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29
result(s) for
"Brézin, Antoine P"
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Visual acuity and visual field as a function of disease duration in patients with birdshot chorioretinitis
2024
BackgroundBirdshot chorioretinitis (BSCR) is a chronic bilateral posterior uveitis, which can affect central as well as peripheral vision. The aim of this study was to assess how visual acuity and visual field evolved over time in patients with BSCR.MethodsThis was a prospective, observational, single-centre study based on data from the CO-BIRD cohort. Patient visits were categorised based on the time elapsed since the first symptoms, and groups of patients with different disease duration were defined. The main outcome measures were the best corrected visual acuity (BCVA), the mean deviation (MD) and the standard pattern deviation (PSD).ResultsThe study included 447 Caucasian patients (181 males and 266 females), all of whom HLA-A29 carriers. From onset to 30 years of disease duration, the number of patients in each consecutive 5-year period was 237, 250, 196, 147, 78 and 32, respectively. Overall, the range of visual acuity and visual field results increased with disease duration. BCVA gradually decreased and showed a significant decline after 11–15 years after the first symptoms. Among the visual field indices, PSD significantly increased after 16–20 years, while MD showed a significant decline after 21–25 years. No major gender differences were found in visual outcomes, indicating comparable severity. The intereye correlations of MD and PSD were stronger than those of BCVA.ConclusionsBSCR resulted in a large heterogeneity of visual outcomes, which increased with time. Our data provide an overview of the visual consequences of BSCR as a function of disease duration.
Journal Article
Incidence of Nd:YAG laser capsulotomy following cataract surgery: a population-based nation-wide study – FreYAG1 study
2023
Rationale
Nd:YAG (neodymium:yttrium-aluminum-garnet) capsulotomy (
Nd:YAG-caps
) is the gold standard for the treatment of PCO (Posterior Capsule Opacification). There is a lack of real-world data about
Nd:YAG-caps
use.
Purpose
This study’s objectives were to estimate
Nd:YAG-caps
incidence in France, to describe the patient characteristics, and to analyze the time between surgeries and capsulotomies. Setting: The study was based on data extracted from the EGB database, a 1/97th sample representative of the French population. Design: observational, retrospective, cohort study using national claims data.
Methods
French adult patients who underwent
Nd:YAG-caps
between 2014 and 2017 were selected. Main outcomes were the number of patients and procedures performed and the risk factors associated with early
Nd:YAG-caps
. Results: During the study period,
Nd:YAG-caps
were performed in 8,425 patients accounting for 10,774 procedures. The extrapolation to the French population led to estimate that 253.10
3
patients had
Nd:YAG-caps
, representing 312.10
3
procedures in 2017. The mean age at
Nd:YAG-caps
was 75.1 (± 10.2) years. About 36% of patients presented at least one ocular comorbidity.
Nd:YAG-caps
was performed within 2 years after surgery in 33.0% of patients and within one year in 9.8% of patients. Patients with
Nd:YAG-caps
within the first year (OR CI95 0.721 [0.673–0.772]) or in the first two years (OR CI95 0.721 [0.673–0.772]) were younger than patients with later
Nd:YAG-caps
and had a more frequent history of treated ocular diseases (OR 1.516 and 1.178, respectively).
Conclusions
This study brought new real-world and large-scale data regarding
Nd:YAG-caps
use and gave an updated insight into the patients’ characteristics.
Journal Article
Peripapillary atrophy in patients with birdshot chorioretinitis
2025
AimsThis study aims to analyse peripapillary atrophy (PPA), its frequency, extent and relation with measures of visual function in patients with birdshot chorioretinitis (BSCR).MethodsPatients of the single-centre prospective COhort of patients with BIRDshot chorioretinitis (ClinicalTrials.gov Identifier: NCT05153057) were included. The areas of the optic nerve head (ONH) and PPA were measured on red–green and autofluorescence fundus images acquired by ultrawidefield retinal photography. The main outcome measure was the frequency of PPA. Correlations between the PPA/ONH ratio and disease duration, age, best corrected visual acuity (BCVA) and visual field results (mean deviation (MD) and the pattern SD (PSD)—Humphrey perimeter 30–2) were evaluated using the Spearman coefficient.ResultsA total of 752 eyes from 384 patients (mean age 62.4±12.1 years) were included. The median disease duration was 13.0 (7.0–19.0) years. PPA was observed in 717 (95.4%) eyes. The mean PPA/ONH ratio was 2.9±2.2 on red–green images, 3.1±2.2 on autofluorescence, and these measures were highly correlated (R=0.95, p<0.0001). The ratio of PPA/ONH increased with the duration of the disease (R=0.57, p<0.0001) from 1.6±0.6 in the 0–5 years group to 5.2±2.9 after 25 years and with age (R=0.51, p<0.0001). PPA was also associated with a worse BCVA (R=−0.42, p<0.0001) and worse visual field results: MD (R=−0.41, p<0.0001), PSD (R=0.42, p<0.0001). A strong intereye symmetry of the PPA/ONH ratio was observed (R=0.91, p<0.0001), which was greater than that of BCVA (R=0.58, p<0.0001), MD (R=0.76, p<0.0001) or PSD (R=0.70, p<0.0001).ConclusionsAlmost all patients with BSCR exhibit PPA and its extent increases over time. PPA is associated with poorer vision.
