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Jung EH, Moon GY. The incidence and risk factors of retinopathy of prematurity in South Korea: A nationwide cohort study. Medicine (Baltimore) 2024; 103:e38080. [PMID: 38728487 PMCID: PMC11081560 DOI: 10.1097/md.0000000000038080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 04/10/2024] [Indexed: 05/12/2024] Open
Abstract
Retinopathy of prematurity (ROP) is a major treatable cause of childhood blindness. Thus, epidemiological investigations are necessary for detecting and preventing ROP. Determining risk factors for ROP are also essential to improve screening methods. Therefore, we aimed to investigate the incidence and risk factors of ROP in Korea. The National Health Insurance Service (NHIS) covers almost all Koreans. Furthermore, the National Health Screening Program for Infants and Children (NHSPIC) is a government-run, health-screening program for children aged < 6 years. We used the NHIS-Infants and Children's Health Screening cohort database to evaluate the incidence of preterm infants and ROP. The database contains data on 84,005 participants, drawn from 5% of the NHSPIC survey on participants born annually during 2008 to 2012. Sociodemographic factors and systemic diseases were assessed as potential risk factors for ROP. We identified 2615 premature infants (3.11%); 846 of them had ROP (cumulative incidence: 32.4%). Although preterm births increased annually in 2008 to 2012, the ROP incidence in preterm infants did not increase by the birth year. Twenty patients (2.4%) with ROP underwent laser photocoagulation or surgery. Extremely low birth weight was a high risk factor (odds ratio [OR] = 49.86, P < .001). Moreover, chorioamnionitis (OR = 2.77, P = .028), respiratory distress syndrome (OR = 4.09, P < .001), apnea (OR = 1.59, P = .008), anemia (OR = 2.41, P < .001), and intraventricular hemorrhage (OR = 2.34, P < .001) were found to be risk factors for ROP. In conclusion, the incidence of premature babies increased between 2008 and 2012. However, the overall incidence of ROP among premature infants remained unchanged by birth year. Our findings revealed the roles of birth weight, respiratory conditions, anemia, and intraventricular hemorrhage in ROP.
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Affiliation(s)
- Eun Hye Jung
- Department of Ophthalmology, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
| | - Geun Young Moon
- Department of Ophthalmology, Nowon Eulji Medical Center, Eulji University, Seoul, Korea
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Chen Y, Wang S, Chen S, Chen X, Han L, Zhong Q, Zhang K. Appropriate dose of intravitreal ranibizumab for ROP: a retrospective study. BMC Ophthalmol 2022; 22:271. [PMID: 35729540 PMCID: PMC9210651 DOI: 10.1186/s12886-022-02489-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 06/09/2022] [Indexed: 11/10/2022] Open
Abstract
Objective To compare the recurrence rate of retinopathy of prematurity (ROP) after treatment with 0.3 mg vs. 0.25 mg ranibizumab. Subjects All patients with ROP who underwent intravitreal injection of ranibizumab in Hainan General Hospital between January 2014 and May 2020 were included in this retrospective study. Methods Eighty-two cases (146 eyes) who received intravitreal injection of 0.25 mg ranibizumab were included in the conventional-dose group, and 59 cases (108 eyes) who received intravitreal injection of 0.3 mg ranibizumab were included in the high-dose group. The two groups were further divided into the 25-28-week, 29-31-week, 32-34-week, and 35-36-week GA subgroups. The differences between the conventional-dose group and the high-dose group in gestational age (GA), birth weight (BW), age at initial injection (weeks), incidence of systemic diseases, the recurrence rate of ROP, and age at retinal vascularization completed (weeks) were analyzed. Results GA, BW, age at initial injection, and the incidence of systemic diseases were not significantly different between the conventional-dose group and the high-dose group (p > 0.05). The recurrence rates of ROP were significantly lower in the 25-28-week, 29-31-week, and 32-34-week subgroups of the high-dose group than in the same subgroups of the conventional-dose group (p < 0.05). Within the conventional-dose group, the recurrence rate of ROP was significantly lower in the 32-34-week and 35-36-week subgroups than in the 25-28-week and 29-31-week subgroups (p < 0.05). Within the high-dose group, the recurrence rate of ROP was not significantly different between the four subgroups (p > 0.05). Retinal vascularization was completed at a later age in the 32-34-week subgroup of the high-dose group than in the 32-34-week subgroup of the conventional-dose group (p < 0.05) but was not significantly different between the two groups at any other GA range (p > 0.05). No severe ocular or systemic complications occurred in any patient. Conclusion Treatment with 0.3 mg ranibizumab can reduce the recurrence rate of ROP without prolonging retinal vascularization or causing serious systemic complications. Therefore, this dose may be an appropriate therapeutic dose for ROP.
