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Akada M, Muraoka Y, Morooka S, Ishihara K, Kogo T, Akaike N, Nakanishi K, Yamao Y, Hata M, Tsujikawa A. Blood flow alterations in cavernous sinus dural arteriovenous fistula: Optical coherence tomography angiography findings. Am J Ophthalmol Case Rep 2024; 34:102066. [PMID: 38741579 PMCID: PMC11090056 DOI: 10.1016/j.ajoc.2024.102066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/02/2024] [Accepted: 04/12/2024] [Indexed: 05/16/2024] Open
Abstract
Purpose This case report details the diagnostic process for a patient with an initial diagnosis of scleritis who was unresponsive to typical treatment modalities, culminating in the identification of a cavernous sinus dural arteriovenous fistula (CS-DAVF). The case highlights the role of anterior segment optical coherence tomography angiography (OCTA) in the diagnosis of this vascular anomaly and in monitoring the response to treatment. Observations A 45-year-old man with persistently elevated intraocular pressure (IOP) and ocular congestion in the left eye was unresponsive to treatment for scleritis. The persistent ocular symptoms and new-onset tinnitus prompted further investigation. Anterior segment OCTA revealed vascular anomalies, and magnetic resonance imaging confirmed a CS-DAVF. The patient underwent endovascular treatment for the CS-DAVF. This intervention led to a significant reduction in IOP in the left eye and the resolution of ocular congestion. Conclusions and importance This case highlights the diagnostic complexities of ophthalmic symptoms that mimic those of other conditions. Furthermore, it demonstrates the essential role of anterior segment OCTA in the accurate diagnosis and effective management of CS-DAVF and highlights the need for comprehensive diagnostic approaches in ophthalmology.
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Affiliation(s)
- Masahiro Akada
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Satoshi Morooka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kenji Ishihara
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Natsuki Akaike
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazumasa Nakanishi
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yukihiro Yamao
- Department of Neurosurgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masayuki Hata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Kogo T, Muraoka Y, Ishikura M, Nishigori N, Akiyama Y, Hata M, Tsujikawa A. Structural changes in laser-induced retinopathy examined by adaptive optics optical coherence tomography. Am J Ophthalmol Case Rep 2024; 34:102052. [PMID: 38633002 PMCID: PMC11021825 DOI: 10.1016/j.ajoc.2024.102052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/05/2024] [Accepted: 03/13/2024] [Indexed: 04/19/2024] Open
Abstract
Purpose We report a case of laser-induced retinopathy that posed diagnostic challenges with conventional spectral domain optical coherence tomography (SD-OCT), but was successfully diagnosed using adaptive optics-optical coherence tomography (AO-OCT). Observations A 27-year-old man with a history of occupational laser device use presented with central scotoma and visual disturbances in the right eye. Conventional SD-OCT only revealed decreased reflectivity in parts of the foveal ellipsoidal zone band. However, other multimodal observations indicated damage to the retinal pigment epithelium (RPE) and choriocapillaris. Additionally, a well-defined circular, dark lesion, approximately 80 μm in diameter, was identified in the outer retina. AO-OCT demonstrated the absence of the RPE and Bruch's membrane, accompanied by the loss of inner and outer segments of cone photoreceptors and dropout of cone cell nuclei, with Müller cells remaining unaffected. Conclusions and Importance This case of laser-induced retinopathy advances our understanding of the pathophysiological effect of laser exposure on the retina, suggesting a higher incidence of laser-induced retinopathy than previously diagnosed. It also serves as a crucial reminder for laser users to exercise caution and highlights the necessity for ophthalmologists to carefully observe and examine such cases.