Journal Article
Impact of a handpiece with a built-in fluidics pressure sensor on phacoemulsification: a multicentre prospective comparative study
2023
ObjectiveWe assessed whether the immediate pressure adjustments provided by a phacoemulsification handpiece with a built-in pressure sensor (Active Sentry, AS) could decrease the amount of energy delivered in the eye during cataract surgery.Methods and analysisThe Study of Active Sentry in Cataract Surgery was a multicentre prospective clinical trial. The Centurion system (Alcon Labs) was used and we compared phacoemulsifications performed with the AS handpiece with procedures using a sensor placed in the phacoemulsifier (non-AS). The primary outcome measure was the cumulative dissipated energy (CDE) used during the procedures. The secondary outcome measures were the total, longitudinal and torsional ultrasound (US) times, the duration of the surgery and the amount of fluid used during the surgeries.ResultsThe study analysed 1432 (800 AS and 632 non-AS) procedures. The mean patient age was 72.4±10.0 years. The median CDE was respectively 6.3 (IQR 3.5–9.9) and 6.7 (IQR 4.5–11.5) with and without AS (p=0.0001). The median US time was, respectively, 48.0 s (IQR 34.0–68.0) and 55.0 s (IQR 38.0–80.0) with and without AS (p<0.0001). Torsional and longitudinal US times were reduced with AS. The median duration of the procedure was, respectively, 9.0 min (IQR 7.0–12.0) and 10.0 min (IQR 7.0–13.0) (p=0.0002) with and without AS. The median balanced salt solution volume used was 52.0 cm3 (IQR 41.0–72.0) and 57.0 cm3 (IQR 42.0–81.0) with and without AS (p=0.0018).ConclusionThe phacoemulsifications performed with a pressure sensor built in the handpiece delivered less energy in the eye and were shorter.Trial registration numberNCT04732351.
Journal Article
Comparison between the areas of scarred and active toxoplasmic retinochoroiditis
2021
Background/objectivesTo assess the ratio of scarred/active areas of fundus lesions in patients with presumed ocular toxoplasmosis.Subjects/methodsRetrospective monocentric study of patients with presumed ocular toxoplasmosis seen between May 2004 and February 2018. Patients with a positive anti-Toxoplasma serology presenting characteristic fundus lesions. Cases with images of both baseline active and scarred lesions of the fundus were included. The borders of each active or scarred lesion were delineated on colour photographs by two independent observers and the area of the lesions was calculated using Digimizer 4.2.2 (MedCalc Software, Ostend, Belgium). The interobserver variability of the measures was recorded and their means were used for further calculations. To study the ratio of the area of scarred retinochoroiditis over the area of the baseline active lesion (R).ResultsA total of 171 cases (83 males, 88 females) with a mean age of 31.6 ± 13.8 years were included. The average areas of active and scarred retinochoroiditis were, respectively, 1.32 ± 1.59 and 1.79 ± 2.36 optic disc area. The average ratio between scarred and active areas of retinochoroiditis was 1.36 [range 0.54–2.18]. The administration of a systemic treatment [R = 1.25, p = 0.003], the absence of a pre-existing scar [R = 1.05, p < 0.001] and a peripapillary location of the lesion [R = 0.85, p < 0.001] were each significantly associated with smaller scarred/active area ratios.ConclusionsWe assessed in a standardized manner the ratio of scarred/active areas of toxoplasmic lesions and showed that the area of scarred lesions was on average slightly larger than the area of active retinochoroiditis.
Journal Article
Rethinking Elective Cataract Surgery Diagnostics, Assessments, and Tools after the COVID-19 Pandemic Experience and Beyond: Insights from the EUROCOVCAT Group
by
Malyugin, Boris E.
