Utilidad de la ecografía de la vaina del nervio óptico en pacientes con cese de flujo cerebral

Optic nerve sheath diameter (ONSD) ultrasound has proven to be a useful tool for the detection of intracranial hypertension (IH). The ONSD values, in patients with cessation of cerebral blood flow (CCBF), has not been clarified yet. Objective Establish an association between ONSD and CCBF in neurocritical patients admitted to an ICU. Patients and methods Cross-sectional study of patients admitted in a third level ICU, between April 2017 and April 2018, with neurological pathology. ONSD ultrasound was performed in the first 24 hours and as the patient was diagnosed of CCBF. The ONSD values of patients with and without diagnosis of CCBF were compared. Results 99 patients were included, 29 of whom showed CCBF in transcranial Doppler. The ONSD measurement did not demonstrate significant differences between both groups, 6,59 ± 0,75 in the group with CCBF and 6,39 ± 0,56 in the group without CCBF p=0.141. Conclusion In our study, ONSD values capable of recognizing CCBF were not identified.