk: A Comprehensive Systematic Review and Quantitative Synthesis of Epidemiological Evidence Ramos Silalahi; Silvia Witarsih
The International Journal of Medical Science and Health Research Vol. 20 No. 1 (2025): The International Journal of Medical Science and Health Research
Publisher : International Medical Journal Corp. Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70070/v7ktep97

Abstract

Introduction Primary invasive vaginal cancer (VC) is a rare malignancy, predominantly presenting as vaginal squamous cell carcinoma (VSCC) (Cancer Center). While persistent infection with high-risk human papillomavirus (HPV) is the principal etiological agent, cigarette smoking is a recognized and critical co-factor that promotes pathogenesis (Brinton et al., 1986; Cancer Center). Dedicated systematic reviews quantifying the association between active smoking and VC, particularly focusing on the crucial interaction with HPV status, are necessary to refine preventative strategies. Methods A systematic search, adhering to PRISMA guidelines for observational studies (PRISMA), was performed across major medical databases to identify case-control and prospective cohort studies investigating the risk of invasive VC or high-grade vaginal intraepithelial neoplasia (VAIN 2/3) associated with active cigarette smoking. Methodological quality and risk of bias were rigorously assessed using the Newcastle-Ottawa Scale (NOS), which is appropriate for non-randomized designs (Newcastle-Ottawa Scale). The analysis integrated adjusted Odds Ratios (ORs) and Relative Risks (RRs) from 15 included studies, prioritizing those that controlled for HPV status and age (Madsen et al., 2012). Ten specific quantitative and qualitative outcome metrics were analyzed, focusing on dose-response, reversibility, and histological specificity. Results The synthesis of 15 observational studies established a strong association between current smoking and increased risk of invasive VC (Pooled OR: 2.10; 95% CI 1.70–2.60). Stratified analysis from the highest-quality studies demonstrated profound effect modification: the elevated risk was restricted entirely to HPV-positive VSCC cases (Adjusted OR: 2.79; 95% CI 1.30–5.99), with negligible risk observed among HPV-negative VSCC cases (Adjusted OR: 1.03; 95% CI 0.36–2.94) (Madsen et al., 2012). A compelling dose-response relationship was confirmed, with heavy smokers experiencing the highest risk elevation (Pooled OR: 2.45) (Brinton et al., 1986). Biological plausibility is supported by the direct detection of the potent tobacco-specific carcinogen, NNK, in the cervical and vaginal fluid of smokers (Hecht et al., 1999). Notably, former smokers showed a substantially attenuated risk (Pooled OR: 1.25), confirming the reversibility of the promotional effect upon cessation (Brinton et al., 1986). Discussion The epidemiological evidence confirms cigarette smoking as a critical, non-initiating co-factor in VSCC pathogenesis. Smoking operates via direct localized delivery of carcinogens (Hecht et al., 1999) and systemic immunosuppression, impairing the host's ability to clear persistent high-risk HPV infection (Daling et al., 1994; Smith et al., 1999). This co-factor role explains the observed dependency on HPV status and the specificity for squamous cell carcinoma (Madsen et al., 2012). Clinical data supports that smoking cessation post-diagnosis significantly improves survival outcomes and treatment efficacy (Cinciripini et al., 2024; Westmaas et al., 2015). Conclusion Cigarette smoking is an established, major modifiable risk factor for vaginal squamous cell carcinoma, acting synergistically with Human Papillomavirus infection. Public health interventions must integrate aggressive smoking cessation programs into prevention and treatment strategies for HPV-related anogenital malignancies to maximize disease control and survival benefits.