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Evaluating Vaginal Natural Orifice Transluminal Endoscopic Surgery for Early Stage Endometrial CancerVaginal surgery shows shorter hospital stays for endometrial cancer

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Key Takeaway
Vaginal natural orifice transluminal endoscopic surgery offers comparable safety and detection rates with shorter hospital stays.

This meta-analysis evaluated the efficacy of vaginal natural orifice transluminal endoscopic surgery compared to conventional laparoscopy for patients with early-stage endometrial cancer. The study focused on sentinel lymph node detection, surgical safety, and postoperative recovery metrics.

Results indicated that both bilateral and unilateral sentinel lymph node detection rates were comparable between the two surgical approaches. Specifically, the detection rate for the vaginal approach was 86.8% compared to 88.3% for laparoscopy, showing no statistically significant difference. Mapping failure rates were also similar across both groups.

Clinical outcomes such as operative time, estimated blood loss, and post-operative pain scores did not differ significantly between techniques. However, patients undergoing the vaginal approach experienced significantly shorter hospital stays. The conversion rate for the vaginal technique was noted at 2.7%.

While the findings suggest that the vaginal approach is a viable alternative for managing early-stage endometrial cancer, the evidence is limited by small non-randomized cohorts and a risk of bias. Prospective randomized trials are necessary to confirm these findings and establish definitive clinical guidelines.

How this fits prior evidence

This meta-analysis addresses a gap in surgical techniques for early-stage endometrial cancer. While prior coverage has focused on prognostic biomarkers like tumor budding, microbiome alterations, and molecular targets like TREM2+ macrophages, this study specifically evaluates the surgical approach for lymph node detection. It provides evidence that vaginal natural orifice transluminal endoscopic surgery offers comparable detection rates to conventional laparoscopy.

When facing a diagnosis of early-stage endometrial cancer, the surgical path is a critical step in treatment. Doctors often choose between traditional laparoscopy and a vaginal approach called vaginal natural orifice transluminal endoscopic surgery. This method aims to provide the same level of care while potentially improving the patient experience.

A review of data from 349 women shows that both surgical methods were equally effective at finding and mapping lymph nodes. The study also found that both methods resulted in similar amounts of blood loss, similar pain scores, and similar complication rates. This means the vaginal approach is just as safe as the traditional method for identifying the cancer's spread.

One clear benefit of the vaginal approach was a significantly shorter hospital stay for patients. While the results are promising, it is important to note that the evidence comes from small, non-randomized groups. Because of these limitations and a risk of bias, larger trials are still needed to confirm these findings for every patient.

What this means for you:
Vaginal surgery for endometrial cancer is as safe as traditional methods but leads to shorter hospital stays.

Common questions

Is the vaginal surgery as safe as traditional laparoscopy?

Yes, the study found that both the vaginal approach and traditional laparoscopy had comparable safety. Patients in both groups experienced similar complication rates, blood loss, and pain scores after surgery. Both methods were also equally effective at detecting and mapping lymph nodes.

How long do patients stay in the hospital with this surgery?

Patients who underwent the vaginal natural orifice transluminal endoscopic surgery had significantly shorter hospital stays compared to those who had traditional laparoscopy. This suggests the procedure may allow for a faster recovery at home.

Is this surgery effective at finding cancer spread?

The study found no significant difference in the detection rates of lymph nodes between the two methods. Both the vaginal approach and traditional laparoscopy were effective at identifying the lymph nodes needed to check for cancer spread.

Study Details

Study typeMeta analysis
Sample sizen = 349
EvidenceLevel 1
PublishedNov 2026
View Original Abstract ↓
OBJECTIVE: To compare the bilateral and unilateral sentinel lymph node detection rates, mapping failure rates, and perioperative outcomes of vaginal natural orifice transluminal endoscopic surgery versus conventional laparoscopy in women with early-stage endometrial cancer. METHODS: A systematic search of PubMed, Cochrane Central Register of Controlled Trials, Scopus, and Google Scholar was performed from inception to March 2026. Comparative studies of vaginal natural orifice transluminal endoscopic surgery versus laparoscopy for sentinel lymph node mapping in endometrial cancer were eligible. Risk of bias was assessed using the Risk of Bias in Non-randomized Studies of Interventions-I tool for non-randomized studies. Meta-analysis was performed using a random-effects model. RESULTS: Four comparative cohort studies comprising 349 patients (148 vaginal natural orifice transluminal endoscopic surgery; 201 laparoscopy) were included. Baseline age, parity, and comorbidity burden were broadly similar between groups, although body mass index differed between arms in 2 studies. The bilateral sentinel lymph node detection rate was 86.8% with vaginal natural orifice transluminal endoscopic surgery versus 88.3% with laparoscopy (odds ratio 0.87, 95% confidence interval 0.43 to 1.77, p = .71, I = 0%). Unilateral detection and mapping failure rates were comparable between groups. Operative time, estimated blood loss, post-operative pain scores, and complication rates did not differ significantly. Hospital stay was significantly shorter following vaginal natural orifice transluminal endoscopic surgery. The conversion rate was 2.7% in the vaginal natural orifice transluminal endoscopic surgery group. CONCLUSIONS: In carefully selected patients treated by surgeons experienced in transvaginal endoscopic surgery, vaginal natural orifice transluminal endoscopic surgery achieved bilateral and unilateral sentinel lymph node detection rates and mapping failure rates comparable to conventional laparoscopy in early-stage endometrial cancer, with comparable perioperative safety. Available evidence is limited to small non-randomized cohorts with substantial risk of bias; prospective randomized trials are needed to validate these findings and define the optimal patient selection criteria before widespread clinical adoption.
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