,
De Giacinto, Chiara
,
Vinciguerra, Alex L.
in
cataract surgery
,
Cataracts
,
Coronaviruses
2020
The progressive deterioration of the visual function in patients on waiting lists for cataract surgery has a negative impact on their quality of life, especially in the elderly population. Patient waiting times for cataract surgeries in many healthcare settings have increased recently due to the prolonged stop or slowdown of elective cataract surgery as a result of coronavirus disease 19 (COVID-19). The aim of this review is to highlight the impact of such a “de-prioritization” of cataract surgery and to summarize some critical issues and useful hints on how to reorganize cataract pathways, with a special focus on perioperative diagnostic tools during the recovery phase and beyond. The experiences of a group of surgeons originating from nine different countries, named the European COVID-19 Cataract Group (EUROCOVCAT), have been combined with the literature and recommendations from scientific ophthalmic societies and healthcare institutions. Key considerations for elective cataract surgery should include the reduction of the number of unnecessary visits and examinations, adoption of precautionary measures, and implementation of telemedicine instruments. New strategies should be adopted to provide an adequate level of assistance and to guarantee safety conditions. Flexibility will be the watchword and regular updates would be necessary following scientific insights and the development of the pandemic.
Journal Article
Clinical, biological, and ophthalmological characteristics differentiating arteritic from non-arteritic anterior ischaemic optic neuropathy
by
Brézin, Antoine P
,
Parreau, Simon
,
Dumonteil, Stéphanie
in
Biopsy
,
Drug dosages
,
Glucocorticoids
2023
Background/AimsTo identify characteristics that can distinguish AAION from NAAION in emergency practice.MethodsThis is a multicentre retrospective case-control study. Ninety-four patients with AAION were compared to ninety-four consecutive patients with NAAION. We compared the clinical, biological, and ophthalmological characteristics at baseline of patients with AAION and those with NAAION.ResultsPatients with AAION were older and more likely to have arterial hypertension. Cephalic symptoms and acute-phase reactants were more frequent in AAION. Profound vision loss and bilateral involvement were more frequent in AAION at baseline. Central retinal and cilioretinal artery occlusions was only observed in AAION, and delayed choroidal perfusion was more frequently observed in AAION than in NAAION. Using logistic regression, an age >70 years (OR = 3.4, IC95% = 0.8–16.1, p = 0.105), absence of splinter haemorrhage (OR = 4.9, IC95% = 1.4–20.5, p = 0.019), delayed choroidal perfusion (OR = 7.2, IC95% = 2.0–28.0, p = 0.003), CRP > 7 mg/L (OR = 43.6, IC95% = 11.6–229.1, p < 0.001) and platelets >400 × G/L (OR = 27.5, IC95% = 4.6–270.9, p = 0.001) were independently associated with a diagnosis of AAION. An easy-to-use score based on these variables accurately distinguished AAION from NAAION with a sensitivity of 93.3% and specificity of 92.4%.ConclusionIn patients presenting with AION, a set of ophthalmological and laboratory criteria can efficiently discriminate patients with AAION and NAAION and can identify which patients would benefit from high-dose glucocorticoids. External validation of our results is required.
Journal Article
Adalimumab for prevention of uveitic flare in patients with inactive non-infectious uveitis controlled by corticosteroids (VISUAL II): a multicentre, double-masked, randomised, placebo-controlled phase 3 trial
by
Dick, Andrew D
,
Brézin, Antoine P
,
Sheppard, John
in
Acute Disease
,
Adalimumab - therapeutic use
,
Adrenal Cortex Hormones - therapeutic use
2016
Non-infectious uveitis is a potentially sight-threatening ocular disorder caused by chronic inflammation and its complications. Therapeutic success is limited by systemic adverse effects associated with long-term corticosteroid and immunomodulator use if topical medication is not sufficient to control the inflammation. We aimed to assess the efficacy and safety of adalimumab in patients with inactive, non-infectious uveitis controlled by systemic corticosteroids.
We did this multicentre, double-masked, randomised, placebo-controlled phase 3 trial at 62 study sites in 21 countries in the USA, Canada, Europe, Israel, Australia, and Latin America. Patients (aged ≥18 years) with inactive, non-infectious intermediate, posterior, or panuveitic uveitis controlled by 10–35 mg/day of prednisone were randomly assigned (1:1), via an interactive voice and web response system with a block size of four, to receive either subcutaneous adalimumab (loading dose 80 mg; biweekly dose 40 mg) or placebo, with a mandatory prednisone taper from week 2. Randomisation was stratified by baseline immunosuppressant treatment. Sponsor personnel with direct oversight of the conduct and management of the study, investigators, study site personnel, and patients were masked to treatment allocation. The primary efficacy endpoint was time to treatment failure, a multicomponent endpoint encompassing new active inflammatory chorioretinal or inflammatory retinal vascular lesions, anterior chamber cell grade, vitreous haze grade, and visual acuity. Analysis was done in the intention-to-treat population. This trial is registered with ClinicalTrials.gov, number NCT01124838.
