Point-of-care ultrasound of optic nerve sheath diameter in suspected hypertensive emergency*
- Conditions
- swelling of the optic discvery high bloodpressure1000796310057166
- Registration Number
- NL-OMON56796
- Lead Sponsor
- eids Universitair Medisch Centrum
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Pending
- Sex
- Not specified
- Target Recruitment
- 400
Inclusion Criteria
>= 18 years old
suspected hypertensive emergency
Exclusion Criteria
- Patients with preexisting optic nerve head changes such as glaucoma,
pre-existing retinal artery/vein occlusions or any other condition that makes
assessment of the fundi impossible.
- Primary neurological cause of hypertension: ischemic cerebrovascular incident
Study & Design
- Study Type
- Observational non invasive
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method <p>The negative predictive value of ultrasonography of the ONSD for the diagnosis<br /><br>papilledema (grade 4 hypertensive retinopathy).</p><br>
- Secondary Outcome Measures
Name Time Method <p>- Diagnostic characteristics of the ultrasonographic presence of bulging<br /><br>of the optic nerve head, crescent sign and/or decrease of ONSD with lateral eye<br /><br>movement for the diagnosis of papilledema.<br /><br>- Diagnostic characteristics of ultrasonography of the ONSD for the diagnosis<br /><br>of hypertensive encephalopathy<br /><br>- Diagnostic characteristics of ultrasonography of the ONSD for the need of<br /><br>intravenously administered rapid blood lowering medications<br /><br>- To evaluate the role of the ONSD measurement in the assessment of patients<br /><br>with suspected hypertensive emergency<br /><br>- The agreement between funduscopy findings and non-mydriatic ocular fundus<br /><br>photography findings </p><br>