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García H, Villasis-Keever MA, Zavala-Vargas G, Bravo-Ortiz JC, Pérez-Méndez A, Escamilla-Núñez A. Global Prevalence and Severity of Retinopathy of Prematurity over the Last Four Decades (1985-2021): A Systematic Review and Meta-Analysis. Arch Med Res 2024; 55:102967. [PMID: 38364488 DOI: 10.1016/j.arcmed.2024.102967] [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: 07/06/2023] [Revised: 12/01/2023] [Accepted: 01/31/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND Retinopathy of prematurity (ROP) is a vasoproliferative disease of the retina that occurs in premature infants. The prevalence of ROP reported so far is inconsistent. AIM To conduct a systematic review to describe the trend of ROP prevalence between 1985 and 2021, and to determine the influence of countries' economic conditions on ROP prevalence. METHODS We searched PubMed, Embase, and Google Scholar for studies published between January 1985 and December 2021 using the following MeSH terms: "retinopathy of prematurity", "ROP", "incidence", and "prevalence". Two independent reviewers examined the articles to select studies that met the selection criteria and performed data extraction and study quality assessment. For the meta-analysis, the pooled prevalence was calculated using a random-effects model and R software. RESULTS Of 5,250 titles and abstracts, 139 original studies met the inclusion criteria; a total of 121,618 premature infants were included in these studies. The pooled prevalence of ROP was 31.9% (95% confidence interval [CI] 29.0-34.8) and that of severe ROP was 7.5% (6.5-8.7). In general, no significant differences in prevalence were found over the four decades; however, we found a higher prevalence in premature infants ≤28 weeks of gestational age. In addition, the highest ROP prevalence was found in lower-middle-income countries with high mortality rates. In contrast, the highest severe ROP prevalence was found in high-income countries. CONCLUSION ROP remains a common cause of morbidity in premature infants worldwide. Therefore, it seems necessary to maintain early identification strategies for patients at higher risk, particularly in low- and middle-income countries.
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Affiliation(s)
- Heladia García
- Research Unit in Analysis and Synthesis of Evidence, Pediatrics Hospital, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico.
| | - Miguel Angel Villasis-Keever
- Research Unit in Analysis and Synthesis of Evidence, Pediatrics Hospital, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Georgina Zavala-Vargas
- Research Unit in Analysis and Synthesis of Evidence, Pediatrics Hospital, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Juan Carlos Bravo-Ortiz
- Pediatric Ophthalmology Service, Pediatrics Hospital, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Ayari Pérez-Méndez
- Research Unit in Analysis and Synthesis of Evidence, Pediatrics Hospital, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
| | - Alberto Escamilla-Núñez
- Research Unit in Analysis and Synthesis of Evidence, Pediatrics Hospital, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, Mexico
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Kitt E, Hayes M, Congdon M, Ballester L, Sewawa KB, Mulale U, Mazhani L, Arscott-Mills T, Steenhoff A, Coffin S. Risk factors for mortality in a hospitalised neonatal cohort in Botswana. BMJ Open 2022; 12:e062776. [PMID: 36691117 PMCID: PMC9454043 DOI: 10.1136/bmjopen-2022-062776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 07/24/2022] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVES A disproportionate number of neonatal deaths occur in low/middle-income countries, with sepsis a leading contributor of mortality. In this study, we investigate risk factors for mortality in a cohort of high-risk hospitalised neonates in Botswana. Independent predictors for mortality for infants experiencing either a sepsis or a non-sepsis-related death are described. METHODS This is a prospective observational cohort study with infants enrolled from July to October 2018 at the neonatal unit (NNU) of Princess Marina Hospital (PMH) in Gaborone, Botswana. Data on demographic, clinical and unit-specific variables were obtained. Neonates were followed to death or discharge, including transfer to another hospital. Death was determined to be infectious versus non-infectious based on primary diagnosis listed on day of death by lead clinician on duty. RESULTS Our full cohort consisted of 229 patients. The overall death rate was 227 per 1000 live births, with cumulative proportion of deaths of 22.7% (n=47). Univariate analysis revealed that sepsis, extremely low birth weight (ELBW) status, hypoxic ischaemic encephalopathy, critical illness and infants born at home were associated with an increased risk of all-cause mortality. Our multivariate model revealed that critical illness (HR 3.07, 95% CI 1.56 to 6.03) and being born at home (HR 4.82, 95% CI 1.76 to 13.19) were independently associated with all-cause mortality. Low birth weight status was independently associated with a decreased risk of mortality (HR 0.24, 95% CI 0.11 to 0.53). There was a high burden of infection in the cohort with more than half of infants (140, 61.14%) diagnosed with sepsis at least once during their NNU admission. Approximately 20% (n=25) of infants with sepsis died before discharge. Our univariate subanalysis of the sepsis cohort revealed that ELBW and critical illness were associated with an increased risk of death. These findings persisted in the multivariate model with HR 3.60 (95% CI 1.11 to 11.71) and HR 2.39 (95% CI 1 to 5.77), respectively. CONCLUSIONS High rates of neonatal mortality were noted. Urgent interventions are needed to improve survival rates at PMH NNU and to prioritise care for critically ill infants at time of NNU admission, particularly those born at home and/or of ELBW.
