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Nishath T, Stacey AW, Steinberg D, Foster A, Bowman R, Essuman V, Fabian ID. Retinoblastoma survival and enucleation outcomes in 41 countries from the African continent. Br J Ophthalmol 2024:bjo-2023-324746. [PMID: 39122353 DOI: 10.1136/bjo-2023-324746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 06/28/2024] [Indexed: 08/12/2024]
Abstract
BACKGROUND Retinoblastoma is the most common intraocular malignancy in childhood. Despite one-third of cases occurring in Africa, little is known of the outcomes on the continent. This study aims to explore survival and globe salvage outcomes and identify their risk factors across a large cohort of patients from the African continent. METHODS A 3-year prospective, observational study was conducted. Kaplan-Meier survival analysis was used to investigate the risk of globe loss and death from retinoblastoma in Africa. Cox regression was used to identify risk factors associated with these outcomes. RESULTS A total of 958 patients from 41 African countries and 66 participating centres were enrolled in the study. The survival rate was 78.2% at 1 year and 66.2% at 3 years after diagnosis. Cox regression showed a higher risk of death with the most advanced clinical stage (cT4, HR=6.29 vs cT2, p<0.001). The risk of losing at least one eye after diagnosis was 50% within 4 months and 72.6% within 3 years. Higher risk of enucleation was associated with a higher clinical stage compared with cT1 (cT3, HR=4.11, p=0.001; cT4, HR=3.77, p=0.005). CONCLUSION Nearly one in every four children diagnosed with retinoblastoma in African participating centres succumb to retinoblastoma within 1 year. There is also high morbidity associated with the diagnosis as a large majority of patients require eye removal surgery. The outcome of disease in children with retinoblastoma in Africa is poor compared with other continents and requires prompt intervention by increasing efforts to improve survival and eye salvage outcomes.
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Affiliation(s)
- Thamanna Nishath
- University of Washington School of Medicine, Seattle, Washington, USA
| | - Andrew W Stacey
- Department of Ophthalmology, University of Washington, Seattle, Washington, USA
| | - David Steinberg
- Department of Statistics and Operations Research, School of Mathematical Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Allen Foster
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Richard Bowman
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
- Ophthalmology Department, Great Ormond Street Children's Hospital, London, UK
| | | | - Ido Didi Fabian
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
- Goldschleger Eye Institute, Sheba Medical Center, Tel Hashomer, Tel-Aviv University, Tel-Aviv, Israel
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2
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Ribeiro KB, Veiga LHS, Carvalho Filho NP, Morton LM, Kleinerman RA, Antoneli CBG. Overall survival and cause-specific mortality in a hospital-based cohort of retinoblastoma patients in São Paulo, Brazil. Int J Cancer 2024. [PMID: 39138799 DOI: 10.1002/ijc.35127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 07/09/2024] [Accepted: 07/12/2024] [Indexed: 08/15/2024]
Abstract
Studies are lacking on long-term effects among retinoblastoma patients in low- and middle-income countries. Therefore, we examined cause-specific mortality in a retrospective cohort of retinoblastoma patients treated at Antonio Candido de Camargo Cancer Center (ACCCC), São Paulo, Brazil from 1986 to 2003 and followed up through December 31, 2018. Vital status and cause of death were ascertained from medical records and multiple national databases. We estimated overall and cause-specific survival using the Kaplan-Meier survival method, and estimated standardized mortality ratios (SMRs) and absolute excess risk (AER) of death. This cohort study included 465 retinoblastoma patients (42% hereditary, 58% nonhereditary), with most (77%) patients diagnosed at advanced stages (IV or V). Over an 11-year average follow-up, 80 deaths occurred: 70% due to retinoblastoma, 22% due to subsequent malignant neoplasms (SMNs) and 5% to non-cancer causes. The overall 5-year survival rate was 88% consistent across hereditary and nonhereditary patients (p = .67). Hereditary retinoblastoma patients faced an 86-fold higher risk of SMN-related death compared to the general population (N = 16, SMR = 86.1, 95% CI 52.7-140.5), corresponding to 42.4 excess deaths per 10,000 person-years. This risk remained consistent for those treated with radiotherapy and chemotherapy (N = 10, SMR = 90.3, 95% CI 48.6-167.8) and chemotherapy alone (N = 6, SMR = 80.0, 95% CI 35.9-177.9). Nonhereditary patients had only two SMN-related deaths (SMR = 7.2, 95% CI 1.8-28.7). There was no excess risk of non-cancer-related deaths in either retinoblastoma form. Findings from this cohort with a high proportion of advanced-stage patients and extensive chemotherapy use may help guide policy and healthcare planning, emphasizing the need to enhance early diagnosis and treatment access in less developed countries.
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Affiliation(s)
- Karina B Ribeiro
- Department of Collective Health, Santa Casa de São Paulo Medical School, São Paulo, Brazil
| | - Lene H S Veiga
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
| | | | - Lindsay M Morton
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
| | - Ruth A Kleinerman
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland, USA
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3
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Vempuluru VS, Maniar A, Kaliki S. Global retinoblastoma studies: A review. Clin Exp Ophthalmol 2024; 52:334-354. [PMID: 38263682 DOI: 10.1111/ceo.14357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 01/25/2024]
Abstract
In the current era of global health awareness for retinoblastoma (RB), the challenge that lies ahead of us is providing optimal care for children affected with RB in underdeveloped nations. The understanding of similarities and disparities between various nations across the world aids in achieving comparable outcomes. With dissolving geographic barriers and evolving collaboration, global collaborative studies on RB are becoming increasingly common. They provide real-world, robust evidence on several aspects of RB. This review discusses insights gained from global RB studies regarding the demographics, certain aspects of etiopathogenesis and epidemiology, international travel burden, disparities in clinical presentations based on national income levels, management protocols, pathology, treatment outcomes, and the effect of COVID-19 on RB care across the world. These insights are likely to impact individual practice as well as inform policy reforms.
