Ruiz OAA, De JMF, Galindo AJ, Alva ANV, Tapia VR, Lázaro MOEJ

Language: Spanish
References: 11
Page: 520-524
PDF size: 229.14 Kb.

ABSTRACT

Introduction: intracranial hypertension is a syndrome characterized by a sustained increase in intracranial pressure (ICP) above 20 millimeters of mercury for > 5-10 minutes. Tools that measure intracranial pressure are necessary to provide timely treatment and improve the length of stay in the intensive care unit as well as mortality. Objective: correlate the diameter of the optic nerve sheath measured ultrasonographically against the standard method; cerebral intraparenchymal catheter, as predictors of intracranial hypertension. Material and methods: prospective, longitudinal, experimental and analytical study, in patients over 16 years of age of both sexes, who entered the neurointensive care unit. Measurements of the optic nerve sheath were performed and an intraparenchymal cerebral catheter was placed by intensivists in eight patients, measurements being taken every 4 hours, having a total of 181 measurements. Results: a correlation was carried out by the standard method, between DVNO vs PIC, scatter graph, where it was obtained R² = 0.89, p = 0.0001, being a strong correlation. Finally, a Bland-Altman plot was plotted to compare the metho d under test (DVNO) with the reference standard (PIC), obtaining a Bias (mean difference) -0.188 ± -0.53, lower limit -1.231 upper limit 0.8537. Showing a strong correlation. Conclusions: the measurement of the optic nerve sheath is equivalent to the measurement of intracerebral pressure through the use of intraparenchymal cerebral catheter, therefore we can have both methods to measure intracranial pressure and guide our medical management.

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