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  1. Article ; Online: Primary balloon dacryoplasty for nasolacrimal duct obstruction in adults: a systematic review.

    Poignet, Barthélémy / Sultanik, Philippe / Beaujeux, Pauline / Koch, Edouard / Benkhatar, Hakim

    Orbit (Amsterdam, Netherlands)

    2020  Volume 40, Issue 6, Page(s) 455–460

    Abstract: ... ...

    Abstract Introduction
    MeSH term(s) Adult ; Dacryocystorhinostomy ; Humans ; Lacrimal Duct Obstruction/therapy ; Nasolacrimal Duct/surgery ; Treatment Outcome
    Keywords covid19
    Language English
    Publishing date 2020-09-10
    Publishing country England
    Document type Journal Article ; Systematic Review
    ZDB-ID 603157-2
    ISSN 1744-5108 ; 0167-6830
    ISSN (online) 1744-5108
    ISSN 0167-6830
    DOI 10.1080/01676830.2020.1818264
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Primary balloon dacryoplasty for nasolacrimal duct obstruction in adults: a systematic review

    Poignet, Barthélémy / Sultanik, Philippe / Beaujeux, Pauline / Koch, Edouard / Benkhatar, Hakim

    Orbit

    Abstract: Introduction: Acquired nasolacrimal duct obstruction (NLDO) is a major cause of epiphora. Balloon dacryoplasty (BD) is a minimally invasive procedure effectively used for congenital NLDO which has also been used in adults, instead of ... ...

    Abstract Introduction: Acquired nasolacrimal duct obstruction (NLDO) is a major cause of epiphora. Balloon dacryoplasty (BD) is a minimally invasive procedure effectively used for congenital NLDO which has also been used in adults, instead of dacryocystorhinostomy (DCR), the current gold standard technique. The main objectives were to assess the results of BD with and without silicone tube insertion (STI) in NLDO in adults. Materiel and Method: A systematic review of literature was conducted on PubMed, SCOPUS and Cochrane databases. The articles were scanned to identify all studies that evaluated the outcomes of primary BD for NLDO in adults. The mean success rates were calculated and compared using the multiple comparisons Sidak's T-test Results: Sixty-seven articles were identified but only 13 publications matched the inclusion criteria. For partial NLDO, BD had a mean, success rate of 73.29% (64.86% with STI) with a mean follow-up of 16 months. For complete NLDO, BD had a success rate of 36.67% (52.50% with STI) with a mean follow-up of 15.5 months. Altogether the success rate of BD was significantly higher for partial NLDO compared to complete stenosis (p = 0,002). Conclusion: BD is significantly more successful for partial NLDO, without significant additional benefit from subsequent STI. The main complication would be the high recurrence rate. BD is not effective for complete NLDO with very low success rates. However, BD could be proposed for partial NLDO, as it is a safe procedure, with minimal invasiveness in comparison to DCR. Further prospective and controlled studies are required to confirm these encouraging results.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #32912011
    Database COVID19

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  3. Article ; Online: Incidence and characteristics of rhegmatogenous retinal detachment during coronavirus-19 pandemic: A French study.

    Vest, Agathe / Keilani, Chafik / Chaumet-Riffaud, Philippe / Barale, Pierre-Olivier / Tuil, Eric / Ayello-Scheer, Sarah / Koch, Edouard / Abada, Samir / Giocanti-Auregan, Audrey / Durand-Zaleski, Isabelle / Delbarre, Maxime / Froussart-Maille, Françoise / Beaugrand, Amélie / Tadayoni, Ramin / Sahel, José-Alain / Paques, Michel

    European journal of ophthalmology

    2022  Volume 32, Issue 6, Page(s) 3644–3649

    Abstract: Purpose: To assess the impact of the Covid-19 pandemic and subsequent lockdown on the number and clinical characteristics of patients with retinal detachment (RD) in a French public university eye hospital.: Methods: Single-center, retrospective non- ... ...

