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Optic Nerve Sheath Diameter for Volume Status Prediction in Severe Preeclampsia

NCT04367519 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 54

Last updated 2020-07-16

No results posted yet for this study

Summary

A quick, non-invasive, bedside test to assess fluid status of patients with severe preeclampsia would be very helpful to ICU clinicians severe preeclampsia is associated with an increase in extravascular lung water (EVLW), which can be identified by lung ultrasound before appearance of clinical signs of pulmonary edema but this technique still requires several measurements and could be time consuming.

Optic ultrasound is also a safe and repeatable diagnostic tool, which is even quicker and simpler to perform than lung ultrasound. Increased ONSD is associated with increased ICP and it can indirectly reflect the state of intracranial edema that could be a part of generalized edema.

More data on the correlation between ONSD and markers of fluid status (EVLW by ultrasound) are needed before ONSD measurements can be recommended as a guide to fluid management in preeclampsia.

Conditions

  • Pre-Eclampsia

Interventions

DIAGNOSTIC_TEST

Ultrasound measurement of Optic nerve sheath diameter

Ocular ultrasonography was performed with the patients placed in supine position with closed eyes. A layer of ultrasound gel was applied over the closed upper eyelid and the liner high frequency probe 7 - 12 MHz of SonoSite M-Turbo ultrasound machine was placed on the temporal area of the eyelid with the hand holding it resting on the forehead of the patient. The probe is then adjusted to a suitable angle in order to display the entry of the optic nerve into the globe. ONSD is then measured 3mm behind the globe in the transverse plane perpendicular to the optic nerve. For each eye one measurement will be made and the reported ONSD corresponds to the mean of the two values obtained for each patient. it was performed for all enrolled parturients within 24 hour before delivery and at 24 hour post-delivery.

Sponsors & Collaborators

  • Zagazig University

    lead OTHER_GOV

Principal Investigators

  • Sherif M Mowafy, MD · Anesthesia and Surgical Intensive Care Department, Faculty of Medicine, Zagazig University

  • Mohamed I Elsayed, MD · Anesthesia and Surgical Intensive Care Department, Faculty of Medicine, Zagazig University

Eligibility

Min Age
21 Years
Max Age
45 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-10-01
Primary Completion
2020-03-30
Completion
2020-04-15

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04367519 on ClinicalTrials.gov