Related Experiment Video
Updated: May 29, 2026

Retinal Pigment Epithelium Transplantation in a Non-human Primate Model for Degenerative Retinal Diseases
Published on: June 14, 2021
Retinal periphlebitis in patients with multiple sclerosis
Miroslav Stamenković1, Dragana Obradović
1University Medical Center Zvezdara, Eye Clinic, Belgrade, Serbia. drmiroslavstamenkovic@gmail.com
Background/Aim:
Multiple sclerosis (MS) is an immune-mediated disorder of the central nervous system (CNS), characterized by inflammation, demyelination and axonal loss. Retinal periphlebitis (RP) is often present in MS patients with similar evolution and histopathological changes as MS lesions. The aim of this study was to analyze the presence of RP in MS patients during different clinical phases, and its connection with impairment of blood-brain barrier.
Methods:
The study included 45 patients (26 females and 19 males) with MS. Their average age was 33.2 +/- 8.1 years. There were 28 patients with relapsing-remitting (RR) form, 7 with primary progresive (PP) and 10 with secondary progressive (SP) form of MS. There were 27 patients in the relapse and 18 patients in the remission phase. The average MS duration was 7.48 +/- 1.3 years. Ophthalmological, neurological and MRI examination were performed in all the patients, as well as cerebrospinal fluid sampling. Albumin ratio and IgG index were calculated in all the patients.
Results:
There were 9 patients with RP, and 36 without it. MS duration was significantly longer in the RP group. RP was much more common in the progressive form and was not present in the remission phase of MS. Albumin ratio values were increased in the group with RP. IgG index and IgG synthesis according to Tourtellotte formula, were statistically higher in the group of patients with RP. The values of visual evoked potentials (VEP's) latency were significantly higher in the group of patients with RP.
Conclusion:
The presence of RP is a reliable indicator of MS activity and might be considered as a parameter for monitoring the disease activity and effects of the treatment.
Insights
Retinal periphlebitis (RP) is more common in progressive multiple sclerosis (MS) and indicates increased disease activity. Its presence correlates with blood-brain barrier impairment and may help monitor MS progression and treatment effectiveness.
Area of Science:
- Neuroimmunology
- Ophthalmology
- Neurology
Background:
- Multiple sclerosis (MS) is a central nervous system (CNS) disorder involving inflammation, demyelination, and axonal loss.
- Retinal periphlebitis (RP) shares histopathological similarities with MS lesions and is frequently observed in MS patients.
Purpose of the Study:
- To investigate the occurrence of RP in MS patients across different clinical phases.
- To determine the association between RP and blood-brain barrier (BBB) dysfunction in MS.
Main Methods:
- Study included 45 MS patients (26 female, 19 male) with varying MS subtypes (RR, PP, SP) and disease phases (relapse, remission).
- Evaluations included ophthalmological, neurological, and MRI examinations, cerebrospinal fluid analysis, and calculation of albumin ratio and IgG index.
Main Results:
- RP was present in 9 patients, predominantly in those with longer MS duration and progressive forms.
- Patients with RP showed elevated albumin ratio and IgG index, indicating increased BBB permeability.
- Higher visual evoked potential (VEP) latency was observed in the RP group, suggesting neurological impact.
Conclusions:
- Retinal periphlebitis (RP) serves as a reliable indicator of active multiple sclerosis (MS).
- RP can be utilized as a parameter for monitoring MS disease activity and treatment efficacy.
Related Concept Videos
Multiple Sclerosis l: Introduction
Diabetic Retinopathy
Photoreceptors and Visual Pathways
