Background: The aim of this study was to discuss the use of nasal irrigation and suction systems in endoscopic pituitary surgery to examine the sella and facilitate tumor removal. We describe a new technique of sellar exploration. Methods: Following the endoscopic approach to the pituitary by the otolaryngology team, pituitary masses are resected. Then, the ClearESS nasal irrigation and suction system is used by the otolaryngology team to visualize the sella ("hydroscopy"). The combination of this ClearESS technology and angled endoscopes is used to scrutinize previously inaccessible areas of the tumor bed. Results: Over 50 patients have undergone minimally invasive pituitary surgery via the endoscopic approach with postresection hydroscopy of the sella. The use of angled endoscopes in combination with the ClearESS technology greatly increased visualization of the sella, thereby facilitating complete tumor removal. There have been no complications associated with the use of hydroscopy. Conclusion: The use of angled endoscopes in conjunction with hydroscopy increases visualization of the sella. The otolaryngologist plays a critical role in this examination with manipulation of the angled endoscopes. Therefore, the role of the otolaryngologist is extended beyond the approach to the pituitary.
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