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Kanzaki Y, Matoba R, Ishihara K, Morita T, Muraoka Y, Kimura S, Koto T, Kawasaki R, Baba T, Okamoto F, Inoue M, Sakamoto T, Tsujikawa A, Morizane Y. Japan-epiretinal membrane (J-ERM) registry: A prospective cohort study protocol investigating the surgical outcome of epiretinal membrane. PLoS One 2024; 19:e0297347. [PMID: 38329968 PMCID: PMC10852224 DOI: 10.1371/journal.pone.0297347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/21/2023] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Epiretinal membrane (ERM) causes visual impairment such as reduction in visual acuity and metamorphopsia due to retinal traction. With the improvement of optical coherence tomography (OCT) and microincision vitrectomy surgery (MIVS), the surgery of ERM has significantly advanced. However, there have been no large-scale studies on the following: (1) how to evaluate visual impairment in ERM, (2) the relationship between OCT findings and visual function, (3) when is the optimal timing of surgery, and (4) the relationship between the surgical instruments as well as techniques and prognosis. The purpose of this study was to obtain evidence regarding these ERM surgeries. METHODS AND DESIGN This is a prospective, multicenter cohort study of ERM surgery in Japan from March 1, 2023, to March 31, 2027 (UMIN000048472, R-3468-2). Patients who underwent ERM surgery during the study period and agreed to participate in this study will be included. The goal is to have a total of 5,000 eyes surgically treated for ERM. The following data will be collected: age, gender, medical history, subjective symptoms, visual function before and 6 and 12 months after surgery, clinical findings, OCT data, surgical technique, instruments used in surgery, and complications. DISCUSSION The results of this study will support the surgical decisions and procedures in ERM practices.
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Affiliation(s)
- Yuki Kanzaki
- Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama City, Okayama, Japan
| | - Ryo Matoba
- Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama City, Okayama, Japan
| | - Kenji Ishihara
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, Japan
| | - Tetsuro Morita
- Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama City, Okayama, Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, Japan
| | - Shuhei Kimura
- Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama City, Okayama, Japan
| | - Takashi Koto
- Kyorin Eye Center, Department of Ophthalmology, Kyorin University School of Medicine, Mitaka City, Tokyo, Japan
| | - Ryo Kawasaki
- Division of Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan
| | - Takayuki Baba
- Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chuo-ku, Chiba, Japan
| | - Fumiki Okamoto
- Department of Ophthalmology, Graduate School of Medicine, Nippon Medical School, Bunkyo-ku, Tokyo, Japan
| | - Makoto Inoue
- Kyorin Eye Center, Department of Ophthalmology, Kyorin University School of Medicine, Mitaka City, Tokyo, Japan
| | - Taiji Sakamoto
- Department of Ophthalmology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima City, Kagoshima, Japan
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Sakyo-ku, Kyoto, Japan
| | - Yuki Morizane
- Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama City, Okayama, Japan
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Sugimoto M, Kozawa M, Matsui Y, Matsubara H, Kondo M, Sakamoto T. Effects of Perfluorocarbon Use during Rhegmatogenous Retinal Detachment Surgery on Postoperative Outcomes. Ophthalmologica 2023; 246:219-226. [PMID: 37271123 DOI: 10.1159/000531342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023]
Abstract
INTRODUCTION The aim of this study was to determine whether the use of perfluorocarbon liquid (PFCL) affects the rate of retinal re-attachments after an initial attachment by vitrectomy in eyes with rhegmatogenous retinal detachment (RRD). METHODS This was a retrospective, observational, multicenter study of 3,446 eyes registered in the Japanese vitreoretinal surgery treatment information database. Of these, 2,648 eyes had undergone vitrectomy as the first surgery for RRD. The re-attachment rates after the primary vitrectomy with or without PFCL were evaluated. In addition, the significance of factors affecting the re-detachments was determined by univariate and multivariate analyses. The measured outcomes were the rates of re-attachments after the primary vitrectomy with or without the use of PFCL. RESULTS A total of 2,362 eyes in the database were analyzed: 325 had and 2,037 did not have PFCL injected into the vitreous cavity during the vitrectomy. The rate of re-attachments was 91.5% in the PFCL group and 93.2% in the non-PFCL group (p = 0.46, χ2 test). Although there were several risk factors associated with the re-detachments in eyes without PFCL (p < 0.05, Welch's t tests, and Fisher's exact tests), they were not associated in eyes with PFCL use. However, multivariate analyses showed that there was no significant association between the use and the non-use of PFCL in the rate of re-detachments (β = -0.08, p = 0.46). CONCLUSIONS The use of PFCL during the initial vitrectomy for RRD does not affect the rate of re-attachments.
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Affiliation(s)
- Masahiko Sugimoto
- Department of Ophthalmology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Maki Kozawa
- Department of Ophthalmology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Yoshitsugu Matsui
- Department of Ophthalmology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Hisashi Matsubara
- Department of Ophthalmology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Mineo Kondo
- Department of Ophthalmology, Mie University Graduate School of Medicine, Tsu, Japan
| | - Taiji Sakamoto
- Department of Ophthalmology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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Balas M, Vasiliu D, Austria G, Felfeli T. Demographic trends of patients undergoing ophthalmic surgery in Ontario, Canada: a population-based study. BMJ Open Ophthalmol 2023; 8:e001253. [PMID: 37278413 PMCID: PMC10230992 DOI: 10.1136/bmjophth-2023-001253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 05/18/2023] [Indexed: 06/07/2023] Open
Abstract
OBJECTIVE In this study, we investigated the demographic trends of patients undergoing ophthalmic surgeries based on geographic region, priority level, and sex. METHODS AND ANALYSIS This population-based retrospective cohort study used the Ontario Health Wait Times Information System (WTIS) database from 2010 to 2021. The WTIS contains non-emergent surgical case volume and wait time data for 14 different regions, three priority levels (high, medium and low) and six ophthalmic subspecialty procedures. RESULTS Over the study period, on average 83 783 women and 65 555 men underwent ophthalmic surgery annually in Ontario. Overall, women waited an aggregate mean of 4.9 days longer than men to undergo surgery, and this disparity persisted across all geographic and priority stratifications. The average age at the time of surgery has been increasing slowly at a rate of 0.02 years/year (95% CI 0.00 to 0.05), with women being 0.6 years older than men overall. CONCLUSION These findings indicate that women have consistently longer wait times than men. The results of this study may be a sign of systemic sex-based differences that could be affecting women who need to be further explored for health equity.
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Affiliation(s)
- Michael Balas
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Diana Vasiliu
- Health System Intelligence Team, Health System Performance & Support Portfolio, Ontario Health, Toronto, Ontario, Canada
| | - Gener Austria
- Health System Intelligence Team, Health System Performance & Support Portfolio, Ontario Health, Toronto, Ontario, Canada
| | - Tina Felfeli
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
- The Institute of Health Policy Management and Evaluation (IHPME), University of Toronto, Ontario, Canada, Canada
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