1
|
Rabelo BS, de Alvarenga KAF, Fernando Lopes L, Guimarães Ribeiro A, de Sá Rodrigues KE. Strategies to improve diagnosis and access to treatment of retinoblastoma in low- and middle-income countries: A systematic review. Pediatr Blood Cancer 2024; 71:e30987. [PMID: 38594882 DOI: 10.1002/pbc.30987] [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: 01/17/2024] [Revised: 03/06/2024] [Accepted: 03/18/2024] [Indexed: 04/11/2024]
Abstract
Retinoblastoma, the most common intraocular tumor in childhood, still faces challenges in diagnosis and treatment, particularly in low- and middle-income countries. Identifying strategies to improve the time to diagnosis and access to treatment is crucial to enhance survival rates and preserve ocular health. We conducted a systematic review to identify interventions that have demonstrated potential in addressing these challenges. We performed a comprehensive search across databases until March 2023. Out of the studies reviewed, 21 met the inclusion criteria and were categorized into five main areas: surveillance strategies, genetic counseling, education, public assistance, and international partnership. Despite the obstacles faced, the initiatives identified in this review present acts toward improving the time to diagnosis and access to treatment for retinoblastoma. Based on the extracted data, we propose a comprehensive chain of initiatives. We firmly believe that implementing this chain of initiatives can lead to improved clinical outcomes for retinoblastoma patients.
Collapse
Affiliation(s)
- Bruna Salgado Rabelo
- Hospital do Câncer de Barretos, Barretos, São Paulo, Brazil
- Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Hospital Felício Rocho, Belo Horizonte, Minas Gerais, Brazil
| | - Kevin Augusto Farias de Alvarenga
- Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Hospital Felício Rocho, Belo Horizonte, Minas Gerais, Brazil
| | | | | | | |
Collapse
|
2
|
Atima MO, Idakwo U, Komolafe O, Eisuke S, Shintaro N, Balogun EO, Dingwoke EJ, Orugun AJ, Ukumobe KO, Pam JD, Aladiuba A. Presentation pattern and survival rate of retinoblastoma following chemotherapy: a prospective study. BMC Pediatr 2023; 23:538. [PMID: 37891551 PMCID: PMC10612210 DOI: 10.1186/s12887-023-04347-w] [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: 03/15/2023] [Accepted: 10/04/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND This study presents the clinical pattern of presentation and survival rate of retinoblastoma, which is the most prevalent form of pediatric intraocular cancer. The aim of this study is to provide baseline information about the clinical presentation and management of retinoblastoma at ECWA Eye Hospital. Additionally, the study identifies priority areas for enhancing medical care for children diagnosed with this cancer. ECWA Eye Hospital, situated in Kano State, Nigeria, is a specialized eye center located in the North-Western region of the country. METHODS A prospective study spanning five years was conducted at ECWA Eye Hospital to investigate clinically diagnosed cases of retinoblastoma. The study took place from January 2018 to December 2022. The patients received standardized pre-medication and chemotherapy protocols for retinoblastoma. Subsequently, a five-year follow-up was conducted to monitor the patients' progress. The collected data was analyzed, descriptive statistics were generated, and the survival rate was calculated. RESULTS During the five-year study period, a total of 35 cases of retinoblastoma were diagnosed. The patients had an average age of 3.21 ± 1.32 years. The most common presentation patterns observed were fungating ocular mass and proptosis. Among the cases, there were 10 instances of bilateral proptosis and 25 instances of unilateral proptosis. While no patients exhibited bilateral leukocoria, eight cases of unilateral leukocoria with anterior segment seedlings were identified. The additional patterns of presentation are proptosis, leukocoria, fungating orbital mass, redness and loss of vision. The mortality rate was 80% (28 cases), while the survival rate was 20% (7 cases). Notably, all the survivors had unilateral retinoblastoma. CONCLUSION The majority of cases observed at ECWA Eye Hospital involve advanced retinoblastoma. In low-resource settings where alternative treatment options are limited, chemotherapy is considered a viable treatment option. Early presentation of retinoblastoma in patients may lead to a higher survival rate when chemotherapy is administered.
Collapse
Affiliation(s)
| | | | | | - Shimizu Eisuke
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Nakayama Shintaro
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan
| | - Emmanuel Oluwadare Balogun
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Kaduna State, Nigeria
| | - Emeka John Dingwoke
- Department of Biochemistry, Faculty of Life Sciences, Ahmadu Bello University, Zaria, Kaduna State, Nigeria
| | | | | | | | | |
Collapse
|
3
|
Elder AJ, Alazawi H, Shafaq F, Ayyad A, Hazin R. Teleoncology: Novel Approaches for Improving Cancer Care in North America. Cureus 2023; 15:e43562. [PMID: 37719501 PMCID: PMC10502915 DOI: 10.7759/cureus.43562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2023] [Indexed: 09/19/2023] Open
Abstract
Due to widespread healthcare workforce shortages, many patients living in remote and rural North America currently have reduced access to various medical specialists. These shortages, coupled with the aging North American population, highlight the need to transform contemporary healthcare delivery systems. The exchange of medical information via telecommunication technology, known as telemedicine, offers promising solutions to address the medical needs of an aging population and the increased demand for specialty medical services. This progressive movement has also improved access to quality health care by mitigating the current shortage of trained subspecialists. Minimizing the effects of these shortages is particularly urgent in the care of cancer patients, many of whom require regular follow-up and close monitoring. Cancer patients living in remote areas of North America have reduced access to specialized care and, thus, have unacceptably high mortality and morbidity rates. Teleoncology, or the use of telemedicine to provide oncology services remotely, has the ability to improve access to high-quality care and assist in alleviating the burden of some of the severe adverse events associated with cancer. In this review, the authors describe how recent advances in teleoncology can reduce healthcare disparities and improve future cancer care in North America.
Collapse
Affiliation(s)
- Adam J Elder
- Department of Medical Education, Wayne State University School of Medicine, Detroit, USA
| | - Hussein Alazawi
- Department of Medical Education, Michigan State University College of Osteopathic Medicine, East Lansing, USA
| | - Fareshta Shafaq
- Department of Medical Education, American University of the Caribbean, Cupecoy, SXM
| | - Adam Ayyad
- Department of Medical Education, Ross University School of Medicine, Bridgetown, BRB
| | - Ribhi Hazin
- Department of Internal Medicine, Wayne State University School of Medicine, Detroit, USA
| |
Collapse
|
4
|
Limbu B, Kafle PA, Lamichanne DH, Pant SR, Shakya S, Rasaily SB. Epidemiological and Clinical Presentation of Retinoblastoma among Nepalese Children in 2019. South Asian J Cancer 2023; 12:199-205. [PMID: 37969676 PMCID: PMC10635776 DOI: 10.1055/s-0042-1757581] [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: 11/05/2022] Open
Abstract
Suresh B.K. RasailyObjectives Retinoblastoma (RB) is rare but potentially fatal if left untreated. This study aimed to evaluate the epidemiological profile, clinical manifestation, classification, and affordability of RB treatment among Nepalese children in the year 2019. Materials and Method A multicentric, multiethnic hospital-based cross-sectional study after ethical approval from the National Health Research Council was conducted from January 2019 to December 2019 by incorporating ophthalmologists all over the nation. Twenty-seven RB centers were selected. All the RB presented in the RB centers either newly diagnosed or ongoing treatment consented to the study were included and failed to consent for the study, RB survivors were excluded from the study. Data based on demographic profile, clinical manifestation, ethnical and geographical distribution, and treatment received were collected in the customized Google Form. Each case was classified at the time of diagnosis as per the International Classification of Retinoblastoma groups and different treatment modalities offered as per grouping and staging. The affordability of treatment was calculated using a catastrophic approach. Statistical Analysis Data were entered into Microsoft Excel 2010 and analyzed using Statistical Package for Social Sciences version 20. Result A total of 34 RB cases, 21 (61.76%) in ongoing treatment group and 13 (38.2%) in newly diagnosed group presented in the RB centers. Out of total, 32 (64.7%) had unilateral and 12 (35.3%) cases had bilateral involvement. The majority of patients was from Province 1 (35.3%) and belonged to the upper caste (38.2%). Leukocoria was the most common presentation (73.9%) followed by proptosis, red eye, and phthisis bulbi. More than 75% patients presented at advanced group D (54%) and E (21%) and stage 0 (90%). More than 90% of patients received systemic chemotherapy, and 42.6% received transpupillary thermotherapy. The average cost of RB treatment was estimated to be 521% of the nonfood expense of the family which is unaffordable to almost all cases (100%). Conclusion Leukocoria is the most common mode of clinical presentation in both unilateral and bilateral RBs. Early diagnosis and appropriate treatment are key to success for saving life, sight, and eye. However, community awareness programs against RB, active referral networks, and the establishment of chemotherapy centers with trained human resources are needed to reduce loss of life, sight, and eye.
Collapse
Affiliation(s)
- Ben Limbu
- Department of Oculoplastic and Reconstructive Surgery, Tilganga Institute of Ophthalmology, National Academy of Medical Sciences, Kathmandu, Nepal
| | - Prerna Arjyal Kafle
- Department of Oculoplastic and Reconstructive Surgery, Biratnagar Eye Hospital, Biratnagar, Nepal
| | - Diwa Hamal Lamichanne
- Department of Oculoplastic and Reconstructive Surgery, Biratnagar Eye Hospital, Biratnagar, Nepal
| | - Suresh Raj Pant
- Department of Oculoplastic and Reconstructive Surgery, Geta Eye Hospital, Attariya, Nepal
| | - Samyek Shakya
- Department of Vitreoretinal Surgery, Geta Eye Hospital, Attariya, Nepal
| | | |
Collapse
|
5
|
Fowokan A, Afungchwi GM, Renner L, Freccero P, Gupta S, Denburg A. Evaluation of a Health Care Worker Training Intervention to Improve the Early Diagnosis and Referral of Childhood Cancers in Ghana: A Qualitative Descriptive Study. JCO Glob Oncol 2022; 8:e2200151. [PMID: 36103639 PMCID: PMC9812462 DOI: 10.1200/go.22.00151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
PURPOSE This study sought to (1) evaluate the perceived effectiveness of an early childhood cancer warning signs and symptoms (EWSS) training intervention on health care worker (HCW) knowledge, attitudes, and clinical practice; (2) evaluate the ease of implementation of training received, including potential barriers and facilitators; and (3) provide insights into program improvements for future iterations of the intervention. METHOD Using a qualitative descriptive study design, we conducted in-depth, semistructured interviews with 23 purposively sampled Ghanaian HCW recipients of the EWSS training intervention. We undertook iterative thematic analysis of data concurrently with interviews and used a modified version of the theoretical framework of acceptability to guide the evaluation of the training intervention. RESULTS We identified six themes-affective attitude, burden, intervention coherence, perceived effectiveness, self-efficacy, and quality improvement-that structure participant perceptions of the effectiveness of the EWSS training. Participants generally had a positive attitude to the training intervention, found the content relatively easy to understand, and communicated the positive impacts of the training on their day-to-day practice. However, they also identified patient- and system-level challenges to the real-world implementation of intervention components, including patients' cultural and religious beliefs about illnesses, patients' financial constraints, and inadequately funded health systems. CONCLUSION Our findings suggest that although an HCW-focused training intervention has the potential to improve timely diagnosis and referral for childhood cancers in Ghana and comparable health system contexts, complementary interventions to address patient- and system-level implementation challenges are required to translate improvements in HCW knowledge to sustained impact on health outcomes for children with cancer.
Collapse
Affiliation(s)
- Adeleke Fowokan
- Department of Child Health and Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada
| | | | - Lorna Renner
- University of Ghana Medical School, Korle Bu Teaching Hospital, Accra, Greater Accra, Ghana
| | | | - Sumit Gupta
- Department of Child Health and Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada,Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Avram Denburg
- Department of Child Health and Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada,Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada,Avram Denburg, MD, PhD, Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, M5G 1X8 Canada; e-mail:
| |
Collapse
|
6
|
Elfalah M, AlNawaiseh T, Atoum D, AlKhassawneh A, Mohammad M, AlNawaiseh I, Yousef YA. Improving Medical Students’ Awareness About Retinoblastoma: A Practical Strategy. Clin Ophthalmol 2022; 16:1807-1814. [PMID: 35698597 PMCID: PMC9188477 DOI: 10.2147/opth.s355876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 02/11/2022] [Indexed: 01/27/2023] Open
Abstract
Background Eye salvage and survival for patients with retinoblastoma (RB) can be improved by enhancement of early diagnosis. This study aims to investigate the impact of modifying the teaching curriculum for medical students about awareness of this condition. Methods Medical students completed a questionnaire about RB, preluded by a photograph of a child with leukocoria. Participants were divided into group A (138 participants) and group B (151 participants) who are medical students who have completed the ophthalmology rotation before and after implementing modifications on teaching curriculum that focuses on the red flags of RB consecutively. Results Most participants considered leukocoria an abnormal sign. Group A had significantly lower knowledge about diagnosis for RB (P=0.0001). Participants scored higher in group B for the critical questions, such as knowing that RB is a fatal disease (P=0.041) that needs urgent treatment (P=0.042). Only three (2%) students adopted the “watch and wait” strategy in group B, compared to 16 (12%) in group A (P=0.0013). Overall, proficiency score (≥90%) was achieved by 12 (8%) students in group B, but only three (2%) students in group A. Only 41 (27%) students in group B, compared to 90 (65%) students in group A, failed to obtain a sufficiency score (≥70%) in the questionnaire. Conclusion Modifying the teaching curriculum of the ophthalmology rotation with an intensified focus on awareness of the life-threatening condition retinoblastoma improved medical students’ knowledge of this malignancy. This intervention is one of the modalities that can lead to a reduction in diagnosis and referral delays and improvement in outcome and survival.
Collapse
Affiliation(s)
| | | | - Dima Atoum
- School of Medicine, AlYarmouk University, Irbid, Jordan
| | | | - Mona Mohammad
- Department of Surgery (Ophthalmology), King Hussein Cancer Center, Amman, Jordan
| | - Ibrahim AlNawaiseh
- Department of Surgery (Ophthalmology), King Hussein Cancer Center, Amman, Jordan
| | - Yacoub A Yousef
- Department of Surgery (Ophthalmology), King Hussein Cancer Center, Amman, Jordan
- Correspondence: Yacoub A Yousef, Department of Surgery (Ophthalmology), King Hussein Cancer Center, Queen Rania Al-Abdullah Street, P.O Box 1269, Amman, 11941, Jordan, Tel +00962787228749, Email
| |
Collapse
|
7
|
Wong ES, Choy RW, Zhang Y, Chu WK, Chen LJ, Pang CP, Yam JC. Global retinoblastoma survival and globe preservation: a systematic review and meta-analysis of associations with socioeconomic and health-care factors. THE LANCET GLOBAL HEALTH 2022; 10:e380-e389. [DOI: 10.1016/s2214-109x(21)00555-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 11/16/2021] [Accepted: 11/22/2021] [Indexed: 12/17/2022] Open
|
8
|
López JP, Barriga MM, Lecea D, Parada C, Stephens G. Ophthalmology examination during well-child visits in primary care health centres: Knowledge and difficulties experienced by health workers. ARCHIVOS DE LA SOCIEDAD ESPANOLA DE OFTALMOLOGIA 2021; 96:26-31. [PMID: 33067032 DOI: 10.1016/j.oftal.2020.05.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/13/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
INTRODUCTION The red reflex examination (RRE) and visual acuity testing (VA) is a mandatory part of the examination during the well-child visits (WCV) in primary health care centres of the public system of health in Chile. The eye examination is aimed at the early detection of severe eye diseases in children, such as retinoblastoma, congenital cataracts, and amblyopia. The knowledge and difficulties experienced by health workers in primary care health centres for evaluating the red reflex during WCV in Chile is unknown. MATERIAL AND METHODS A survey was performed in primary community health centres of XXX Santiago de Chile. RESULTS The WCV were mainly performed by physicians (45.2%) and nurses (35.8%). Only 34% of health workers performed the red reflex test, and 42.3% checked VA during the WCV. The main reasons for not doing it include the lack of direct ophthalmoscopes and VA charts (55.2% and 43.9%, respectively) at their centres, and not having the knowledge or skills (29.3% and 22%, respectively) to properly perform these clinical tests. CONCLUSION In this series, the eye examination of children attending WCV was unfrequently performed. A better implementation of the health centres and training of the health workers are needed in order to improve the access and quality of the paediatric eye examination in primary health care institutions in Chile.
