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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05082402
Other study ID # STU00215189
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date August 17, 2021
Est. completion date December 31, 2024

Study information

Verified date March 2024
Source Northwestern University
Contact Arnold Nadel
Phone 224-436-3677
Email arnold.nadel@northwestern.edu
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study aims to determine whether changes in retinal vasculature seen on SS-OCTA can be correlated to degree of cardiovascular disease as measured by carotid duplex ultrasonography.


Description:

The study's primary objective is to determine whether measures taken from SS-OCTA, color fundus photography, and retinal exams can correlate with and predict the presence/degree of carotid occlusive disease as determined by carotid duplex ultrasonography by examining the following parameters: retinal vessel caliber, retinal vessel density, retinal vessel perfusion, retinal vessel tortuosity, presence of Hollenhorst or other plaques, and/or areas of ischemia.


Recruitment information / eligibility

Status Recruiting
Enrollment 50
Est. completion date December 31, 2024
Est. primary completion date December 31, 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria: - Subjects between 18 and 80 years of age. - No known prior history of retinal disease. - Able to participate in a clinical eye examination setting. - Able to consent. - Subjects receiving standard of care carotid duplex ultrasounds. Exclusion Criteria: - Known ophthalmologic disease (e.g. glaucoma, macular degeneration, ocular injury) other than corrected refractive error. - Lack of capacity to provide informed consent. - Subjects younger than 18 years of age or older than 80 years of age. - History of stroke or acute loss of vision. - Unable to participate in a clinical eye examination setting.

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
Swept Source Optical Coherence Tomography Angiography
The PLEX Elite 9000 is an FDA cleared research device for use in ocular imaging obtained by Northwestern University by way of a purchase agreement with the manufacturer, Carl Zeiss Meditec, Inc. It is currently unavailable outside of participation in the ARI Network, a cloudbased storage and image processing platform using deidentified information shared between academic institutions. The ARI Network is managed by a group of physicians and scientists from around the world that are working to better understand eye diseases.

Locations

Country Name City State
United States Northwestern University/Northwestern Medical Group, Department of Ophthalmology Chicago Illinois

Sponsors (1)

Lead Sponsor Collaborator
Northwestern University

Country where clinical trial is conducted

United States, 

References & Publications (20)

Cade WT. Diabetes-related microvascular and macrovascular diseases in the physical therapy setting. Phys Ther. 2008 Nov;88(11):1322-35. doi: 10.2522/ptj.20080008. Epub 2008 Sep 18. — View Citation

Cheung N, Bluemke DA, Klein R, Sharrett AR, Islam FM, Cotch MF, Klein BE, Criqui MH, Wong TY. Retinal arteriolar narrowing and left ventricular remodeling: the multi-ethnic study of atherosclerosis. J Am Coll Cardiol. 2007 Jul 3;50(1):48-55. doi: 10.1016/j.jacc.2007.03.029. Epub 2007 Jun 18. — View Citation

Climie RE, van Sloten TT, Bruno RM, Taddei S, Empana JP, Stehouwer CDA, Sharman JE, Boutouyrie P, Laurent S. Macrovasculature and Microvasculature at the Crossroads Between Type 2 Diabetes Mellitus and Hypertension. Hypertension. 2019 Jun;73(6):1138-1149. doi: 10.1161/HYPERTENSIONAHA.118.11769. No abstract available. — View Citation

Heitmar R, Cubbidge RP, Lip GY, Gherghel D, Blann AD. Altered blood vessel responses in the eye and finger in coronary artery disease. Invest Ophthalmol Vis Sci. 2011 Aug 3;52(9):6199-205. doi: 10.1167/iovs.10-6628. — View Citation

Kadian-Dodov D, Papolos A, Olin JW. Diagnostic utility of carotid artery duplex ultrasonography in the evaluation of syncope: a good test ordered for the wrong reason. Eur Heart J Cardiovasc Imaging. 2015 Jun;16(6):621-5. doi: 10.1093/ehjci/jeu315. Epub 2015 Feb 10. — View Citation

Lahme L, Marchiori E, Panuccio G, Nelis P, Schubert F, Mihailovic N, Torsello G, Eter N, Alnawaiseh M. Changes in retinal flow density measured by optical coherence tomography angiography in patients with carotid artery stenosis after carotid endarterectomy. Sci Rep. 2018 Nov 21;8(1):17161. doi: 10.1038/s41598-018-35556-4. — View Citation

Liew G, Mitchell P, Chiha J, Plant AJH, White A, Joachim N, Wang S, Burlutsky G, Kovoor P, Thiagalingam A, Gopinath B. Retinal microvascular changes in microvascular angina: Findings from the Australian Heart Eye Study. Microcirculation. 2019 Aug;26(6):e12536. doi: 10.1111/micc.12536. Epub 2019 Mar 20. — View Citation

