Optic Nerve Sheath Diameter Measurement to Identify High-Risk Patients for Spinal Ischemia after Endovascular Thoracoabdominal Aortic Aneurysm Repair

Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging
Michael ErtlKarin Pfister

Abstract

Thoracic endovascular aortic repair (TEVAR) is associated with a reasonable risk of spinal ischemia. As cerebrospinal fluid pressure (CSFP) is correlated with the rate of paraplegia, a non-invasive method to estimate CSFP could help to estimate the patient's individual risk and guide the therapeutic approach. The quantification of the optic nerve sheath diameter (ONSD) using ocular sonography (OS) could be a suitable technique and was examined in the present study. 28 patients with TEVAR were included. Five consecutive measurements of the ONSD were performed in each patient. The first before the intervention ("baseline"), the next immediately postinterventional at the intensive care unit (post1), measurements 3, 4 (post2, post3) on day 1 and 2 after the intervention and number 5 (post4) before discharge. Statistical analysis was done using the Wilcoxon-test. A p-value < 0.05 was considered statistically significant. A significant increase between baseline and post1-measurements (right eye: p = 0.006; left eye: p = 0.02) could be detected. A significant decrease was detected between post1 and post3 (right eye: p = 0.02; left eye: p < 0.01). A group of 5 patients had an additional increase of ONSD from post1 to post2, one of thes...Continue Reading

References

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Citations

Aug 23, 2016·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Michael ErtlKarin Pfister
Dec 17, 2016·European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies·M ErtlF Schlachetzki
Oct 28, 2019·Transplantation·Benedict L PhillipsMartin Drage
Aug 2, 2019·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Piergiorgio LochnerChiara Robba

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