Collapse
Affiliation(s)
- J P López
- Clínica Alemana de Santiago-Universidad del Desarrollo, Santiago, Chile.
| | - M M Barriga
- Facultad de Medicina, Universidad del Desarrollo-Clínica Alemana, Santiago, Chile
| | - D Lecea
- Facultad de Medicina, Universidad del Desarrollo-Clínica Alemana, Santiago, Chile
| | - C Parada
- Facultad de Medicina, Universidad del Desarrollo-Clínica Alemana, Santiago, Chile
| | - G Stephens
- Departamento de Gestión de Redes, SSMS, Santiago, Chile
| |
Collapse
|
9
|
Zabih W, Thota AB, Mbah G, Freccero P, Gupta S, Denburg AE. Interventions to improve early detection of childhood cancer in low- and middle-income countries: A systematic review. Pediatr Blood Cancer 2020; 67:e28761. [PMID: 33037867 DOI: 10.1002/pbc.28761] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/16/2020] [Accepted: 09/22/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Childhood cancer outcomes in low- and middle-income countries (LMICs) lag behind those in high-income countries (HICs), in part due to late presentation and diagnosis. Though several interventions targeting early detection of childhood cancer have been implemented in LMICs, little is known about their efficacy. METHODS We conducted a systematic review to identify studies describing such interventions. We searched multiple databases from inception to December 4, 2019. Studies were included if they reported on LMIC interventions focused on: (a) training of health care providers on early recognition of childhood cancer, or (ii) public awareness campaigns. We used preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines to conduct our review. The risk of bias in nonrandomized studies of interventions (ROBINS-I) checklist was used to assess quality of studies. RESULTS Twelve studies met inclusion criteria (n = 5 full text, n = 7 abstract only). Five studies focused on retinoblastoma only, while the others focused on all types of childhood cancer. The majority studied multiple interventions of which early detection was one component, but reported overall outcomes. All identified studies used pre-post evaluative designs to measure efficacy. Five studies reported statistically significant results postintervention: decrease in extraocular spread of retinoblastoma, decrease in rates of refusal/abandonment of treatment, increase in number of new referrals, increase in knowledge, and an absolute increase in median 5-year survival. Other studies reported improvements without tests of statistical significance. Two studies reported no difference in survival postintervention. The ROBINS-I checklist indicated that all studies were at serious risk of bias. CONCLUSION Though current evidence suggests that LMIC interventions targeting early detection of childhood cancer through health professional training and/or public awareness campaigns may be effective, this evidence is limited and of poor quality. Robust trials or quasi-experimental designs with long-term follow up are needed to identify the most effective interventions. Such studies will facilitate and inform the widespread uptake of early detection interventions across LMIC settings.
Collapse
Affiliation(s)
- Weeda Zabih
- Division of Paediatric Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Anilkrishna B Thota
- Division of Paediatric Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Glenn Mbah
- Cameroon Baptist Convention Hospitals, Mbingo, Cameroon
| | | | - Sumit Gupta
- Division of Paediatric Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Avram E Denburg
- Division of Paediatric Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
10
|
Global Retinoblastoma Treatment Outcomes: Association with National Income Level. Ophthalmology 2020; 128:740-753. [PMID: 33007338 DOI: 10.1016/j.ophtha.2020.09.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/17/2020] [Accepted: 09/21/2020] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To compare metastasis-related mortality, local treatment failure, and globe salvage after retinoblastoma in countries with different national income levels. DESIGN International, multicenter, registry-based retrospective case series. PARTICIPANTS Two thousand one hundred ninety patients, 18 ophthalmic oncology centers, and 13 countries on 6 continents. METHODS Multicenter registry-based data were pooled from retinoblastoma patients enrolled between January 2001 and December 2013. Adequate data to allow American Joint Committee on Cancer staging, eighth edition, and analysis for the main outcome measures were available for 2085 patients. Each country was classified by national income level, as defined by the 2017 United Nations World Population Prospects, and included high-income countries (HICs), upper middle-income countries (UMICs), and lower middle-income countries (LMICs). Patient survival was estimated with the Kaplan-Meier method. Logistic and Cox proportional hazards regression models were used to determine associations between national income and treatment outcomes. MAIN OUTCOME MEASURES Metastasis-related mortality and local treatment failure (defined as use of secondary enucleation or external beam radiation therapy). RESULTS Most (60%) study patients resided in UMICs and LMICs. The global median age at diagnosis was 17.0 months and higher in UMICs (20.0 months) and LMICs (20.0 months) than HICs (14.0 months; P < 0.001). Patients in UMICs and LMICs reported higher rates of disease-specific metastasis-related mortality and local treatment failure. As compared with HICs, metastasis-related mortality was 10.3-fold higher for UMICs and 9.3-fold higher for LMICs, and the risk for local treatment failure was 2.2-fold and 1.6-fold higher, respectively (all P < 0.001). CONCLUSIONS This international, multicenter, registry-based analysis of retinoblastoma management revealed that lower national income levels were associated with significantly higher rates of metastasis-related mortality, local treatment failure, and lower globe salvage.
Collapse
|
11
|
Fabian ID, Stacey AW, Foster A, Kivelä TT, Munier FL, Keren-Froim N, Gomel N, Cassoux N, Sagoo MS, Reddy MA, Harby LA, Zondervan M, Bascaran C, Abdallah E, Abdullahi SU, Boubacar SA, Ademola-Popoola DS, Adio A, Aghaji AE, Portabella SA, Alfa Bio AI, Ali AM, Alia DB, All-Eriksson C, Almeida AA, Alsawidi KM, Antonino R, Astbury NJ, Atsiaya R, Balaguer J, Balwierz W, Barranco H, Popovic MB, Benmiloud S, Guebessi NB, Berete RC, Biddulph SJ, Biewald EM, Blum S, Bobrova N, Boehme M, Bornfeld N, Bouda GC, Bouguila H, Boumedane A, Brichard BG, L MC, Castela G, Català-Mora J, Chantada GL, Chernodrinska VS, Chiwanga FS, Cieslik K, Comsa C, Correa Llano MG, Csóka M, Da Gama IV, Davidson A, Potter PD, Desjardins L, Dragomir MD, Bruyn MD, Kettani AE, Elbahi AM, Elgalaly D, Elhaddad AM, Ali Elhassan MM, Elzembely MM, Essuman VA, Evina TGA, Fasina O, Fernández-Teijeiro A, Gandiwa M, Aldana DG, Geel JA, Gizachew Z, Gregersen PA, Guedenon KM, Hadjistilianou T, Hassan S, Hederova S, Hessissen L, Hordofa DF, Hummlen M, Husakova K, Ida R, Ilic VR, Jenkinson H, Amani Kabesha TB, Kabore RL, Kalinaki A, Kapelushnik N, Kardava T, Kemilev PK, Kepak T, Khotenashvili Z, Klett A, Kosh Komba Palet JE, Krivaitiene D, Kruger M, Kyara A, Lachmann ES, Latinović S, Lecuona K, Lukamba RM, Lumbroso L, Lysytsia L, Maka E, Makan M, Manda C, Begue NM, Matende IO, Matua M, Mayet I, Mbumba FB, Mengesha AA, Midena E, Mndeme FG, Mohamedani AA, Moll AC, Moreira C, Msina MS, Msukwa G, Muma KI, Murgoi G, Musa KO, Mustak H, Muyen OM, Naidu G, Naumenko L, Ndoye Roth PA, Neroev V, Nikitovic M, Nkanga ED, Nkumbe H, Nyaywa M, Obono-Obiang G, Oguego NC, Olechowski A, Oscar AH, Osei-Bonsu P, Painter SL, Paintsil V, Paiva L, Papyan R, Parrozzani R, Parulekar M, Pawinska-Wasikowska K, Perić S, Philbert R, Pochop P, Polyakov VG, Pompe MT, Pons JJ, Raobela L, Renner LA, Reynders D, Ribadu D, Riheia MM, Ritter-Sovinz P, Saakyan S, Said AM, Román Pacheco SS, Scanlan TA, Schoeman J, Seregard S, Sherief ST, Cheikh SS, Silva S, Sorochynska T, Ssali G, Stathopoulos C, Kranjc BS, Stones DK, Svojgr K, Sylla F, Tamamyan G, Tandili A, Tateshi B, Theophile T, Traoré F, Tyau-Tyau H, Umar AB, Urbak SF, Ushakova TL, Valeina S, Hoefen Wijsard MV, Veleva-Krasteva NV, Viksnins M, Wackernagel W, Waddell K, Wade PD, Wali Nigeria AH, Wime AD, Dod CW, Yanga JM, Yarovaya VA, Yarovoy AA, Zein E, Sharabi S, Zhilyaeva K, Ziko OA, Bowman R. Travel burden and clinical presentation of retinoblastoma: analysis of 1024 patients from 43 African countries and 518 patients from 40 European countries. Br J Ophthalmol 2020; 105:1435-1443. [PMID: 32933936 DOI: 10.1136/bjophthalmol-2020-316613] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/28/2020] [Accepted: 08/17/2020] [Indexed: 11/04/2022]
Abstract
BACKGROUND The travel distance from home to a treatment centre, which may impact the stage at diagnosis, has not been investigated for retinoblastoma, the most common childhood eye cancer. We aimed to investigate the travel burden and its impact on clinical presentation in a large sample of patients with retinoblastoma from Africa and Europe. METHODS A cross-sectional analysis including 518 treatment-naïve patients with retinoblastoma residing in 40 European countries and 1024 treatment-naïve patients with retinoblastoma residing in 43 African countries. RESULTS Capture rate was 42.2% of expected patients from Africa and 108.8% from Europe. African patients were older (95% CI -12.4 to -5.4, p<0.001), had fewer cases of familial retinoblastoma (95% CI 2.0 to 5.3, p<0.001) and presented with more advanced disease (95% CI 6.0 to 9.8, p<0.001); 43.4% and 15.4% of Africans had extraocular retinoblastoma and distant metastasis at the time of diagnosis, respectively, compared to 2.9% and 1.0% of the Europeans. To reach a retinoblastoma centre, European patients travelled 421.8 km compared to Africans who travelled 185.7 km (p<0.001). On regression analysis, lower-national income level, African residence and older age (p<0.001), but not travel distance (p=0.19), were risk factors for advanced disease. CONCLUSIONS Fewer than half the expected number of patients with retinoblastoma presented to African referral centres in 2017, suggesting poor awareness or other barriers to access. Despite the relatively shorter distance travelled by African patients, they presented with later-stage disease. Health education about retinoblastoma is needed for carers and health workers in Africa in order to increase capture rate and promote early referral.
Collapse
Affiliation(s)
- Ido Didi Fabian
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK .,The Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Tel-Aviv University, Tel-Aviv, Israel
| | - Andrew W Stacey
- Department of Ophthalmology, University of Washington, Seattle, WA, US
| | - Allen Foster
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Tero T Kivelä
- Ocular Oncology Service, Department of Ophthalmology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Francis L Munier
- Jules-Gonin Eye Hospital, Fondation Asile de Aveugles, University of Lausanne, Lausanne, Switzerland
| | | | - Nir Gomel
- Division of Ophthalmology, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Nathalie Cassoux
- Institut curie, université de Paris medicine Paris V Descartes, Paris, France
| | - Mandeep S Sagoo
- NIHR Biomedical Research Center for Ophthalmology at Moorfields Eye Hospital and UCL Institute of Ophthalmology and London Retinoblastoma Service, Royal London Hospital, London, UK
| | - M Ashwin Reddy
- The Royal London Hospital, Barts Health NHS Trust, and Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Lamis Al Harby
- The Royal London Hospital, Barts Health NHS Trust, and Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Marcia Zondervan
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Covadonga Bascaran
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Elhassan Abdallah
- Ophthalmology Department of Rabat, Mohammed V university, Rabat, Morocco
| | | | | | - Dupe S Ademola-Popoola
- University of Ilorin and University of IlorinTeaching Hospital, Ilorin, Kwara State, Nigeria
| | - Adedayo Adio
- Department of Ophthalmology, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria
| | - Ada E Aghaji
- Department of Ophthalmology, College of Medicine, University of Nigeria, Enugu, Nigeria
| | | | | | - Amany M Ali
- Pediatric Oncology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Donjeta B Alia
- University Hospital Center 'Mother Theresa', Tirana, Albania
| | | | | | | | | | - Nicholas J Astbury
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Rose Atsiaya
- Light House For Christ Eye Center, Mombasa, Kenya
| | - Julia Balaguer
- Pediatric Oncology Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Walentyna Balwierz
- Institute of Pediatrics, Jagiellonian University Medical College, Childrens University Hospital of Krakow, Krakow, Poland
| | - Honorio Barranco
- Pediatric Oncology Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Maja Beck Popovic
- Unit of Pediatric Hematology-Oncology, University Hospital CHUV, Lausanne, Switzerland
| | - Sarra Benmiloud
- Department of Pediatric Oncology, University Hassan II Fès, Fez, Morocco
| | | | - Rokia C Berete
- Ophthalmologic Department of the Teaching Hospital of Treichville, Abidjan, Côte d'ivoire
| | | | - Eva M Biewald
- University Hospital Essen, Department of Ophthalmology, University Duisburg-Essen, Essen, Germany
| | - Sharon Blum
- The Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Tel-Aviv University, Tel-Aviv, Israel
| | - Nadia Bobrova
- The Filatov Institute of Eye diseases and Tissue Therapy, Odessa, Ukraine
| | - Marianna Boehme
- University Hospital Essen, Department of Ophthalmology, University Duisburg-Essen, Essen, Germany
| | - Norbert Bornfeld
- University Hospital Essen, Department of Ophthalmology, University Duisburg-Essen, Essen, Germany
| | - Gabrielle C Bouda
- Center Hospitalier Universitaire Yalgado Ouédraogo de Ouagadougou, Ouagadougou, Burkina Faso
| | - Hédi Bouguila
- Institut Hédi-Raïs d'Ophtalmologie de Tunis, Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - Amaria Boumedane
- Etablissement Hospitalière Spécialise Emir Abdelkader CEA Service d'Oncologie Pédiatrique, Oran, Algeria
| | | | | | - Guilherme Castela
- Centro Hospital Universitário de Coimbra, University of Coimbra, Coimbra, Portugal
| | | | | | - Violeta S Chernodrinska
- Eye Clinic, University Hospital 'Alexandrovska', Department of Ophthalmology, Medical University, Sofia, Bulgaria
| | | | - Krzysztof Cieslik
- Department of Ophthalmology, The Children's Memorial Health Institute, Warsaw, Poland
| | - Codruta Comsa
- Oncology Institute 'Prof. Dr. Al. Trestioreanu' Bucharest, Romania
| | | | - Monika Csóka
- Semmelweis University Budapest, Budapest, Hungary
| | | | - Alan Davidson
- Red Cross Children's War Memorial Hospital and the University of Cape Town, Cape Town, South Africa
| | | | | | | | | | - Asmaa El Kettani
- Center Hospitalier et Universitaire Ibn Rochd, Casablanca, Morocco
| | - Amal M Elbahi
- Tripoli Eye Hospital, Tripoli University, Tripoli, Libya
| | - Dina Elgalaly
- Children's Cancer Hospital Egypt 57357, Cairo, Egypt
| | | | - Moawia M Ali Elhassan
- Oncology Department, National Cancer Institute, University of Gezira, Wadi Madani, Sudan
| | - Mahmoud M Elzembely
- Pediatric Oncology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Vera A Essuman
- Ophthalmology Unit, Department of Surgery, School of Medicine and Dentistry, University of Ghana, Accra, Ghana
| | | | - Oluyemi Fasina
- Department of Ophthalmology, University College Hospital/University of Ibadan, Ibadan, Oyo State, Nigeria
| | | | - Moira Gandiwa
- Lions Sight First Eye Hospital, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | | | - Jennifer A Geel
- University of the Witwatersrand, Johannesburg, South Africa.,Charlotte Maxeke Johannesburg Academic Hospital, Johannesburg, South Africa
| | - Zelalem Gizachew
- Addis Ababa University, School of Medicine, Department of Ophthalmology, Addis Ababa, Ethiopia
| | - Pernille A Gregersen