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Affiliation(s)
- Eimear Kitt
- Division of Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Global Health Center, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Molly Hayes
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Morgan Congdon
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Global Health Center, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Section of Hospital Medicine, CHOP, Philadelphia, Pennsylvania, USA
| | - Lance Ballester
- Biostatistics and Data Management Core, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Kgotlaetsile B Sewawa
- Department of Paediatric & Adolescent Health, Faculty of Medicine, University of Botswana, Gaborone, South-East District, Botswana
| | - Unami Mulale
- Department of Paediatric & Adolescent Health, Faculty of Medicine, University of Botswana, Gaborone, South-East District, Botswana
| | - Loeto Mazhani
- Department of Paediatric & Adolescent Health, Faculty of Medicine, University of Botswana, Gaborone, South-East District, Botswana
| | - Tonya Arscott-Mills
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- General Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Andrew Steenhoff
- Division of Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Global Health Center, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Susan Coffin
- Division of Infectious Diseases, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Global Health Center, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
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Tawfik S, Mansour A, Selim NL, Habib AM, Fouad YA, Tawfik MA, Al-Feky M. Analysis of a two-year independent screening effort for retinopathy of prematurity in rural Egypt. BMC Ophthalmol 2021; 21:445. [PMID: 34961497 PMCID: PMC8711162 DOI: 10.1186/s12886-021-02193-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 11/24/2021] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND The third epidemic of retinopathy of prematurity (ROP) has majorly involved middle income countries in which tailored screening and local guidelines require development. The data regarding ROP prevalence and cutoff numbers for screening in Egypt are lacking. METHODS Retrospective analysis of an independent screening effort spanning 2 years (February 2019 to February 2021) and involving 32 neonatal care units within Sharkia governorate, Egypt. Infants of gestational age (GA) ≤ 34 weeks and/or birth weight (BW) ≤ 2000 g were included, as well as those with unstable clinical course. Two eyecare centers located in Sharkia and Cairo governorates served as referral centers for any required interventions. RESULTS Of the 276 screened infants, 133 (48.2%) had some form of ROP that was bilateral in 127 (95.5%) of them. Aggressive posterior ROP (AP-ROP) was detected in both eyes of 24 infants (8.7%). The median (IQR) GA of infants with ROP was 32 (30-34) weeks, and the median (IQR) BW was 1600 (1350-2000) g. Sixty-three infants (47.4%) required treatment. Of the total 84 eyes that primarily were treated, 73 (86.9%) received intravitreal ranibizumab, 8 (9.5%) underwent laser ablation therapy, and 3 eyes (3.6%) underwent surgery. Recurrence rate was 16.7% (14 eyes). Final outcome was favorable in 83 eyes (98.8%). Applying the American Academy criteria would have led to the missing of 36.8% of infants with ROP and 28.6% of those requiring treatment in our sample. CONCLUSION The incidence of both ROP and AP-ROP in the Egyptian rural setting appears to be in the high end of global reported rates. Prevention measures should urgently be planned and implemented.
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Affiliation(s)
- Sara Tawfik
- Al Ferdaws Eye Hospital, Sharkia, Egypt
- Al Mashreq Eye Center, 102 El-Sayed El-Merghany St., Cairo, 11774, Egypt
| | - Ahmed Mansour
- Al Mashreq Eye Center, 102 El-Sayed El-Merghany St., Cairo, 11774, Egypt
- Department of Ophthalmology, Ain Shams University Hospitals, Cairo, Egypt
| | - Norhan Lotfy Selim
- Al Ferdaws Eye Hospital, Sharkia, Egypt
- Al Mashreq Eye Center, 102 El-Sayed El-Merghany St., Cairo, 11774, Egypt
| | - Ahmed M Habib
- Al Mashreq Eye Center, 102 El-Sayed El-Merghany St., Cairo, 11774, Egypt
- Department of Ophthalmology, Ain Shams University Hospitals, Cairo, Egypt
| | - Yousef A Fouad
- Al Mashreq Eye Center, 102 El-Sayed El-Merghany St., Cairo, 11774, Egypt.
