Intrathecally applied fluorescein is used to achieve intraoperative visualization of CSF leaks. This protocol describes a lumbar puncture, the application of 5% fluorescein, and intraoperative visualization using a fully digital microscope.
Weiss, N. M., Andus, I., Schneider, A., Langner, S., Schröder, S., Schraven, S. P., Mlynski, R. Intrathecal Application of a Fluorescent Dye for the Identification of Cerebrospinal Fluid Leaks in Cochlear Malformation. J. Vis. Exp. (156), e60795, doi:10.3791/60795 (2020).