- Department of Clinical Genetics, and Center for Rare Disorders, Aarhus University Hopspital, Aarhus, Denmark
| | - Koffi M Guedenon
- Département de Pédiatrie, CHU Sylvanus Olympio, Université de Lomé, Lomé, Togo
| | | | - Sadiq Hassan
- Bayero University, Aminu Kano Teaching Hospital, Kano, Nigeria
| | | | - Laila Hessissen
- Pediatric Hematology and Oncology Department of Rabat - Mohammed V University, Rabat, Morocco
| | - Diriba F Hordofa
- Department of Pediatrics and Child Health, Jimma University Medical Center, Jimma, Ethiopia
| | - Marlies Hummlen
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
| | | | - Russo Ida
- Bambino Gesù IRCCS Children's Hospital, Rome, Italy
| | - Vesna R Ilic
- Institute for Oncology and Radiology, Belgrade, Serbia
| | - Helen Jenkinson
- Birmingham Children's Hospital Eye Department, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| | | | - Rolande L Kabore
- Center Hospitalier Universitaire Yalgado Ouédraogo de Ouagadougou, Ouagadougou, Burkina Faso
| | - Abubakar Kalinaki
- Makerere University College of Health Sciences, Department of Ophthalmology, Kamplala, Uganda
| | - Noa Kapelushnik
- The Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Tel-Aviv University, Tel-Aviv, Israel
| | - Tamar Kardava
- Ophthalmology Department, Central Children's Hospital of Georgia, Tbilisi, Georgia
| | - Pavlin Kroumov Kemilev
- Eye Clinic, University Hospital 'Alexandrovska', Department of Ophthalmology, Medical University, Sofia, Bulgaria
| | - Tomas Kepak
- University Hospital Brno, Masaryk University and ICRC/St. Anna University Hospital, Brno, Czech Republic
| | - Zaza Khotenashvili
- Ophthalmology Department, Central Children's Hospital of Georgia, Tbilisi, Georgia
| | - Artur Klett
- East Tallinn Central Hospital, Tallinn, Estonia
| | | | - Dalia Krivaitiene
- Chidren's Ophthalmology Department, Chidren's Hospital of Vilnius, University Hospital Santaros Clinic, Vilnius, Lithuania
| | - Mariana Kruger
- Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Alice Kyara
- Muhimbili National Hospital, Dar es Salaam, Tanzania
| | | | - Slobodanka Latinović
- Clinical Center Of Vojvodina - University Eye Clinic, Eye Research Foundation Vidar - Latinović, Novi Sad, Serbia
| | - Karin Lecuona
- Division of Ophthalmology, University of Cape Town, Cape Town, South Africa
| | - Robert M Lukamba
- University Clinics of Lubumbashi, University of Lubumbashi, Lubumbashi, DRC
| | | | - Lesia Lysytsia
- The Okhmatdyt National Children's Hospital, Kiev, Ukraine
| | - Erika Maka
- Semmelweis University Budapest, Budapest, Hungary
| | - Mayuri Makan
- Sekuru Kaguvi Eye Unit, Parirenyatwa Group of Hospitals, Harare, Zimbabwe
| | - Chatonda Manda
- Lions Sight First Eye Hospital, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Nieves Martín Begue
- Department of Pediatric Ophthalmology, Hospital Vall d'Hebron, Barcelona, Spain
| | | | | | - Ismail Mayet
- University of the Witwatersrand, Johannesburg, South Africa
| | - Freddy B Mbumba
- Botswana Government - Scottish Livingstone Hospital, Molepolole, Botswana
| | | | - Edoardo Midena
- Department of Ophthalmology, University of Padova, Padova, Italy
| | | | - Ahmed A Mohamedani
- Pathology Department, Faculty of Medicine, University of Gezira, Wadi Madani, Sudan
| | - Annette C Moll
- Department of Ophthalmology, Amsterdam UMC, Amsterdam, Netherlands
| | - Claude Moreira
- Service d'oncologie pédiatrique de l'hôpital Aristide le Dantec, Dakar, Senegal
| | | | - Gerald Msukwa
- Lions Sight First Eye Hospital, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | | | - Gabriela Murgoi
- Oncology Institute 'Prof. Dr. Al. Trestioreanu' Bucharest, Romania
| | - Kareem O Musa
- Department of Ophthalmology, Lagos University Teaching Hospital/College of Medicine of the University of Lagos, Lagos, Nigeria
| | - Hamzah Mustak
- Division of Ophthalmology, University of Cape Town, Cape Town, South Africa
| | | | - Gita Naidu
- University of the Witwatersrand, Johannesburg, South Africa
| | - Larisa Naumenko
- N.N. Alexandrov National Cancer Center of Belarus, Minsk, Belarus
| | | | - Vladimir Neroev
- Moscow Helmholtz Research Institute of Eye Diseases, Moscow, Russia
| | | | - Elizabeth D Nkanga
- Calabar Children's Eye Center, Department of Ophthalmology University of Calabar Teaching Hospital Calabar Cross River State, Nigeria
| | - Henry Nkumbe
- Magrabi ICO Cameroon Eye Institute, Yaounde, Cameroon
| | | | | | - Ngozi C Oguego
- Department of Ophthalmology, College of Medicine, University of Nigeria, Enugu, Nigeria
| | - Andrzej Olechowski
- Department of Ophthalmology, The Children's Memorial Health Institute, Warsaw, Poland
| | - Alexander Hugo Oscar
- Eye Clinic, University Hospital 'Alexandrovska', Department of Ophthalmology, Medical University, Sofia, Bulgaria
| | | | - Sally L Painter
- Birmingham Children's Hospital Eye Department, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| | | | - Luisa Paiva
- National Ophthalmological Institute of Angola, Luanda, Angola
| | - Ruzanna Papyan
- Yerevan State Medical University, Department of Oncology and Pediatric Cancer and Blood Disorders Center of Armenia, Hematology Center after R.H. Yeolyan, Yerevan, Armenia
| | | | - Manoj Parulekar
- Birmingham Children's Hospital Eye Department, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| | - Katarzyna Pawinska-Wasikowska
- Institute of Pediatrics, Jagiellonian University Medical College, Childrens University Hospital of Krakow, Krakow, Poland
| | - Sanja Perić
- University Hospital Center Zagreb, Zagreb, Croatia
| | - Remezo Philbert
- Center Hospitaliere Universitaire de Kamenge, Bujumbura, Burundi
| | - Pavel Pochop
- Department of Ophthalmology for Children and Adults, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | - Vladimir G Polyakov
- Head and Neck Tumors Department, SRI of Pediatric Oncology and Hematology of N.N. Blokhin National Medical Research Center of Oncology of Russian Federation, Moscow, Russian Federation.,Medical Academy of Postgraduate Education, Moscow, Russia
| | - Manca T Pompe
- Univ. Medical Center Ljubljana, Univ.Eye Hospital Ljubljana, Ljubljana, Slovenia
| | | | - Léa Raobela
- Center Hospitalier Universitaire Joseph Ravoahangy Andrianavalona, Antananarivo, Madagascar
| | - Lorna A Renner
- University of Ghana School of Medicine and Dentistry, Korle Bu Teaching Hospital, Accra, Ghana
| | | | | | | | - Petra Ritter-Sovinz
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Hematology/Oncology, Medical University of Graz, Graz, Austria
| | - Svetlana Saakyan
- Moscow Helmholtz Research Institute of Eye Diseases, Moscow, Russia
| | - Azza Ma Said
- Ophthalmology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | | | | | | | | | - Sadik T Sherief
- Addis Ababa University, School of Medicine, Department of Ophthalmology, Addis Ababa, Ethiopia
| | - Sidi Sidi Cheikh
- Ophthalmology department, Nouakchott Medical University, Nouakchott, Mauritania
| | - Sónia Silva
- Centro Hospital Universitário de Coimbra, University of Coimbra, Coimbra, Portugal
| | | | - Grace Ssali
- Mulago National Referral and Teaching Hospital, Kamplala, Uganda
| | - Christina Stathopoulos
- Jules-Gonin Eye Hospital, Fondation Asile de Aveugles, University of Lausanne, Lausanne, Switzerland
| | - Branka Stirn Kranjc
- Univ. Medical Center Ljubljana, Univ.Eye Hospital Ljubljana, Ljubljana, Slovenia
| | - David K Stones
- Department of Paediatrics and Child Health, University of the Free Sate, Bloemfontein, South Africa
| | - Karel Svojgr
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic
| | | | - Gevorg Tamamyan
- Yerevan State Medical University, Department of Oncology and Pediatric Cancer and Blood Disorders Center of Armenia, Hematology Center after R.H. Yeolyan, Yerevan, Armenia
| | - Alketa Tandili
- University Hospital Center 'Mother Theresa', Tirana, Albania
| | | | | | - Fousseyni Traoré
- Pediatric Oncology Service, Gabriel Toure Hospital, Bamako, Mali
| | | | - Ali B Umar
- Bayero University, Aminu Kano Teaching Hospital, Kano, Nigeria
| | - Steen F Urbak
- Department of ophthalmology, Aarhus University Hospital, Aarhus, Denmark
| | - Tatiana L Ushakova
- Head and Neck Tumors Department, SRI of Pediatric Oncology and Hematology of N.N. Blokhin National Medical Research Center of Oncology of Russian Federation, Moscow, Russian Federation.,Medical Academy of Postgraduate Education, Moscow, Russia
| | | | | | - Nevyana V Veleva-Krasteva
- Eye Clinic, University Hospital 'Alexandrovska', Department of Ophthalmology, Medical University, Sofia, Bulgaria
| | | | | | | | | | | | - Amelia Dc Wime
- National Ophthalmological Institute of Angola, Luanda, Angola
| | | | - Jenny M Yanga
- Service d'Ophtalmologie, Cliniques Universitaires de Kinshasa, Université de Kinshasa, Kinshasa, DRC
| | - Vera A Yarovaya
- S.Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russia
| | - Andrey A Yarovoy
- S.Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russia
| | - Ekhtelbenina Zein
- Assistante Hospitalo - Universitaire, Faculte de Medecine de Nouakchott Medecin Oncopediatre, Center National d'Oncologie, Nouakchott, Mauritania
| | - Shirley Sharabi
- Radiology Department, Sheba Medical Center, Ramat-Gan, Israel
| | | | - Othman Ao Ziko
- Ophthalmology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Richard Bowman
- Ophthalmology Department, Great Ormond Street Children's Hospital, London, UK
| |
Collapse
|
12
|
Kermani F, Orooji A, Sheikhtaheri A. Teleoncology for children with cancer: A scoping review on applications and outcomes. Int J Med Inform 2020; 139:104118. [PMID: 32353751 DOI: 10.1016/j.ijmedinf.2020.104118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 02/26/2020] [Accepted: 03/06/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND AND OBJECTIVES Teleoncology can be used to reduce the limitations due to the lack of access to specialists, inadequate resources and training, and reducing unnecessary travels and arising of the costs. The purpose of this study was to review the literatures to identify and classify the areas of application and outcomes of using teleoncology in diagnosis, management, and treatment of children with cancer. METHODS This scoping review of the published literatures was conducted by searching the Web of Science, PubMed/Medline, Scopus, and Cochrane Library databases in October 2019. Studies investigated telemedicine in diagnosis, management, and treatment of cancer in children were also included. We identified and classified different applications and the reported outcomes of this technology. RESULTS In this study, 1834 articles were retrieved, and after removing the unrelated and duplicated articles, 20 articles were reviewed ultimately. We found that, teleoncology services were provided to the patients with cancer, their parents, and nurses in various clinical fields such as telepathology, telemental care (telepsychology), teleneurology, teledermatology, telehematology, and teleophthalmology. The findings also showed that, the outcomes of using telemedicine in children with cancer can be classified into six general categories (five primary and 14 secondary outcomes). Primary outcomes including diagnosis accuracy, reduced costs as well as mortality and secondary outcomes consist of improved relationship and training, better care management, satisfaction, and workload. CONCLUSION The use of telemedicine for children with cancer is growing, and there is a tendency for using this technology for families and clinical staff. Providing teleoncology services to children with cancer may improve diagnosis accuracy and reduce the cost and mortality rate. Also, better care management, appropriate relationships and training, increased satisfaction, and decreased workload may be achieved.
Collapse
Affiliation(s)
- Farzaneh Kermani
- Department of Health Information Management, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Azam Orooji
- School of Medicine, North Khorasan University of Medical Science (NKUMS), North Khorasan, Iran
| | - Abbas Sheikhtaheri
- Health Management and Economics Research Center, Department of Health Information Management, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
13
|
Fabian ID, Abdallah E, Abdullahi SU, Abdulqader RA, Adamou Boubacar S, Ademola-Popoola DS, Adio A, Afshar AR, Aggarwal P, Aghaji AE, Ahmad A, Akib MNR, Al Harby L, Al Ani MH, Alakbarova A, Portabella SA, Al-Badri SAF, Alcasabas APA, Al-Dahmash SA, Alejos A, Alemany-Rubio E, Alfa Bio AI, Alfonso Carreras Y, Al-Haddad C, Al-Hussaini HHY, Ali AM, Alia DB, Al-Jadiry MF, Al-Jumaily U, Alkatan HM, All-Eriksson C, Al-Mafrachi AARM, Almeida AA, Alsawidi KM, Al-Shaheen AASM, Al-Shammary EH, Amiruddin PO, Antonino R, Astbury NJ, Atalay HT, Atchaneeyasakul LO, Atsiaya R, Attaseth T, Aung TH, Ayala S, Baizakova B, Balaguer J, Balayeva R, Balwierz W, Barranco H, Bascaran C, Beck Popovic M, Benavides R, Benmiloud S, Bennani Guebessi N, Berete RC, Berry JL, Bhaduri A, Bhat S, Biddulph SJ, Biewald EM, Bobrova N, Boehme M, Boldt HC, Bonanomi MTBC, Bornfeld N, Bouda GC, Bouguila H, Boumedane A, Brennan RC, Brichard BG, Buaboonnam J, Calderón-Sotelo P, Calle Jara DA, Camuglia JE, Cano MR, Capra M, Cassoux N, Castela G, Castillo L, Català-Mora J, Chantada GL, Chaudhry S, Chaugule SS, Chauhan A, Chawla B, Chernodrinska VS, Chiwanga FS, Chuluunbat T, Cieslik K, Cockcroft RL, Comsa C, Correa ZM, Correa Llano MG, Corson TW, Cowan-Lyn KE, Csóka M, Cui X, Da Gama IV, Dangboon W, Das A, Das S, Davanzo JM, Davidson A, De Potter P, Delgado KQ, Demirci H, Desjardins L, Diaz Coronado RY, Dimaras H, Dodgshun AJ, Donaldson C, Donato Macedo CR, Dragomir MD, Du Y, Du Bruyn M, Edison KS, Eka Sutyawan IW, El Kettani A, Elbahi AM, Elder JE, Elgalaly D, Elhaddad AM, Elhassan MMA, Elzembely MM, Essuman VA, Evina TGA, Fadoo Z, Fandiño AC, Faranoush M, Fasina O, Fernández DDPG, Fernández-Teijeiro A, Foster A, Frenkel S, Fu LD, Fuentes-Alabi SL, Gallie BL, Gandiwa M, Garcia JL, García Aldana D, Gassant PY, Geel JA, Ghassemi F, Girón AV, Gizachew Z, Goenz MA, Gold AS, Goldberg-Lavid M, Gole GA, Gomel N, Gonzalez E, Gonzalez Perez G, González-Rodríguez L, Garcia Pacheco HN, Graells J, Green L, Gregersen PA, Grigorovski NDAK, Guedenon KM, Gunasekera DS, Gündüz AK, Gupta H, Gupta S, Hadjistilianou T, Hamel P, Hamid SA, Hamzah N, Hansen ED, Harbour JW, Hartnett ME, Hasanreisoglu M, Hassan S, Hassan S, Hederova S, Hernandez J, Hernandez LMC, Hessissen L, Hordofa DF, Huang LC, Hubbard GB, Hummlen M, Husakova K, Hussein Al-Janabi AN, Ida R, Ilic VR, Jairaj V, Jeeva I, Jenkinson H, Ji X, Jo DH, Johnson KP, Johnson WJ, Jones MM, Kabesha TBA, Kabore RL, Kaliki S, Kalinaki A, Kantar M, Kao LY, Kardava T, Kebudi R, Kepak T, Keren-Froim N, Khan ZJ, Khaqan HA, Khauv P, Kheir WJ, Khetan V, Khodabande A, Khotenashvili Z, Kim JW, Kim JH, Kiratli H, Kivelä TT, Klett A, Komba Palet JEK, Krivaitiene D, Kruger M, Kulvichit K, Kuntorini MW, Kyara A, Lachmann ES, Lam CPS, Lam GC, Larson SA, Latinovic S, Laurenti KD, Le BHA, Lecuona K, Leverant AA, Li C, Limbu B, Long QB, López JP, Lukamba RM, Lumbroso L, Luna-Fineman S, Lutfi D, Lysytsia L, Magrath GN, Mahajan A, Majeed AR, Maka E, Makan M, Makimbetov EK, Manda C, Martín Begue N, Mason L, Mason JO, Matende IO, Materin M, Mattosinho CCDS, Matua M, Mayet I, Mbumba FB, McKenzie JD, Medina-Sanson A, Mehrvar A, Mengesha AA, Menon V, Mercado GJVD, Mets MB, Midena E, Mishra DKC, Mndeme FG, Mohamedani AA, Mohammad MT, Moll AC, Montero MM, Morales RA, Moreira C, Mruthyunjaya P, Msina MS, Msukwa G, Mudaliar SS, Muma KI, Munier FL, Murgoi G, Murray TG, Musa KO, Mushtaq A, Mustak H, Muyen OM, Naidu G, Nair AG, Naumenko L, Ndoye Roth PA, Nency YM, Neroev V, Ngo H, Nieves RM, Nikitovic M, Nkanga ED, Nkumbe H, Nuruddin M, Nyaywa M, Obono-Obiang G, Oguego NC, Olechowski A, Oliver SCN, Osei-Bonsu P, Ossandon D, Paez-Escamilla MA, Pagarra H, Painter SL, Paintsil V, Paiva L, Pal BP, Palanivelu MS, Papyan R, Parrozzani R, Parulekar M, Pascual Morales CR, Paton KE, Pawinska-Wasikowska K, Pe'er J, Peña A, Peric S, Pham CTM, Philbert R, Plager DA, Pochop P, Polania RA, Polyakov VG, Pompe MT, Pons JJ, Prat D, Prom V, Purwanto I, Qadir AO, Qayyum S, Qian J, Rahman A, Rahman S, Rahmat