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Affiliation(s)
- Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaharu Ishikura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naomi Nishigori
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Akiyama
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masayuki Hata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Kogo T, Muraoka Y, Ishikura M, Nishigori N, Akiyama Y, Ueda-Arakawa N, Miyata M, Ooto S, Hata M, Takahashi A, Miyake M, Tsujikawa A. Pigment Epithelial Detachment and Leak Point Locations in Central Serous Chorioretinopathy. Am J Ophthalmol 2024; 261:19-27. [PMID: 38244961 DOI: 10.1016/j.ajo.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
PURPOSE To examine the associations between the vortex vein characteristics and locations of the pigment epithelial detachment (PED) and leak point in patients with central serous chorioretinopathy (CSC). DESIGN Observational case series. METHODS We evaluated 116 eyes of 104 patients with CSC. The PED and leak point locations were superimposed over the choroidal en face images using widefield swept-source optical coherence tomography and fluorescein angiography. We defined the draining areas of the superior and inferior vortex veins and analyzed their associations with the PED and leak point locations. RESULTS One of the 116 eyes with a unique irrigation pattern dominated by the nasal vortex vein was excluded from the analysis. Sixty-nine (60%) of the remaining 115 eyes exhibited asymmetry between the superior and inferior vortex veins. PEDs and leak points were in the vortex vein draining area with greater dilation in 66 (96%) of 69 eyes with asymmetry, and none (0%) were in the opposite areas. Both the PEDs and leak points showed significant differences in their distributions (P < .001, respectively). Additionally, 74% of PEDs and 84% of leak points were located upstream of the vortex vein draining areas, whose frequency was significantly higher compared to other areas (P < .001, respectively). CONCLUSION PED and leak point spatial distributions corresponded with the most terminal part of the dilated vortex veins, suggesting that blood flow disturbances, such as stasis within the affected vortex veins, may be essential in the pathogenesis of CSC.
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Affiliation(s)
- Takahiro Kogo
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Muraoka
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Masaharu Ishikura
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naomi Nishigori
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Akiyama
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naoko Ueda-Arakawa
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Manabu Miyata
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sotaro Ooto
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masayuki Hata
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ayako Takahashi
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masahiro Miyake
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akitaka Tsujikawa
- From the Department of Ophthalmology and Visual Sciences (T.K., Y.M., M.I., N.N., Y.A., N.U.A., M.M., S.O., M.H., A.T., M.M., A.T.), Kyoto University Graduate School of Medicine, Kyoto, Japan
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Akiyama Y, Muraoka Y, Kogo T, Nishigori N, Ishikura M, Ishihara K, Murakami T, Ooto S, Tsujikawa A. Vitreous hemorrhage in retinal vein occlusion without visible traction from the posterior vitreous membrane: An optical coherence tomography angiography case report study. Heliyon 2024; 10:e26019. [PMID: 38380040 PMCID: PMC10877359 DOI: 10.1016/j.heliyon.2024.e26019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/17/2024] [Accepted: 02/06/2024] [Indexed: 02/22/2024] Open
Abstract
Background We report an unusual case of retinal vein occlusion (RVO) associated with vitreous hemorrhage (VH) without visible traction from the posterior vitreous membrane (PVM) at the bleeding point, challenging our current understanding of VH pathophysiology. Case presentation A 52-year-old man presented with VH in the right eye. A detailed examination using optical coherence tomography angiography (OCTA) and ultra-widefield fluorescein angiography revealed branch RVO with non-perfused areas (NPAs) extending peripherally and neovascularization elsewhere (NVE). OCTA showed NVE infiltrating the vitreous cavity, leading to substantial bleeding without visible PVM traction at the bleeding point. The NVE was successfully removed following vitrectomy, and visual acuity improved from 20/20 to 20/13 preoperatively, along with a postoperative improvement in floaters. Conclusions This unique case of RVO suggests the possibility of VH occurring independent of PVM contractions at the bleeding point, challenging the traditional understanding of VH. This finding underscores the potential role of OCTA in diagnosing and managing retinal vascular diseases, underscoring the need for further investigations into the underlying mechanisms, with potential implications for personalized therapeutic strategies.
