Navigating the Learning Curve: Training for vNOTES Surgeons

Introduction

Transvaginal natural orifice transluminal endoscopic surgery (vNOTES) is reshaping women‑led gynecologic care by delivering scar‑free hysterectomies and adnexal procedures with less pain and faster recovery. Structured training—combining didactics, high‑fidelity simulation, and mentored live cases—ensures that surgeons acquire the precise endoscopic and vaginal skills needed to protect patients. Evidence from cumulative‑sum analyses shows that operative time, complication rates, and hospital stay improve markedly after the initial learning phases, typically after 10‑15 supervised cases and mastery by 50‑60 cases. Mastering the learning curve is therefore essential to provide safe, efficient, and patient‑centered outcomes.

Understanding NOTES and vNOTES Foundations

Natural orifice transluminal endoscopic surgery (NOTES) accesses the abdominal cavity through an internal opening—mouth, rectum, vagina, or urethra—creating a small internal incision instead of a skin scar. The vaginal variant vNOTES eliminates any abdominal incision, giving women a scar‑free result, lower postoperative pain, and reduced need for narcotics. Because the entry point is internal, hospital stays are often less than 24 hours and recovery is faster than with open or conventional laparoscopic surgery. In a NOTES cholecystectomy, the gallbladder is removed via a transvaginal or transgastric route, offering comparable safety while avoiding visible scars and decreasing wound‑related complications. Similarly, a NOTES appendectomy uses a natural orifice—most commonly the vagina—to reach and excise the appendix, providing a minimally invasive, cosmetically superior alternative to laparoscopic appendectomy. Both procedures rely on endoscopic visualization, secure closure of the entry site, and careful patient selection, and they represent the cutting edge of women‑centered, minimally invasive surgical care.

Preoperative Preparation and Patient Safety

Before any minimally invasive surgery—whether traditional laparoscopy or transvaginal NOTES (vNOTES)—patients are asked to fast from midnight the night before, avoid solid foods and clear liquids, and empty the bladder immediately before entering the operating room. Blood‑thinning agents (aspirin, ibuprofen, anticoagulants) and herbal supplements that increase bleeding risk should be stopped as directed, and smoking or alcohol use is discouraged in the days leading up to the case because they impair wound healing and anesthesia safety. Hormonal contraception may need to be paused if pregnancy is a concern.
Key risk factors for intra‑operative bladder injury in vNOTES include a history of cesarean delivery and the absence of prior vaginal delivery; both alter pelvic anatomy and increase the chance of ureteral or bladder trauma. Optimizing candidate selection during the early learning phase means choosing patients with normal pelvic anatomy, low to moderate BMI, no extensive adhesions, and a documented vaginal delivery when possible. This careful selection helps the surgeon achieve competency quickly while minimizing complications.

Fundamentals of Laparoscopic Surgery (FLS) and Skill Building

The Fundamentals of Laparoscopic Surgery (FLS) is a web‑based curriculum that blends cognitive learning with hands‑on technical training. Its core components include 13 didactic chapters on equipment setup, patient preparation, intra‑operative physiology (especially pneumoperitoneum), basic laparoscopic procedures, and postoperative care, plus a manual‑skills module that uses a trainer box. The five standard tasks—peg‑transfer, pattern‑cutting, needle‑passing, extracorporeal knot‑tying, and intracorporeal knot‑tying—teach ambidexterity, depth perception, and precise instrument handling. Mastery of these tasks demonstrates the basic competence required for any minimally invasive surgery. FLS is essential for safe vNOTES adoption because the technique relies on the same endoscopic dexterity and suturing skills cultivated in FLS; the program’s objective benchmarks and credentialing requirements (endorsed by SAGES, ACS, and surgical boards) ensure that surgeons possess the knowledge, judgment, and technical proficiency before entering the natural‑orifice learning curve. Consequently, completing FLS reduces intra‑operative complications, shortens operative time, and supports the rapid, safe transition to vNOTES hysterectomy and adnexal surgery.

Structured Training Programs for vNOTES Surgeons

International cadaveric courses and observerships: The International vNOTES Academy runs one‑day, small‑group cadaver workshops at Orsi Academy (Merelbeke‑Melle, Belgium). Courses such as the Advanced Endometrial Cancer, Urogynecological Applications & Retroperitoneal Dissection, and Vaginal Mesh Removal require prior minimally invasive hysterectomy experience and provide supervised hands‑on surgery. Observatory placements let surgeons watch live cases and gain real‑time insight into patient selection and technique.

Webinars, podcasts, and live Q&A sessions: The U.S. vNOTES portal (vnotes.com) offers monthly webinars (2022‑2025) featuring Dr. Jan Baekelandt, Dr. Grover May, Dr. Jay Matkins, and Dr. Brandi Hardin. Topics include hysterectomy foundations, adnexal pathology, high‑BMI access, urogynecologic applications, and recovery. Live Q&A and downloadable resources help surgeons navigate the learning curve and stay current with best practices.

Equipment support from Applied Medical: Applied Medical supplies the GelPOINT V‑Path transvaginal access platform, a dedicated port system that creates a sealed, flexible entry with integrated smoke‑evacuation and the GelSeal Cap. This hardware enables safe instrument triangulation, visualization, and cuff closure, making vNOTES procedures efficient and reproducible.

Learning Curve Insights and Operative Details

The learning curve for vNOTES hysterectomy has been mapped using CUSUM analysis of operative time. In a series of 139 cases, four phases emerged: initiation (cases 1‑12, OT ≈ 66 min), consolidation (cases 13‑53, OT ≈ 54 min), complexity (cases 54‑107, OT ≈ 64 min), and mastery (cases 108‑139, OT ≈ 55 min). Competency is reached after roughly 12 cases; mastery for more complex cases follows after about 53 cases, with no conversions to open or conventional laparoscopy and only five bladder injuries (3.6 %) repaired intra‑operatively.

A vNOTES hysterectomy proceeds with general anesthesia, sterile vaginal prep, and a circular paracervical colpotomy. The posterior peritoneal pouch is entered, a sealed single‑port device is placed, and a laparoscopic camera with articulating instruments dissects uterine vessels, round ligaments, and supports the uterus for removal through the vagina. The vaginal cuff is closed with absorbable sutures, hemostasis confirmed, and the patient is typically discharged within hours.

Typical operative duration averages 45‑60 minutes, comparable to traditional laparoscopic hysterectomy (TLH) but often shorter, with reduced early pain and faster discharge, while maintaining similar safety profiles.

Conclusion

Looking ahead, a woman‑led practice can leverage vNOTES to expand personalized, scar‑free gynecologic care, integrating robotic assistance and hybrid‑NOTES pathways for complex cases such as large fibroids or pelvic organ prolapse. Ongoing research into AI‑guided navigation and flexible instrumentation promises shorter learning curves and broader patient eligibility. To sustain safety, surgeons should engage in structured continuing‑education programs that combine simulation, cadaver labs, and live proctoring, while societies such as ACOG and SAGES endorse credentialing standards. Continuous quality monitoring through CUSUM dashboards, complication registries, and patient‑reported outcome measures will ensure that vNOTES remains a high‑value, patient‑centered option for women’s health today.