J, Rajkarnikar P, Ramanjulu R, Ramasubramanian A, Ramirez-Ortiz MA, Raobela L, Rashid R, Reddy MA, Reich E, Renner LA, Reynders D, Ribadu D, Riheia MM, Ritter-Sovinz P, Rojanaporn D, Romero L, Roy SR, Saab RH, Saakyan S, Sabhan AH, Sagoo MS, Said AMA, Saiju R, Salas B, San Román Pacheco S, Sánchez GL, Sayalith P, Scanlan TA, Schefler AC, Schoeman J, Sedaghat A, Seregard S, Seth R, Shah AS, Shakoor SA, Sharma MK, Sherief ST, Shetye NG, Shields CL, Siddiqui SN, Sidi Cheikh S, Silva S, Singh AD, Singh N, Singh U, Singha P, Sitorus RS, Skalet AH, Soebagjo HD, Sorochynska T, Ssali G, Stacey AW, Staffieri SE, Stahl ED, Stathopoulos C, Stirn Kranjc B, Stones DK, Strahlendorf C, Suarez MEC, Sultana S, Sun X, Sundy M, Superstein R, Supriyadi E, Surukrattanaskul S, Suzuki S, Svojgr K, Sylla F, Tamamyan G, Tan D, Tandili A, Tarrillo Leiva FF, Tashvighi M, Tateshi B, Tehuteru ES, Teixeira LF, Teh KH, Theophile T, Toledano H, Trang DL, Traoré F, Trichaiyaporn S, Tuncer S, Tyau-Tyau H, Umar AB, Unal E, Uner OE, Urbak SF, Ushakova TL, Usmanov RH, Valeina S, van Hoefen Wijsard M, Varadisai A, Vasquez L, Vaughan LO, Veleva-Krasteva NV, Verma N, Victor AA, Viksnins M, Villacís Chafla EG, Vishnevskia-Dai V, Vora T, Wachtel AE, Wackernagel W, Waddell K, Wade PD, Wali AH, Wang YZ, Weiss A, Wilson MW, Wime ADC, Wiwatwongwana A, Wiwatwongwana D, Wolley Dod C, Wongwai P, Xiang D, Xiao Y, Yam JC, Yang H, Yanga JM, Yaqub MA, Yarovaya VA, Yarovoy AA, Ye H, Yousef YA, Yuliawati P, Zapata López AM, Zein E, Zhang C, Zhang Y, Zhao J, Zheng X, Zhilyaeva K, Zia N, Ziko OAO, Zondervan M, Bowman R. Global Retinoblastoma Presentation and Analysis by National Income Level. JAMA Oncol 2020; 6:685-695. [PMID: 32105305 PMCID: PMC7047856 DOI: 10.1001/jamaoncol.2019.6716] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Importance Early diagnosis of retinoblastoma, the most common intraocular cancer, can save both a child's life and vision. However, anecdotal evidence suggests that many children across the world are diagnosed late. To our knowledge, the clinical presentation of retinoblastoma has never been assessed on a global scale. Objectives To report the retinoblastoma stage at diagnosis in patients across the world during a single year, to investigate associations between clinical variables and national income level, and to investigate risk factors for advanced disease at diagnosis. Design, Setting, and Participants A total of 278 retinoblastoma treatment centers were recruited from June 2017 through December 2018 to participate in a cross-sectional analysis of treatment-naive patients with retinoblastoma who were diagnosed in 2017. Main Outcomes and Measures Age at presentation, proportion of familial history of retinoblastoma, and tumor stage and metastasis. Results The cohort included 4351 new patients from 153 countries; the median age at diagnosis was 30.5 (interquartile range, 18.3-45.9) months, and 1976 patients (45.4%) were female. Most patients (n = 3685 [84.7%]) were from low- and middle-income countries (LMICs). Globally, the most common indication for referral was leukocoria (n = 2638 [62.8%]), followed by strabismus (n = 429 [10.2%]) and proptosis (n = 309 [7.4%]). Patients from high-income countries (HICs) were diagnosed at a median age of 14.1 months, with 656 of 666 (98.5%) patients having intraocular retinoblastoma and 2 (0.3%) having metastasis. Patients from low-income countries were diagnosed at a median age of 30.5 months, with 256 of 521 (49.1%) having extraocular retinoblastoma and 94 of 498 (18.9%) having metastasis. Lower national income level was associated with older presentation age, higher proportion of locally advanced disease and distant metastasis, and smaller proportion of familial history of retinoblastoma. Advanced disease at diagnosis was more common in LMICs even after adjusting for age (odds ratio for low-income countries vs upper-middle-income countries and HICs, 17.92 [95% CI, 12.94-24.80], and for lower-middle-income countries vs upper-middle-income countries and HICs, 5.74 [95% CI, 4.30-7.68]). Conclusions and Relevance This study is estimated to have included more than half of all new retinoblastoma cases worldwide in 2017. Children from LMICs, where the main global retinoblastoma burden lies, presented at an older age with more advanced disease and demonstrated a smaller proportion of familial history of retinoblastoma, likely because many do not reach a childbearing age. Given that retinoblastoma is curable, these data are concerning and mandate intervention at national and international levels. Further studies are needed to investigate factors, other than age at presentation, that may be associated with advanced disease in LMICs.
Collapse
Affiliation(s)
| | - Ido Didi Fabian
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
- The Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Tel Aviv University, Tel Aviv, Israel
| | - Elhassan Abdallah
- Ophthalmology Department of Rabat, Mohammed V University, Rabat, Morocco
| | | | | | | | | | - Adedayo Adio
- Department of Ophthalmology, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria
| | | | | | - Ada E Aghaji
- Department of Ophthalmology, College of Medicine, University of Nigeria, Enugu, Nigeria
| | - Alia Ahmad
- The Children's Hospital and the Institute of Child Health, Lahore, Pakistan
| | | | - Lamis Al Harby
- The Royal London Hospital, Barts Health NHS Trust, and Moorfields Eye Hospital NHS Foundation Trust, London, United Kingdom
| | | | - Aygun Alakbarova
- Zarifa Aliyeva National Center of Ophthalmology, Baku, Azerbaijan
| | | | - Safaa A F Al-Badri
- Pediatric Oncology Unit, Children Welfare Teaching Hospital, College of Medicine, University of Baghdad, Baghdad, Iraq
| | | | | | - Amanda Alejos
- Unidad Nacional de Oncología Pediátrica, Guatemala City, Guatemala
| | | | | | | | - Christiane Al-Haddad
- Department of Ophthalmology, American University of Beirut Medical Center, Beirut, Lebanon
| | | | - Amany M Ali
- Pediatric Oncology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Donjeta B Alia
- University Hospital Center Mother Theresa, Tirana, Albania
| | - Mazin F Al-Jadiry
- Pediatric Oncology Unit, Children Welfare Teaching Hospital, College of Medicine, University of Baghdad, Baghdad, Iraq
| | | | - Hind M Alkatan
- College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | | | | | | | | | | | | | | | | | - Nicholas J Astbury
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Hatice T Atalay
- Department of Ophthalmology, School of Medicine, Gazi University, Ankara, Turkey
| | | | - Rose Atsiaya
- Lighthouse For Christ Eye Centre, Mombasa, Kenya
| | - Taweevat Attaseth
- Department of Ophthalmology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Than H Aung
- Yangon Eye Hospital, University of Medicine 1, Yangon, Myanmar
| | | | - Baglan Baizakova
- Scientific Center of Pediatrics and Pediatric Surgery, Almaty, Kazakhstan
| | - Julia Balaguer
- Pediatric Oncology Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | | | - Walentyna Balwierz
- Institute of Pediatrics, Jagiellonian University Medical College, Children's University Hospital of Krakow, Krakow, Poland
| | - Honorio Barranco
- Pediatric Oncology Unit, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Covadonga Bascaran
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Maja Beck Popovic
- Pediatric Hematology-Oncology Unit, Lausanne University Hospital, Lausanne, Switzerland
| | - Raquel Benavides
- Hospital Nacional de Niños Dr Carlos Sáenz Herrera, San Jose, Costa Rica
| | - Sarra Benmiloud
- Department of Pediatric Oncology, University Hassan II Fès, Fez, Morocco
| | | | - Rokia C Berete
- Ophthalmologic Department of the Teaching Hospital of Treichville, Abidjan, Côte d'Ivoire
| | - Jesse L Berry
- Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles
| | | | - Sunil Bhat
- Department of Pediatric Hematology and Oncology, Narayana Health City, Bangalore, India
| | | | - Eva M Biewald
- Department of Ophthalmology, Essen University Hospital, University Duisburg-Essen, Essen, Germany
| | - Nadia Bobrova
- The Filatov Institute of Eye Diseases and Tissue Therapy, Odessa, Ukraine
| | - Marianna Boehme
- Department of Ophthalmology, Essen University Hospital, University Duisburg-Essen, Essen, Germany
| | - H C Boldt
- Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City
| | | | - Norbert Bornfeld
- Department of Ophthalmology, Essen University Hospital, University Duisburg-Essen, Essen, Germany
| | - Gabrielle C Bouda
- Centre Hospitalier Universitaire Yalgado Ouédraogo de Ouagadougou, Ouagadougou, Burkina Faso
| | - Hédi Bouguila
- Institut Hédi Raïs d'Ophtalmologie, Faculté de Médecine, Université Tunis El Manar, Tunis, Tunisia
| | - Amaria Boumedane
- Etablissement Hospitalière Spécialise Emir Abdelkader CEA Service d'Oncologie Pédiatrique, Oran, Algeria
| | - Rachel C Brennan
- Solid Tumor Division, Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | | | | | | | | | - Jayne E Camuglia
- Department of Ophthalmology, Queensland Children's Hospital, Brisbane, Queensland, Australia
| | - Miriam R Cano
- Salud Ocular, Ministerio de Salud Publica, Asuncion, Paraguay
| | | | - Nathalie Cassoux
- Institut Curie, Université de Paris Medicine Paris V Descartes, Paris, France
| | - Guilherme Castela
- Centro Hospital Universitário de Coimbra, University of Coimbra, Coimbra, Portugal
| | | | | | - Guillermo L Chantada
- Hospital Sant Joan de Déu, Barcelona, Spain
- Hospital Garrahan, Buenos Aires, Argentina
- NationalScientific and Technical Research Council, CONICET, Buenos Aires, Argentina
| | - Shabana Chaudhry
- Paediatric Ophthalmology Department, Mayo Hospital and College of Allied Visual Sciences, King Edward Medical University, Lahore, Pakistan
| | - Sonal S Chaugule
- Department of Ophthalmic Plastic Surgery, Orbit and Ocular Oncology, PBMA's H. V. Desai Eye Hospital, Pune, Maharashtra, India
| | | | - Bhavna Chawla
- Ocular Oncology Service, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India
| | - Violeta S Chernodrinska
- Eye Clinic, Department of Ophthalmology, University Hospital Alexandrovska, Medical University, Sofia, Sofia, Bulgaria
| | | | | | - Krzysztof Cieslik
- Department of Ophthalmology, The Children's Memorial Health Institute, Warsaw, Poland
| | | | - Codruta Comsa
- Institute of Oncology, Prof. Dr Al. Trestioreanu, Bucharest, Romania
| | - Zelia M Correa
- Wilmer Eye Institute, Johns Hopkins Medicine, Baltimore, Maryland, and University of Cincinnati College of Medicine, Cincinnati, Ohio
| | | | | | | | | | - Xuehao Cui
- Department of Ophthalmology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | | | - Wantanee Dangboon
- Department of Ophthalmology, Songklanagarind Hospital, Prince of Songkla University, Songkla, Thailand
| | - Anirban Das
- Department of Pediatric Hematology-Oncology, Tata Medical Center, Kolkata, India
| | - Sima Das
- Ocular Oncology Services, Dr Shroff's Charity Eye Hospital, New Delhi, India
| | | | - Alan Davidson
- Red Cross War Memorial Children's Hospital and the University of Cape Town, Cape Town, South Africa
| | | | | | - Hakan Demirci
- Department of Ophthalmology, Kellogg Eye Center, University of Michigan, Ann Arbor
| | | | | | - Helen Dimaras
- The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Andrew J Dodgshun
- Department of Paediatrics, University of Otago, Christchurch, Children's Haematology and Oncology Center, Christchurch Hospital, Christchurch, New Zealand
| | - Craig Donaldson
- The Children's Hospital at Westmead, Sydney, New South Wales, Australia
| | | | - Monica D Dragomir
- Institute of Oncology, Prof. Dr Al. Trestioreanu, Bucharest, Romania
| | - Yi Du
- Department of Ophthalmology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | | | - Kemala S Edison
- Ophthalmology Department, Dr M. Djamil General Hospital, Faculty of Medicine, Andalas University, West Sumatra, Indonesia
| | - I Wayan Eka Sutyawan
- Department of Ophthalmology, Faculty of Medicine, Udayana University, Sanglah Eye Hospital, Bali, Indonesia
| | - Asmaa El Kettani
- Center Hospitalier et Universitaire Ibn Rochd, Casablanca, Morocco
| | - Amal M Elbahi
- Tripoli Eye Hospital, University of Tripoli, Tripoli, Libya
| | - James E Elder
- Department of Ophthalmology, Royal Children's Hospital, Parkville, Victoria, Australia
- Department of Paediatrics, Melbourne Medical School, University of Melbourne, Parkville, Victoria, Australia
| | - Dina Elgalaly
- Children's Cancer Hospital Egypt 57357, Cairo, Egypt
| | | | - Moawia M Ali Elhassan
- Department of Oncology, National Cancer Institute, University of Gezira, Wadi Madani, Sudan
| | - Mahmoud M Elzembely
- Pediatric Oncology Department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Vera A Essuman
- Ophthalmology Unit, Department of Surgery, School of Medicine and Dentistry, University of Ghana, Accra, Ghana
| | | | | | | | - Mohammad Faranoush
- Pediatric Growth and Development Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Rasool Akram Hospital, Tehran, Iran
| | - Oluyemi Fasina
- Department of Ophthalmology, University College Hospital, University of Ibadan, Ibadan, Nigeria
| | | | | | - Allen Foster
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Shahar Frenkel
- Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Soad L Fuentes-Alabi
- Pediatric Oncology Department, Benjamin Bloom National Children's Hospital, San Salvador, El Salvador
| | | | - Moira Gandiwa
- Lions Sight First Eye Hospital, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | | | | | | | - Jennifer A Geel
- Charlotte Maxeke Johannesburg Academic Hospital, Johannesburg, South Africa
| | - Fariba Ghassemi
- Retina and Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ana V Girón
- Unidad Nacional de Oncología Pediátrica, Guatemala City, Guatemala
| | - Zelalem Gizachew
- Department of Ophthalmology, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Marco A Goenz
- Pediatric Oncology Department, Benjamin Bloom National Children's Hospital, San Salvador, El Salvador
| | - Aaron S Gold
- Murray Ocular Oncology and Retina, Miami, Florida
| | | | - Glen A Gole
- Department of Ophthalmology, Queensland Children's Hospital, Brisbane, Queensland, Australia
| | - Nir Gomel
- Department of Ophthalmology, Sourasky Medical Center Tel Aviv, School of Medicine, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Efren Gonzalez
- Department of Ophthalmology, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts
| | | | | | - Henry N Garcia Pacheco
- Pediatric Oncology Unit, Instituto Regional de Enfermedades Neoplásicas del Sur, Arequipa, Perú
| | - Jaime Graells
- Unidad de Oncologia Ocular Hospital Oncologico Luis Razzetti, Caracas, Venezuela
| | - Liz Green
- IAM NOOR Eye Care Programme, Afghanistan
| | - Pernille A Gregersen
- Department of Clinical Genetics and Center for Rare Disorders, Aarhus University Hospital, Aarhus, Denmark
| | | | - Koffi M Guedenon
- Département de Pédiatrie, CHU Sylvanus Olympio, Université de Lomé, Lomé, Togo
| | | | - Ahmet K Gündüz
- Department of Ophthalmology, Ankara University School of Medicine, Ankara, Turkey
| | - Himika Gupta
- Bai Jerbai Wadia Hospital for Children, Mumbai, India
| | - Sanjiv Gupta
- King George's Medical University, Lucknow, India
| | | | - Patrick Hamel
- Centre Hospitalier Universitaire Sainte-Justine, University of Montreal, Montréal, Quebec, Canada
| | | | | | - Eric D Hansen
- John A. Moran Eye Center, University of Utah, Salt Lake City
| | - J William Harbour
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida
| | | | - Murat Hasanreisoglu
- Department of Ophthalmology, School of Medicine, Gazi University, Ankara, Turkey
| | - Sadiq Hassan
- Aminu Kano Teaching Hospital, Bayero University, Kano, Nigeria
| | - Shadab Hassan
- Department of Pediatric Ophthalmology and Strabismus, Al Shifa Trust Eye Hospital, Rawalpindi, Pakistan
| | | | - Jose Hernandez
- Hospital Nacional Guillermo Almenara Irigoyen, Lima, Perú
| | | | - Laila Hessissen
- Pediatric Hematology and Oncology Center, Mohammed V University, Rabat, Morocco
| | - Diriba F Hordofa