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Affiliation(s)
- Yingying Chen
- Hainan General Hospital , Hainan Affiliated Hospital Of Hainan Medical University, Xiuhua road, Hainan General Hospital, Hainan, China
| | - Shaoli Wang
- Hainan General Hospital , Hainan Affiliated Hospital Of Hainan Medical University, Xiuhua road, Hainan General Hospital, Hainan, China
| | - Siying Chen
- Hainan General Hospital , Hainan Affiliated Hospital Of Hainan Medical University, Xiuhua road, Hainan General Hospital, Hainan, China
| | - Xingyue Chen
- Hainan General Hospital , Hainan Affiliated Hospital Of Hainan Medical University, Xiuhua road, Hainan General Hospital, Hainan, China
| | - Lizhen Han
- Hainan General Hospital , Hainan Affiliated Hospital Of Hainan Medical University, Xiuhua road, Hainan General Hospital, Hainan, China
| | - Qionglei Zhong
- Hainan General Hospital , Hainan Affiliated Hospital Of Hainan Medical University, Xiuhua road, Hainan General Hospital, Hainan, China.
| | - Kaiyan Zhang
- Hainan General Hospital , Hainan Affiliated Hospital Of Hainan Medical University, Xiuhua road, Hainan General Hospital, Hainan, China.
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Kang EYC, Lien R, Wang NK, Lai CC, Chen KJ, Hwang YS, Lin CM, Wu WC, Hsu KH. Retinopathy of Prematurity Trends in Taiwan: A 10-Year Nationwide Population Study. ACTA ACUST UNITED AC 2018; 59:3599-3607. [DOI: 10.1167/iovs.18-24020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Eugene Yu-Chuan Kang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Reyin Lien
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
- Division of Neonatology, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Nan-Kai Wang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
- Department of Ophthalmology, Edward S. Harkness Eye Institute, Columbia University, New York, New York, United States
| | - Chi-Chun Lai
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Kuan-Jen Chen
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Yih-Shiou Hwang
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Ciao-Ming Lin
- Laboratory for Epidemiology, Department of Health Care Management, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Chi Wu
- Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taiwan
- Chang Gung University, College of Medicine, Taoyuan, Taiwan
| | - Kuang-Hung Hsu
- Laboratory for Epidemiology, Department of Health Care Management, Chang Gung University, Taoyuan, Taiwan
- Healthy Aging Research Center, Chang Gung University, Taoyuan, Taiwan
- Department of Urology, Chang Gung Memorial Hospital, Linkou, Taiwan
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Chow PPC, Yip WWK, Ho M, Lok JYC, Lau HHW, Young AL. Trends in the incidence of retinopathy of prematurity over a 10-year period. Int Ophthalmol 2018; 39:903-909. [PMID: 29907928 DOI: 10.1007/s10792-018-0896-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 03/16/2018] [Indexed: 10/28/2022]
Abstract
AIM To describe and evaluate the trends in the incidence of retinopathy of prematurity over a 10-year period in a tertiary hospital in Hong Kong. METHODS A retrospective review was performed on all preterm infants screened and/or treated for retinopathy of prematurity from January 2006 to December 2015 at Prince of Wales Hospital, Hong Kong. Preterm infants with incomplete records or transferred-in from other hospitals/region solely for treatment of ROP were excluded. The incidence of any ROP or Type 1 ROP was analysed with gestational age and birth weight over a 10-year period with consecutive 2-year intervals to evaluate the trends. RESULTS Of all 754 infants included in the study, 234 (31.0%) patients had any ROP and 34 (4.5%) infants developed Type 1 ROP. The incidence of any ROP demonstrated a statistically significant decreasing trend over the five consecutive 2-year intervals (p = 0.016), but the incidence trend of Type 1 ROP is not statistically significant. No infants weighing more than 1250 g developed Type 1 ROP. CONCLUSION We observed a decreasing trend in the incidence of any ROP across the 10-year period in a tertiary hospital in Hong Kong, while the incidence of Type 1 ROP remained stable at 4.5%. The factors leading to the trend were unclear. Improved prenatal care, changing proportion of cases with different birth weight and gestational age, oxygenation level practice in neonatal unit may all contribute to the decreasing trend. Revision of screening criteria may be made according to local experience to maximise cost-effectiveness.
