FIGURE 1.

Neuroendoscopy and CSF collection. A, Schematic representation of the germinal zone localization (in blue) around the ventricles (axial view) that comprises the ventricular and subventricular zones where neural stem cells are found (box). B, Computed tomography axial brain images depicting the bleeding area close to the head of the caudate nucleus and the presence of blood inside the ventricular system (arrows) in one of the cases. C, Recovery of hemorrhagic CSF and irrigation fluid from preterm infants with IVH grade IV. Images of the surgical intervention by neuroendoscopy: preparation (i); neuroendoscopic imaging of bleeding area before (ii) and after (iii) irrigation, and, before (iv) and after (v) sealing; collection of irrigation fluid (vi)