- Department of Ophthalmology, Ain Shams University Hospitals, Cairo, Egypt.
| | - Mohamed A Tawfik
- Al Ferdaws Eye Hospital, Sharkia, Egypt
- Al Mashreq Eye Center, 102 El-Sayed El-Merghany St., Cairo, 11774, Egypt
- Memorial Institute for Ophthalmic Research, Giza, Egypt
| | - Mariam Al-Feky
- Al Mashreq Eye Center, 102 El-Sayed El-Merghany St., Cairo, 11774, Egypt
- Department of Ophthalmology, Ain Shams University Hospitals, Cairo, Egypt
- Watany Eye Hospital, Cairo, Egypt
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Herrod SK, Adio A, Isenberg SJ, Lambert SR. Blindness Secondary to Retinopathy of Prematurity in Sub-Saharan Africa. Ophthalmic Epidemiol 2021; 29:156-163. [PMID: 33818253 PMCID: PMC10186862 DOI: 10.1080/09286586.2021.1910315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Purpose: Retinopathy of Prematurity (ROP) has been suggested to be increasing in Africa. However, it was only previously documented as a cause of blindness in 8 of 48 (16.7%) sub-Saharan African countries. The purpose of this study was to better understand the magnitude and breadth of blindness from ROP in sub-Saharan Africa.Methods: A questionnaire was sent to 455 ophthalmologists practicing in sub-Saharan Africa; the questionnaire was available in English, French and Portuguese.Results: Responses were received from 132 of 455 (29%) ophthalmologists to whom the survey was sent. Eighty-three respondents were identified as ROP-involved ophthalmologists and were from 26 of 48 (54%) sub-Saharan African countries. Ophthalmologists in 23 countries reported that they examined at least one child who was blind from ROP during the last 5 years. Sixteen of these countries had not previously reported cases of blindness from ROP in the literature. The perceived occurrence of Type 1 or more severe ROP was reported to be increasing by 31 of 77 (40%) ROP-involved ophthalmologists. ROP-involved pediatric ophthalmologists and retinal surgeons reported the number of infants they examined annually with Type 1 or more severe ROP increased from a median of 1 (range: 0-15) to a median of 4 (range: 0-40) from 2015 to 2019. ROP was estimated to be the cause of blindness for 10% of all blind children examined by ROP-involved pediatric ophthalmologists and retinal surgeons during 2019.Conclusions: ROP is becoming a more important and widespread cause of childhood blindness in sub-Saharan Africa.
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Affiliation(s)
- Scott K Herrod
- Department of Public Health, Brigham Young University, Provo, Utah, USA
| | - Adedayo Adio
- Department of Ophthalmology, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria
| | - Sherwin J Isenberg
- Department of Ophthalmology, Stein Eye Institute, UCLA School of Medicine, Los Angeles, California, USA
| | - Scott R Lambert
- Department of Ophthalmology, Stanford University School of Medicine, Palo Alto, California, USA
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Oxygen management among infants in neonatal units in sub-Saharan Africa: a cross-sectional survey. J Perinatol 2021; 41:2631-2638. [PMID: 33772113 PMCID: PMC7995672 DOI: 10.1038/s41372-021-01040-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/25/2021] [Accepted: 03/05/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To provide more comprehensive data on the management of oxygen supplementation in neonates in sub-Saharan Africa. STUDY DESIGN An online survey on the management of oxygen supplementation for infants in neonatal units was sent to 278 healthcare personnel in sub-Saharan Africa. RESULTS One hundred and nine responses from 82 neonatal care units in 54% (26/48) sub-Saharan African countries were received. All units had the capacity to provide oxygen supplementation. However, only 50% (38/76) had access to blend oxygen with medical air and 1% (1/75) had the capacity to blend oxygen/air for every infant. Although 96% (72/75) of units could monitor oxygen saturation, monitoring was mostly intermittent and only 32% (24/75) were able to monitor oxygen saturation in every infant receiving oxygen supplementation. CONCLUSIONS Findings indicate that oxygen supplementation is inadequately managed in neonatal units in sub-Saharan Africa, which may put infants at risk of developing severe ROP.
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