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Affiliation(s)
- Prudence P C Chow
- Department of Ophthalmology and Visual Sciences, 1/F Eye Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Wilson W K Yip
- Department of Ophthalmology and Visual Sciences, 1/F Eye Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong.
| | - Mary Ho
- Department of Ophthalmology and Visual Sciences, 1/F Eye Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Julie Y C Lok
- Department of Ophthalmology and Visual Sciences, 1/F Eye Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Henry H W Lau
- Department of Ophthalmology and Visual Sciences, 1/F Eye Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Alvin L Young
- Department of Ophthalmology and Visual Sciences, 1/F Eye Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong
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Darlow BA, Lui K, Kusuda S, Reichman B, Håkansson S, Bassler D, Modi N, Lee SK, Lehtonen L, Vento M, Isayama T, Sjörs G, Helenius KK, Adams M, Rusconi F, Morisaki N, Shah PS. International variations and trends in the treatment for retinopathy of prematurity. Br J Ophthalmol 2017; 101:1399-1404. [PMID: 28270489 DOI: 10.1136/bjophthalmol-2016-310041] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/19/2017] [Accepted: 02/10/2017] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To compare the rates of retinopathy of prematurity (ROP) and treatment of ROP by laser or intravitreal anti-vascular endothelial growth factor among preterm neonates from high-income countries participating in the International Network for Evaluating Outcomes (iNeo) of neonates. METHODS A retrospective cohort study was conducted on extremely preterm infants weighing <1500 g at 240 to 276 weeks' gestation who were admitted to neonatal units in Australia/New Zealand, Canada, Finland, Israel, Japan, Spain, Sweden, Switzerland, Tuscany (Italy) and the UK between 2007 and 2013. Pairwise comparisons of ROP treatment in survivors between countries were evaluated by Poisson and multivariable logistic regression analyses after adjustment for confounders. A composite outcome of death or ROP treatment was compared between countries using logistic regression and standardised ratios. RESULTS Of 48 087 infants included in the analysis, 81.8% survived to 32 weeks postmenstrual age, and 95% of survivors were screened for ROP. Rates of any ROP ranged from 25.2% to 91.0% in Switzerland and Japan, respectively, among those examined. The overall rate of those receiving treatment was 24.9%, which varied from 4.3% to 30.4%. Adjusted risk ratios for ROP treatment were lower for Switzerland in all pairwise comparisons, whereas Japan displayed significantly higher ratios. Comparisons of the composite outcome between countries revealed similar, but less marked differences. CONCLUSIONS Rates of any ROP and ROP treatment varied significantly between iNeo members, while an overall decline in ROP treatment was observed during the study period. It is unclear whether these variations represent differences in care practices, diagnosis and/or treatment thresholds.
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Affiliation(s)
- Brian A Darlow
- Australia and New Zealand Neonatal Network, Department of Paediatrics, University of Otago, Christchurch, New Zealand
| | - Kei Lui
- Australian and New Zealand Neonatal Network, Royal Hospital for Women, National Perinatal Epidemiology and Statistic Unit, University of New South Wales, Randwick, Australia
| | - Satoshi Kusuda
- Neonatal Research Network Japan, Maternal and Perinatal Center, Tokyo Women's Medical University, Kawadacho, Shinjuku, Tokyo, Japan
| | - Brian Reichman
- Israel Neonatal Network, Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Centre, Tel Hashomer, Israel
| | - Stellan Håkansson
- Swedish Neonatal Quality Register, Department of Pediatrics/Neonatal Services, Umeå University Hospital, Umeå, Sweden
| | - Dirk Bassler
- Swiss Neonatal Network, Department of Neonatology, University Hospital Zurich, University of Zurich, Frauenklinikstrasse, Zurich, Switzerland
| | - Neena Modi
- UK Neonatal Collaborative, Neonatal Data Analysis Unit, Section of Neonatal Medicine, Department of Medicine, Imperial College London, Chelsea and Westminster Hospital campus, London, UK
| | - Shoo K Lee
- Department of Paediatrics, Mount Sinai Hospital and University of Toronto, Toronto, Ontario, Canada.,Canadian Neonatal Network, Maternal-Infant Care Research Centre, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Liisa Lehtonen
- Finnish Medical Birth Register and Register of Congenital Malformations, Department of Pediatrics, Turku Univeristy Hospital, Kiinamyllynkatu, Turku, Finland
| | - Maximo Vento
