Measurement of the Oxygen Saturation in the Retinal Vessels With Oxymap

NCT02318641 | Unknown

• 1 other identifier: H26-046
• Study Type: observational
• Target: 300
• Locations: 1 country
• Sites: 1

Brief Summary

Retinal oximetry can be measured with newly developed Oxymap (Oxymap ehf, Reykjavik, Iceland). Briefly, the device simultaneously acquires digital images at two wavelengths and automatically tracks retinal vessels on both images. Retinal vessel oxygen saturation is estimated by spectrophotometric analysis of light reflected from retinal vessels and from the immediately surrounding retina. Oxygen saturation measurements are made on major temporal arteries and veins. Briefly, the first and second degree vessels are used, with the addition of third degree vessels in images where peripapillary haemorrhage prevented analysis close to the optic disc. Vessel segments chosen for analysis are used consistently for consecutive measurements in the same retina.

Conditions

Chorioretinal Disorders in Diseases Classified Elsewhere

Keywords

oxygen consumption; retinal oximetry

Outcome Measures

Primary Outcomes (1)

• Change of retinal oxygen saturation from baseline at 6 months

  Six months.

Interventions

oximetry DEVICE

Retinal oximetry will be performed with Oxymap.

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Healthy eyes and eyes with various chorioretinal disease.

You may qualify if:

• Healthy eyes and eyes with various chorioretinal diseases, including diabetic retinopathy, retinal vein occlusion, epiretinal membrane, macular hole, inherited chorioretinal diseases, glaucoma, retinal detachment, etc.

You may not qualify if:

• Eye with medial opacity.

Sponsors & Collaborators

• Kagawa University: lead

Study Sites (1)

Kagawa University Faculty of Medicine

Hiragi, Kagawa-ken, 761-0793, Japan

RECRUITING

MeSH Terms

Interventions

Oximetry

Intervention Hierarchy (Ancestors)

Blood Gas Analysis; Blood Chemical Analysis; Clinical Chemistry Tests; Clinical Laboratory Techniques; Diagnostic Techniques and Procedures; Diagnosis; Heart Function Tests; Diagnostic Techniques, Cardiovascular; Respiratory Function Tests; Diagnostic Techniques, Respiratory System; Investigative Techniques

Study Officials

• AKITAKA TSUJIKAWA, MD

  Kagawa Univerisity Faculty of Medicine

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Chika Akuta

CONTACT

+81878912211; kaomie@med.kagawa-u.ac.jp

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor and Chairman

Study Record Dates

• First Submitted: December 12, 2014
• First Posted: December 17, 2014
• Study Start: December 1, 2014
• Primary Completion: December 1, 2018
• Study Completion: December 1, 2018
• Last Updated: March 7, 2018

Record last verified: 2018-03

Locations

JP (1)