- Department of Pediatrics and Child Health, Jimma University Medical Center, Jimma, Ethiopia
| | - Laura C Huang
- Byers Eye Institute, Stanford University, Stanford, California
| | | | - Marlies Hummlen
- Department of Ophthalmology, Oslo University Hospital, Oslo, Norway
| | | | | | - Russo Ida
- Bambino Gesù IRCCS Children's Hospital, Rome, Italy
| | - Vesna R Ilic
- Institute for Oncology and Radiology of Serbia, Belgrade, Serbia
| | | | | | - Helen Jenkinson
- Eye Department, Birmingham Children's Hospital, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, United Kingdom
| | - Xunda Ji
- Department of Ophthalmology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dong Hyun Jo
- Fight Against Angiogenesis-Related Blindness Laboratory, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | | | - William J Johnson
- Storm Eye Institute, Medical University of South Carolina, Charleston
| | - Michael M Jones
- The Children's Hospital at Westmead, Sydney, New South Wales, Australia
| | | | - Rolande L Kabore
- Centre Hospitalier Universitaire Yalgado Ouédraogo de Ouagadougou, Ouagadougou, Burkina Faso
| | - Swathi Kaliki
- Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, India
| | - Abubakar Kalinaki
- Department of Ophthalmology, Makerere University College of Health Sciences Kamplala, Uganda
| | - Mehmet Kantar
- Division of Pediatric Oncology, School of Medicine, Ege University, Izmir, Turkey
| | | | - Tamar Kardava
- Ophthalmology Department, Central Children's Hospital of Georgia, Tbilisi, Georgia
| | - Rejin Kebudi
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Cerrahpaşa Faculty of Medicine and Oncology Institute, Istanbul University, Istanbul, Turkey
| | - Tomas Kepak
- St. Anne's University Hospital Brno, Masaryk University, and International Clinical Research Center/St Anna University Hospital, Brno, Czech Republic
| | | | | | - Hussain A Khaqan
- Department of Ophthalmology, Postgraduate Medical Institute, Ameer-Ud-Din Medical College, Lahore General Hospital, Lahore, Pakistan
| | - Phara Khauv
- Angkor Hospital for Children, Krong Siem Reap, Cambodia
| | - Wajiha J Kheir
- Duke Eye Center, Duke University Hospital, Durham, North Carolina
| | | | - Alireza Khodabande
- Retina and Vitreous Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Zaza Khotenashvili
- Ophthalmology Department, Central Children's Hospital of Georgia, Tbilisi, Georgia
| | - Jonathan W Kim
- Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles
| | - Jeong Hun Kim
- Department of Ophthalmology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Hayyam Kiratli
- Ocular Oncology Service, Department of Ophthalmology, Hacettepe University School of Medicine, Ankara, Turkey
| | - Tero T Kivelä
- Ocular Oncology Service, Department of Ophthalmology, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Artur Klett
- East Tallinn Central Hospital, Tallinn, Estonia
| | | | - Dalia Krivaitiene
- Children's Ophthalmology Department, Children's Hospital of Vilnius, University Hospital Santaros Clinic, Vilnius, Lithuania
| | - Mariana Kruger
- Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Kittisak Kulvichit
- Vitreo-Retina Research Unit, Department of Ophthalmology, Chulalongkorn University, Bangkok, Thailand
| | | | - Alice Kyara
- Muhimbili National Hospital, Dar es Salaam, Tanzania
| | - Eva S Lachmann
- University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Carol P S Lam
- Hong Kong Eye Hospital, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Geoffrey C Lam
- Perth Children's Hospital, University of Western Australia, Perth, Western Australia, Australia
| | - Scott A Larson
- Department of Ophthalmology and Visual Sciences, University of Iowa, Iowa City
| | - Slobodanka Latinovic
- Clinical Center of Vojvodina, University Eye Clinic, Eye Research Foundation Vidar-Latinović, Novi Sad, Serbia
| | - Kelly D Laurenti
- Division of Ophthalmology, Feinberg School of Medicine, Northwestern University, and Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Bao Han A Le
- John A. Burns School of Medicine, University of Hawaii, Honolulu, and University of Southern California Roski Eye Institute, Los Angeles
| | - Karin Lecuona
- Division of Ophthalmology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | - Cairui Li
- Affiliated Hospital of Dali University, Dali City, China
| | - Ben Limbu
- Tilganga Institute of Ophthalmology, Kathmandu, Nepal
| | | | - Juan P López
- Ophthalmology Department, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Robert M Lukamba
- University Clinics of Lubumbashi, University of Lubumbashi, Lubumbashi, Democratic Rrepublic of Congo
| | | | - Sandra Luna-Fineman
- Pediatric Hematology/Oncology/Stem Cell Transplantation, Center for Global Health, Children's Hospital Colorado, University of Colorado, Aurora
| | - Delfitri Lutfi
- Department of Ophthalmology, Dr Soetomo General Hospital, Airlangga University, Surabaya, Indonesia
| | | | - George N Magrath
- Storm Eye Institute, Medical University of South Carolina, Charleston
| | - Amita Mahajan
- Pediatric Hematology-Oncology Unit, Apollo Center for Advanced Pediatrics, Indraprastha Apollo Hospital, New Delhi, India
| | | | - Erika Maka
- Semmelweis University, Budapest, Hungary
| | - Mayuri Makan
- Sekuru Kaguvi Eye Unit, Parirenyatwa Group of Hospitals, Harare, Zimbabwe
| | | | - Chatonda Manda
- Lions Sight First Eye Hospital, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | - Nieves Martín Begue
- Department of Pediatric Ophthalmology, Hospital Vall d'Hebron, Barcelona, Spain
| | | | | | | | - Miguel Materin
- Duke Eye Center, Duke University Hospital, Durham, North Carolina
| | | | - Marchelo Matua
- Ruharo Eye Centre, Ruharo Mission Hospital, Mbarara, Uganda
| | - Ismail Mayet
- University of the Witwatersrand, Johannesburg, South Africa
| | | | - John D McKenzie
- Department of Ophthalmology, Royal Children's Hospital, Parkville, Victoria, Australia
- Department of Ocular Oncology, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
| | - Aurora Medina-Sanson
- Department of Oncology, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - Azim Mehrvar
- MAHAK Hematology Oncology Research Center, Mahak Hospital, Tehran, Iran
| | | | | | | | - Marilyn B Mets
- Division of Ophthalmology, Feinberg School of Medicine, Northwestern University, and Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Edoardo Midena
- Department of Ophthalmology, University of Padova, Padova, Italy
| | | | | | - Ahmed A Mohamedani
- Department of Pathology, Faculty of Medicine, University of Gezira, Wad Medani, Sudan
| | | | - Annette C Moll
- Department of Ophthalmology, Amsterdam UMC, Amsterdam, the Netherlands
| | | | - Rosa A Morales
- Hospital Infantil Manuel de Jesús Rivera, Managua, Nicaragua
| | - Claude Moreira
- Service d'Oncologie Pédiatrique de l'Hôpital Aristide le Dantec, Dakar, Senegal
| | | | | | - Gerald Msukwa
- Lions Sight First Eye Hospital, Queen Elizabeth Central Hospital, Blantyre, Malawi
| | | | | | - Francis L Munier
- Jules-Gonin Eye Hospital, Fondation Asile de Aveugles, University of Lausanne, Lausanne, Switzerland
| | - Gabriela Murgoi
- Institute of Oncology, Prof. Dr Al. Trestioreanu, Bucharest, Romania
| | | | - Kareem O Musa
- Department of Ophthalmology, Lagos University Teaching Hospital, College of Medicine of the University of Lagos, Lagos, Nigeria
| | - Asma Mushtaq
- The Children's Hospital and the Institute of Child Health, Lahore, Pakistan
| | - Hamzah Mustak
- Division of Ophthalmology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | - Gita Naidu
- University of the Witwatersrand, Johannesburg, South Africa
| | - Akshay Gopinathan Nair
- Aditya Jyot Eye Hospital, Mumbai, India
- Lokmanya Tilak Municipal General Hospital and Medical College, Mumbai, India
| | - Larisa Naumenko
- N.N. Alexandrov National Cancer Centre of Belarus, Minsk, Belarus
| | | | - Yetty M Nency
- Child Health Department, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Vladimir Neroev
- Moscow Helmholtz Research Institute of Eye Diseases, Moscow, Russia
| | - Hang Ngo
- Ho Chi Minh Eye Hospital, Ho Chi Minh, Vietnam
| | - Rosa M Nieves
- Hospital Infantil Dr Robert Reid Cabral, Santo Domingo, Dominican Republic
| | - Marina Nikitovic
- Institute for Oncology and Radiology of Serbia, Belgrade, Serbia
| | - Elizabeth D Nkanga
- Department of Ophthalmology, Calabar Children's Eye Center, University of Calabar Teaching Hospital, Calabar Nigeria
| | - Henry Nkumbe
- Magrabi ICO Cameroon Eye Institute, Yaounde, Cameroon
| | - Murtuza Nuruddin
- Chittagong Eye Infirmary and Training Complex, Chittagong, Bangladesh
| | | | | | - Ngozi C Oguego
- Department of Ophthalmology, College of Medicine, University of Nigeria, Enugu, Nigeria
| | - Andrzej Olechowski
- Department of Ophthalmology, The Children's Memorial Health Institute, Warsaw, Poland
| | - Scott C N Oliver
- Sue Anschutz-Rodgers Eye Center, University of Colorado School of Medicine, Aurora
| | | | - Diego Ossandon
- Clínica Alemana de Santiago, Universidad del Desarrollo, Santiago, Chile
| | | | | | - Sally L Painter
- Eye Department, Birmingham Children's Hospital, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, United Kingdom
| | | | - Luisa Paiva
- National Ophthalmological Institute of Angola, Luanda, Angola
| | - Bikramjit P Pal
- H M Diwan Eye Foundation, and Tata Medical Center, Kolkata, India
| | | | - Ruzanna Papyan
- Department of Oncology, Yerevan State Medical University, and Pediatric Cancer and Blood Disorders Center of Armenia, Hematology Center after R. H. Yeolyan, Yerevan, Armenia
| | | | - Manoj Parulekar
- Eye Department, Birmingham Children's Hospital, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, United Kingdom
| | | | | | - Katarzyna Pawinska-Wasikowska
- Institute of Pediatrics, Jagiellonian University Medical College, Children's University Hospital of Krakow, Krakow, Poland
| | - Jacob Pe'er
- Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Sanja Peric
- University Hospital Center Zagreb, Zagreb, Croatia
| | - Chau T M Pham
- Vietnam National Institute of Ophthalmology, Ha Noi, Vietnam
| | - Remezo Philbert
- Centre Hospitalier Universitaire de Kamenge, Bujumbura, Burundi
| | | | - Pavel Pochop
- Department of Ophthalmology for Children and Adults, Second Faculty of Medicine, Charles University, and Motol University Hospital, Prague, Czech Republic
| | | | - Vladimir G Polyakov
- Head and Neck Tumors Department, SRI of Pediatric Oncology and Hematology, N.N. Blokhin Russian Cancer Research Center, Moscow, Russia
- Russian Medical Academy of Postgraduate Education, Moscow, Russia
| | - Manca T Pompe
- University Eye Hospital Ljubljana, University Medical Center Ljubljana, Ljubljana, Slovenia
| | | | - Daphna Prat
- The Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Tel Aviv University, Tel Aviv, Israel
| | | | - Ignatius Purwanto
- Sardjito Hospital, Faculty of Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | | | - Seema Qayyum
- The Children's Hospital and the Institute of Child Health, Lahore, Pakistan
| | - Jiang Qian
- Department of Ophthalmology, Eye and Ear, Nose, and Throat Hospital of Fudan University, Shanghai, China
| | - Ardizal Rahman
- Ophthalmology Department, Dr M. Djamil General Hospital, Faculty of Medicine, Andalas University, West Sumatra, Indonesia
| | | | | | | | | | | | - Marco A Ramirez-Ortiz
- Department of Ophthalmology, Hospital Infantil de Mexico Federico Gómez, Mexico City, Mexico
| | - Léa Raobela
- Centre Hospitalier Universitaire Joseph Ravoahangy Andrianavalona, Antananarivo, Madagascar
| | - Riffat Rashid
- Department of Oculoplasty and Ocular Oncology, Ispahani Islamia Eye Institute and Hospital, Dhaka, Bangladesh
| | - M Ashwin Reddy
- The Royal London Hospital, Barts Health NHS Trust, and Moorfields Eye Hospital NHS Foundation Trust, London, United Kingdom
| | - Ehud Reich
- Department of Ophthalmology, Davidoff Center for Oncology, Rabin Medical Center, Sackler School of Medicine, Tel Aviv University, Israel
| | - Lorna A Renner
- School of Medicine and Dentistry, Korle-Bu Teaching Hospital, University of Ghana, Accra, Ghana
| | | | | | | | - Petra Ritter-Sovinz
- Division of Pediatric Hematology and Oncology, Department of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Duangnate Rojanaporn
- Department of Ophthalmology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Livia Romero
- Unidad de Oncologia Ocular Hospital Oncologico Luis Razzetti, Caracas, Venezuela
| | - Soma R Roy
- Chittagong Eye Infirmary and Training Complex, Chittagong, Bangladesh
| | - Raya H Saab
- Children's Cancer Institute, American University of Beirut Medical Center, Beirut, Lebanon
| | - Svetlana Saakyan
- Moscow Helmholtz Research Institute of Eye Diseases, Moscow, Russia
| | - Ahmed H Sabhan
- Pediatric Oncology Unit, Children Welfare Teaching Hospital, College of Medicine, University of Baghdad, Baghdad, Iraq
| | - Mandeep S Sagoo
- NIHR Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital, and UCL Institute of Ophthalmology and London Retinoblastoma Service, Royal London Hospital, London, United Kingdom
| | - Azza M A Said
- Department of Ophthalmology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Rohit Saiju
- Tilganga Institute of Ophthalmology, Kathmandu, Nepal
| | - Beatriz Salas
- Hospital Dr Manuel Ascencio Villarroel, Cochabamba, Bolivia
| | | | | | | | | | | | | | - Ahad Sedaghat
- Department of Ophthalmology, Rasool Akram Hospital, Tehran, Iran
| | | | - Rachna Seth
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Ankoor S Shah
- Department of Ophthalmology, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts
| | | | | | - Sadik T Sherief
- Department of Ophthalmology, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | | | - Carol L Shields
- Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Sorath Noorani Siddiqui
- Department of Pediatric Ophthalmology and Strabismus, Al Shifa Trust Eye Hospital, Rawalpindi, Pakistan
| | - Sidi Sidi Cheikh
- Ophthalmology Department, Nouakchott Medical University, Nouakchott, Mauritania
| | - Sónia Silva
- Centro Hospital Universitário de Coimbra, University of Coimbra, Coimbra, Portugal
| | - Arun D Singh
- Cole Eye Institute, Cleveland Clinic, Cleveland, Ohio
| | | | - Usha Singh
- Department of Ophthalmology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Penny Singha
- Department of Ophthalmology, Songklanagarind Hospital, Prince of Songkla University, Songkla, Thailand
| | - Rita S Sitorus
- Department of Ophthalmology, Faculty of Medicine, Universitas Indonesia, and Dr Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia
| | - Alison H Skalet
- Casey Eye Institute, Oregon Health & Science University, Portland
| | - Hendrian D Soebagjo
- Department of Ophthalmology, Dr Soetomo General Hospital, Airlangga University, Surabaya, Indonesia
| | | | - Grace Ssali
- Mulago National Referral Hospital, Kampala, Uganda
| | - Andrew W Stacey
- Department of Ophthalmology, University of Washington, Seattle
| | - Sandra E Staffieri
- Department of Ophthalmology, Royal Children's Hospital, Parkville, Victoria, Australia
- Centre for Eye Research Australia, University of Melbourne, East Melbourne, Victoria, Australia
| | - Erin D Stahl
- Children's Mercy Hospital, Kansas City, Missouri
| | - Christina Stathopoulos
- Jules-Gonin Eye Hospital, Fondation Asile de Aveugles, University of Lausanne, Lausanne, Switzerland
| | - Branka Stirn Kranjc
- University Eye Hospital Ljubljana, University Medical Center Ljubljana, Ljubljana, Slovenia
| | - David K Stones
- Department of Paediatrics and Child Health, University of the Free State, Bloemfontein, South Africa
| | | | | | - Sadia Sultana
- Department of Oculoplasty and Ocular Oncology, Ispahani Islamia Eye Institute and Hospital, Dhaka, Bangladesh
| | - Xiantao Sun
- Henan Children's Hospital, Affiliated Children's Hospital of Zhengzhou University, Zhengzhou, China
| | - Meryl Sundy
- Casey Eye Institute, Oregon Health & Science University, Portland
| | - Rosanne Superstein
- Centre Hospitalier Universitaire Sainte-Justine, University of Montreal, Montréal, Quebec, Canada
| | - Eddy Supriyadi
