The endoscopic diving technique in endonasal transsphenoidal surgery: how I do it

Background: The endoscopic diving technique (EDT) is a procedure utilized in endonasal endoscopy, which consists of irrigating the surgical cavity during tumor removal, with a continuous flow of pressurized saline solution. Methods: The authors provide a detailed step-by-step description of the technique, shedding light on surgical tips and pitfalls. Advantages, disadvantages, and the most useful application of the technique are clarified and showed with a high-quality endoscopic video. Conclusion: EDT represents an effective and safe procedure. It allows a wide exploration of the surgical cavity, providing tumor hydro-dissection, assisting in bleeding control, and optimizing the efficacy of endoscopic transsphenoidal surgery.