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Impaired retinal microcirculation in multiple sclerosis.

Hong Jiang1, Silvia Delgado2, Jia Tan3

  • 1Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA/Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA h.jiang@med.miami.edu.

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Summary
This summary is machine-generated.

Retinal blood flow is impaired in patients with relapsing remitting multiple sclerosis (RRMS). This study found significantly lower retinal blood flow velocity and volume in RRMS patients, indicating microvascular dysfunction.

Keywords:
Multiple sclerosisblood flow velocityblood flow volumeretinal function imagerretinal microcirculationretinal nerve fiber layer

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Area of Science:

  • Ophthalmology
  • Neurology
  • Medical Imaging

Background:

  • The retina's microvasculature is affected in multiple sclerosis (MS).
  • Ocular structures allow for quantitative analysis of retinal microvasculature.

Purpose of the Study:

  • To investigate if retinal blood flow velocity and volume are impaired in patients with relapsing remitting multiple sclerosis (RRMS).

Main Methods:

  • 17 RRMS patients and 17 healthy controls were assessed.
  • A retinal function imager measured retinal arteriole and venule blood flow velocity.
  • Total perifoveal blood flow volume was calculated.

Main Results:

  • RRMS patients exhibited significantly lower retinal arteriole and venule blood flow velocities compared to healthy subjects (p=0.01).
  • Total perifoveal blood flow volume in arterioles (p=0.02) and venules (p=0.04) was also significantly reduced in RRMS patients.
  • These findings suggest impaired retinal microcirculation in MS.

Conclusions:

  • Impaired retinal microcirculation in RRMS patients indicates underlying microvascular dysfunction associated with MS.
  • Retinal imaging may serve as a valuable tool for assessing MS-related changes.