    Abstract Purpose: To assess the impact of the Covid-19 pandemic and subsequent lockdown on the number and clinical characteristics of patients with retinal detachment (RD) in a French public university eye hospital.
    Methods: Single-center, retrospective non-interventional study. Patients consulting at the emergency room (ER) of Quinze-Vingts Hospital (France) for rhegmatogenous RD before and after instauration of the lockdown were reviewed. We compared the characteristics of patients with RD between the containment period (March17th - April27th,2020) and the period preceding the lockdown (February18th - March16th,2020). We compared the number of RD surgeries performed between the first month of lockdown (March17th - April19th,2020) and the corresponding period of 2019. Number of cases, delay between diagnosis and surgery, visual acuity was measured.
    Results: During the first month of lockdown, 59 RDs were operated on, compared to 107 in the corresponding period in 2019 (-44,8%). Mean time from first symptoms to surgery was significantly higher during the lockdown 12.7 (11.3) days vs 7.6 (7.8) days (p = 0.031) before. During the lockdown, the mean BCVA was lower albeit the difference did not reach statistical significance (1.16 (0.9) during pre-containment vs 1.5 (0.9) during containment; p = 0.09). Reasonsfor delayed consultation were: fear of Covid-19 (31%; p = 0.0001), absence of referral doctor (31%; p = 0.003) and difficulties in getting to public transport (10.3%;p = 0.859).
    Conclusion: Despite maintaining accessto emergency eye care facilitiesin our hospital, the lockdown affected visual health. Should the lockdown be reinstated, we postulate that a better information about eye care access for non-Covid emergencies may attenuate its effect on visual health.
    MeSH term(s) COVID-19/epidemiology ; Communicable Disease Control ; Humans ; Incidence ; Pandemics ; Retinal Detachment/epidemiology ; Retinal Detachment/etiology ; Retinal Detachment/surgery ; Retrospective Studies
    Language English
    Publishing date 2022-02-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1089461-5
    ISSN 1724-6016 ; 1120-6721
    ISSN (online) 1724-6016
    ISSN 1120-6721
    DOI 10.1177/11206721221080810
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Relationships between retinal arteriole anatomy and aortic geometry and function and peripheral resistance in hypertensives.

    Rosenbaum, David / Kachenoura, Nadjia / Koch, Edouard / Paques, Michel / Cluzel, Philippe / Redheuil, Alban / Girerd, Xavier

    Hypertension research : official journal of the Japanese Society of Hypertension

    2016  Volume 39, Issue 7, Page(s) 536–542

    Abstract: Microvascular remodeling and large artery stiffness are key determinants of cardiovascular hemodynamics and can now be studied with new non-invasive methods. Our objective was to study the relationships between retinal arteriole anatomy and aortic ... ...

    Abstract Microvascular remodeling and large artery stiffness are key determinants of cardiovascular hemodynamics and can now be studied with new non-invasive methods. Our objective was to study the relationships between retinal arteriole anatomy and aortic geometry and function and peripheral resistance (total peripheral resistance (TPR)) in hypertensives. In 80 subjects (age 52±13 years; 53% males; including 23 normotensives and 57 hypertensives, among which 29 were uncontrolled hypertensives), we used: (1) the new non-invasive RTX1 adaptive optics (AO) camera (Imagine Eyes, Orsay, France) to measure the wall-to-lumen ratio (WLR) on retinal microvasculature; (2) cardiovascular magnetic resonance (CMR) imaging to assess aortic stiffness, geometry and cardiac output; and (3) the validated SphymoCor Xcel device to measure central blood pressure (BP) and carotido-femoral pulse wave velocity (Cf-PWV). TPR was calculated as the central mean BP/cardiac output ratio. WLR and TPR were significantly higher and aortic distensibility was significantly lower in hypertensives. Aortic dilation and arch elongation were found in uncontrolled hypertensives. In the univariate analysis, WLR was positively correlated with central BP (P<0.001), TPR (P<0.001) and Cf-PWV (P<0.05), and it was negatively correlated with aortic distensibility (P=0.003); however, it was not correlated with age or cardiovascular risk factors. The multivariate analysis indicated that WLR was associated with TPR (P=0.002) independent of age, BMI, gender, antihypertensive treatments, aortic diameter and central SBP. As expected, age was the major correlate of ascending aorta distensibility and Cf-PWV. New non-invasive vascular imaging methods are complementary for the detection of the deleterious effects of aging or high BP on large and small arteries. AO examination could represent a useful tool for the study and follow-up of microvasculature anatomical changes.
    MeSH term(s) Adult ; Aged ; Aging ; Aorta/diagnostic imaging ; Aorta/pathology ; Arterioles/diagnostic imaging ; Arterioles/pathology ; Female ; Humans ; Hypertension/pathology ; Hypertension/physiopathology ; Male ; Middle Aged ; Risk Factors ; Vascular Resistance ; Vascular Stiffness
    Language English
    Publishing date 2016-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 1175297-x
    ISSN 1348-4214 ; 0916-9636
    ISSN (online) 1348-4214
    ISSN 0916-9636
    DOI 10.1038/hr.2016.26
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: High-resolution imaging of gunn's dots.