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Affiliation(s)
- Yuki Akiyama
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naomi Nishigori
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaharu Ishikura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kenji Ishihara
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoaki Murakami
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sotaro Ooto
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Ishikura M, Muraoka Y, Kadomoto S, Nishigori N, Kogo T, Numa S, Nakano E, Hata M, Ishihara K, Ooto S, Tsujikawa A. Evaluation of Foveal Cone and Müller Cells in Epiretinal Membrane using Adaptive Optics OCT. Ophthalmol Sci 2024; 4:100362. [PMID: 37869019 PMCID: PMC10587629 DOI: 10.1016/j.xops.2023.100362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 10/24/2023]
Abstract
Objective To investigate cellular-level morphological alterations in the retinal neuroglia in eyes with epiretinal membrane (ERM). Design Prospective cross-sectional, observational study (November 2020-May 2022). Subjects and Controls We included 41 eyes with unilateral idiopathic ERM and 33 healthy eyes of healthy volunteers. Methods We examined the foveal microstructures in all eyes using adaptive optics OCT (AO-OCT) with axial and lateral resolutions of 3.4 and 3.0 μm, respectively. Adaptive optics OCT images were acquired for a 2.5° (728 μm) area at the foveal center. Main Outcome Measures Foveal microstructures on AO-OCT images, best-corrected visual acuity (BCVA) in logarithm of the minimum angle of resolution units, and associations between these parameters. Results Adaptive optics OCT imaging of healthy eyes and eyes with ERM revealed sharp hyperreflective lines of the external limiting membrane (ELM), accompanied by hyporeflective gaps, individual nuclei of the foveal cone photoreceptors, and Müller cell bodies. The arrangement of Müller cell bodies was more vertical in eyes with ERM than in normal eyes. Epiretinal membranes adhered to foveal Müller cells via the internal limiting membrane (ILM), exerting vertical traction that pulled the foveal cones anteriorly. Adaptive optics OCT also enabled visualization of outer segment (OS) discs. Hyperreflective changes in the OS discs were observed beneath the vertically thickened ellipsoid zone (EZ) in 15 eyes (36.6%) with ERM. For eyes with ERM, multiple regression analysis showed that the length from ILM to the inner border of the outer nuclear layer and the EZ thickness were significantly associated with BCVA (β = 5.3 × 10-4 and 82.7 × 10-4, respectively), with associated 95% confidence intervals of 1.3 × 10-4 to 9.3 × 10-4 (P = 0.011) and 39.0 × 10-4 to 126.5 × 10-4 (P < 0.001), respectively. The EZ thickness was significantly and positively associated with the length from ELM to the retinal pigment epithelium (β = 23.9 × 10-2, 95% confidence interval: 4.8 × 10-2 to 42.9 × 10-2; P = 0.015). Conclusions Cellular imaging of retinal neuroglia by AO-OCT may suggest possible mechanisms associated with visual impairment in patients with ERM, which could potentially contribute to the growing body of knowledge on its pathophysiology. However, these insights require further validation through extensive studies to fully ascertain their significance. Financial Disclosures Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
- Masaharu Ishikura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shin Kadomoto
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naomi Nishigori
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shogo Numa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Eri Nakano
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masayuki Hata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kenji Ishihara
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sotaro Ooto
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Miki M, Miyata M, Ooto S, Tamura H, Ueda-Arakawa N, Muraoka Y, Miyake M, Hata M, Takahashi A, Kido A, Kogo T, Uji A, Tsujikawa A. PREDICTORS OF 3-MONTH AND 1-YEAR VISUAL OUTCOMES AFTER VITRECTOMY WITH SUBRETINAL TISSUE PLASMINOGEN ACTIVATOR INJECTION FOR SUBMACULAR HEMORRHAGE. Retina 2023; 43:1971-1979. [PMID: 37490778 DOI: 10.1097/iae.0000000000003885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
PURPOSE To investigate factors associated with 3-month or 1-year best-corrected visual acuity (BCVA) after vitrectomy with subretinal tissue plasminogen activator injection for submacular hemorrhage (SMH) and to identify the predictors of early displacement. METHODS This prospective cohort study included consecutive eyes with SMH complicating neovascular age-related macular degeneration or retinal macroaneurysm that underwent vitrectomy with subretinal tissue plasminogen activator injection and were followed up for at least 3 months. Parameters that correlated with 3-month BCVA, 1-year BCVA, and 2-week displacement grade (0-3) were identified. RESULTS Twenty-nine eyes of 29 patients (73.1 ± 8.4 years; neovascular age-related macular degeneration, 25 eyes) were included. Logarithm of the minimum angle of resolution BCVA improved 3 months after the surgery (baseline, 0.76 [20/115] ± 0.35; 3-month, 0.51 [20/65] ± 0.32; P = 0.006). In multivariable analyses, 1-year logarithm of the minimum angle of resolution BCVA correlated with age ( P = 0.007, β = 0.39) and SMH recurrence within 1 year after surgery ( P < 0.001, β = 0.65). Two-week displacement grade correlated with the contrast-to-noise ratio of SMH ( P = 0.001, β = -0.54). Macular hole occurred in three eyes (10%) with small SMH size and was closed in all eyes via additional vitrectomy with an inverted internal limiting membrane flap technique. CONCLUSION The recurrence of SMH negatively affected the 1-year visual outcome after vitrectomy with subretinal tissue plasminogen activator injection for SMH. The contrast-to-noise ratio was a useful predictor of early SMH displacement, but not of 1-year BCVA. Further research is necessary to determine the optimal treatment to prevent SMH recurrence.
