Arteaga FCB, Ortega SJ, Urías RVEG, Chacón UEJ

Language: Spanish
References: 9
Page: 166-171
PDF size: 271.69 Kb.

ABSTRACT

Background: Preeclampsia-eclampsia is a serious illness associated with maternal complications, including neurological ones. In cases with increased intracranial pressure, the diameter of the optic nerve sheath increases due to its close association with cerebrospinal fluid. Transorbital ultrasound has shown to correlate with increased intracranial pressure. In 20 % of the patients with preeclampsia, the diameter of the optic nerve sheath reaches values above 20 mmHg, consistent with the intracranial pressure. Material and methods: Transversal, multicenter study. Three groups of patients: 1) healthy women, 2) healthy pregnant women, and 3) pregnant women with preeclampsia-eclampsia. The diameter was measured 3 mm behind the eyeball and with an axis perpendicular to the optic nerve. Three measurements were made for each eye, averaging them to minimize variability of the measurement. Results: 60 patients, 20 in each group. The diameter of the optic nerve sheath was higher in group 3 for both eyes, with statistical significance (p ‹ 0.05); 20% of right eyes and 25% of left eyes had a diameter › 5.0 mm. The mean for the right eye in group 1 was 3.5 ± 0.5 mm, versus 3.7 ± 0.7 mm in group 2, versus 4.3 ± 0.9 mm in group 3; for the left eye, 3.5 ± 0.6 mm versus 3.7 ± 0.7 mm versus 4.5 ± 0.8 mm for groups 1, 2 and 3, respectively. Conclusion: Patients in group 3 had larger optic nerve sheath diameters compared with groups 1 and 2. Measurement of the diameter of the optic nerve by transorbital ultrasound appears as a promising new, economical, accessible and non-invasive tool to discard intracranial pressure elevation in patients with preeclampsia-eclampsia.

REFERENCES

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