Thibaut Chapron

Dr. Thibaut Chapron

Fondation Ophtalmologique Adolphe de Rothschild, Paris, Île-de-France, France
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Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 April 2023 in Ophthalmology
Verified
Journal Article
Closed access
GSGuy de Saint Sauveur
Guy de Saint Sauveur
TCThibaut Chapron
Thibaut Chapron
YAYoussef Abdelmassih
Youssef Abdelmassih
ICIsmael Chehaibou
Ismael Chehaibou
ALAugustin Lecler
Augustin Lecler
GCGeorges Caputo
Georges Caputo

11 April 2022 in Journal of Clinical Medicine
Verified
Journal Article
Open access
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TCThibaut Chapron
Thibaut Chapron
VPVéronique Pierrat
Véronique Pierrat
GCGeorges Caputo
Georges Caputo
MLMathilde Letouzey
Mathilde Letouzey
EKElsa Kermorvant-Duchemin
Elsa Kermorvant-Duchemin
HTHéloïse Torchin
Héloïse Torchin
We report the 51/2 year prevalence of visual and oculomotor impairments in preterm children born at 24–34 weeks’ gestation (WG) using the population-based cohort study EPIPAGE-2, set in France, 2011. The main outcomes were imputed prevalence of refractive errors (REs), strabismus, and binocular visual acuity (VA). Children were clinically assessed by specially trained pediatricians. The population was also analyzed in terms of cerebral palsy at 51/2 years (no CP, stage 1, stage 2, or stage 3–5) and retinopathy of prematurity in the neonatal period (no ROP, stage 1 or 2, or severe ROP). Among the 4441 children included, 2718 (weighted percentage 58.7%) were clinically assessed. REs were reported in 43.1% (95% confidence interval 37.6–48.4), 35.2% (32.7–37.6), and 28.4% (25.0–31.8) of children born at 24–26, 27–31, and 32–34 WG (p < 0.01), respectively; strabismus rates were 19.5% (14.6–24.4), 14.8% (12.9–16.7), and 8.3% (6.2–10.4) (p < 0.001), respectively. Moderate/severe visual deficiencies (VA < 3.2/10) were present in 1.7% (0.2–3.3) of children born at 24–26 WG, and in less than 1% in other groups. A suboptimal VA 5/10–6.3/10 was measured in 40.6% (35.3–45.8) of children born at 24–26 WG, 35.8% (33.5–38.1) at 27–31 WG, and 33.7% (30.4–37.0) at 32–34 WG. CP and ROP were associated with strabismus and RE. The association between CP and VA was strong, while it was not observed for ROP. In this large cohort of preterm-born children, we found a high prevalence of RE and strabismus regardless of WG, supporting the need for specific attention in this population. High prevalence of suboptimal VA could be challenging for these children at the age of reading and writing acquisition.

22 December 2021 in Journal of Clinical Medicine
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Journal Article
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DLDaniel Lemaître
Daniel Lemaître
ABAmandine Barjol
Amandine Barjol
YAYoussef Abdelmassih
Youssef Abdelmassih
CFCaroline Farnoux
Caroline Farnoux
GMGilles C. Martin
Gilles C. Martin
GCGeorges Caputo
Georges Caputo
This study aims to assess the prevalence and characteristics of preterm infants with retinopathy of prematurity (ROP) treated outside the recommended guidelines. In this retrospective monocentric cohort, we included all premature children treated in our department for ROP by laser photoablation or anti-VEGF intravitreal injection. The main outcome was treatment of both eyes for ROP less severe than pre-threshold type 1, treated outside ETROP guidelines. A total of 114 children received treatment for ROP in our department, among whom 32 (28.1%) children received treatment for indications outside the ETROP guidelines for both eyes. The indications outside the guidelines were persistent stage 2 or 3 ROP that showed no evidence of regression after 41 weeks of corrected gestational age (11 children; 34.4%), pre-plus stage (11; 34.4%), difficulties in disease staging (7; 21.9%), type 2 ROP with plus disease (2; 6.2%), and treatment due to logistical difficulties (1; 3.1%; hospitalized in neonatal units hundreds of miles away from our department, with no fundus examination possible in the neonatal unit). To resume, in our cohort, 28.1% of children received treatment for ROP less severe than pre-threshold type 1 both eyes. The main indications for off-label treatment were the persistence of active ROP during follow-up and the presence of pre-plus-stage disease. Our data suggest the need to update ROP treatment criteria to reflect real-life practices. Additional studies are required in order to evaluate the long-term benefits and side effects of treatments outside the recommended indications, and to establish revised treatment guidelines.

11 February 2021 in Neonatology
Verified
Journal Article
Closed access
PDF file
TCThibaut Chapron
Thibaut Chapron
GCGeorges Caputo
Georges Caputo
VPVèronique Pierrat
Vèronique Pierrat
EKElsa Kermorvant
Elsa Kermorvant
ABAmandine Barjol
Amandine Barjol
HTHéloïse Torchin
Héloïse Torchin
Introduction: Retinopathy of prematurity (ROP) is a blinding disease that requires screening by retinal examination. Screening practices are rarely evaluated. We aimed to determine the prevalence of ROP screening in very preterm infants and individual- and center-related factors associated with ROP screening. Methods: Data were extracted from the EPIPAGE-2 cohort, a French prospective population-based study of premature births in 2011. Children born before 32 weeks’ gestation (WG) without severe malformation and alive at the recommended time for ROP screening were included. Outcome measures were achievement of ROP screening and compliance with recommended screening timeline. Individual- and center-related factors associated with both measures were studied using mixed models. Results: Among 3,077 eligible infants, 2,169 (70.5%) had a ROP screening, ranging from 96% at 24 WG to 50% at 31 WG. Large variability among units was observed. Individual characteristics associated with screening were low gestational age, low birth weight, severe bronchopulmonary dysplasia or neurological lesions, and transfer between neonatal units during the screening period. Odds of screening were higher in neonatal units using wide-angle imaging (odds ratio 2.65 [95% confidence interval 1.17–6.01]) but decreased in units without a local protocol for ROP screening (0.03 [0.01–0.09]). Among screened children, 1,641/2,169 (75.7%) were screened according to recommended timeline. Delayed screening was associated with low gestational age, severe bronchopulmonary dysplasia or necrotizing enterocolitis, and absence of local protocol for ROP screening. Discussion/Conclusions: In this large cohort study of infants born very preterm, almost one-third were not screened for ROP. Children most at risk for ROP were the best screened but often with delay. The higher compliance of neonatal units using wide-angle imaging systems supports its use.

30 May 2024 in American Journal of Ophthalmology
Verified
Journal Article
Closed access
YAYoussef Abdelmassih
Youssef Abdelmassih
RLRégis Lecoge
Régis Lecoge
MHMehdi El Hassani
Mehdi El Hassani
PDPascal Dureau
Pascal Dureau
GCGeorges Caputo
Georges Caputo
TCThibaut Chapron
Thibaut Chapron

17 February 2024 in American Journal of Ophthalmology
Verified
Journal Article
Closed access
ADAlexandre Dentel
Alexandre Dentel
EBEtienne Boulanger
Etienne Boulanger
TCThibaut Chapron
Thibaut Chapron
LSLucile Senicourt
Lucile Senicourt
FMFlorence Metge
Florence Metge
GMGilles C. Martin
Gilles C. Martin