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Affiliation(s)
- Vijitha S Vempuluru
- The Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, India
| | - Arpita Maniar
- Duke Eye Center, Duke University, Durham, North Carolina, USA
| | - Swathi Kaliki
- The Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, India
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Tanveer S, Zafar F, Bibi H, Haroon H, Ahmad O, Iqbal MS, Zakir Z, Khilji M, Tanveer S, Hassan RE. Advancements in Retinoblastoma Treatment: Unraveling the Potential of Intravitreal Chemotherapy. Cureus 2024; 16:e53012. [PMID: 38410326 PMCID: PMC10895558 DOI: 10.7759/cureus.53012] [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: 01/26/2024] [Indexed: 02/28/2024] Open
Abstract
Retinoblastoma necessitates urgent attention due to its potential fatality if untreated. Multiple treatment options are available and should be employed according to size, location, and the extent of dissemination. This review emphasizes the need for increased awareness, advanced diagnostic tools, and innovative treatment approaches, especially intravitreal chemotherapy (IVitC) to address the diverse manifestations and aggressive nature of retinoblastoma. Timely diagnosis and commitment to treatment are pivotal, as delays and reluctance to undergo enucleation contribute to unfavorable outcomes. The evolving treatment landscape, spanning from traditional interventions to modern targeted therapies such as intravitreal melphalan, holds promise for improved outcomes. While the intravitreal approach presents challenges, ongoing research aims to establish its definitive role in retinoblastoma treatment. In the treatment of retinoblastoma, IVitC raises considerations about side effects. The risk of tumor spread beyond the eye is rare, emphasising the potential of IVitC in carefully selected cases. Intravitreal injections exhibit fewer local adverse effects compared to intra-arterial chemotherapy, with careful measures reducing significant ocular complications. The evaluation of ocular toxicity, particularly with melphalan, underscores the importance of a nuanced approach to achieve the right balance between therapeutic efficacy and ocular safety. This comprehensive analysis of studies on IVitC and its ocular and systemic complications provides valuable insights for enhanced patient care. The review concludes with a focus on balancing safety and efficacy in local chemotherapeutic drugs, highlighting the need for thoughtful measures and continued research to optimise treatment modalities globally.
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Affiliation(s)
- Shafiq Tanveer
- Ophthalmology, Khyber Teaching Hospital MTI, Peshawar, PAK
| | - Fahad Zafar
- Ophthalmology, Khyber Teaching Hospital MTI, Peshawar, PAK
| | - Hafsa Bibi
- Ophthalmology, Khyber Teaching Hospital MTI, Peshawar, PAK
| | - Hamza Haroon
- Surgery, Ayub Teaching Hospital, Abbottabad, PAK
| | - Obaid Ahmad
- Ophthalmology, Hayatabad Medical Complex MTI, Peshawar, PAK
| | | | - Zarafshan Zakir
- Internal Medicine, Khyber Teaching Hospital MTI, Peshawar, PAK
| | - Maryum Khilji
- Ophthalmology, Khyber Teaching Hospital MTI, Peshawar, PAK
| | | | - Rao E Hassan
- Orthopaedics and Trauma, Khyber Teaching Hospital MTI, Peshawar, PAK
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Lukamba RM, Budiongo AN, Monga BB, Yao A, Bey P, Chenge GB, Desjardins L, Doz F, Mwembo AT, Kabesha TA, Luboya ON. Treatment adherence in retinoblastoma: A retro-prospective cohort study in Ivory Coast and the Democratic Republic of Congo. Cancer Rep (Hoboken) 2023; 7:e1949. [PMID: 38146612 PMCID: PMC10849925 DOI: 10.1002/cnr2.1949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/11/2023] [Accepted: 11/12/2023] [Indexed: 12/27/2023] Open
Abstract
BACKGROUND In high-income countries, retinoblastoma is curable in more than 95% of cases, whereas in low-income countries, mortality remains high, especially when the diagnosis is made late or the treatment is discontinued. AIMS To determine the factors associated with adherence to the treatment of retinoblastoma in the Ivory Coast and the Democratic Republic of Congo (DRC). METHODS AND RESULTS A retro-prospective cohort study was carried out. Data were collected from patient folders and follow-up records of parents. RESULTS A total of 175 children with retinoblastoma were registered from January 2013 to December 2015. Seventy-six children (43%) were 5 years old and above. Care costs were covered by families in 86.9% of cases. Chemotherapy refusal was recorded in 39 cases (22.3%), and enucleation refusal was recorded in 79 cases (45.1%). After 36 months of follow-up, we recorded 16.6% deaths, 27.4% treatment dropouts, and 18.3% loss to follow-up after treatment. The commonest cause for enucleation refusal was fear of infirmity, while chemotherapy refusal and absconding treatment were due to financial constraints. CONCLUSION Poor adherence to retinoblastoma management was due to financial constraints, and a lack of knowledge of the disease and its treatment. Family psychosocial support is needed to improve this condition.