Liew G, Wang JJ, Mitchell P, Wong TY. Retinal vascular imaging: a new tool in microvascular disease research. Circ Cardiovasc Imaging. 2008 Sep;1(2):156-61. doi: 10.1161/CIRCIMAGING.108.784876. — View Citation

McClintic BR, McClintic JI, Bisognano JD, Block RC. The relationship between retinal microvascular abnormalities and coronary heart disease: a review. Am J Med. 2010 Apr;123(4):374.e1-7. doi: 10.1016/j.amjmed.2009.05.030. — View Citation

Michelson EL, Morganroth J, Nichols CW, MacVaugh H 3rd. Retinal arteriolar changes as an indicator of coronary artery disease. Arch Intern Med. 1979 Oct;139(10):1139-41. — View Citation

Murray CSG, Nahar T, Kalashyan H, Becher H, Nanda NC. Ultrasound assessment of carotid arteries: Current concepts, methodologies, diagnostic criteria, and technological advancements. Echocardiography. 2018 Dec;35(12):2079-2091. doi: 10.1111/echo.14197. — View Citation

Phan K, Mitchell P, Liew G, Plant AJ, Wang SB, Au C, Chiha J, Kovoor P, Thiagalingam A, Burlutsky G, Gopinath B. Association between Retinal Arteriolar and Venule Calibre with Prevalent Heart Failure: A Cross-Sectional Study. PLoS One. 2015 Dec 11;10(12):e0144850. doi: 10.1371/journal.pone.0144850. eCollection 2015. — View Citation

Tabatabaee A, Asharin MR, Dehghan MH, Pourbehi MR, Nasiri-Ahmadabadi M, Assadi M. Retinal vessel abnormalities predict coronary artery diseases. Perfusion. 2013 May;28(3):232-7. doi: 10.1177/0267659112473173. Epub 2013 Jan 15. — View Citation

Wang J, Jiang J, Zhang Y, Qian YW, Zhang JF, Wang ZL. Retinal and choroidal vascular changes in coronary heart disease: an optical coherence tomography angiography study. Biomed Opt Express. 2019 Mar 4;10(4):1532-1544. doi: 10.1364/BOE.10.001532. eCollection 2019 Apr 1. — View Citation

Wang L, Wong TY, Sharrett AR, Klein R, Folsom AR, Jerosch-Herold M. Relationship between retinal arteriolar narrowing and myocardial perfusion: multi-ethnic study of atherosclerosis. Hypertension. 2008 Jan;51(1):119-26. doi: 10.1161/HYPERTENSIONAHA.107.098343. Epub 2007 Nov 12. — View Citation

Wang SB, Mitchell P, Liew G, Wong TY, Phan K, Thiagalingam A, Joachim N, Burlutsky G, Gopinath B. A spectrum of retinal vasculature measures and coronary artery disease. Atherosclerosis. 2018 Jan;268:215-224. doi: 10.1016/j.atherosclerosis.2017.10.008. Epub 2017 Oct 10. — View Citation

Wang SB, Mitchell P, Plant AJ, Phan K, Liew G, Thiagalingam A, Burlutsky G, Gopinath B. Metabolic syndrome and retinal microvascular calibre in a high cardiovascular disease risk cohort. Br J Ophthalmol. 2016 Aug;100(8):1041-6. doi: 10.1136/bjophthalmol-2015-307637. Epub 2015 Nov 3. — View Citation

Wong TY, Cheung N, Islam FM, Klein R, Criqui MH, Cotch MF, Carr JJ, Klein BE, Sharrett AR. Relation of retinopathy to coronary artery calcification: the multi-ethnic study of atherosclerosis. Am J Epidemiol. 2008 Jan 1;167(1):51-8. doi: 10.1093/aje/kwm256. Epub 2007 Sep 24. — View Citation

Wong TY, Klein R, Klein BE, Tielsch JM, Hubbard L, Nieto FJ. Retinal microvascular abnormalities and their relationship with hypertension, cardiovascular disease, and mortality. Surv Ophthalmol. 2001 Jul-Aug;46(1):59-80. doi: 10.1016/s0039-6257(01)00234-x. — View Citation

Zhao Y, Yang K, Wang F, Liang Y, Peng Y, Shen R, Wong T, Wang N. Associations between metabolic syndrome and syndrome components and retinal microvascular signs in a rural Chinese population: the Handan Eye Study. Graefes Arch Clin Exp Ophthalmol. 2012 Dec;250(12):1755-63. doi: 10.1007/s00417-012-2109-2. Epub 2012 Sep 5. — View Citation

* Note: There are 20 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Correlation with and prediction of the presence/degree of carotid occlusive disease as determined by carotid duplex ultrasonography Determining whether measures taken from SS-OCTA, color fundus photography, and retinal exams can correlate with and predict the presence/degree of carotid occlusive disease as determined by carotid duplex ultrasonography by examining the following parameters: retinal vessel caliber, retinal vessel density, retinal vessel perfusion, retinal vessel tortuosity, presence of Hellenhorst or other plaques, and/or areas of ischemia. 2 hours
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