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Affiliation(s)
- Makoto Miki
- Faculty of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto City, Kyoto Prefecture, Japan; and
| | - Manabu Miyata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Sotaro Ooto
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Hiroshi Tamura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Naoko Ueda-Arakawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Masahiro Miyake
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Masayuki Hata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Ayako Takahashi
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Ai Kido
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Akihito Uji
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-Ku, Kyoto City, Kyoto Prefecture, Japan
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Kogo T, Muraoka Y, Ishikura M, Nishigori N, Ueda-Arakawa N, Miyata M, Tamura H, Hata M, Takahashi A, Miyake M, Tsujikawa A. Widefield choroidal vasculature associated with future condition of subretinal fluid in central serous chorioretinopathy. Heliyon 2023; 9:e18441. [PMID: 37576325 PMCID: PMC10412906 DOI: 10.1016/j.heliyon.2023.e18441] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 06/27/2023] [Accepted: 07/18/2023] [Indexed: 08/15/2023] Open
Abstract
Purpose To examine choroidal angiographic features in the posterior pole associated with resolution or persistency of subretinal fluid (SRF) in eyes with central serous chorioretinopathy (CSC). Design Observational case series. Methods Twenty-nine patients with treatment-naïve CSC were divided into two groups based on the presence or absence of SRF 3 months after the initial visit (month 3) without any treatment. Using enhanced depth imaging of widefield swept-source optical coherence tomography, the choroidal thickness (CT), vessel density (VD), and vessel diameter index (VDI) in the superotemporal and inferotemporal subfields on the temporal side of the 18-mm circle from the disc were measured at the initial visit. We calculated the vertical difference in CT and other choroidal angiographic parameters and evaluated their association with the SRF condition at 3 months. Results The SRF-resolved and SRF-persistent groups included 10 and 19 patients, respectively. At the initial visit, sex, age, axial length, symptom duration, the logarithm of the minimum angle of resolution visual acuity, and foveal thickness were not significantly different between the two groups. The SRF status at month 3 was not associated with the vertical difference in CT and choroidal VD (P = .614, .065, respectively). However, the vertical difference in choroidal VDI was positively associated with the future presence of SRF (P = .017). Conclusions Vertically asymmetric dilation of choroidal vessels in the posterior pole may be a vasculature feature associated with SRF from CSC and may be a good predictor of future SRF status.
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Affiliation(s)
- Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaharu Ishikura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naomi Nishigori
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naoko Ueda-Arakawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Manabu Miyata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroshi Tamura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masayuki Hata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ayako Takahashi
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masahiro Miyake
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Hirano M, Muraoka Y, Kogo T, Ishikura M, Nishigori N, Ueda-Arakawa N, Miyata M, Hata M, Takahashi A, Miyake M, Tsujikawa A. Analysis of widefield choroidal thickness maps of healthy eyes using swept source optical coherence tomography. Sci Rep 2023; 13:11904. [PMID: 37488140 PMCID: PMC10366186 DOI: 10.1038/s41598-023-38845-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 07/16/2023] [Indexed: 07/26/2023] Open
Abstract
We aimed to obtain widefield (WF) swept source optical coherence tomography (SS-OCT) data and examine the features of choroidal thickness maps in healthy eyes. The posterior pole choroidal thickness was examined in 127 eyes using enhanced depth imaging of SS-OCT with a viewing angle of 20 (vertical) × 23 (horizontal) mm, and choroidal thickness maps were generated. For SS-OCT image analysis, we developed a grid with inner and outer rings, each divided into superotemporal, inferotemporal, superonasal, and inferonasal quadrants, comprising a total of nine subfields, including the central 3-mm ring. The posterior pole choroidal thicknesses were significantly lower at the periphery than in the central area, in the inferior field than in the superior field, and in the nasal field than in the temporal field (p < 0.001 for all). We also evaluated the effects of age and axial length (AL) on the WF choroidal thickness. The choroidal thickness in all subfields was negatively associated with advanced age (p < 0.05). The choroidal thicknesses in the central and inferonasal inner and outer subfields were negatively associated with AL (p = 0.042, 0.034, and 0.022, respectively). These findings provide insights into the two-dimensional characteristics of choroidal thickness and its association with age and AL.