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Affiliation(s)
- Robert Mbuli Lukamba
- Department of Pediatrics (Pediatric Oncology Unit)University of LubumbashiLubumbashiDemocratic Republic of the Congo (DRC)
| | - Aléine Nzazi Budiongo
- Department of Pediatrics (Pediatric Oncology Unit)University of KinshasaKinshasaDemocratic Republic of the Congo (DRC)
| | - Ben Bondo Monga
- Faculty of Medicine and School of Public HealthUniversity of LubumbashiLubumbashiDemocratic Republic of the Congo (DRC)
| | - Atteby Yao
- Pediatric Oncology UnitUniversity Teaching Hospital of TreichvilleAbidjanIvory Coast
| | - Pierre Bey
- Advisor to the President of Institut CurieUniversity of Lorraine and AMCCParisFrance
| | | | | | - François Doz
- SIREDO Oncology Center (Care, Innovation, Research in Child Oncology, Adolescent and Young Adult) Institut Curie and University Paris CitéParisFrance
| | - Albert Tambwe Mwembo
- Faculty of Medicine and School of Public HealthUniversity of LubumbashiLubumbashiDemocratic Republic of the Congo (DRC)
| | | | - Oscar Numbi Luboya
- Department of Pediatrics and School of Public HealthUniversity of LubumbashiLubumbashiDemocratic Republic of the Congo (DRC)
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Bilbeisi T, Almasry R, Obeidat M, Mohammad M, Jaradat I, Halalsheh H, Alni’mat A, Ahmad DK, Alsaket N, Mehyar M, Al-Nawaiseh I, Yousef YA. Causes of death and survival analysis for patients with retinoblastoma in Jordan. Front Med (Lausanne) 2023; 10:1244308. [PMID: 37731722 PMCID: PMC10507250 DOI: 10.3389/fmed.2023.1244308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/18/2023] [Indexed: 09/22/2023] Open
Abstract
Purpose To analyze causes and prognostic factors for death among Retinoblastoma (Rb) patients treated at a single specialized tertiary cancer center in Jordan. Methods We reviewed the mortality causes for all Rb patients who have been treated at the King Hussein Cancer Center between 2003 and 2019 and were followed for at least 3 years after diagnosis. The main outcome measures included demographics, laterality, tumor stage, treatment modalities, metastasis, survival, and causes of death. Results Twenty-four (5%) of the 478 patients died from retinoblastoma and 5-year survival was 94%. The mean age at diagnosis was 15 months (median, 18 months; range, 4-38 months); eight (33%) received diagnoses within the first year of life. Eleven (46%) were boys, 16 (67%) had bilateral disease, and 3 (13%) had a positive family history. The stage for the worst eye was C for 1 (4%) patient, D in 6 (25%) patients, and E (T3) in 15 (63%) patients. Two patients had extraocular Rb at diagnosis, and four of the patients who had intraocular Rb at diagnosis refused treatment and then came back with extraocular Rb. In total, extraocular disease was encountered in six eyes (six patients). After a 120-month median follow-up period, 24 patients (5%) died of second neoplasms (n = 3) or metastases (n = 21). Significant predictive factors for metastasis and death included advanced IIRC tumor stage (p < 0.0001), the presence of high-risk pathological features in the enucleated eyes (p = 0.013), parental refusal of the recommended primary treatment plan (p < 0.0001), and extraocular extension (p < 0.0001). Conclusion The 5-year survival rates of Rb patients in Jordan are as high as those in high-income countries. However, 5% are still dying from metastatic disease, prompting the need for awareness campaigns to educate the public about the high cure rates and to prevent treatment abandonment.
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Affiliation(s)
- Tharwa Bilbeisi
- FedEx Institute of Technology, University of Memphis, Memphis, TN, United States
- St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Razaq Almasry
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Mariam Obeidat
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Mona Mohammad
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Imad Jaradat
- Department of Radiation Oncology, King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Hadeel Halalsheh
- Department of Pediatrics Oncology, King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Ayat Alni’mat
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Danah Kanj Ahmad
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Nour Alsaket
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Mustafa Mehyar
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Ibrahim Al-Nawaiseh
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
| | - Yacoub A. Yousef
- Department of Surgery (Ophthalmology), King Hussein Cancer Center (KHCC), Amman, Jordan
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7
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Byroju VV, Nadukkandy AS, Cordani M, Kumar LD. Retinoblastoma: present scenario and future challenges. Cell Commun Signal 2023; 21:226. [PMID: 37667345 PMCID: PMC10478474 DOI: 10.1186/s12964-023-01223-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/12/2023] [Indexed: 09/06/2023] Open
Abstract
With an average incidence of 1 in every 18,000 live births, retinoblastoma is a rare type of intraocular tumour found to affect patients during their early childhood. It is curable if diagnosed at earlier stages but can become life-threateningly malignant if not treated timely. With no racial or gender predisposition, or even environmental factors known to have been involved in the incidence of the disease, retinoblastoma is often considered a clinical success story in pediatric oncology. The survival rate in highly developed countries is higher than 95% and they have achieved this because of the advancement in the development of diagnostics and treatment techniques. This includes developing the already existing techniques like chemotherapy and embarking on new strategies like enucleation, thermotherapy, cryotherapy, etc. Early diagnosis, studies on the etiopathogenesis and genetics of the disease are the need of the hour for improving the survival rates. According to the Knudson hypothesis, also known as the two hit hypothesis, two hits on the retinoblastoma susceptibility (RB) gene is often considered as the initiating event in the development of the disease. Studies on the molecular basis of the disease have also led to deciphering the downstream events and thus in the discovery of biomarkers and related targeted therapies. Furthermore, improvements in molecular biology techniques enhanced the development of efficient methods for early diagnosis, genetic counseling, and prevention of the disease. In this review, we discuss the genetic and molecular features of retinoblastoma with a special emphasis on the mutation leading to the dysregulation of key signaling pathways involved in cell proliferation, DNA repair, and cellular plasticity. Also, we describe the classification, clinical and epidemiological relevance of the disease, with an emphasis on both the traditional and innovative treatments to tackle retinoblastoma. Video Abstract.
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Affiliation(s)
- Vishnu Vardhan Byroju
- Department of Biochemistry, American International Medical University, Gros Islet, St. Lucia, USA
| | | | - Marco Cordani
- Department of Biochemistry and Molecular Biology, Complutense University of Madrid, and Instituto de Investigaciones Sanitarias San Carlos (IdISSC), Madrid, Spain.
| | - Lekha Dinesh Kumar
- CSIR-Centre for Cellular and Molecular Biology, Habsiguda, Uppal Road, Hyderabad, India.
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Kakarala CL, Raval VR, Mallu A, Rao R, Gavara S, Reddy VAP, Mishra DK, Jakati S, Kaliki S. Metastatic retinoblastoma at presentation: Clinical presentation, treatment, and outcomes. Oman J Ophthalmol 2023; 16:524-528. [PMID: 38059077 PMCID: PMC10697251 DOI: 10.4103/ojo.ojo_176_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/08/2023] [Accepted: 07/22/2023] [Indexed: 12/08/2023] Open
Abstract
The aim of this study was to retrospectively determine clinical features, treatment outcomes, and overall survival in four patients with metastatic retinoblastoma at presentation. The mean age at diagnosis was 63 months (range: 24-108 months). Three patients had overt orbital disease of at least one eye and one patient had microscopic orbital disease with scleral infiltration on histopathology. Metastatic sites included regional lymph nodes (RLN) (n = 4), bone marrow (BM) (n = 2), and cerebrospinal fluid (CSF) (n = 1). The most common sites of RLN were ipsilateral preauricular nodes (two patients) and contralateral parotid gland involvement (one patient). The treatment administered included primary enucleation (n = 1), high-dose intravenous chemotherapy (n = 4), secondary enucleation (n = 2), orbital external beam radiotherapy (n = 3), and intrathecal chemotherapy (n = 1). High-risk features included massive choroidal and microscopic scleral infiltration in the eye that underwent primary enucleation. At a mean follow-up of 33 months (range, 4-68 months), one patient with CSF involvement deceased in 4 months. The remaining three patients were alive and disease-free at the last mean follow-up period of 43 months (range, 18-68 months). The results of our study showed that RLN and BM metastasis respond well to treatment while CSF metastasis is associated with poor prognosis.