    Paques, Michel / Miloudi, Chahira / Kulcsar, Caroline / Leseigneur, Alexandre / Chaumette, Céline / Koch, Edouard

    Retina (Philadelphia, Pa.)

    2015  Volume 35, Issue 1, Page(s) 120–124

    Abstract: Background: In healthy fundi, glistening whitish dots (so-called Gunn's dots) can often be seen, especially in young subjects. They are commonly attributed to the reflectance of Müller cell's footplates. However, despite their potential interest as ... ...

    Abstract Background: In healthy fundi, glistening whitish dots (so-called Gunn's dots) can often be seen, especially in young subjects. They are commonly attributed to the reflectance of Müller cell's footplates. However, despite their potential interest as biomarkers of retinal diseases, Gunn's dots have received little attention in the scientific literature.
    Methods: Scanning laser ophthalmoscope reflectance imaging and adaptive optics infrared flood imaging were performed in 18 healthy subjects (age range, 18-58 years) to analyze the localization, density, and shape of Gunn's dots.
    Results: Gunn's dots were more easily observed in the midperipheral retina along temporal vessels, although in two subjects, they could be detected in the macula. The reflectance of Gunn's dots showed a strong directional variability, which paralleled that of the inner limiting membrane. The mean (±SD) diameter of Gunn's dots was 13.3 µm (±3.5). Their density peaked at ∼120 per square millimeter and decreased with age to become barely detectable after 50 years.
    Conclusion: Gunn's dots are highly anisotropic structures close to the inner limiting membrane. Their density, size, and age-related decline are closer to the characteristics of hyalocytes than those of Müller cells. Further studies are necessary to progress in the determination of their origin and interest as biomarkers of retinal diseases.
    MeSH term(s) Adolescent ; Adult ; Diagnostic Techniques, Ophthalmological ; Ependymoglial Cells/cytology ; Female ; Healthy Volunteers ; Humans ; Male ; Middle Aged ; Multimodal Imaging ; Retina/anatomy & histology ; Young Adult
    Language English
    Publishing date 2015-01
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603192-4
    ISSN 1539-2864 ; 0275-004X
    ISSN (online) 1539-2864
    ISSN 0275-004X
    DOI 10.1097/IAE.0000000000000269
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: High-Resolution Imaging of Retinal Vasculitis by Flood Illumination Adaptive Optics Ophthalmoscopy: A Follow-up Study.

    Errera, Marie-Hélène / Laguarrigue, Marthe / Rossant, Florence / Koch, Edouard / Chaumette, Céline / Fardeau, Christine / Westcott, Mark / Sahel, José-Alain / Bodaghi, Bahram / Benesty, Jonathan / Paques, Michel

    Ocular immunology and inflammation

    2019  Volume 28, Issue 8, Page(s) 1171–1180

    Abstract: ... ...

    Abstract Purpose
    MeSH term(s) Adult ; Aged ; Diagnostic Imaging/instrumentation ; Female ; Fluorescein Angiography ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Ophthalmoscopy/methods ; Optics and Photonics ; Retinal Vasculitis/diagnostic imaging ; Retinal Vessels/diagnostic imaging ; Retrospective Studies ; Uveitis, Posterior/diagnostic imaging
    Language English
    Publishing date 2019-10-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 1193873-0
    ISSN 1744-5078 ; 0927-3948
    ISSN (online) 1744-5078
    ISSN 0927-3948
    DOI 10.1080/09273948.2019.1646773
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Effects of age, blood pressure and antihypertensive treatments on retinal arterioles remodeling assessed by adaptive optics.

    Rosenbaum, David / Mattina, Alessandro / Koch, Edouard / Rossant, Florence / Gallo, Antonio / Kachenoura, Nadjia / Paques, Michel / Redheuil, Alban / Girerd, Xavier

    Journal of hypertension

    2016  Volume 34, Issue 6, Page(s) 1115–1122

    Abstract: Background: In humans, adaptive optics camera enables precise large-scale noninvasive retinal microcirculation evaluation to assess ageing, blood pressure and antihypertensive treatments respective roles on retinal arterioles anatomy.: Method: We ... ...