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Affiliation(s)
- Masatoshi Hirano
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masaharu Ishikura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Naomi Nishigori
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Naoko Ueda-Arakawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Manabu Miyata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masayuki Hata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Ayako Takahashi
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masahiro Miyake
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
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Hirota Y, Muraoka Y, Kogo T, Ishikura M, Kadomoto S, Nishigori N, Ishihara K, Morooka S, Uji A, Tsujikawa A. Association of Retinal Pigment Epithelium Reflectivity on Optical Coherence Tomography with Recurrence of Vogt-Koyanagi-Harada Disease: A Retrospective Observational Study. Clin Ophthalmol 2023; 17:2071-2079. [PMID: 37496848 PMCID: PMC10368137 DOI: 10.2147/opth.s419546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/16/2023] [Indexed: 07/28/2023] Open
Abstract
Purpose Despite the necessity of optical coherence tomography (OCT) for diagnosis and longitudinal monitoring in patients with Vogt-Koyanagi-Harada (VKH) disease, no studies have identified useful OCT markers for predicting recurrence in these patients. Although the precise reason for this remains unclear, one possibility is that infiltration of inflammatory cells into the choroid attenuates the OCT signal, making it difficult to precisely assess the structure of the choroid. Therefore, this study aimed to investigate changes in retinal pigment epithelium (RPE) reflectivity immediately above the choroid in eyes with acute VKH disease, as well as the association between RPE reflectivity and VKH disease recurrence. Patients and Methods This single-centered retrospective observational study included 20 treatment-naïve patients with acute VKH disease presenting with serous retinal detachment (SRD) in the posterior pole at the initial visit between October 2015 and January 2020, as well as 15 healthy control eyes. All patients were followed up for at least 6 months and received treatment with intravenous methylprednisolone followed by oral administration of prednisolone. Swept-source OCT images through the fovea were used to measure central retinal thickness, central choroidal thickness, and RPE reflectivity. Results During an observation period of 37.2 ± 30.8 months, recurrence of inflammation was observed in 11 patients (55.0%). Initial visual acuity was worse in patients who developed recurrence than in those who did not (P=0.024). On initial OCT images, RPE reflectivity differed significantly between patients with and without recurrence (1.75 ± 0.42 vs 1.35 ± 0.20; P=0.018), while there were no significant differences in other chorioretinal parameters, such as central retinal thickness and choroidal thickness. Conclusion RPE reflectivity on OCT images may be useful for predicting the recurrence of inflammation in patients with VKH disease.
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Affiliation(s)
- Yoshimichi Hirota
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaharu Ishikura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shin Kadomoto
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Naomi Nishigori
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kenji Ishihara
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Satoshi Morooka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akihito Uji
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Nishigori N, Muraoka Y, Ishikura M, Kogo T, Ueda-Arakawa N, Miyata M, Tamura H, Hata M, Takahashi A, Miyake M, Tsujikawa A. Extensive reduction in choroidal thickness after photodynamic therapy in eyes with central serous chorioretinopathy. Sci Rep 2023; 13:10890. [PMID: 37407690 DOI: 10.1038/s41598-023-37802-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/28/2023] [Indexed: 07/07/2023] Open
Abstract
We examined the effect of reduced fluence (rf)-photodynamic therapy (PDT) of the macular area on the wide-field choroidal thickness in 20 eyes with central serous chorioretinopathy (CSC) and 20 age- and sex-matched control eyes. The choroidal thickness at the posterior pole was measured before and after rf-PDT, using a grid with inner and outer rings, each divided into superotemporal, inferotemporal, superonasal, and inferonasal quadrants, respectively, making up a total of nine subfields including the central 3 mm ring. Before treatment, all eyes showed wide-field choroidal thickening from the dilated vortex vein ampulla to the fovea, along the course of the vein. After rf-PDT of the macular area, the choroidal thickness significantly decreased, not only in the irradiated macular area but also outside the arcade vessels in all quadrants (p < 0.001 for all inner subfields; p = 0.035 and p = 0.024 for the outer superonasal and inferonasal subfields, respectively; p < 0.001 and p = 0.004 for the outer superotemporal and inferotemporal subfields, respectively). For control eyes, the choroidal thickness did not differ between the initial visit and follow-up 1.2 ± 0.7 months after the initial visit (p > 0.05 for all subfields). These findings provide new insights into the pathogenesis of CSC and explain the reasons for the effectiveness of rf-PDT for this condition.