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Affiliation(s)
- Chandra L. Kakarala
- Department of Ophthalmology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
| | - Vishal Rameshkumar Raval
- The Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Akhila Mallu
- The Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | | | - Suneetha Gavara
- The Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Vijay Anand P. Reddy
- The Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Dilip K. Mishra
- Department of Ophthalmic Pathology Laboratory, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Saumya Jakati
- Department of Ophthalmic Pathology Laboratory, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Swathi Kaliki
- The Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, Telangana, India
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Sherief ST, Wu F, O'Banion J, Teshome T, Dimaras H. Health Services Needs Assessment for Retinoblastoma in Ethiopia. JCO Glob Oncol 2023; 9:e2200445. [PMID: 37348044 PMCID: PMC10497293 DOI: 10.1200/go.22.00445] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/10/2023] [Accepted: 04/06/2023] [Indexed: 06/24/2023] Open
Abstract
PURPOSE The aim of this study was to document the available resources and needs for the detection, diagnosis, and treatment of retinoblastoma (RB) in Ethiopia. METHODS A health services needs assessment focused on RB care in Ethiopia was conducted. Information was obtained through a web-based survey and field visits. Facilities offering RB service delivery were categorized into three tiers, on the basis of the ability to detect (tier 1) and manage simple (tier 2) or complex (tier 3) patients with RB. Descriptive statistics were performed to quantify human and material resources available at each facility. RESULTS The web survey received 29 responses from ophthalmologists at 19 health care facilities. Of the 19 units surveyed, seven (36.8%) had an ophthalmologist dedicated to RB treatment, classifying them as either a tier 2 or 3 facility. All tier 3 facilities had an affiliated health facility offering access to off-site pediatric oncology and pathology services. Of the focal therapies offered at tier 3 facilities, none included local chemotherapy or brachytherapy. Enucleation was offered at all tier 2 facilities, but availability of orbital implants and ocular prostheses was variable. None of the health facilities offered genetics services. CONCLUSION This study demonstrated that the human and material resources needed for RB care in Ethiopia are constrained. Tier 3 RB facilities are rare and concentrated in urban areas, which could make it difficult for many patients to access. With focused capacity-building efforts, it is possible to increase the efficiency of RB therapy.
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Affiliation(s)
- Sadik Taju Sherief
- Department of Ophthalmology, Addis Ababa University, Addis Ababa, Ethiopia
- Department of Ophthalmology and Vision Sciences, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Fran Wu
- Al-Qabas International Eye Center, Tripoli, Libya
| | | | - Tiliksew Teshome
- Department of Ophthalmology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Helen Dimaras
- Department of Ophthalmology and Vision Sciences, The Hospital for Sick Children, University of Toronto, Toronto, Canada
- Child Health Evaluative Sciences Program, Centre for Global Child Health, SickKids Research Institute, Toronto, Canada
- Division of Clinical Public Health, Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
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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.
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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
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11
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Yousef YA, Mohammad M, Al-Nawaiseh I, Mahafza H, Halalsheh H, Mehyar M, AlJabari R, Al-Rawashdeh K, Jaradat I, Sultan I, Al-Hussaini M. Retinoblastoma and uveal melanoma in Jordan: incidence, demographics, and survival (2011-2020). Ophthalmic Genet 2023; 44:119-126. [PMID: 35848346 DOI: 10.1080/13816810.2022.2090008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
PURPOSE We present an epidemiologic analysis of retinoblastoma (RB) and uveal melanoma (UM) in Jordan to aid national strategies for improved ocular cancer surveillance and control. METHODS A retrospective cohort of all Jordanian patients with RB and UM diagnosed over 10 years (2011-2020). Outcome measures included incidence, demographics, and outcomes. RESULTS Retinoblastoma (n = 124) was more common than UM (n = 82); there was no sex predilection for either group. The median age at diagnosis of RB was 15 months(Six and 28 months for bilateral and unilateral cases, respectively), and the mean age-adjusted incidence was 8.2 cases per-million-children per year for children aged five years or less(one per 15,620 newborn per year). Fifty-one(41%) had bilateral disease, and 18(15%) had familial disease. Ninety-six(55%) eyes were group D or E(78% were T3/T4), and the five-year survival rate was 96%.For UM, the median age at diagnosis was 45 years with an incidence of 1.39 new cases per year per one million population. All(100%) had nonfamilial unilateral disease. Seventy-three(89%) had the tumor in the choroid, and 48(58%) had an advanced tumor that had invaded the sclera or the orbit (T3/T4) tumor. Sixty-two(76%) were treated by I-125 radioactive plaque, with globe salvage in 59(95%); the five-year survival rate was 85%. CONCLUSION In Jordan, RB is more common and has better survival than UM. RB in Jordan and Western countries is equal in terms of incidence, globe salvage, and survival. UM is less common, with lower age at diagnosis (that was associated with better survival) in Jordan than in Western countries.