    Abstract Background: In humans, adaptive optics camera enables precise large-scale noninvasive retinal microcirculation evaluation to assess ageing, blood pressure and antihypertensive treatments respective roles on retinal arterioles anatomy.
    Method: We used adaptive optics camera rtx1 (Imagine-Eyes, Orsay, France) to measure wall thickness, internal diameter and to calculate wall-to-lumen ratio (WLR) and wall cross-sectional area of retinal arterioles. This assessment was repeated within a short period in two subgroups of hypertensive individuals without or with a drug-induced blood pressure drop.
    Results: In 1000 individuals, mean wall thickness, lumen diameter and WLR were 23.2 ± 3.9, 78.0 ± 10.9 and 0.300 ± 0.054 μm, respectively. Blood pressure and age both independently increased WLR by thickening arterial wall. In opposite, hypertension narrowed lumen in younger as compared to older individuals (73.2 ± 9.0 vs. 81.7 ± 10.2 μm; P < 0.001), whereas age exerted no influence on lumen diameter. Short-term blood pressure drop (-29.3 ± 17.3/-14.4 ± 10.0 mmHg) induced a WLR decrease (-6.0 ± 8.0%) because of lumen dilatation (+4.4 ± 5.9%) without wall thickness changes. By contrast, no modifications were observed in individuals with stable blood pressure. In treated and controlled hypertensives under monotherapy WLR normalization was observed because of combined wall decrease and lumen dilatation independently of antihypertensive pharmacological classes. In multivariate analysis, hypertension drug regimen was not an independent predictor of any retinal anatomical indices. Retinal arteriolar remodeling comprised blood pressure and age-driven wall thickening as well as blood pressure-triggered lumen narrowing in younger individuals.
    Conclusion: Remodeling reversal observed in controlled hypertensives seems to include short-term functional and long-term structural changes.
    MeSH term(s) Adult ; Age Factors ; Aged ; Aging/pathology ; Aging/physiology ; Antihypertensive Agents/therapeutic use ; Arterioles/diagnostic imaging ; Arterioles/pathology ; Arterioles/physiopathology ; Blood Pressure/physiology ; Female ; Humans ; Hypertension/drug therapy ; Hypertension/physiopathology ; Male ; Microcirculation ; Middle Aged ; Optical Imaging/instrumentation ; Optical Imaging/methods ; Retinal Vessels/diagnostic imaging ; Retinal Vessels/pathology ; Retinal Vessels/physiopathology
    Chemical Substances Antihypertensive Agents
    Language English
    Publishing date 2016-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 605532-1
    ISSN 1473-5598 ; 0263-6352 ; 0952-1178
    ISSN (online) 1473-5598
    ISSN 0263-6352 ; 0952-1178
    DOI 10.1097/HJH.0000000000000894
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Venous Nicking Without Arteriovenous Contact: The Role of the Arteriolar Microenvironment in Arteriovenous Nickings.

    Paques, Michel / Brolly, Aurélie / Benesty, Jonathan / Lermé, Nicolas / Koch, Edouard / Rossant, Florence / Bloch, Isabelle / Girmens, Jean-François

    JAMA ophthalmology

    2015  Volume 133, Issue 8, Page(s) 947–950

    Abstract: Importance: Arteriovenous nickings (AVNs) in the retina are the cause of retinal vein occlusions and are also surrogates of cerebrovascular aging. The prevalent mechanistic model of AVNs stating that arteries crush veins remains somewhat unchallenged ... ...