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Affiliation(s)
- Naomi Nishigori
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Masaharu Ishikura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Naoko Ueda-Arakawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Manabu Miyata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Hiroshi Tamura
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masayuki Hata
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Ayako Takahashi
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masahiro Miyake
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, 606-8507, Japan
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11
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Kogo T, Muraoka Y, Uji A, Ooto S, Murakami T, Kadomoto S, Iida-Miwa Y, Miyake M, Miyata M, Tsujikawa A. ANGIOGRAPHIC RISK FACTORS FOR RECURRENCE OF MACULAR EDEMA ASSOCIATED WITH BRANCH RETINAL VEIN OCCLUSION. Retina 2020; 41:1219-1226. [PMID: 33323902 DOI: 10.1097/iae.0000000000003026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
PURPOSE To examine angiographic risk factors for the recurrence of macular edema associated with branch retinal vein occlusion. METHODS We consecutively included 51 patients with treatment-naive branch retinal vein occlusion involving the macular area. Each eye initially received 3 monthly ranibizumab injections, with additional injections as necessary. At Month 3, we examined parafoveal vessel diameter indexes (VDI) in all sectors using optical coherence tomography angiography and determined the association with retinal thickness changes (Month 3-Month 5) and the number of ranibizumab injections during 12 months. RESULTS Parafoveal VDIs in the affected, nasal, and temporal sectors at Month 3 were significantly associated with corresponding parafoveal thickening (P = 0.020, 0.010, and <0.001, respectively), and the parafoveal VDIs in the affected and temporal sectors were significantly associated with future foveal thickening (P = 0.037, and 0.026, respectively). Moreover, the parafoveal VDI in the temporal sector showed a significant association with the total required number of ranibizumab injections (P = 0.040). CONCLUSION The parafoveal VDI may adequately represent the degree of congestion associated with branch retinal vein occlusion. Particularly, the VDI in the temporal sector may be a good predictor of future retinal thickening in the corresponding parafovea and the fovea and the number of ranibizumab injections.
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Affiliation(s)
- Takahiro Kogo
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, Japan
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12
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Kogo T, Muraoka Y, Iida Y, Ooto S, Murakami T, Kadomoto S, Iida-Miwa Y, Numa S, Miyake M, Miyata M, Uji A, Tsujikawa A. Angiographic Risk Features of Branch Retinal Vein Occlusion Onset as Determined by Optical Coherence Tomography Angiography. Invest Ophthalmol Vis Sci 2020; 61:8. [PMID: 32031580 PMCID: PMC7324438 DOI: 10.1167/iovs.61.2.8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Purpose Examine associations between the vasculature at arteriovenous (AV) crossings and the onset of branch retinal vein occlusion (BRVO). Methods We included 78 patients with major BRVO, 35 patients with macular BRVO, and 110 controls without BRVO and determined the vessel positions at AV crossings, where the first- or second-order branches of the retinal veins associate, using a viewing angle of 12 × 12 mm2 in optical coherence tomography angiography (OCTA). Results We reviewed 1349 and 1276 AV crossings in BRVO patients and control subjects, respectively. The proportions of venous overcrossing were 26.5%, 28.6%, and 26.8% at non-causative crossings in BRVO eyes, non-BRVO fellow eyes, and unaffected control eyes, respectively; however, the rate of venous overcrossings at the causative crossings was 45.1%. In OCTA analyses, we divided the branches into macular- or non-macular veins. The rate of venous overcrossing was 52.5% at causative crossings in major BRVO but was 28.6% in macular BRVO. Odds ratios for whether venous overcrossing was a risk factor for BRVO were 3.09 (95% confidence interval [CI], 1.96–4.88) and 0.94 (95% CI, 0.44–2.00) for non-macular veins and macular veins, respectively. The patients with major BRVO caused by venous overcrossing were younger than patients for whom the cause was arterial overcrossing (P < 0.001). The onset of macular BRVO did not differ between crossing patterns at causative crossings (P = 0.60). Conclusions In eyes with BRVO, venous overcrossing was a common angiographic feature at causative crossings and might be a risk factor for major BRVO onset.
