The sellar barrier’s: an important new concept in pituitary surgery.

The sellar barrier's concept was created by our team in Tucumán in 2019. There are currently 3 well-defined subtypes: strong, weak and mixed. Published case series studies indicate that there is a strong correlation between radiological, intraoperative findings and risk of cerebrospinal fluid (CSF) leakage. Patients with weak sellar barrier have more risk of intraoperative CSF leak. The strong sellar barrier is a protective factor for intraoperative CSF leak. The sellar barrier's concept is useful for clinical-surgical practice and for the physician-patient relationship.