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Affiliation(s)
- Yacoub A Yousef
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Mona Mohammad
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Ibrahim Al-Nawaiseh
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Hala Mahafza
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Hadeel Halalsheh
- Department of Pediatrics Oncology, King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Mustafa Mehyar
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Reem AlJabari
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Khaleel Al-Rawashdeh
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Imad Jaradat
- Department of Radiation Oncology, King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Iyad Sultan
- Department of Pediatrics Oncology, King Hussein Cancer Centre (KHCC), Amman, Jordan
| | - Maysa Al-Hussaini
- Department of Pathology, and Laboratory Medicine, King Hussein Cancer Centre (KHCC), Amman, Jordan
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12
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Naseripour M, Sedaghat A, Mirshahi R, Abdolalizadeh P, Koushki A, Faranoush M, Ghorbani M, Kashkouli MB, Sadeghipour A, Chaibakhsh S, Mehrvar A. Targeted chemotherapy in retinoblastoma: A step forward from patient survival to globe survival. Eur J Ophthalmol 2023; 33:574-586. [PMID: 35414292 DOI: 10.1177/11206721221093018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND/ OBJECTIVES Despite being the most common intraocular malignancy in childhood, there is a substantial disparity between developing and developed countries in terms of patient and globe survival in retinoblastoma (Rb). The current study intends to determine patient and globe survival before and after the introduction of the new targeted treatment modalities in a developing country. METHODS Medical records of 350 patients (516 eyes) with retinoblastoma referred to a tertiary referral center for Rb in Tehran, Iran, were reviewed. In order to compare patient and globe survival before and after the availability of the new treatment modalities, including intra-arterial and intravitreal chemotherapy, the patients were divided into group 1 (2001-2007) and group 2 (2008-2018) based on the calendar period of diagnosis. RESULTS Two-hundred-twenty-three eyes of 149 patients and 293 eyes of 201 patients were categorized into groups 1 and 2, respectively. The 5-year patient survival was 97% across the current survey, and the overall survival rate was 96% in group 1 and 99% in group 2 (P = 0.08). Overall, 50% of eyes with retinoblastoma underwent enucleation, which was the primary in 63% (116/184) of the unilateral and 30% (99/322) of the bilateral cases. Primary enucleation was significantly lower in group 2 (35%) in contrast to group 1 (50%) (P < 0.001). In addition, globe survival improved significantly in the International Classification of Retinoblastoma Groups D (17% in group 1 vs. 66% in group 2, P < 0.001) and E (1% in group 1 vs. 23% in group 2 P < 0.001) during the two timelines. In enucleated eyes, despite the increased rate of prelaminar involvement in group 2 (13% vs. 2% in group 1, P = 0.003), the rate of high-risk histopathologic findings was similar between the two groups. CONCLUSION Similar to developed countries, the application of new targeted treatment modalities, including intra-arterial and intravitreal chemotherapy, has been associated with significantly improved globe survival in Rb patients. However, it should be noted that even with the availability of these novel treatment options, the decision for on-time enucleation should not be deferred.
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Affiliation(s)
- Masood Naseripour
- Eye Research Center, The Five Senses Health Institute, 48492Rassoul Akram Hospital, Iran University, of Medical Sciences, Tehran, Iran
| | - Ahad Sedaghat
- Eye Research Center, The Five Senses Health Institute, 48492Rassoul Akram Hospital, Iran University, of Medical Sciences, Tehran, Iran
| | - Reza Mirshahi
- Eye Research Center, The Five Senses Health Institute, 48492Rassoul Akram Hospital, Iran University, of Medical Sciences, Tehran, Iran
| | - Parya Abdolalizadeh
- Eye Research Center, The Five Senses Health Institute, 48492Rassoul Akram Hospital, Iran University, of Medical Sciences, Tehran, Iran
| | - Amin Koushki
- Eye Research Center, The Five Senses Health Institute, 48492Rassoul Akram Hospital, Iran University, of Medical Sciences, Tehran, Iran
| | - Mohammad Faranoush
- Pediatric growth and development research center, 440827Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ghorbani
- Division of vascular and endovascular neurosurgery, Firoozgar Hospital, 440827Iran University of Medical Sciences, Tehran, Iran
| | - Mohsen Bahmani Kashkouli
- Eye Research Center, The Five Senses Health Institute, 48492Rassoul Akram Hospital, Iran University, of Medical Sciences, Tehran, Iran
| | - Alireza Sadeghipour
- Department of Pathology, Oncopathology Research Center, 440827Iran University of Medical Sciences, Tehran, Iran
| | - Samira Chaibakhsh
- Eye Research Center, The Five Senses Health Institute, 48492Rassoul Akram Hospital, Iran University, of Medical Sciences, Tehran, Iran
| | - Azim Mehrvar
- MAHAK Hematology Oncology Research Center (MAHAK-HORC), MAHAK Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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13
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Naseripour M, Mirshahi R, Kasraei H, Sedaghat A, Azimi F. Spotlight on Targeted Chemotherapy in Retinoblastoma: Safety, Efficacy, and Patient Outcomes. Onco Targets Ther 2022; 15:1545-1561. [PMID: 36579184 PMCID: PMC9792108 DOI: 10.2147/ott.s370878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022] Open
Abstract
As the most common primary intraocular malignancy of childhood, retinoblastoma (RB) has had a complex journey in its management, following a course from enucleation as the first life-saving treatment to numerous globe-salvaging therapies during the last century. Currently, this potentially lethal disease has achieved high survival rates owing to multidisciplinary management and the introduction of neoadjuvant and multimodal chemotherapy. Therefore, the goal of treatment is shifting toward conserving the globe and vision as much as possible. Up until recently, many advanced cases of RB were enucleated primarily; however, targeted chemotherapy via the ophthalmic artery and management of intraocular seeding by local administration of chemotherapeutic agents have revolutionized the globe-conserving therapies. The added benefit of avoiding systemic complications of cytotoxic drugs resulted in these methods gaining popularity, and they are becoming a main part of care in many referral centers. Initially, there were some safety concerns regarding these approaches; however, increasing experience has shown that these modalities are relatively safe procedures and many complications can be averted by changing the choice of the drug and using some prophylactic measures. It is hoped that, in the near future, with advances in early diagnosis and patient-targeted molecular therapies, as well as gene-editing techniques, the patient's vision can be saved even in advanced RB.
