Fluid Responsiveness, Optic Nerve Sheath Diameter, Shock
Conditions
Brief summary
The aim of the study to examine Optic Nerve Sheath Diameter measurement for prediction of fluid responsiveness in hemodynamically unstable patients
Interventions
DEVICEOptic Nerve Sheath Diameter (ONSD) measurement by ultrasound
ONSD measurements will be performed in the supine patient. Ultrasound gel will be applied over the closed upper eyelid. The ultrasound probe will be placed on the temporal area of the eyelid. Then the probe will be angled in order to display the entry of the optic nerve into the globe. ONSD will be measured 3 mm behind the globe in the transverse plane perpendicular to the optic nerve. For each optic nerve three measurements will be made. The ONSD corresponds to the mean of the six values which will be obtained from each patient (three measurements for each eye).
Sponsors
Tanta University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Inclusion criteria
* Patients on mechanical ventilation * 18 years or older * patients developing hypotension (Mean arterial blood pressure) \<65 mmHg
Exclusion criteria
* Patients with Spontaneously breathing activity. * Patients with a history of intracranial disease e.g. (stroke, TBI, causes of increased intracranial pressure). * local cause in the eye as (Glaucoma, Single eye) * Need for high PEEP. * Known history of cardiac disease. * Organ/s failure at admission
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The cut-off value of optic nerve sheath diameter (ONSD) for prediction of fluid responsiveness | first day |
Secondary
| Measure | Time frame |
|---|---|
| Correlation between Stroke Volume Variation (by electrical cardiometry) and ONSD | first day |
Contacts
Primary ContactHadeel Ibraheim Elsagheir, MBBCH
Outcome results
None listed