Macular Optical Coherence Tomography Findings in Patients With Syphilitic Optic Neuropathy—A Case Series and Systematic Review
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Résumé
BACKGROUND: Syphilis is a sexually or congenitally acquired infectious disease that can affect multiple organs systems, including the eye. When left undiagnosed and untreated, it can lead to significant morbidity and mortality. Syphilitic optic neuropathy can be difficult to diagnose because it can mimic many other nonsyphilitic causes of optic nerve involvement, leading to delay in treatment. Diagnosing ocular syphilis may be facilitated by assessing for specific outer retina abnormalities on macular optical coherence tomography (OCT). METHODS: This was a case series and case-based systematic review. For the case series, a retrospective chart review was conducted of all patients who presented to a tertiary university-affiliated neuro-ophthalmology practice over 6 months with undifferentiated optic neuropathy and were eventually diagnosed with syphilitic optic neuropathy. For the systematic review, OVID MEDLINE, EMBASE, and COCHRANE CENTRAL databases were searched to identify all cases of syphilitic optic neuropathy with macular OCT. The primary research outcome was the prevalence of cases with outer retinal abnormalities on OCT. RESULTS: Four cases were identified that were eligible for inclusion. The ages ranged from 27 to 62 years old, and 2 of the patients were female. On examination, vision ranged from Snellen 20/50 to hand motion; all patients had optic neuropathy, and macular OCT revealed chorioretinitis characterized by retinal pigment epithelium (RPE) excrescences. The patients subsequently underwent uveitis workup and were diagnosed with syphilis. They were treated with intravenous penicillin and showed improvement in outer retina appearance on follow-up. The systematic review consisted of 24 cases and 35 eyes with syphilitic optic neuropathy and reported macular OCT findings. Eighty-three percent (20/24) were males, and the mean age was 47.7 years (SD: 49.2). The mean visual acuity at presentation was Snellen 20/57. On fundoscopy, 25.7% (9/35) of eyes had vitritis, whereas 22.8% (8/35) had placoid chorioretinal lesions. On OCT, 45.7% (16/35) of eyes had abnormal outer retina findings, most commonly disruption of the ellipsoid zone (EZ) and/or RPE excrescences. All patients were treated with penicillin or ceftriaxone, and final mean visual acuity was Snellen 20/29. CONCLUSIONS: All 4 patients identified in the case series, and nearly half of patients with syphilitic optic neuropathy described in the literature had concurrent-specific outer retina abnormalities (disruption of EZ and/or placoid chorioretinitis in the form of RPE excrescences) seen on macular OCT. We recommend that clinicians obtain macular OCT for all patients presenting with undifferentiated optic neuropathy.
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Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,005 | 0,001 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
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