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Affiliation(s)
- Masood Naseripour
- Eye Research Center, The Five Senses Health Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran,Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran,Correspondence: Masood Naseripour, Department of Ophthalmology, Iran University of Medical Sciences (IUMS), Rassoul Akram Hospital, Niayesh Ave, 14455-364, Tehran, Iran, Fax +98 21 66509162, Email
| | - Reza Mirshahi
- Eye Research Center, The Five Senses Health Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran,Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hengameh Kasraei
- Eye Research Center, The Five Senses Health Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Ahad Sedaghat
- Eye Research Center, The Five Senses Health Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Azimi
- Eye Research Center, The Five Senses Health Institute, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran
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14
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Diatewa B, Maneh N, Domingo A, Amouzou D, Gnansa K, Bawerima W, Ayikoue Y, Mewamba Wamba R. Le rétinoblastome au Centre Hospitalier Universitaire-Campus de Lomé, Togo, de 2014 à 2018. J Fr Ophtalmol 2022; 45:762-766. [DOI: 10.1016/j.jfo.2021.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 06/25/2021] [Accepted: 08/25/2021] [Indexed: 11/27/2022]
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15
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Bernard A, Xia SZ, Saleh S, Ndukwe T, Meyer J, Soloway E, Sintayehu M, Ramet BT, Tadegegne B, Nelson C, Demirci H. EyeScreen. OPHTHALMOLOGY SCIENCE 2022; 2:100158. [PMID: 36245758 PMCID: PMC9560653 DOI: 10.1016/j.xops.2022.100158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 11/29/2022]
Abstract
Purpose Early diagnosis and treatment of retinoblastoma are of paramount importance for a positive clinical outcome. The most common sign of retinoblastoma is leukocoria, or white pupil. Effective, easy-to-perform, community-based screening is needed to improve outcomes in lower-income regions. The EyeScreen (developed by Joshua Meyer from the University of Michigan) Android (Google LLC) smartphone application is an important step toward addressing this need. The purpose of this study was to examine the potential of the novel use of low-cost technologies—a cell phone application and machine learning—to identify leukocoria. Design A cell phone application was developed and refined with the feedback from on-site, single-population use in Ethiopia. Application performance was evaluated in this technology validation study. Participants One thousand four hundred fifty-seven participants were recruited from ophthalmology and pediatric clinics in Addis Ababa, Ethiopia. Methods Photographs obtained with inexpensive Android smartphones running the EyeScreen Application were used to train an ImageNet (ResNet) machine learning model and to measure the performance of the app. Eighty percent of the images were used in training the model, and 20% were reserved for testing. Main Outcome Measures Performance of the model was measured in terms of sensitivity, specificity, receiver operating characteristic (ROC) curve, and precision-recall curve. Results Analyses of the participant images resulted in the following at the participant level: sensitivity, 87%; specificity, 73%; area under the ROC curve, 0.93; and area under the precision-recall curve, 0.77. Conclusions EyeScreen has the potential to serve as an effective screening tool in the areas of the world most affected by delayed retinoblastoma diagnosis. The relatively high initial performance of the machine learning model with small training datasets in this early-phase study can serve as a proof of concept for future use of machine learning and artificial intelligence in ophthalmic applications.
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16
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Azimi F, Mirshahi R, Naseripour M. Review: New horizons in retinoblastoma treatment: an updated review article. Mol Vis 2022; 28:130-146. [PMID: 36034735 PMCID: PMC9352364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 07/09/2022] [Indexed: 10/25/2022] Open
Abstract
Retinoblastoma (Rb) is a rare childhood intraocular malignancy with an incidence rate of approximately 9000 children per year worldwide. The management of Rb is inherently complex and depends on several factors. The orders of priorities in the treatment of Rb are saving life, globe salvage and vision salvage. Rarity and the young age at diagnosis impede conducting randomized clinical trials (RCTs) for new therapeutic options, and therefore pre-RCTs studies are needed. This review provides an overview of advances in Rb treatment options, focusing on the emergence of new small molecules to treat Rb. Articles related to the management and treatments of Rb were searched in different databases. Several studies and animal models discussing recent advances in the treatment of Rb were included to have a better grasp of the biological mechanisms of Rb. Over the years, the principles of management and treatment of Rb have changed significantly. Innovations in targeted therapies and molecular biology have led to improved patient and ocular survival. However, there is still a need for further evaluation of the long-term effects of these new treatments.
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Affiliation(s)
- Fatemeh Azimi
- Eye Research Center, the Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Mirshahi
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Masood Naseripour
- Eye Research Center, the Five Senses Institute, Iran University of Medical Sciences, Tehran, Iran,Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran
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17
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Da Silva FN, Kora LX, Elongo T, El Kebir A, El Maaloum L, Bennani-Guebessi N, Allali B, El Kettani A, Karkouri M. Anatomo-Clinical Aspects of Retinoblastoma: A Series of 144 Cases. Cureus 2022; 14:e25422. [PMID: 35769683 PMCID: PMC9234544 DOI: 10.7759/cureus.25422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2022] [Indexed: 11/17/2022] Open
Abstract
Retinoblastoma (RB) is the most common intraocular primary malignancy for infants and young children. The tumor is bilateral in 40% of cases and unilateral in 60% of cases. The hereditary form is due to a germinal mutation in the RB1 tumor suppressor gene. In developed countries, patients treated for RB have excellent survival, but unfortunately in developing countries delays in diagnosis and lack of human and financial resources are responsible for deaths. We conducted a retrospective study of 144 cases of RB in order to evaluate the clinico-pathological aspect of RB for the national reference center of RB in Morocco. Our study highlighted the indispensable collaboration between the clinician and the pathologist. Besides the diagnostic confirmation, the anatomopathological study gives us information on histopronostic risk factors to guide the treatment.