Between Aug 10, 2010, and May 14, 2015, we randomly assigned 229 patients to receive placebo (n=114) or adalimumab (n=115); 226 patients comprised the intention-to-treat population. Median follow-up time was 155 days (IQR 77–357) in the placebo group and 245 days (119–564) in the adalimumab group. Treatment failure occurred in 61 (55%) of 111 patients in the placebo group compared with 45 (39%) of 115 patients in the adalimumab group. Time to treatment failure was significantly improved in the adalimumab group compared with the placebo group (median not estimated [>18 months] vs 8·3 months; hazard ratio 0·57, 95% CI 0·39–0·84; p=0·004). The 40th percentile for time to treatment failure was 4·8 months in the placebo group and 10·2 months in the adalimumab group. No patients in either group had opportunistic infections (excluding oral candidiasis and tuberculosis). No malignancies were reported in the placebo group whereas one (1%) patient in the adalimumab group reported non-serious squamous cell carcinoma. The most common adverse events were arthralgia (12 [11%] patients in the placebo group and 27 [23%] patients in the adalimumab group), nasopharyngitis (16 [17%] and eight [16%] patients, respectively), and headache (17 [15%] patients in each group).
Adalimumab significantly lowered the risk of uveitic flare or loss of visual acuity upon corticosteroid withdrawal in patients with inactive, non-infectious intermediate, posterior, or panuveitic uveitis controlled by systemic corticosteroids. No new safety signals were observed and the rate of adverse events was similar between groups. These findings suggest that adalimumab is well tolerated and could be an effective treatment option in this patient population. An open-label extension study (NCT01148225) is ongoing to provide long-term safety data for adalimumab in patients with non-infectious uveitis.
AbbVie.
Journal Article
Adalimumab in Patients with Active Noninfectious Uveitis
by
Dick, Andrew D
,
Brézin, Antoine P
,
Camez, Anne
in
Acuity
,
Adalimumab - adverse effects
,
Adalimumab - therapeutic use
2016
This phase 3 trial showed that persons with noninfectious uveitis who received adalimumab were more likely to have serious adverse events and less likely to have ophthalmic inflammation, uveitic flare, or visual impairment than were those who received placebo.
Noninfectious uveitis is a group of vision-threatening diseases that are characterized by intraocular inflammation; it can occur as a syndrome isolated to the eye or in association with a systemic condition. Uveitis has an estimated incidence of 17 to 52 cases per 100,000 person-years
1
and is estimated to cause 10 to 15% of cases of blindness in Western countries.
2
,
3
Glucocorticoids remain the mainstay of therapy despite their well-known ocular and systemic adverse effects.
4
–
6
Thus, there is a large unmet medical need for and a great interest in identifying more effective, glucocorticoid-sparing therapies, ideally targeting specific mediators of the . . .
Journal Article
Occupational cataracts and lens opacities in interventional cardiology (O'CLOC study): are X-Rays involved? Radiation-induced cataracts and lens opacities
2010
The eye is well known to be sensitive to clearly high doses (>2 Gy) of ionizing radiation. In recent years, however, cataracts have been observed in populations exposed to lower doses. Interventional cardiologists are repeatedly and acutely exposed to scattered ionizing radiation (X-rays) during the diagnostic and therapeutic procedures they perform. These \"low\" exposures may cause damage to the lens of the eye and induce early cataracts, known as radiation-induced cataracts. The O'CLOC study (Occupational Cataracts and Lens Opacities in interventional Cardiology) was designed to test the hypothesis that interventional cardiologists, compared with an unexposed reference group of non-interventional cardiologists, have an increased risk of cataracts.
The O'CLOC study is a cross-sectional study that will include a total of 300 cardiologists aged at least 40 years: one group of exposed interventional cardiologists and another of non-interventional cardiologists. The groups will be matched for age and sex. Individual information, including risk factors for cataracts (age, diabetes, myopia, etc.), will be collected during a telephone interview. A specific section of the questionnaire for the exposed group focuses on occupational history, including a description of the procedures (type, frequency, radiation protection tool) used. These data will be used to classify subjects into \"exposure level\" groups according to cumulative dose estimates. Eye examinations for all participants will be performed to detect cataracts, even in the early stages (lens opacities, according to LOCS III, the international standard classification). The analysis will provide an estimation of the cataract risk in interventional cardiology compared with the unexposed reference group, while taking other risk factors into account. An analysis comparing the risks according to level of exposure is also planned.
This epidemiological study will provide further evidence about the potential risk of radiation-induced cataracts at low doses and contribute to cardiologists' awareness of the importance of radiation protection.
NCT01061463.
Journal Article