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Ocular findings and blood flow in patients with Takayasu arteritis: a cross-sectional study
Fehim Esen1, Rabia Ergelen2, Fatma Alibaz-Öner3
1Department of Ophthalmology, Istanbul Medeniyet University School of Medicine, Istanbul, Turkey fehimesen@yahoo.com.
Insights
Takayasu arteritis (TAK) patients show reduced ocular blood flow, particularly in the ophthalmic artery and central retinal artery. Radial artery pulselessness may indicate decreased ocular perfusion in TAK.
Area of Science:
- Ophthalmology
- Rheumatology
- Vascular Medicine
Background:
- Takayasu arteritis (TAK) is a chronic granulomatous vasculitis affecting large arteries.
- Ocular complications, including ischemic events, can arise from TAK.
- Understanding ocular blood flow in TAK is crucial for managing visual health.
Purpose of the Study:
- To document ocular complications in TAK patients.
- To evaluate ocular blood flow using Doppler ultrasonography.
- To correlate ocular findings with systemic clinical features of TAK.
Main Methods:
- Included 65 TAK patients and 30 healthy controls.
- Conducted detailed rheumatological and ophthalmological evaluations.
- Assessed ocular blood flow in the ophthalmic artery (OA) and central retinal artery (CRA) via color Doppler ultrasonography.
Main Results:
- Hypertensive retinopathy (33.9%) and Takayasu retinopathy (6.2%) were observed.
- No patients experienced permanent visual loss from ischemic or neovascular complications.
- TAK patients exhibited increased resistivity index (RI) in OA (p=0.002) and CRA (p=0.001).
- Radial artery pulselessness correlated with higher OA RI (p=0.031).
Conclusions:
- This study reports a low prevalence of Takayasu retinopathy and no permanent visual loss.
- Radial artery pulselessness is a novel predictor of reduced ipsilateral ocular perfusion.
- Improved TAK management may be contributing to decreased ocular complication rates.
Background/Aims:
Takayasu arteritis (TAK) is a chronic granulomatous vasculitis that can lead to ischaemic ocular complications. We aimed to document ocular complications, ocular blood flow and the association of them with systemic clinical findings in TAK.
Material And Methods:
We included 65 patients with TAK (60 female, 5 male, mean age: 41.8±12.9 years) and 30 healthy subjects (30 female, mean age: 39.0±7.5 years) in this study. All of the patients had a detailed rheumatological and ophthalmological evaluation. Ocular blood flow in ophthalmic artery (OA) and central retinal artery (CRA) was evaluated with colour Doppler ultrasonography.
Results:
Hypertensive retinopathy was observed in 33.9%, and Takayasu retinopathy was observed in 6.2% of patients. Posterior subcapsular cataracts or a history of cataract surgery was seen in 15.4% of the cases. None of the patients experienced visual loss due to ischaemic or neovascular complications. Patients with TAK had increased resistivity index (RI) in ophthalmic artery (0.75 vs 0.66, p=0.002) and CRA (0.75 vs 0.67, p=0.001). Patients with hypertensive retinopathy had significantly longer disease duration (p=0.016). Ophthalmic artery RI was significantly higher in patients with ipsilateral radial artery pulselessness compared with patients without (0.77 vs 0.68, p=0.031).
Conclusion:
This study reported the lowest prevalence of Takayasu retinopathy and is the only series without permanent visual loss. We documented for the first time that radial artery pulselessness can predict reduction of ipsilateral ocular perfusion. We believe that better management of TAK with current medications reduced ocular complication rates.
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