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Affiliation(s)
| | - Lafia Xavier Kora
- Pediatric Ophthalmology, Ibn Rochd University Hospital Center, Casablanca, MAR
| | - Tania Elongo
- Pediatric Ophthalmology, Ibn Rochd University Hospital Center, Casablanca, MAR
| | - Asmaa El Kebir
- Anatomical Pathology, Ibn Rochd University Hospital Center, Casablanca, MAR
| | - Loubna El Maaloum
- Pediatric Ophthalmology, Ibn Rochd University Hospital Center, Casablanca, MAR
| | | | - Bouchra Allali
- Pediatric Ophthalmology, Ibn Rochd University Hospital Center, Casblanca, MAR
| | - Asmaa El Kettani
- Pediatric Ophthalmology, Ibn Rochd University Hospital Center, Casablanca, MAR
| | - Mehdi Karkouri
- Anatomical Pathology, Ibn Rochd University Hospital Center, Casablanca, MAR
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18
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Chen Y, Miao L, Lin H, Zhuo Z, He J. The role of m6A modification in pediatric cancer. Biochim Biophys Acta Rev Cancer 2022; 1877:188691. [PMID: 35122883 DOI: 10.1016/j.bbcan.2022.188691] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 01/25/2022] [Accepted: 01/28/2022] [Indexed: 02/07/2023]
Abstract
With the development of RNA modification research, the importance of N6-methyladenosine (m6A) in tumors cannot be ignored. m6A promotes the self-renewal of tumor stem cells and the proliferation of tumor cells. It affects post-transcriptional gene expression through epigenetic mechanisms, combining various factors to determine proteins' fate and altering the biological function. This modification process runs through the entire tumors, and genes affected by m6A modification may be the critical targets for cancers breakthroughs. Though generally less dangerous than adult cancer, pediatric cancer accounts for a significant proportion of child deaths. What is more alarming is that the occurrences of adult tumors are highly associated with the poor prognoses of pediatric tumors. Therefore, it is necessary to pay attention to the importance of pediatric cancer and discover new therapeutic targets, which will help improve the therapeutic effect and prognoses of the diseases. We collected and investigated m6A modification in pediatric cancers based on mRNA and non-coding RNA, finding that m6A factors were involved in glioma, hepatoblastoma, nephroblastoma, neuroblastoma, osteosarcoma, medulloblastoma, retinoblastoma, and acute lymphoblastic leukemia. Consequently, we summarized the relationships between the m6A factors and these pediatric cancers.
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Affiliation(s)
- Yongping Chen
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Lei Miao
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Huiran Lin
- Faculty of Medicine, Macau University of Science and Technology, Macau 999078, China
| | - Zhenjian Zhuo
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China; Laboratory Animal Center, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
| | - Jing He
- Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China.
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19
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Zhao J, Feng Z, Gallie BL. Natural History of Untreated Retinoblastoma. Cancers (Basel) 2021; 13:3646. [PMID: 34359552 PMCID: PMC8344972 DOI: 10.3390/cancers13153646] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 11/13/2022] Open
Abstract
Treatment abandonment is a leading cause of death in children with retinoblastoma worldwide. We studied children who abandoned treatment upfront at diagnosis to delineate the natural history of untreated retinoblastoma. Studied were children who received no treatment, diagnosed between 2007 and 2017 at 29 Chinese centers. Data were retrospectively collected from medical chart reviews and interviews with each patient's family. During the study period, 44 children received no treatment after diagnosis of retinoblastoma. Clinical or radiologic evidence of orbital extension was available for 25 children, and radiologic evidence of systemic metastasis was available for 12 children. Median times from diagnosis of intraocular tumor to orbital disease was 13.7 months, orbital disease to metastasis was 2.6 months, and metastasis to death was 2.0 months. Children with brain metastasis had shorter survival than those with metastasis to other sites (median 1.0 vs. 3.1 months; p = 0.015). Overall, 36% of patients died within 12 months of diagnosis, 77% within 24 months, 95% within 36 months and 100% within 48 months. While multiple factors influence refusal of treatment, insights into the natural history of retinoblastoma derived from real-world evidence can inform clinicians and parents that retinoblastoma is life-threatening and encourage urgent treatment at diagnosis.
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Affiliation(s)
- Junyang Zhao
- Department of Ophthalmology, Chongqing Aier Children’s Eye Hospital, Chongqing 400020, China;
| | - Zhaoxun Feng
- Department of Ophthalmology, University of Ottawa, Ottawa, ON K1H 8M2, Canada;
| | - Brenda L. Gallie
- Department of Ophthalmology, Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
- Krembil Research Institute, Toronto, ON M5T 0S8, Canada
- Techna Institute, Toronto, ON M5G 1L5, Canada
- Department of Ophthalmology, Medical Biophysics, Molecular Genetics, University of Toronto, Toronto, ON M5T 3A9, Canada
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20
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González ME, Gaviria ML, López M, Escudero PA, Bravo A, Vargas SA. Eye Salvage with Intra-Arterial and Intra-Vitreal Chemotherapy in Patients with Retinoblastoma: 8-Year Single-Institution Experience in Colombia. Ocul Oncol Pathol 2021; 7:215-223. [PMID: 34307335 PMCID: PMC8280417 DOI: 10.1159/000511980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/01/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Intra-arterial chemotherapy (IAC) is useful for eye preservation in advanced retinoblastoma (Rb). Intra-vitreal chemotherapy (IvitC) is the latest treatment for vitreous seeds. METHODS The present study is a retrospective assessment of 100 eyes, treated with primary or secondary IAC alone or with IvitC. We evaluated demographic and clinical variables, eye salvage, associated adverse events, and patient survival. Data were analyzed using descriptive statistics. Kaplan-Meier survival curves and Cox hazard ratios were utilized to assess the effect of demographic and clinical variables over eye salvage. RESULTS Bilateral Rb was observed in 61% of patients, and 57% of eyes received secondary treatment. Forty eyes needed intra-arterial plus IvitC and 62 presented advanced disease (group D and E). Three- and 5-year ocular survival probabilities were 75 and 68%. We found a higher risk in group D and E eyes and those requiring 2 or more routes for ophthalmic artery catheterization. Patients coming from other countries also showed increased risk. Using primary or secondary treatment, or IvitC, did not affect this risk. Overall rates of survival and eye salvages were 98.8 and 73%, and we had a 100% catheterization success and none ophthalmic arterial occlusions. CONCLUSIONS In an upper middle-income country such as Colombia, a specialized institution counting with therapeutic alternatives and a multidisciplinary team can reach rates of patient survival and eye salvage similar to those of high-income countries.