- Sardjito Hospital, Faculty of Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | | | - Shigenobu Suzuki
- Department of Ophthalmic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Karel Svojgr
- Department of Pediatric Hematology and Oncology, Second Faculty of Medicine, Charles University, Motol University Hospital, Prague, Czech Republic
| | | | - Gevorg Tamamyan
- Department of Oncology, Yerevan State Medical University, and Pediatric Cancer and Blood Disorders Center of Armenia, Hematology Center after R. H. Yeolyan, Yerevan, Armenia
| | - Deborah Tan
- Singapore National Eye Center, Singapore, Singapore
| | - Alketa Tandili
- University Hospital Center Mother Theresa, Tirana, Albania
| | | | - Maryam Tashvighi
- MAHAK Hematology Oncology Research Center, Mahak Hospital, Tehran, Iran
| | | | - Edi S Tehuteru
- National Cancer Center, Dharmais Cancer Hospital, Jakarta, Indonesia
| | - Luiz F Teixeira
- Pediatric Oncology Institute, Federal University of São Paulo, São Paulo, Brazil
- Ophthalmology Department, Federal University of São Paulo, São Paulo, Brazil
| | - Kok Hoi Teh
- Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | | | - Helen Toledano
- Department of Pediatric Hematology-Oncology, Schneider Children's Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Doan L Trang
- Vietnam National Institute of Ophthalmology, Ha Noi, Vietnam
| | - Fousseyni Traoré
- Pediatric Oncology Service, Gabriel Toure Hospital, Bamako, Mali
| | | | - Samuray Tuncer
- Department of Ophthalmology, Faculty of Medicine, Ocular Oncology Service, Istanbul University, Istanbul, Turkey
| | | | - Ali B Umar
- Aminu Kano Teaching Hospital, Bayero University, Kano, Nigeria
| | - Emel Unal
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, Ankara University, Ankara, Turkey
| | | | - Steen F Urbak
- Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark
| | - Tatiana L Ushakova
- Head and Neck Tumors Department, SRI of Pediatric Oncology and Hematology, N.N. Blokhin Russian Cancer Research Center, Moscow, Russia
- Russian Medical Academy of Postgraduate Education, Moscow, Russia
| | | | | | | | - Adisai Varadisai
- Vitreo-Retina Research Unit, Department of Ophthalmology, Chulalongkorn University, Bangkok, Thailand
| | | | | | - Nevyana V Veleva-Krasteva
- Eye Clinic, Department of Ophthalmology, University Hospital Alexandrovska, Medical University, Sofia, Sofia, Bulgaria
| | | | - Andi A Victor
- Department of Ophthalmology, Faculty of Medicine, Universitas Indonesia, and Dr Cipto Mangunkusumo National General Hospital, Jakarta, Indonesia
| | | | | | - Vicktoria Vishnevskia-Dai
- The Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Tel Aviv University, Tel Aviv, Israel
| | | | | | | | - Keith Waddell
- Ruharo Eye Centre, Ruharo Mission Hospital, Mbarara, Uganda
| | | | | | - Yi-Zhuo Wang
- Department of Paediatrics, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Avery Weiss
- Department of Ophthalmology, University of Washington, Seattle
| | - Matthew W Wilson
- Department of Surgery, St Jude Children's Research Hospital, Memphis, Tennessee
| | - Amelia D C Wime
- National Ophthalmological Institute of Angola, Luanda, Angola
| | | | | | | | - Phanthipha Wongwai
- Department of Ophthalmology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Daoman Xiang
- Department of Pediatric Ophthalmology, Guangzhou Children's Hospital and Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | | | - Jason C Yam
- Hong Kong Eye Hospital, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Huasheng Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Jenny M Yanga
- Service d'Ophtalmologie, Cliniques Universitaires de Kinshasa, Université de Kinshasa, Kinshasa, Democratic Republic of Congo
| | | | - Vera A Yarovaya
- S.Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russia
| | - Andrey A Yarovoy
- S.Fyodorov Eye Microsurgery Federal State Institution, Moscow, Russia
| | - Huijing Ye
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | | | - Putu Yuliawati
- Department of Ophthalmology, Faculty of Medicine, Udayana University, Sanglah Eye Hospital, Bali, Indonesia
| | | | - Ekhtelbenina Zein
- Assistante Hospitalo Universitaire, Faculte de Medecine de Nouakchott Medecin Oncopediatre, Center National d'Oncologie, Nouakchott, Mauritania
| | - Chengyue Zhang
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Yi Zhang
- Department of Paediatrics, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Junyang Zhao
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Xiaoyu Zheng
- Department of Ophthalmology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | | | - Nida Zia
- The Indus Hospital, Karachi, Pakistan
| | - Othman A O Ziko
- Department of Ophthalmology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Marcia Zondervan
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Richard Bowman
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
- Ophthalmology Department, Great Ormond Street Hospital, London, United Kingdom
| |
Collapse
|
14
|
Garza-Garza LA, Ruiz-Lozano RE, Rebolledo-Méndez G, Ibarra-Nava I, Morales-Garza HJ, Ancona-Lezama D. Challenge of Retinoblastoma in Mexico in 2020: Perspectives and Solutions. J Ophthalmol 2020; 2020:1953602. [PMID: 32850140 PMCID: PMC7439193 DOI: 10.1155/2020/1953602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/28/2020] [Accepted: 06/29/2020] [Indexed: 11/30/2022] Open
Abstract
Early diagnosis and positive outcomes of retinoblastoma in childhood have been positively correlated with the economic wealth of high-income countries (HICs) worldwide. Adequate curability and survival rates, adherence to treatment, presence of poor prognostic initial clinical signs, and metastatic disease at diagnosis appear to have a less favorable picture in low-income countries (LICs). However, this is not always the case. An example is Argentina, where disease-free survival rates of retinoblastoma are notably higher than expected when taking into consideration its economic situation. Unfortunately, as in other Latin American LICs, retinoblastoma outcomes in Mexico are worrisome. Interestingly, the Human Development Index (HDI) in Mexico varies widely between its different geographical regions. While in some states, the HDI resembles those of high-income countries, and in others, the opposite is observed. A unifying picture of Mexico's developmental status, health resources, indicators, and other factors possibly influencing outcomes in retinoblastoma is currently unavailable. The present review explores the previously mentioned factors in Mexico and compares them to other countries. Additionally, it recommends solutions or enhancements where possible.
Collapse
Affiliation(s)
- Lucas A. Garza-Garza
- 1Tecnologico de Monterrey, School of Medicine and Health Sciences, Ocular Oncology Service at Institute of Ophthalmology and Visual Sciences, Hospital Zambrano-Hellion, San Pedro Garza Garcia, Nuevo León, Mexico
| | - Raúl E. Ruiz-Lozano
- 1Tecnologico de Monterrey, School of Medicine and Health Sciences, Ocular Oncology Service at Institute of Ophthalmology and Visual Sciences, Hospital Zambrano-Hellion, San Pedro Garza Garcia, Nuevo León, Mexico
| | - Genaro Rebolledo-Méndez
- 2Writing Lab, TecLabs, Vicerrectoria de Investigación y Transferencia de Tecnología, Tecnologico de Monterrey, Monterrey, Mexico
| | - Ismael Ibarra-Nava
- 3Department of Preventive Medicine and Public Health, Faculty of Medicine, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Héctor J. Morales-Garza
- 1Tecnologico de Monterrey, School of Medicine and Health Sciences, Ocular Oncology Service at Institute of Ophthalmology and Visual Sciences, Hospital Zambrano-Hellion, San Pedro Garza Garcia, Nuevo León, Mexico
| | - David Ancona-Lezama
- 1Tecnologico de Monterrey, School of Medicine and Health Sciences, Ocular Oncology Service at Institute of Ophthalmology and Visual Sciences, Hospital Zambrano-Hellion, San Pedro Garza Garcia, Nuevo León, Mexico
| |
Collapse
|
15
|
Costa AMAM, Magluta C, Gomes Junior SC. Evaluation of continuing education of family health strategy teams for the early identification of suspected cases of cancer in children. BMC MEDICAL EDUCATION 2017; 17:155. [PMID: 28882154 PMCID: PMC5590150 DOI: 10.1186/s12909-017-0993-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 08/30/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND This study evaluated the influence of continuing education of family health strategy teams by the Ronald McDonald Institute program on the early diagnosis of cancer in children and adolescents. METHODS The study applied Habicht's model to evaluate the adequacy and plausibility of continuing education by using as outcome the number of children with suspected cancer who were referred to the hospital of references in the 1 year before and 1 year after intervention and the number of patients referred by intervention group and control group family health strategy teams. Medical records from each hospital of reference were used to collect information of suspect cases of cancer. Descriptive analyses were performed using frequencies and mean values. Chi-square tests were used to assess statistically significant differences between the groups and periods by using p-values < 0.05. RESULTS The results showed a 30.6% increase in the number of children referred to the hospital of reference for suspected cancer in the post-intervention period; in addition, the family health strategy teams that underwent the intervention referred 3.6 times more number of children to hospital of references than did the control group. Only the intervention group showed an increase in the number of confirmed cases. CONCLUSIONS This evaluation of a continuing education program for early identification of pediatric cancer showed that the program was adequate in achieving the established goals and that the results could be attributed to the program.
Collapse
Affiliation(s)
- Ana Maria Aranha Magalhaes Costa
- Unidade de Pesquisa Clínica, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz ( Fiocruz ), Av. Rui Barbosa 716 Flamengo, Rio de Janeiro, 22250-020 Rio de Janeiro Brazil
| | - Cynthia Magluta
- Unidade de Pesquisa Clínica, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz ( Fiocruz ), Av. Rui Barbosa 716 Flamengo, Rio de Janeiro, 22250-020 Rio de Janeiro Brazil
| | - Saint Clair Gomes Junior
- Unidade de Pesquisa Clínica, Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira, Fundação Oswaldo Cruz ( Fiocruz ), Av. Rui Barbosa 716 Flamengo, Rio de Janeiro, 22250-020 Rio de Janeiro Brazil
| |
Collapse
|
16
|
Lo JC, Rodríguez C, Monestel R, Zúñiga A. Clinical, epidemiological, and therapeutic profile of patients with a retinoblastoma diagnosis experience in the Costa Rica National Children's Hospital Oncology Unit from January 2009 to December 2015. Ecancermedicalscience 2017; 11:754. [PMID: 28798812 PMCID: PMC5533600 DOI: 10.3332/ecancer.2017.754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Indexed: 01/07/2023] Open
Abstract
INTRODUCTION Retinoblastoma represents only 3% of paediatric cancers, but it is the most prevalent intraocular tumour in this population. It develops in the retina as a primitive neuroectodermal tumour that affects development during gestation. The tumour presents in two different forms depending on whether or not it expresses a genetic modification. For patients diagnosed at preschool age, 75% are unilateral non-hereditary cases. While enucleation is the preferred treatment for advanced stages of the tumour, other modalities, such as systemic and intraocular chemotherapy, radiotherapy and local treatments with thermotherapy, cryotherapy, and brachytherapy can be used to try to preserve the eye. However, applying radiation therapy treatments increases the risk of secondary tumours. OBJECTIVE To analyse the results obtained from patients with a retinoblastoma diagnosis at the Costa Rica National Children's Hospital (HNN) Oncology Unit who received external beam radiation therapy and other therapeutic modalities during the period from January 2009 to December 2015. MATERIALS AND METHODS Data were extracted from the patient's medical records and entered in a data collection instrument. We then analysed the results and formulated conclusions. RESULTS A total of 36 patients were evaluated. This corresponded to 45 cases or the number of eyes affected by bilateral presentation of retinoblastoma. The documented incidence was 0.83 cases per 10,000 live births and the majority were female preschool-age children. Of these, 40% presented bilaterally and 13% were of hereditary origin. Up to 78% of these cases were diagnosed with advanced stage D and stage E. All patients who received conservative treatment progressed, requiring up to four lines of treatment. Eight patients, all in the most advanced stage, received external beam radiation due to the failure of other modalities. The main adverse effects observed were radiodermatitis, facial hypoplasia and conjunctivitis. Additionally, we report the emergence of a secondary neoplasm in two patients, one post-chemotherapy and the other post-radiotherapy. CONCLUSIONS Advanced-stage patients who initially received conservative treatments responded more poorly than those treated more aggressively with surgery alone or with surgery combined with another treatment modality. Treatment with radiation therapy was used in 22% of the cases (8 patients) and all patients treated with radiotherapy showed some adverse effects.
Collapse
Affiliation(s)
- Jennie Chen Lo
- Radiation Therapy Unit, Department of Hematology-Oncology, Mexico Hospital, CCSS, San José, Costa Rica
| | - Carlos Rodríguez
- Oncology Unit, Department of Hematology-Oncology, National Children's Hospital, CCSS, San José, Costa Rica
| | - Rigoberto Monestel
- Radiation Therapy Unit, Department of Hematology-Oncology, Mexico Hospital, CCSS, San José, Costa Rica
| | - Arnoldo Zúñiga
- Radiation Therapy Unit, Department of Hematology-Oncology, Mexico Hospital, CCSS, San José, Costa Rica
| |
Collapse
|
17
|
|
18
|
Pedrosa F, Shaikh F, Rivera G, Ribeiro R, Qaddoumi I. The Impact of Prospective Telemedicine Implementation in the Management of Childhood Acute Lymphoblastic Leukemia in Recife, Brazil. Telemed J E Health 2017; 23:863-867. [PMID: 28422613 DOI: 10.1089/tmj.2016.0273] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND A gap in childhood cancer outcomes remains between developed and developing countries. Persistence of this gap may be caused by financial, social, or educational disparities. Twinning and distance learning initiatives may improve such disparities. Integrating telemedicine into pediatric oncology twinning programs enhances education and facilitates patient-centered capacity building. MATERIALS AND METHODS We performed an analysis of Web-based meetings held from August 2005 through July 2009 between the International Outreach Program at St. Jude Children's Research Hospital and the Instituto Materno Infantil de Pernambuco (IMIP) in Recife, Brazil. We determined the effect of these online conferences on the development and implementation of an innovative protocol for children with acute lymphoblastic leukemia (ALL) at IMIP. RESULTS Meetings occurred in 45 months of the 48-month study period with an average of two meetings per month. A total of 163 new patients were discussed during the study period; we retrieved documentation of patient-related discussions for 147 of them, constituting 286 discussions. On average, each patient was discussed 1.9 times (range, 1-15 discussions/patient). Compared with that of the era predating the online meetings (1993-2005), overall mortality, early death, and relapse of patients with ALL decreased after the telemedicine program was instituted at IMIP. DISCUSSION Personal dedication and institutional support are essential for successful telemedicine initiatives. Documentation and archival of meetings are important for accurately measuring outcomes and developing methods for improved care. CONCLUSIONS Integration of telemedicine into twinning programs facilitates communication about interventions, leading to improved outcomes of pediatric patients with cancer.