- Spanish Neonatal Network, Health Research Institute La Fe, Avenida Fernando Abril Martorell, Valencia, Spain
| | - Tetsuya Isayama
- Department of Paediatrics, Mount Sinai Hospital and University of Toronto, Toronto, Ontario, Canada
| | - Gunnar Sjörs
- Swedish Neonatal Quality Register, Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Kjell K Helenius
- Finnish Medical Birth Register and Register of Congenital Malformations, Department of Pediatrics, Turku Univeristy Hospital, Kiinamyllynkatu, Turku, Finland
| | - Mark Adams
- Swiss Neonatal Network, Department of Neonatology, University Hospital Zurich, University of Zurich, Frauenklinikstrasse, Zurich, Switzerland
| | - Franca Rusconi
- TIN Toscane Online, Unit of Epidemiology, Meyer Children's University Hospital, Viale Pieraccini, Florence, Italy.,Regional Health Agency, Via Pietro Dazzi, Florence, Italy
| | - Naho Morisaki
- Neonatal Research Network Japan, Department of Social Medicine, National Center for Child Health and Development, Okura, Setagaya, Tokyo, Japan
| | - Prakesh S Shah
- Department of Paediatrics, Mount Sinai Hospital and University of Toronto, Toronto, Ontario, Canada.,Canadian Neonatal Network, Maternal-Infant Care Research Centre, Mount Sinai Hospital, Toronto, Ontario, Canada
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Wang Y, Wu S, Yang Y, Peng F, Li Q, Tian P, Xiang E, Liang H, Wang B, Zhou X, Huang H, Zhou X. Differentially expressed miRNAs in oxygen‑induced retinopathy newborn mouse models. Mol Med Rep 2016; 15:146-152. [PMID: 27922698 PMCID: PMC5355681 DOI: 10.3892/mmr.2016.5993] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 09/08/2016] [Indexed: 12/26/2022] Open
Abstract
The present study aimed to identify microRNAs (miRNAs) involved in regulating retinal neovascularization and retinopathy of prematurity (ROP). A total of 80 healthy C57BL/6 neonatal mice were randomly divided into the oxygen-induced retinopathy (OIR) group (n=40), in which 7-day-old mice were maintained in 75% oxygen conditions for 5 days, or the control group (n=40). Following collection of retinal tissue, retinal angiography and hematoxylin and eosin (H&E) staining were performed. Total RNA was also extracted from retinal tissue, and miRNA microarrays and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) were performed to identify differentially expressed miRNAs in the two groups. Retinal angiography and H&E staining revealed damage to retinas in the OIR group. Compared with the control group, 67 miRNAs were differentially expressed in the OIR group, of which 34 were upregulated and 33 were downregulated. Of these differentially expressed miRNAs, 32 exhibited a fold change ≥2, of which 21 were upregulated and 11 were downregulated. The results of RT-qPCR for miR-130a-3p and miR-5107-5p were in accordance with those of the miRNA microarray. The newly identified miRNAs may be important in the development of ROP, and may provide a basis for future research into the mechanisms of ROP.
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Affiliation(s)
- Yunpeng Wang
- Department of Neonatology, Nanshan People's Hospital, Affiliated to Guangdong Medical University, Shenzhen, Guangdong 518052, P.R. China
| | - Suying Wu
- Department of Neonatology, University Hospital of Hubei Minzu University, Enshi, Hubei 445000, P.R. China
| | - Yang Yang
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Fen Peng
- Department of Neonatology, University Hospital of Hubei Minzu University, Enshi, Hubei 445000, P.R. China
| | - Qintao Li
- Department of Neonatology, University Hospital of Hubei Minzu University, Enshi, Hubei 445000, P.R. China
| | - Peng Tian
- Department of Neonatology, University Hospital of Hubei Minzu University, Enshi, Hubei 445000, P.R. China
| | - Erying Xiang
- Department of Neonatology, University Hospital of Hubei Minzu University, Enshi, Hubei 445000, P.R. China
| | - Honglu Liang
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Beibei Wang
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Xiaoyu Zhou
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
| | - Hua Huang
- Department of Neonatology, University Hospital of Hubei Minzu University, Enshi, Hubei 445000, P.R. China
| | - Xiaoguang Zhou
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, P.R. China
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Gunay M, Tuten A, Sancak S, Celik G, Bardak H, Dincer E, Karatekin G, Erdogan G, Bardak Y. Effect of Single Intravitreal Bevacizumab on Ophthalmic and Middle Cerebral Arterial Blood Flow in Retinopathy of Prematurity. Ophthalmic Res 2016; 55:165-71. [DOI: 10.1159/000443208] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 12/07/2015] [Indexed: 11/19/2022]
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