    Abstract Importance: Arteriovenous nickings (AVNs) in the retina are the cause of retinal vein occlusions and are also surrogates of cerebrovascular aging. The prevalent mechanistic model of AVNs stating that arteries crush veins remains somewhat unchallenged despite the lack of evidence other than fundus photographs. Here, we observed that venous nicking may be observed in the absence of physical contact with an arteriole.
    Observations: This observational study, conducted from January 2013 to September 2014, included 7 patients showing remodeling of a venous segment close to a retinal arteriole without arteriovenous overlap were imaged by adaptive optics imaging. Affected venous segments showed a variable association of nicking, narrowing, deviation, and opacification. Venous segments were deviated toward the arterioles in 6 of the 7 cases. The degree of venous narrowing ranged from 40% to 77%, while at these sites, the width of the intervascular space ranged from 16 µm to 42 µm. Similar features were identified in typical AVNs.
    Conclusions and relevance: Arteriovenous nickings do not necessarily involve an arteriovenous compression. Instead, the topology of venous changes suggests a retractile process originating in the intervascular space. These findings have important implications for the understanding of retinal vein occlusions and of cerebrovascular aging.
    MeSH term(s) Aged ; Aged, 80 and over ; Arterioles/physiology ; Arteriovenous Malformations/diagnosis ; Cellular Microenvironment/physiology ; Female ; Humans ; Male ; Middle Aged ; Ophthalmoscopy ; Retinal Diseases/diagnosis ; Retinal Vein/abnormalities ; Retrospective Studies ; Tomography, Optical Coherence
    Language English
    Publishing date 2015-08
    Publishing country United States
    Document type Journal Article ; Observational Study ; Research Support, Non-U.S. Gov't
    ZDB-ID 2701705-9
    ISSN 2168-6173 ; 2168-6165
    ISSN (online) 2168-6173
    ISSN 2168-6165
    DOI 10.1001/jamaophthalmol.2015.1132
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  9. Article ; Online: Morphometric analysis of small arteries in the human retina using adaptive optics imaging: relationship with blood pressure and focal vascular changes.

    Koch, Edouard / Rosenbaum, David / Brolly, Aurélie / Sahel, José-Alain / Chaumet-Riffaud, Philippe / Girerd, Xavier / Rossant, Florence / Paques, Michel

    Journal of hypertension

    2014  Volume 32, Issue 4, Page(s) 890–898

    Abstract: Objectives: The wall-to-lumen ratio (WLR) of retinal arteries is a recognized surrogate of end-organ damage due to aging and/or arterial hypertension. However, parietal morphometry remains difficult to assess in vivo. Recently, it was shown that ... ...

    Abstract Objectives: The wall-to-lumen ratio (WLR) of retinal arteries is a recognized surrogate of end-organ damage due to aging and/or arterial hypertension. However, parietal morphometry remains difficult to assess in vivo. Recently, it was shown that adaptive optics retinal imaging can resolve parietal structures of retinal arterioles in humans in vivo. Here, using adaptive optics retinal imaging, we investigated the variations of parietal thickness of small retinal arteries with blood pressure and focal vascular damage.
    Methods: Adaptive optics imaging of the superotemporal retinal artery was done in 49 treatment-naive individuals [mean age (±SD) 44.9 years (±14); mean systolic pressure 132  mmHg (±22)]. Semi-automated segmentation allowed extracting parietal thickness and lumen diameter. In a distinct cohort, adaptive optics images of arteriovenous nicking (AVN; n = 12) and focal arteriolar narrowing (FAN; n = 10) were also analyzed qualitatively and quantitatively.
    Results: In the cohort of treatment-naive individuals, by multiple regression taking into account age, body mass index, mean, systolic, diastolic and pulse blood pressure, the WLR was found positively correlated to mean blood pressure and age which in combination accounted for 43% of the variability of WLR. In the cohort of patients with focal vascular damage, neither FANs or AVNs showed evidence of parietal growth; instead, at sites of FANs, decreased outer diameter suggestive of vasoconstriction was consistently found, while at sites of AVNs venous narrowing could be seen in the absence of arteriovenous contact.
    Conclusion: High resolution imaging of retinal vessels by adaptive optics allows quantitative microvascular phenotyping, which may contribute to a better understanding and management of hypertensive retinopathy.
    MeSH term(s) Adult ; Arteries/physiology ; Blood Pressure ; Cohort Studies ; Female ; Humans ; Hypertension/diagnosis ; Hypertension/physiopathology ; Male ; Microcirculation ; Middle Aged ; Optics and Photonics ; Retina/physiology ; Retinal Artery ; Retinal Diseases/physiopathology ; Retinal Vessels
    Language English
    Publishing date 2014-01-07
    Publishing country England
    Document type Clinical Trial ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605532-1
    ISSN 1473-5598 ; 0263-6352 ; 0952-1178
    ISSN (online) 1473-5598
    ISSN 0263-6352 ; 0952-1178
    DOI 10.1097/HJH.0000000000000095
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