Collapse
Affiliation(s)
- Francisco Pedrosa
- 1 Department of Oncology, Instituto Materno-Infantil de Pernambuco , Recife, Brazil
| | - Faisal Shaikh
- 2 Department of Internal Medicine, Weill Cornell University , New York, New York
| | - Gaston Rivera
- 3 Department of Global Pediatric Medicine, St. Jude Children's Research Hospital , Memphis, Tennessee
| | - Raul Ribeiro
- 3 Department of Global Pediatric Medicine, St. Jude Children's Research Hospital , Memphis, Tennessee
| | - Ibrahim Qaddoumi
- 3 Department of Global Pediatric Medicine, St. Jude Children's Research Hospital , Memphis, Tennessee
| |
Collapse
|
19
|
Ramírez-Ortiz MA, Lansingh VC, Eckert KA, Haik BG, Phillips BX, Bosch-Canto V, González-Pérez G, Villavicencio-Torres A, Etulain-González A. Systematic review of the current status of programs and general knowledge of diagnosis and management of retinoblastoma. BOLETIN MEDICO DEL HOSPITAL INFANTIL DE MEXICO 2017; 74:41-54. [PMID: 29364813 DOI: 10.1016/j.bmhimx.2016.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2015] [Revised: 07/06/2016] [Accepted: 08/10/2016] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND This systematic review aims to report the current knowledge of retinoblastoma (Rb) and its implications in Mexico. We analyzed clinical and demographic data of patients with Rb at select hospitals with Rb programs or that treat and refer patients with Rb, and identified the gaps in practice. We propose solutions to improve diagnosis, provide adequate treatment, and improve patient uptake. METHODS A general review was conducted on PubMed of peer-reviewed literature on Rb in Mexico. Ophthalmology Department Heads or Directors of Rb programs at seven hospitals in Mexico were contacted for data available on their patients with Rb. RESULTS Five hospitals provided clinical data on 777 patients with Rb in a period spanning 2000-2015. Of the 122 patients with treatment, 83.4% underwent enucleation. From 33 to 45.3% of Rb tumors in Mexico reach an advanced intraocular stage of development. Knowledge of the disease is limited, despite the fact that the Mexican Retinoblastoma Group has elaborated Rb treatment guidelines and is developing a national Rb registry. Especially in the Southern states, prevalence and outcomes are comparable to African and Asian countries, and only few patients are referred to national treatment centers. Only three institutions have comprehensive Rb programs. CONCLUSIONS There is an immediate need in Mexico to expand primary care providers' knowledge of Rb and to expand and upgrade current Rb programs to meet the needs of the population adequately. Diagnosis and care of Rb patients in Mexico can also be improved by the establishment of a national Rb registry and a national early detection program, and by increased use of the national treatment protocol.
Collapse
Affiliation(s)
- Marco A Ramírez-Ortiz
- Departmento de Oftalmología, Hospital Infantil de México Federico Gómez, Mexico City, Mexico.
| | - Van C Lansingh
- Instituto Mexicano de Oftalmología, Querétaro, Querétaro, Mexico; Help Me See, NY, USA; Department of Ophthalmology, Hamilton Eye Institute, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Kristen A Eckert
- Independent Public Health Consultant, Tapachula, Chiapas, Mexico
| | - Barrett G Haik
- Department of Ophthalmology, Hamilton Eye Institute, The University of Tennessee Health Science Center, Memphis, TN, USA
| | - Blanca X Phillips
- Department of Ophthalmology, Hamilton Eye Institute, The University of Tennessee Health Science Center, Memphis, TN, USA
| | | | | | | | | |
Collapse
|
20
|
Singh G, Daniels AB. Disparities in Retinoblastoma Presentation, Treatment, and Outcomes in Developed and Less-Developed Countries. Semin Ophthalmol 2016; 31:310-6. [PMID: 27127937 DOI: 10.3109/08820538.2016.1154177] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Retinoblastoma (RB) is the most common intraocular malignancy in children. In the past century, RB survival rates in developed countries (DCs) have improved from <5% to as high as 99%. In contrast, in less developed countries (LDCs) where the tumor burden is greatest, survival rates remain poor, with some countries reporting survival rates as low as 0-5%. In addition, there are disparities between DCs and LDCs in RB presentation, treatment modalities, and prognosis. These disparities are due to many underlying causes, including delays in diagnosis, access to medical care, patient and physician familiarity with the disease, availability and cost of treatment, and patient acceptance of enucleation. It is our belief that attempts to extend the improvements in prognosis achieved in DCs to various LDCs must be culturally sensitive and tailored to each country's specific challenges, and thus, a "one-size-fits-all" approach to improving patient outcomes in LDCs is unlikely to work well. We discuss several culturally sensitive approaches that have been successfully implemented in various LDCs, including those that make use of telemedicine and "twinning" with centers of excellence around the world.
Collapse
Affiliation(s)
- Gobind Singh
- a Department of Ophthalmology and Visual Sciences , Vanderbilt University Medical Center , Nashville , TN , USA
| | - Anthony B Daniels
- a Department of Ophthalmology and Visual Sciences , Vanderbilt University Medical Center , Nashville , TN , USA.,b Department of Radiation Oncology , Vanderbilt University Medical Center , Nashville , TN , USA.,c Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center , Nashville , TN , USA.,d Department of Cancer Biology , Vanderbilt University , Nashville , TN , USA
| |
Collapse
|
21
|
Barr R. Developments in paediatric care in Latin America. Lancet Oncol 2015; 16:1401-3. [PMID: 26522155 DOI: 10.1016/s1470-2045(15)00379-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 09/29/2015] [Indexed: 11/17/2022]
Affiliation(s)
- Ronald Barr
- Department of Pediatrics, Division of Hematology-Oncology, McMaster University, Ontario L8S 4J9, Canada.
| |
Collapse
|
22
|
Lansingh VC, Eckert KA, Haik BG, Phillipps BX, Bosch-Canto V, Leal-Leal C, Ramírez-Ortiz MA. Retinoblastoma in Mexico: part I. A review of general knowledge of the disease, diagnosis, and management. BOLETIN MEDICO DEL HOSPITAL INFANTIL DE MEXICO 2015; 72:299-306. [DOI: 10.1016/j.bmhimx.2015.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 08/27/2015] [Accepted: 09/04/2015] [Indexed: 12/20/2022] Open
|
23
|
Dimaras H, Corson TW, Cobrinik D, White A, Zhao J, Munier FL, Abramson DH, Shields CL, Chantada GL, Njuguna F, Gallie BL. Retinoblastoma. Nat Rev Dis Primers 2015; 1:15021. [PMID: 27189421 PMCID: PMC5744255 DOI: 10.1038/nrdp.2015.21] [Citation(s) in RCA: 318] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Retinoblastoma is a rare cancer of the infant retina that is diagnosed in approximately 8,000 children each year worldwide. It forms when both retinoblastoma gene (RB1) alleles are mutated in a susceptible retinal cell, probably a cone photoreceptor precursor. Loss of the tumour-suppressive functions of the retinoblastoma protein (pRB) leads to uncontrolled cell division and recurrent genomic changes during tumour progression. Although pRB is expressed in almost all tissues, cone precursors have biochemical and molecular features that may sensitize them to RB1 loss and enable tumorigenesis. Patient survival is >95% in high-income countries but <30% globally. However, outcomes are improving owing to increased disease awareness for earlier diagnosis, application of new guidelines and sharing of expertise. Intra-arterial and intravitreal chemotherapy have emerged as promising methods to salvage eyes that with conventional treatment might have been lost. Ongoing international collaborations will replace the multiple different classifications of eye involvement with standardized definitions to consistently assess the eligibility, efficacy and safety of treatment options. Life-long follow-up is warranted, as survivors of heritable retinoblastoma are at risk for developing second cancers. Defining the molecular consequences of RB1 loss in diverse tissues may open new avenues for treatment and prevention of retinoblastoma, as well as second cancers, in patients with germline RB1 mutations.
Collapse
Affiliation(s)
- Helen Dimaras
- Department of Ophthalmology & Vision Sciences, The Hospital for Sick Children & University of Toronto, Toronto, Canada
| | - Timothy W. Corson
- Eugene and Marilyn Glick Eye Institute, Indiana University School of Medicine, Indianapolis, IN, USA
| | - David Cobrinik
- The Vision Center, Children’s Hospital Los Angeles & USC Eye Institute, University of Southern California, Los Angeles, CA USA
| | | | - Junyang Zhao
- Department of Ophthalmology, Beijing Children’s Hospital, Capital Medial University, Beijing, China
| | - Francis L. Munier
- Department of Ophthalmology, Jules-Gonin Eye Hospital, Lausanne, Switzerland
| | - David H. Abramson
- Department of Ophthalmology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Carol L. Shields
- Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, USA
| | | | - Festus Njuguna
- Department of Department of Child Health and Paediatrics, Moi University, Eldoret, Kenya
| | - Brenda L. Gallie
- Department of Ophthalmology & Vision Sciences, The Hospital for Sick Children & University of Toronto, 555 University Ave, Toronto, Ontario M5G1X8, Canada
| |
Collapse
|
24
|
Abstract
BACKGROUND Enucleation (eye removal) is often the only curative treatment for the childhood eye cancer retinoblastoma, yet parental refusal of enucleation commonly contributes to treatment delay and poor survival globally. METHODS Physicians who treat retinoblastoma were surveyed to glean underlying reasons for treatment refusal. RESULTS Refusal rates were higher when less time was spent with parents explaining retinoblastoma/enucleation, and where fewer support services were available. Reasons for refusal included parental belief in alternative treatments, culture, and social stigma. CONCLUSIONS We suggest strategies to increase parental compliance with enucleation and save the lives of children with retinoblastoma.
Collapse
Affiliation(s)
| | - Helen Dimaras
- b Department of Ophthalmology and Vision Science , University of Toronto .,c The Division of Visual Science , Toronto Western Research Institute , and.,d The Department of Ophthalmology & Vision Sciences , The Hospital for Sick Children , Toronto , Ontario , Canada
| |
Collapse
|
25
|
Barr RD, Antillón Klussmann F, Baez F, Bonilla M, Moreno B, Navarrete M, Nieves R, Peña A, Conter V, De Alarcón P, Howard SC, Ribeiro RC, Rodriguez-Galindo C, Valsecchi MG, Biondi A, Velez G, Tognoni G, Cavalli F, Masera G. Asociación de Hemato-Oncología Pediátrica de Centro América (AHOPCA): a model for sustainable development in pediatric oncology. Pediatr Blood Cancer 2014; 61:345-54. [PMID: 24376230 DOI: 10.1002/pbc.24802] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 09/10/2013] [Indexed: 11/06/2022]
Abstract
Bridging the survival gap for children with cancer, between those (the great majority) in low and middle income countries (LMIC) and their economically advantaged counterparts, is a challenge that has been addressed by twinning institutions in high income countries with centers in LMIC. The long-established partnership between a Central American consortium--Asociación de Hemato-Oncología Pediátrica de Centro América (AHOPCA)--and institutions in Europe and North America provides a striking example of such a twinning program. The demonstrable success of this endeavor offers a model for improving the health outcomes of children with cancer worldwide. As this remarkable enterprise celebrates its 15th anniversary, it is appropriate to reflect on its origin, subsequent growth and development, and the lessons it provides for others embarking on or already engaged in similar journeys. Many challenges have been encountered and not all yet overcome. Commitment to the endeavor, collaboration in its achievements and determination to overcome obstacles collectively are the hallmarks that stamp AHOPCA as a particularly successful partnership in advancing pediatric oncology in the developing world.
Collapse
Affiliation(s)
- Ronald D Barr
- Departments of Pediatrics, Pathology and Medicine, McMaster University and McMaster Children's Hospital, Hamilton, Ontario, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Santiago TC, Jenkins JJ. Histopathologic Diagnosis of Pediatric Neoplasms: A Review of International Consultations. Arch Pathol Lab Med 2013; 137:1648-53. [DOI: 10.5858/arpa.2012-0571-oa] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Context.—Correct histopathologic diagnosis is fundamental to defining proper treatment and improving outcomes in children with malignancies. The Department of Pathology at St. Jude Children's Research Hospital (SJCRH) has collaborated with SJCRH International Outreach Program partner sites to improve the accuracy of histopathologic diagnoses in countries with limited resources. Pathologists at SJCRH provide review and evaluation of cases that are considered difficult or complex.
Objectives.—To determine the quality of pathology diagnosis and to identify areas for improvement in our international partner sites, we retrospectively analyzed all the international cases that were submitted for review. A comparison of our data with selected reports of surgical pathology error rates published in the medical literature was performed.
Design.—From January 2009 through December 2011, SJCRH received 763 cases submitted by international pathologists from 37 countries for histopathologic review and evaluation. Of 763 cases reviewed, 705 (92.4%) met the criteria for inclusion in this study. Rates of concordance between the submitted diagnoses and SJCRH reviewed diagnoses were analyzed.
Results.—Overall concordance, minor disagreement, and major disagreement rates between submitted diagnoses and SJCRH reviewed diagnoses were 430 (61.0%), 98 (13.9%), and 177 (25.1%) of the cases, respectively. Major disagreement rates ranged from 13.7% to 37.1% among studied countries.
Conclusions.—The major disagreement rate between referring international sites and SJCRH was substantially higher than the major disagreement rate among US institutions. Lack of the availability of immunohistochemistry and the training of pathologists in the diagnosis of pediatric neoplasms may have contributed to the discrepancies.
Collapse
Affiliation(s)
- Teresa C. Santiago
- From the Department of Pathology, University of Tennessee Health Science Center, Memphis (Dr Santiago); and the Department of Pathology, St. Jude Children's Research Hospital, Memphis (Dr Jenkins)
| | - Jesse J. Jenkins
- From the Department of Pathology, University of Tennessee Health Science Center, Memphis (Dr Santiago); and the Department of Pathology, St. Jude Children's Research Hospital, Memphis (Dr Jenkins)
| |
Collapse
|
27
|
Goss PE, Lee BL, Badovinac-Crnjevic T, Strasser-Weippl K, Chavarri-Guerra Y, St Louis J, Villarreal-Garza C, Unger-Saldaña K, Ferreyra M, Debiasi M, Liedke PER, Touya D, Werutsky G, Higgins M, Fan L, Vasconcelos C, Cazap E, Vallejos C, Mohar A, Knaul F, Arreola H, Batura R, Luciani S, Sullivan R, Finkelstein D, Simon S, Barrios C, Kightlinger R, Gelrud A, Bychkovsky V, Lopes G, Stefani S, Blaya M, Souza FH, Santos FS, Kaemmerer A, de Azambuja E, Zorilla AFC, Murillo R, Jeronimo J, Tsu V, Carvalho A, Gil CF, Sternberg C, Dueñas-Gonzalez A, Sgroi D, Cuello M, Fresco R, Reis RM, Masera G, Gabús R, Ribeiro R, Knust R, Ismael G, Rosenblatt E, Roth B, Villa L, Solares AL, Leon MX, Torres-Vigil I, Covarrubias-Gomez A, Hernández A, Bertolino M, Schwartsmann G, Santillana S, Esteva F, Fein L, Mano M, Gomez H, Hurlbert M, Durstine A, Azenha G. Planning cancer control in Latin America and the Caribbean. Lancet Oncol 2013; 14:391-436. [PMID: 23628188 DOI: 10.1016/s1470-2045(13)70048-2] [Citation(s) in RCA: 310] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Non-communicable diseases, including cancer, are overtaking infectious disease as the leading health-care threat in middle-income and low-income countries. Latin American and Caribbean countries are struggling to respond to increasing morbidity and death from advanced disease. Health ministries and health-care systems in these countries face many challenges caring for patients with advanced cancer: inadequate funding; inequitable distribution of resources and services; inadequate numbers, training, and distribution of health-care personnel and equipment; lack of adequate care for many populations based on socioeconomic, geographic, ethnic, and other factors; and current systems geared toward the needs of wealthy, urban minorities at a cost to the entire population. This burgeoning cancer problem threatens to cause widespread suffering and economic peril to the countries of Latin America. Prompt and deliberate actions must be taken to avoid this scenario. Increasing efforts towards prevention of cancer and avoidance of advanced, stage IV disease will reduce suffering and mortality and will make overall cancer care more affordable. We hope the findings of our Commission and our recommendations will inspire Latin American stakeholders to redouble their efforts to address this increasing cancer burden and to prevent it from worsening and threatening their societies.
Collapse
Affiliation(s)
- Paul E Goss
- Avon International Breast Cancer Research Program, Massachusetts General Hospital, Boston, MA 02114, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Kumar A, Moulik NR, Mishra RK, Kumar D. Causes, outcome and prevention of abandonment in retinoblastoma in India. Pediatr Blood Cancer 2013; 60:771-5. [PMID: 23303533 DOI: 10.1002/pbc.24454] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Accepted: 12/03/2012] [Indexed: 11/06/2022]
Abstract
BACKGROUND The high-cure rates of 90% in retinoblastoma are not replicated in developing countries due to late presentation and poor compliance to treatment. The present study takes a closer look at causes of abandonment of therapy and effectiveness of counselling in reducing abandonment. PROCEDURE A retrospective study of children with retinoblastoma registered at our centre from March 2008 through August 2011. RESULTS Fifty (49.50%) of 101 children registered for treatment abandoned therapy. Abandonment rates were significantly higher in rural as compared to urban children (P = 0.02). There was no significant difference in rate of abandonment between stages or laterality of disease and other socio-demographic factors. Telephone calls were more effective than letters in tracing patients (31.2% vs. 2.4%). Major reasons cited behind abandonment were financial problems (30%) and unwillingness to enucleate (20%). Of the 12 children who returned and were retreated 6 (50%) died of progressive disease. Nineteen (73%) of those who did not return died at home. Abandonment rates steadily declined from 71.42% in 2008 to 16.66% in 2011 (P = 0.01) due to effective pre-abandonment counselling by a support team under the National Retinoblastoma Registry of India from 2009. CONCLUSIONS Abandonment rates for children with retinoblastoma continue to be unacceptably high. Rural background, financial constraints and hesitancy to enucleate were important causes behind abandonment. Outcome of patients who abandoned treatment was uniformly dismal. Inclusion of support team and intensified initial counselling helped in improving compliance.
