Spectral-domain Optical Coherence Tomography Findings in Retinal Vessel Occlusion

Retinal Ischemia Clinical Trial

Official title:

Spectral-domain Optical Coherence Tomography Findings in Retinal Vessel Occlusion - A Pilot Study of Detecting Ischemia in OCT

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03061526
• Other study ID #: EK 417102016
• Status: Recruiting
• Start date: May 1, 2017
• Est. completion date: December 2023

Study information

• Verified date: March 2023
• Source: Technische Universität Dresden
• Contact: Egbert Matthé, MD
• Phone: +493514583381
• Email: egbert.matthe[@]uniklinikum-dresden.de
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

Retinal vessel occlusions might lead to ischemia of the inner retina, more severe so in artery occlusions. Intracellular edema may develop and decrease transparency of those layers, showing retinal edema. In spectral domain optical coherence tomography (SD-OCT) retinal reflectivity changes as a result of retinal edema. The investigators examine the reflectivity changes of different retinal layers between healthy eyes and eyes with retinal artery occlusion and ischemic or non-ischemic vein occlusions. Aim of the study is to evaluate whether those changes can be used to measure the level of ischemia in the inner retina.

Description:

Several studies tried to classify retinal ischemia due to retinal artery or vein occlusion into different grades. In some cases prognosis is dependent on grade of severity, especially in cases of retinal vein occlusion. State of the art to Diagnose the severity of retinal ischemia is lfuorescein angiography. However, this technique is invasive and might cause Problems like anaphylactic shock. Optical coherence tomography is a non-invasive technique, but up to now there is no standardized method to quantify the grade of severity of retinal ischemia in such conditions like retinal vessel occlusion. The study hope to find criteria by which such a classification can be constructed.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 100
• Est. completion date: December 2023
• Est. primary completion date: December 2023
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• acute Retinal vessel occlusion on one eye
• healthy contralateral eye
• examined with spectral Domain optical coherence tomography

Exclusion Criteria:

• retinal occlusion older than 1 week
• OCT Image not obtainable/missing

Related Conditions & MeSH terms

• Ischemia
• Retinal Ischemia

Intervention

Other:
• optical coherence tomography
measurement of reflectivity in different retinal layers based on optical coherence tomography findings

Locations

Country	Name	City	State
Germany	University Eye Hospital	Dresden

Sponsors (1)

Lead Sponsor	Collaborator
Technische Universität Dresden

Country where clinical trial is conducted

Germany, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	reflectivity	optical density of different retinal layers	December 2017