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13
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Kitano D, Takayama T, Fukamachi D, Migita S, Morikawa T, Kogo T, Kojima K, Mineki T, Murata N, Akutsu N, Oshima T, Sudo M, Haruta H, Hiro T, Hirayama A. P2638Comparison of in-stent responses in 8 month between durable polymer and bioabsorbable polymer everolimus-eluting stent: serial observation with angioscopy and optical coherence tomography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D Kitano
- Nihon University School of Medicine, Tokyo, Japan
| | - T Takayama
- Nihon University School of Medicine, Tokyo, Japan
| | - D Fukamachi
- Nihon University School of Medicine, Tokyo, Japan
| | - S Migita
- Nihon University School of Medicine, Tokyo, Japan
| | - T Morikawa
- Nihon University School of Medicine, Tokyo, Japan
| | - T Kogo
- Nihon University School of Medicine, Tokyo, Japan
| | - K Kojima
- Nihon University School of Medicine, Tokyo, Japan
| | - T Mineki
- Nihon University School of Medicine, Tokyo, Japan
| | - N Murata
- Nihon University School of Medicine, Tokyo, Japan
| | - N Akutsu
- Nihon University School of Medicine, Tokyo, Japan
| | - T Oshima
- Nihon University School of Medicine, Tokyo, Japan
| | - M Sudo
- Nihon University School of Medicine, Tokyo, Japan
| | - H Haruta
- Nihon University School of Medicine, Tokyo, Japan
| | - T Hiro
- Nihon University School of Medicine, Tokyo, Japan
| | - A Hirayama
- Nihon University School of Medicine, Tokyo, Japan
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14
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Kogo T, Hiro T, Tamaki T, Mineki T, Kojima K, Yuzawa Y, Murata N, Iida K, Akutsu N, Oshima T, Haruta H, Fukamachi D, Takayama T, Hirayama A. P2351Spatial distribution of macrophage accumulation within coronary arterial wall in diabetic versus non-diabetic patients with acute coronary syndrome: a study with multi-intravascular imaging modalities. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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15
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Tomago H, Chiashi K, Kogo T. Effects of CO2 tolerance table breath-hold training. ARCH MAL PROF ENVIRO 2013. [DOI: 10.1016/j.admp.2013.07.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Hirose S, Hamamoto K, Yoshida I, Inokuchi T, Kogo T, Mitsudome A. Late-onset type II glutaric aciduria with massive pericardial effusion associated with severe fatty liver. Acta Paediatr 2000; 89:887-8. [PMID: 10943977 DOI: 10.1080/080352500750043846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Abstract
An isoleucine/valine polymorphism was observed at codon 1464 of the ATP7A gene, which is thought to encode a copper transporting adenosine triphosphatase (ATPase). The frequency of Val1464 was estimated to be 5.7% in the Japanese population. This polymorphism may be useful in genetic studies of Menkes disease.
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Affiliation(s)
- A Ogawa
- Department of Pediatrics, Chiba University School of Medicine, Japan.
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18
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Ogawa A, Yamamoto S, Takayanagi M, Kogo T, Kanazawa M, Kohno Y. Identification of three novel mutations in the MNK gene in three unrelated Japanese patients with classical Menkes disease. J Hum Genet 1999; 44:206-9. [PMID: 10319589 DOI: 10.1007/s100380050144] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Menkes disease is an X-linked recessive disorder of the copper membrane transport system caused by mutations to the Menkes (MNK) gene. We identified three novel mutations of the MNK gene in three unrelated Japanese patients with classical Menkes disease by analyzing reverse-transcriptase polymerase chain reaction products and genomic DNA of the MNK gene. Firstly, an insertional mutation was found, 1173 ins A, which led to a premature termination and resulted in a very immature Menkes protein. Secondly, we found a point mutation, T2763G, resulting in a leucine-to-arginine conversion, which we predicted would cause a change in the secondary structure of the Menkes protein. Finally, we identified a splicing mutation, 2317 + 5G > C, which resulted in the skipping of both exons 8 and 9 or exon 9 only, and led to a truncation of the protein. Each of these mutations is hypothesized to destroy copper-ATPase-mediated copper transport. We propose that each of these mutations in the MNK gene plays a causative role in the disease.
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Affiliation(s)
- A Ogawa
- Department of Pediatrics, Chiba University School of Medicine, Japan.
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19
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Kogo T, Satoh Y, Kanazawa M, Yamamoto S, Takayanagi M, Ohtake A, Mori M, Niimi H. Expression analysis of two mutant human ornithine transcarbamylases in COS-7 cells. J Hum Genet 1998; 43:54-8. [PMID: 9609999 DOI: 10.1007/s100380050037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Ornithine transcarbamylase (OTC) is located in the mitochondrial matrix of the liver and small intestine and catalyzes the second step of the urea cycle. OTC deficiency (OTCD) is an X-linked inborn error of metabolism and causes hyperammonemia. We reported in 1992 the A152V and G195R mutations in patients with OTCD. These mutant OTC cDNAs were prepared by site-directed mutagenesis using the polymerase chain reaction (PCR). The wild-type and mutant cDNAs were transiently expressed in COS-7 cells. The wild-type cDNA gave an OTC activity of 1180 +/- 47 nmol/min per mg protein. The OTC activities of the A152V and the G195R mutants were 3.7% and 2.5% of that of wild-type, respectively. Immunoblot analysis showed that the quantities of OTC proteins in the A152V and G195R mutants were 29% and 12% of that of wild-type, respectively. In pulse-labeling and pulse-chase experiments, the precursor form of OTC was synthesized and processed to the mature form. The A152V mutant OTC was processed to the mature form as rapidly as the wild-type precursor. However, the processed, mature form of the mutant OTC was rapidly degraded, presumably in the mitochondrial matrix. These results indicate that OTCD with the A152V mutation is due both to rapid degradation of the processed, mature form, and to a lower specific activity of the remaining protein.
