Analysis of Peripapillary Intrachoroidal Cavitation and Myopic Peripapillary Distortions in Polar Regions by Optical Coherence Tomography

Adèle Ehongo,1 Noélie Bacq,1 Nacima Kisma,1 Artemise Dugauquier,1 Yassir Alaoui Mhammedi,1 Kevin Coppens,2 Françoise Bremer,1 Karelle Leroy3 1Ophthalmology Department, Erasmus Hospital, Brussels, 1070, Belgium; 2Statistician, Cosma Consulting, Enghien 7850, Belgium; 3Histology Department, Erasmus Ca...

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Main Authors: Ehongo A, Bacq N, Kisma N, Dugauquier A, Alaoui Mhammedi Y, Coppens K, Bremer F, Leroy K
Format: Article
Language:English
Published: Dove Medical Press 2022-08-01
Series:Clinical Ophthalmology
Subjects:
Online Access:https://www.dovepress.com/analysis-of-peripapillary-intrachoroidal-cavitation-and-myopic-peripap-peer-reviewed-fulltext-article-OPTH
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author Ehongo A
Bacq N
Kisma N
Dugauquier A
Alaoui Mhammedi Y
Coppens K
Bremer F
Leroy K
author_facet Ehongo A
Bacq N
Kisma N
Dugauquier A
Alaoui Mhammedi Y
Coppens K
Bremer F
Leroy K
author_sort Ehongo A
collection DOAJ
description Adèle Ehongo,1 Noélie Bacq,1 Nacima Kisma,1 Artemise Dugauquier,1 Yassir Alaoui Mhammedi,1 Kevin Coppens,2 Françoise Bremer,1 Karelle Leroy3 1Ophthalmology Department, Erasmus Hospital, Brussels, 1070, Belgium; 2Statistician, Cosma Consulting, Enghien 7850, Belgium; 3Histology Department, Erasmus Campus, CP 620, Université Libre de Bruxelles, Brussels, 1070, BelgiumCorrespondence: Adèle Ehongo, Ophthalmology Department, Erasmus Hospital, Route de Lennik 808, Brussels, 1070, Belgium, Tel +3225553114, Fax +3225556737, Email adele.ehongo@erasme.ulb.ac.beAbstract: Purpose: To compare the peripapillary polar characteristics in eyes combining peripapillary staphyloma and gamma peripapillary atrophy according to whether peripapillary intrachoroidal cavitation (PICC) was present or absent (combination-group).Patients and methods: This prospective non-interventional cross-sectional study included 667 eyes of 334 subjects. From the polar peripapillary regions to the opening of Bruch’s membrane, the following elements and their topographic relationships were analyzed using optical coherence tomography sections: configuration of the posterior curvature of the choroid, visibility of the subarachnoid space (SAS), and suprachoroidal detachment (SCD). Chi-squared and Fisher exact tests were used for statistical analysis.Results: The protrusion of the posterior choroidal wall, with anterior elevation on either side, observed in both groups progressed and transformed into a wedge-shaped deformity on the side of gamma peripapillary atrophy. This wedge configuration was significantly more frequent in PICC-group than in combination-group (p = 0.004 and p < 0.001) for the upper and lower poles, respectively. SAS was more frequently observed in PICC-group than in combination-group (p = 0.002 and p < 0.001) for the upper and lower poles, respectively. SCD was detected exclusively in PICC-group (p < 0.001, both poles). The wedge-shaped configuration and the SCD were aligned antero-posteriorly with the SAS.Conclusion: We confirmed that PICC is an SCD. We observed its constant alignment with the SAS. We suggest that the tensile forces of the optic nerve sheaths during adduction promote the collapse of the scleral flange onto the SAS, leading to PICC. Further studies are warranted to confirm this hypothesis.Keywords: peripapillary intrachoroidal cavitation, suprachoroidal detachment, gamma peripapillary atrophy, staphyloma, subarachnoid space, myopic complications
