Inversion of Asymmetric Vortex Vein Dilatation in Pachychoroid Spectrum Diseases
Hidetaka Matsumoto1, Shoji Kishi1, Junki Hoshino1
1Department of Ophthalmology, Gunma University Graduate School of Medicine, Maebashi, Japan.
Ophthalmology Science
|June 3, 2024
Summary
In pachychoroid diseases, blood can flow backward through vortex veins via anastomoses. This can cause contralateral vortex veins to dilate, sometimes more than the original congested vein.
Area of Science:
- Ophthalmology
- Vascular Biology
- Choroidal Diseases
Background:
- Pachychoroid spectrum diseases involve vortex vein congestion.
- Compensatory drainage routes are difficult to identify.
- Retrograde pulsatile vortex venous flow is a key indicator.
Purpose of the Study:
- Investigate morphological patterns of vortex veins.
- Analyze eyes with retrograde pulsatile vortex venous flow.
- Understand venous drainage in pachychoroid diseases.
Main Methods:
- Retrospective observational case series.
- Analysis of 689 eyes with central serous chorioretinopathy, pachychoroid neovasculopathy, or polypoidal choroidal vasculopathy.
- Multimodal imaging including ICGA and en face OCT.
Main Results:
- Identified 22 eyes with retrograde pulsatile vortex venous flow.
- Observed intervortex venous anastomoses connecting superotemporal and inferotemporal vortex veins.
- Found contralateral vortex vein dilatation, often exceeding primary congestion.
Conclusions:
- Congested venous blood can drain contralaterally via intervortex anastomoses.
- Overloaded contralateral vortex veins may become more dilated.
- This can lead to inversion of asymmetric vortex vein dilatation in pachychoroid diseases.
Keywords:
Asymmetric vortex vein dilatationChoroidal congestionChoroidal venous overloadIntervortex venous anastomosisPachychoroidMore Related Videos
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