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Affiliation(s)
- T Kogo
- Department of Pediatrics, Chiba University School of Medicine, Japan
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20
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Fukazawa R, Nakahori Y, Kogo T, Kawakami T, Akamatsu H, Tanae A, Hibi I, Nagafuchi S, Nakagome Y, Hirayama T. Normal Y sequences in Smith-Lemli-Opitz syndrome with total failure of masculinization. Acta Paediatr 1992; 81:570-2. [PMID: 1392379 DOI: 10.1111/j.1651-2227.1992.tb12300.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We report an infant with characteristics of Smith-Lemli-Opitz syndrome who had anteverted nostrils, apparently low-set ears, micrognathia, high-arched palate, cleft palate, growth and psychomotor retardation, hypotonia, poor suck, cerebral hypotrophy and double renal pelvis and ureter. An EEG showed spike waves in the right temporal area. The patient appeared to have normal internal and external genitalia of the female type. Both ovaries were dysplastic. The karyotype was 46,XY. All of 26 loci on the Y chromosome were positive including SRY, a candidate gene for TDF.
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Affiliation(s)
- R Fukazawa
- Department of Pediatrics, Nippon Medical School, Japan
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21
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Shibasaki H, Furuta T, Kasuya Y, Okabe T, Katoh T, Kogo T, Hirayama T. Diurnal rhythm in the plasma concentration of cortisol in paediatric patients with orthostatic dysregulation. Biomed Environ Mass Spectrom 1990; 19:225-9. [PMID: 2340360 DOI: 10.1002/bms.1200190404] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A gas chromatographic/mass spectrometric method using stable isotopically labelled cortisol as an internal standard was employed to determine patterns of episodic secretion of cortisol in three normal subjects and four paediatric patients with orthostatic dysregulation. The measurement of the plasma cortisol level at frequent time intervals revealed how the daily secretory pattern of cortisol differs in these patients and normal subjects.
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Affiliation(s)
- H Shibasaki
- Department of Clinical Pharmacy, Tokyo College of Pharmacy, Japan
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22
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Sugaya A, Kodama T, Kogo T, Sato H, Minabe M, Tamura T, Takai T, Ogawa Y, Watanabe Y, Hori T. [The implantation of hydroxyapatite and tricalcium phosphate in periodontal osseous defects in dogs--histological study]. Nihon Shishubyo Gakkai Kaishi 1987; 29:179-97. [PMID: 3506009 DOI: 10.2329/perio.29.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Minabe M, Kogo T, Tamura T, Hayase K, Shimada N, Ichinose Y, Miwa H, Hori T, Watanabe Y, Sakamoto I. [Use of new materials for the enhancement of local accumulation of fibrin in periodontal therapy. Possibilities of clinical use]. Nihon Shishubyo Gakkai Kaishi 1986; 28:203-12. [PMID: 3459770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Minabe M, Tamura T, Kodama T, Sugaya A, Fukuda T, Kogo T, Tomomatsu E, Oba M, Matsuno M, Miyagima M. [The use of bone graft material in conservative dentistry. 2. Long-term studies after artificial bone grafting and bibliographical studies of traumatotherapy following periodontal surgery]. Kanagawa Shigaku 1985; 20:115-30. [PMID: 3009839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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25
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Minabe M, Kodama T, Sugaya A, Tamura T, Kogo T, Tomomatsu E, Oishi S, Kashima I, Kikuchi K, Hori T. [Technological imaging study of periodontal disease. 2. Effect of K.V. and density change on the Wiener spectrum]. Nihon Shishubyo Gakkai Kaishi 1985; 27:394-9. [PMID: 3864883 DOI: 10.2329/perio.27.394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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26
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Nishimura T, Kogo T, Yokomuro K, Kimura Y, Kajita A. Immunological studies in the multiple hemoglobins of tadpole and frog of Rana catesbeiana. FEBS Lett 1973; 36:1-4. [PMID: 4201117 DOI: 10.1016/0014-5793(73)80323-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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27
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Yamamoto M, Honda K, Endo Y, Kogo T, Shimizu H. [Case of acquired primary agammaglobulinemia complicated by bronchiectasis]. Nihon Shonika Gakkai Zasshi 1972; 76:154-61. [PMID: 4114992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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