Collapse
Affiliation(s)
- Archana Kumar
- Division of Paediatric Haematology-Oncology, Department of Paediatrics, King George's Medical University Lucknow, Uttar Pradesh, India.
| | | | | | | |
Collapse
|
29
|
Chantada G, Luna-Fineman S, Sitorus RS, Kruger M, Israels T, Leal-Leal C, Bakhshi S, Qaddoumi I, Abramson DH, Doz F. SIOP-PODC recommendations for graduated-intensity treatment of retinoblastoma in developing countries. Pediatr Blood Cancer 2013; 60:719-27. [PMID: 23335388 DOI: 10.1002/pbc.24468] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 12/13/2012] [Indexed: 11/12/2022]
Abstract
Retinoblastoma remains incurable in many regions of the world. The major obstacles to cure are delayed diagnosis, poor treatment compliance, and lack of evidence-based recommendations for clinical management. Although enucleation is curative for intraocular disease, in developing countries retinoblastoma is often diagnosed after the disease has disseminated beyond the eye. A SIOP-PODC committee generated guidelines for the clinical management of retinoblastoma in developing countries and developed a classification system based on the resources available in those settings. Recommendations are provided for staging and treatment of unilateral and bilateral retinoblastoma and counseling of families for whom compliance is an issue.
Collapse
Affiliation(s)
- Guillermo Chantada
- Hospital de Pediatria SAMIC Prof Dr Juan P Garrahan, Buenos Aires, Argentina.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Abstract
PURPOSE OF REVIEW Reduction of child mortality is one of the Millennium Development Goals; as low-income and middle-income countries (LMICs) advance toward the achievement of this goal, initiatives aimed at reducing the burden of noncommunicable diseases, including childhood cancer, need to be developed. RECENT FINDINGS Approximately 200 000 children and adolescents are diagnosed with cancer every year worldwide; of those, 80% live in LMICs, which account for 90% of the deaths. Lack of quality population-based cancer registries in LMICs limits our knowledge of the epidemiology of pediatric cancer; however, available information showing variations in incidence may indicate unique interactions between environmental and genetic factors that could provide clues to cause. Outcome of children with cancer in LMICs is dictated by late presentation and underdiagnosis, high abandonment rates, high prevalence of malnutrition and other comorbidities, suboptimal supportive and palliative care, and limited access to curative therapies. Initiatives integrating program building with education of healthcare providers and research have proven to be successful in the development of regional capacity. Intensity-graduated treatments adjusted to the local capacity have been developed. SUMMARY Childhood cancer burden is shifted toward LMICs; global initiatives directed at pediatric cancer care and control are urgently needed. International partnerships facilitating stepwise processes that build capacity while incorporating epidemiology and health services research and implementing intensity-graduated treatments have been shown to be effective.
Collapse
|
31
|
Naseripour M. "Retinoblastoma survival disparity": The expanding horizon in developing countries. Saudi J Ophthalmol 2012; 26:157-61. [PMID: 23960987 PMCID: PMC3729846 DOI: 10.1016/j.sjopt.2012.02.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2012] [Revised: 02/03/2012] [Accepted: 02/05/2012] [Indexed: 11/28/2022] Open
Abstract
The patients' survival for the most common intraocular tumor in children, retinoblastoma, has a wide spectrum among the world countries. This study was conducted to provide an overview of the retinoblastoma survival disparity worldwide by discussing the trends of patients' survival, as well as recent advances in the management of retinoblastoma. The design of this study was literature review and commentary. Selected articles from PubMed (except one) including both developing and developed countries regarding the patients' survival in retinoblastoma were considered and reviewed critically. An analysis of 47 articles was performed. In conclusion, in spite of an obvious contrast of retinoblastoma survival disparity in the world, the expanding horizons in developing countries are promising and continuing on all fronts and results are hope-inspiring.
Collapse
Affiliation(s)
- Masood Naseripour
- Eye Research Center, Rassoul Akram Hospital, Tehran University of Medical Sciences, Niayesh Avenue, Sattar-khan Street, Tehran, Iran
| |
Collapse
|
32
|
Luna-Fineman S, Barnoya M, Bonilla M, Fu L, Baez F, Rodríguez-Galindo C. Retinoblastoma in Central America: report from the Central American Association of Pediatric Hematology Oncology (AHOPCA). Pediatr Blood Cancer 2012; 58:545-50. [PMID: 21910211 DOI: 10.1002/pbc.23307] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2011] [Accepted: 07/18/2011] [Indexed: 11/06/2022]
Abstract
BACKGROUND Retinoblastoma is highly curable in high income countries. Low income countries have poor results due to advanced disease and lack of resources. Central American Association of Pediatric Hematology Oncology (AHOPCA) aimed to standardize the approach and to improve outcomes of patients with retinoblastoma. PROCEDURE One hundred seventy-one patients, age <18 years newly diagnosed with retinoblastoma were treated according to laterality and stage. Therapeutic modalities were: surgery (enucleation), local control (laser therapy, cryotherapy), chemotherapy, and radiation therapy. Chemotherapy consisted of vincristine, etoposide, and carboplatin (6 cycles). Outcomes were measured by overall survival. Events were abandonment of therapy and death. RESULTS One hundred seventy-one patients (129 unilateral, 42 bilateral) were treated. Median age was 2 years 4 months; 112 (66%) were diagnosed before 3 years of age. 119 (92%) eyes in patients with unilateral disease were Reese-Ellsworth IV or V versus 52 (62%) eyes in patients with bilateral disease. Extraocular disease was more prevalent in unilateral disease (65% vs. 50%). Older age at diagnosis correlated with higher stage. Estimated overall survival at 60 months was 0.48 ± 0.04. Outcome of patients with bilateral disease was significantly better than unilateral (62% ± 0.09 vs. 42% ± 0.05, P = 0.0006). Thirty-eight patients (22%) refused or abandoned therapy. CONCLUSIONS Protocol-directed therapy for retinoblastoma in Central America is possible. Patients present with advanced disease and outcome is significantly worse than in middle and high-income countries. Refusal and abandonment of therapy are societal events that affect outcome. Initiatives aimed at improving early diagnosis, while dedicated treatment centers are developed, are critical.
Collapse
Affiliation(s)
- Sandra Luna-Fineman
- Pediatric Hematology/Oncology, Stanford University School of Medicine, Palo Alto, California 94304, USA.
| | | | | | | | | | | |
Collapse
|
33
|
|
34
|
Zahery SM, Saliminejad K, Khorshid HRK, Ahani A. Genotyping of Polymorphic Microsatellite Markers Linked to RB1 Locus in Iranian Population. Avicenna J Med Biotechnol 2012; 4:193-9. [PMID: 23407622 PMCID: PMC3558219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 07/03/2012] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Retinoblastoma is the most common intraocular tumor in childhood and mutation in the RB1 gene will trigger the tumorigenesis. So far, a wide range of the mutations along the length of RB1 gene have been reported. However, some could not be detected by common detection methods. In such condition, linkage analysis using microsatellite markers is suggested to trace unknown RB1 mutations in the affected family. The aim of the present study was to evaluate the heterozygosity rates and genotyping of three microsatellite markers near or inside of the RB1 gene. METHODS Totally, 120 unrelated healthy people from Fardis, Karaj, Iran were recruited and from each participant genomic DNA was extracted from 5 ml of peripheral blood. Three microsatellite markers D13S153, D13S156 and D13S128 located within or adjacent to the RB1 gene were selected for linkage analysis. The reliability of microsatellite markers and linkage analysis were investigated in 10 members of 2 families with familial retinoblastoma. RESULTS Our results showed that heterozygosity rates for the three markers D13S153, D13S156 and D13S128 were 74, 70 and 78%, respectively. On the other hand, 2 and 36 out of 120 people were homozygote and heterozygous for all loci, respectively. CONCLUSION Given the heterozygosity rates, it may be concluded that all microsatellite markers D13S153, D13S156 and D13S128 are informative and have a high rate of heterozygosity and sensitivity. Therefore, tracing the unknown RB1 mutated alleles using linkage analysis in Iranian family with familial retinoblastoma could be recommended by means of these three microsatellite markers.
Collapse
Affiliation(s)
- Saman Mohamad Zahery
- Reproductive Biotechnology Research Center, Avicenna Research Institute, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran,Monoclonal Antibody Research Center, Avicenna Research Institute, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran,These authors equally contributed to this work
| | - Kioomars Saliminejad
- Reproductive Biotechnology Research Center, Avicenna Research Institute, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran,These authors equally contributed to this work
| | | | - Ali Ahani
- Reproductive Biotechnology Research Center, Avicenna Research Institute, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran,Corresponding author: Ali Ahani, Ph.D., Reproductive Biotechnology Research Center, Avicenna Research Institute, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran. Tel: +98 21 22432020. Fax: +98 21 22432021. E-mail:
| |
Collapse
|
35
|
Leal-Leal CA, Dilliz-Nava H, Flores-Rojo M, Robles-Castro J. First contact physicians and retinoblastoma in Mexico. Pediatr Blood Cancer 2011; 57:1109-12. [PMID: 21681936 DOI: 10.1002/pbc.23227] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Accepted: 05/16/2011] [Indexed: 11/12/2022]
Abstract
BACKGROUND Early detection and timely referral are keys to improve survival in patients with retinoblastoma (Rb). In México, one of the main obstacles for an early diagnosis is the lack of knowledge of the disease. The objective of this study was to evaluate Rb comprehension in students in their last year of medical school. PROCEDURE A questionnaire was completed by 791 students from 12 universities. Descriptive statistics from the population were obtained and every answer to each question was analyzed. RESULTS Only 3.3% of the students got a proficiency grade. Less than 50% diagnosed Rb when an image was shown. CONCLUSIONS The students evaluated do not have the knowledge to detect the disease. It is necessary to develop continuous educational programs for first contact physicians.
Collapse
|
36
|
Chantada GL. Retinoblastoma: Lessons and challenges from developing countries. Ellsworth Lecture 2011. Ophthalmic Genet 2011; 32:196-203. [PMID: 21770696 DOI: 10.3109/13816810.2011.592173] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
37
|
Arora RS, Pizer B, Eden T. Understanding refusal and abandonment in the treatment of childhood cancer. Indian Pediatr 2011; 47:1005-10. [PMID: 21220796 DOI: 10.1007/s13312-010-0172-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Treatment refusal and abandonment is the principal cause of therapy failure in children with cancer in the developing world. A complex interplay of biological, socio-economic and treatment-related factors underlies this problem. Interventions are likely to succeed when they try and address all of these issues simultaneously, as exemplified by the success of twinning programs linking resource-rich and resource-limited countries. Hitherto, there has been no systematic attempt to understand and address this problem in India. Based on the knowledge gained from research in other parts of the developing world, we offer suggestions for dealing with this problem.
Collapse
Affiliation(s)
- R S Arora
- Cancer Research UK Paediatric and Familial Cancer Research Group, University of Manchester, Manchester, UK.
| | | | | |
Collapse
|
38
|
Ali MJ, Honavar SG, Reddy VAP. Orbital retinoblastoma: Present status and future challenges - A review. Saudi J Ophthalmol 2011; 25:159-67. [PMID: 23960917 PMCID: PMC3729383 DOI: 10.1016/j.sjopt.2010.10.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Accepted: 10/06/2010] [Indexed: 10/19/2022] Open
Abstract
Orbital retinoblastoma is a catastrophic event traditionally carrying a dismal prognosis. Although its incidence is less in the developed countries it continues to be one of the major diagnosis at presentation in the developing world. Orbital retinoblastoma encompasses a wide range of distinct clinical entities with varying tumor load. There are no standard treatment protocols as of now but the current preferred management is multimodal with a combination of initial high-dose chemotherapy, surgery, external beam radiotherapy and prolonged chemotherapy for twelve cycles. In spite of progress on all fronts including surgical, medical, diagnostic, genetic and rehabilitative with improving survival rates, however, lack of access to medical facilities, lack of education about the need for early medical attention and cultural resistance to enucleation continue to contribute to an epidemic of extra ocular disease at diagnosis in the developing world. This review introduces the various terminologies used in the spectrum of orbital retinoblastoma, discusses in details the clinical aspects and management protocols, current status and the future directions.
Collapse
Affiliation(s)
- Mohammad J Ali
- Ocular Oncology Service, L.V. Prasad Eye Institute, Road No. 2, Banjara Hills, Hyderabad 500034, India
| | | | | |
Collapse
|
39
|
Chantada GL, Qaddoumi I, Canturk S, Khetan V, Ma Z, Kimani K, Yeniad B, Sultan I, Sitorus RS, Tacyildiz N, Abramson DH. Strategies to manage retinoblastoma in developing countries. Pediatr Blood Cancer 2011; 56:341-8. [PMID: 21225909 DOI: 10.1002/pbc.22843] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Accepted: 08/30/2010] [Indexed: 11/06/2022]
Abstract
Survival of retinoblastoma is >90% in developed countries but there are significant differences with developing countries in stage at presentation, available treatment options, family compliance, and survival. In low-income countries (LICs), children present with advanced disease, and the reasons are socioeconomic and cultural. In middle-income countries (MICs), survival rates are better (>70%), but there is a high prevalence of microscopically disseminated extraocular disease. Programs for eye preservation have been developed, but toxicity-related mortality is higher. Although effective treatment of microscopically extraocular disease improved the outcome, worldwide survival will be increased only by earlier diagnosis and better treatment adherence.
Collapse
|
40
|
Chantada GL, Fandiño AC, Guitter MR, Raslawski EC, Dominguez JL, Manzitti J, de Dávila MTG, Zubizarreta P, Scopinaro M. Results of a prospective study for the treatment of unilateral retinoblastoma. Pediatr Blood Cancer 2010; 55:60-6. [PMID: 20486172 DOI: 10.1002/pbc.22503] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Few prospective studies about the management of unilateral retinoblastoma with pathology risk factors (PRFs) have been published. METHODS Patients (n = 114) were divided into four groups: Group 1 (initial chemoreduction) (n = 17). Groups 2 and 3, included patients initially enucleated with no, or lower risk PRFs: (n = 65) and with higher risk PRFs (n = 30), respectively. The later included postlaminar optic nerve involvement (PLONI) (n = 23), tumor at resection margin of optic nerve (n = 5) or isolated scleral invasion (n = 2). Group 3 received adjuvant chemotherapy including a total eight cycles of carboplatin and etoposide, alternating with cyclophosphamide, idarubicin, and vincristine. Orbital radiotherapy (45 Gy) was given to patients with invasion to the resection margin. Group 4 included patients with metastatic disease (n = 2). They were given neoadjuvant therapy followed by surgery and high-dose chemotherapy and autologous stem cell rescue. RESULTS Five-year event-free survival is 0.94 (1 for Group 1, 0.94 for Group 2, 0.96 for Group 3, and 0 for Group 4). Events included. Group 2: Systemic relapse (n = 2) and combined orbital and CNS relapse (n = 1). Relapsing patients had PLONI (n = 2) and isolated focal choroidal invasion (n = 1). Group 3: CNS relapse (n = 1) in a patient with tumor at the resection margin of optic nerve. Group 4: CNS relapse (n = 2). Only one relapsed patient survived. Eight of 17 eyes treated conservatively were preserved. CONCLUSIONS The survival of patients with unilateral retinoblastoma was excellent and 60% were spared from adjuvant treatment. Our intensive regimen was likely to be effective for prevention of metastasis in patients with higher risk PRFs.
Collapse
|
41
|
Current World Literature. Curr Opin Ophthalmol 2010; 21:239-46. [DOI: 10.1097/icu.0b013e32833983a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
42
|
Hazin R, Qaddoumi I. Teleoncology: current and future applications for improving cancer care globally. Lancet Oncol 2010; 11:204-10. [PMID: 20152772 DOI: 10.1016/s1470-2045(09)70288-8] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Access to quality cancer care is often unavailable in low-income and middle-income countries, and also in rural or remote areas of high-income countries. Teleoncology-oncology applications of medical telecommunications, including pathology, radiology, and other related disciplines-has the potential to enhance access to and quality of clinical cancer care, and to improve education and training. Implementation of teleoncology in the developing world requires an approach tailored to priorities, resources, and needs. Teleoncology can best achieve its proposed goals through consistent and long-term application. We review teleoncology initiatives that have the potential to decrease cancer-care inequality between resource-poor and resource-rich institutions and offer guidelines for the development of teleoncology programmes in low-income and middle-income countries.
Collapse
Affiliation(s)
- Ribhi Hazin
- Faculty of Arts and Sciences, Harvard University, Cambridge, MA, USA
| | | |
Collapse
|