Non-invasive Measurement of Hemoglobin in Retinal Arteries
NCT ID: NCT01025011
Last Updated: 2009-12-03
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
UNKNOWN
100 participants
OBSERVATIONAL
2008-03-31
2010-06-30
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Related Clinical Trials
Explore similar clinical trials based on study characteristics and research focus.
Prediction of Progression of Retinal Ischemia in Diabetes
NCT05581225
10-year Progression of Diabetic Retinopathy: Identification of Signs and Surrogate Outcomes
NCT04650165
High Resolution Optical Coherence Tomography
NCT05130385
Retinal Imaging by Adaptive Optics in Healthy Eyes and During Retinal and General Diseases
NCT01546181
Ultra-wide-field Fluorescein Angiography in Patients With Retinal Vein Occlusion
NCT04075695
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
The purpose of this study is to test a new non-invasive tool to measure hemoglobin in retinal arteries. Healthy volunteers from the eye clinic and pregnant otherwise healthy patients of the gynecological department of the Triemli Hospital, Zurich, as well as anemic gynecological patients that show up for a check-up are included.
Hemoglobin will be quantified by a blood draw of a cubital vein. Using a Fundus Camera (Nidek AFC-230) pictures of the fundus will be taken from each study patient. Afterwards the study investigator selects a retinal artery of interest which will be used for measuring the hemoglobin concentration. Intensity of the green channel of the camera chip is determined with the aid of the law of Lambert-Beer.
Absolute Hemoglobin concentration is calculated in relation to the vessel volume.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
healthy volunteers, anemic patients
healthy volunteers from the eye and gynecology department pregnant patients with anemia
Fundus photography, cubital blood draw
blood draw from a cubital vein to measure hemoglobin concentration taking a fundus photography with a Nidek AFC-230, no pupil dilation needed
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
Fundus photography, cubital blood draw
blood draw from a cubital vein to measure hemoglobin concentration taking a fundus photography with a Nidek AFC-230, no pupil dilation needed
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
* pregnant patients from the Triemli Hospital that came for a routine check up
* anemic patients of the same dept with various gynecological tumors
Exclusion Criteria
* poor fundus picture quality due to fixtion problems or too small pupil or media intransparency
* not willing to participate in a study
18 Years
90 Years
ALL
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Triemli Hospital
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Stadtpital Triemli (Triemli Hospital)
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Yves Robert, Prof MD
Role: PRINCIPAL_INVESTIGATOR
Triemli Hospital
Locations
Explore where the study is taking place and check the recruitment status at each participating site.
Stadtpital Zürich, Triemli Hospital
Zurich, Canton of Zurich, Switzerland
Countries
Review the countries where the study has at least one active or historical site.
Central Contacts
Reach out to these primary contacts for questions about participation or study logistics.
Facility Contacts
Find local site contact details for specific facilities participating in the trial.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
D20028132
Identifier Type: -
Identifier Source: org_study_id
More Related Trials
Additional clinical trials that may be relevant based on similarity analysis.