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spelling doaj.art-c8b8c13958bd4a1d953a52a64db20ae82022-12-22T01:37:36ZengDove Medical PressClinical Ophthalmology1177-54832022-08-01Volume 162617262977375Analysis of Peripapillary Intrachoroidal Cavitation and Myopic Peripapillary Distortions in Polar Regions by Optical Coherence TomographyEhongo ABacq NKisma NDugauquier AAlaoui Mhammedi YCoppens KBremer FLeroy KAdèle Ehongo,1 Noélie Bacq,1 Nacima Kisma,1 Artemise Dugauquier,1 Yassir Alaoui Mhammedi,1 Kevin Coppens,2 Françoise Bremer,1 Karelle Leroy3 1Ophthalmology Department, Erasmus Hospital, Brussels, 1070, Belgium; 2Statistician, Cosma Consulting, Enghien 7850, Belgium; 3Histology Department, Erasmus Campus, CP 620, Université Libre de Bruxelles, Brussels, 1070, BelgiumCorrespondence: Adèle Ehongo, Ophthalmology Department, Erasmus Hospital, Route de Lennik 808, Brussels, 1070, Belgium, Tel +3225553114, Fax +3225556737, Email adele.ehongo@erasme.ulb.ac.beAbstract: Purpose: To compare the peripapillary polar characteristics in eyes combining peripapillary staphyloma and gamma peripapillary atrophy according to whether peripapillary intrachoroidal cavitation (PICC) was present or absent (combination-group).Patients and methods: This prospective non-interventional cross-sectional study included 667 eyes of 334 subjects. From the polar peripapillary regions to the opening of Bruch’s membrane, the following elements and their topographic relationships were analyzed using optical coherence tomography sections: configuration of the posterior curvature of the choroid, visibility of the subarachnoid space (SAS), and suprachoroidal detachment (SCD). Chi-squared and Fisher exact tests were used for statistical analysis.Results: The protrusion of the posterior choroidal wall, with anterior elevation on either side, observed in both groups progressed and transformed into a wedge-shaped deformity on the side of gamma peripapillary atrophy. This wedge configuration was significantly more frequent in PICC-group than in combination-group (p = 0.004 and p < 0.001) for the upper and lower poles, respectively. SAS was more frequently observed in PICC-group than in combination-group (p = 0.002 and p < 0.001) for the upper and lower poles, respectively. SCD was detected exclusively in PICC-group (p < 0.001, both poles). The wedge-shaped configuration and the SCD were aligned antero-posteriorly with the SAS.Conclusion: We confirmed that PICC is an SCD. We observed its constant alignment with the SAS. We suggest that the tensile forces of the optic nerve sheaths during adduction promote the collapse of the scleral flange onto the SAS, leading to PICC. Further studies are warranted to confirm this hypothesis.Keywords: peripapillary intrachoroidal cavitation, suprachoroidal detachment, gamma peripapillary atrophy, staphyloma, subarachnoid space, myopic complicationshttps://www.dovepress.com/analysis-of-peripapillary-intrachoroidal-cavitation-and-myopic-peripap-peer-reviewed-fulltext-article-OPTHperipapillary intrachoroidal cavitationsuprachoroidal detachmentgamma peripapillary atrophystaphylomasubarachnoid spacemyopic complications.
spellingShingle Ehongo A
Bacq N
Kisma N
Dugauquier A
Alaoui Mhammedi Y
Coppens K
Bremer F
Leroy K
Analysis of Peripapillary Intrachoroidal Cavitation and Myopic Peripapillary Distortions in Polar Regions by Optical Coherence Tomography
Clinical Ophthalmology
peripapillary intrachoroidal cavitation
suprachoroidal detachment
gamma peripapillary atrophy
staphyloma
subarachnoid space
myopic complications.
title Analysis of Peripapillary Intrachoroidal Cavitation and Myopic Peripapillary Distortions in Polar Regions by Optical Coherence Tomography
title_full Analysis of Peripapillary Intrachoroidal Cavitation and Myopic Peripapillary Distortions in Polar Regions by Optical Coherence Tomography
title_fullStr Analysis of Peripapillary Intrachoroidal Cavitation and Myopic Peripapillary Distortions in Polar Regions by Optical Coherence Tomography
title_full_unstemmed Analysis of Peripapillary Intrachoroidal Cavitation and Myopic Peripapillary Distortions in Polar Regions by Optical Coherence Tomography
title_short Analysis of Peripapillary Intrachoroidal Cavitation and Myopic Peripapillary Distortions in Polar Regions by Optical Coherence Tomography
title_sort analysis of peripapillary intrachoroidal cavitation and myopic peripapillary distortions in polar regions by optical coherence tomography
topic peripapillary intrachoroidal cavitation
suprachoroidal detachment
gamma peripapillary atrophy
staphyloma
subarachnoid space
myopic complications.
url https://www.dovepress.com/analysis-of-peripapillary-intrachoroidal-cavitation-and-myopic-peripap-peer-reviewed-fulltext-article-OPTH
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