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Affiliation(s)
- María Elena González
- Ocular Oncology Service, Hospital San Vicente Fundación, Universidad de Antioquia, Medellín, Colombia
| | - Martha Lia Gaviria
- Paediatric Ophthalmology Service Hospital San Vicente Fundación, Universidad de Antioquia, Medellín, Colombia
| | - Mariana López
- Ophthalmology Service, Hospital San Vicente Fundación, Medellín, Colombia
| | - Pablo Andrés Escudero
- Department of Interventional Neuroradiology, Hospital San Vicente Fundación, Medellín, Colombia
| | - Andrés Bravo
- Medical School, Universidad CES, Medellín, Colombia
| | - Sergio Alberto Vargas
- Department of Interventional Neuroradiology, Hospital San Vicente Fundación, Medellín, Colombia
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21
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Handayani K, Indraswari BW, Sitaresmi MN, Mulatsih S, Widjajanto PH, Kors WA, Kaspers GJ, Mostert S. Treatment Outcome of Children with Retinoblastoma in a Tertiary Care Referral Hospital in Indonesia. Asian Pac J Cancer Prev 2021; 22:1613-1621. [PMID: 34048193 PMCID: PMC8408394 DOI: 10.31557/apjcp.2021.22.5.1613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Indexed: 11/25/2022] Open
Abstract
Background: Although survival rates for retinoblastoma (RB) are over 95% in high-income countries, its high mortality rate in low and middle-income countries remains a great concern. Few studies investigated treatment outcome and factors contributing to RB survival in these latter settings. Aims of this study are to determine treatment outcome of Indonesian children diagnosed with RB and to explore factors predictive of treatment outcome. Methods: This study was a retrospective medical records review combined with an illustrative case report. Children newly diagnosed with RB between January 2011 and December 2016 at a tertiary care referral hospital in Indonesia were included. A home visit was conducted to perform an in-depth interview with a mother of two children affected by RB. Results: Of all 61 children with RB, 39% abandoned treatment, 21% died, 20% had progressive or relapsed disease and 20% event-free survival. Progressive or relapsed disease was more common in older (≥ 2 years at diagnosis, 29%) than young (<2 years at diagnosis, 0%) children (P=0.012). Event-free survival estimate at 5 years was higher in young (42%) than older (6%) children (P=0.045). Odds-ratio for event-free survival was 6.9 (95% CI: 1.747 – 27.328, P=0.006) for young versus older children. Other clinical and socio-demographic characteristics had no significant correlation with treatment outcome or event-free survival. The case report elucidated conditions and obstacles that Indonesian families face when their children are diagnosed with RB. Conclusion: Survival of children with RB in Indonesia is much lower compared to high-income and many other low and middle-income countries. Abandonment of treatment is the most common cause of treatment failure. Older age at diagnosis is associated with more progressive or relapsed disease and worse survival. Interventions to improve general public and health-care providers’ awareness, early detection and treatment adherence are required.
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Affiliation(s)
- Krisna Handayani
- Emma's Children's Hospital, Amsterdam UMC, Vrije Universiteit, Cancer Center Amsterdam, the Netherlands
| | - Braghmandita W Indraswari
- Pediatrics, Faculty Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr Sardjito Hospital, Yogyakarta, Indonesia
| | - Mei N Sitaresmi
- Pediatrics, Faculty Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr Sardjito Hospital, Yogyakarta, Indonesia
| | - Sri Mulatsih
- Pediatrics, Faculty Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr Sardjito Hospital, Yogyakarta, Indonesia
| | - Pudjo H Widjajanto
- Pediatrics, Faculty Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr Sardjito Hospital, Yogyakarta, Indonesia
| | - Wijnanda A Kors
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Gertjan Jl Kaspers
- Emma's Children's Hospital, Amsterdam UMC, Vrije Universiteit, Cancer Center Amsterdam, the Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Saskia Mostert
- Emma's Children's Hospital, Amsterdam UMC, Vrije Universiteit, Cancer Center Amsterdam, the Netherlands.,Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
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22
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Vempuluru VS, Kaliki S. Screening for Retinoblastoma: A Systematic Review of Current Strategies. Asia Pac J Ophthalmol (Phila) 2021; 10:192-199. [PMID: 33793441 DOI: 10.1097/apo.0000000000000378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
PURPOSE The aim of this study was to review the literature on various screening programs, devices, and applications described for the early detection of retinoblastoma. DESIGN Systematic review article. METHODS A PubMed® search was performed to identify articles published with specific reference to screening of neonates, infants and children for retinoblastoma. RESULTS Various devices and mobile phone-based applications based on altered red reflex are finding their way into community screening. Diagnosis of retinoblastoma by newborn eye screening is emphasized in several countries, and red reflex is the most widely employed technique. CONCLUSIONS Several screening programs for early detection of retinoblastoma are evolving in the developing countries, but the practices are not uniform. Universal newborn screening should be the norm. Newer tools and software can be utilized to screen infants on a community scale. Focussed research on revolutionizing digital imaging for a versatile screening tool holds promise for early diagnosis of retinoblastoma.
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Affiliation(s)
- Vijitha S Vempuluru
- Operation Eyesight Universal Institute for Eye Cancer, L V Prasad Eye Institute, Hyderabad, India
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Oronowicz J, Reinhard J, Reinach PS, Ludwiczak S, Luo H, Omar Ba Salem MH, Kraemer MM, Biebermann H, Kakkassery V, Mergler S. Ascorbate-induced oxidative stress mediates TRP channel activation and cytotoxicity in human etoposide-sensitive and -resistant retinoblastoma cells. J Transl Med 2021; 101:70-88. [PMID: 32948812 PMCID: PMC7758186 DOI: 10.1038/s41374-020-00485-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 07/29/2020] [Accepted: 08/11/2020] [Indexed: 02/08/2023] Open
Abstract
There are indications that pharmacological doses of ascorbate (Asc) used as an adjuvant improve the chemotherapeutic management of cancer. This favorable outcome stems from its cytotoxic effects due to prooxidative mechanisms. Since regulation of intracellular Ca2+ levels contributes to the maintenance of cell viability, we hypothesized that one of the effects of Asc includes disrupting regulation of intracellular Ca2+ homeostasis. Accordingly, we determined if Asc induced intracellular Ca2+ influx through activation of pertussis sensitive Gi/o-coupled GPCR which in turn activated transient receptor potential (TRP) channels in both etoposide-resistant and -sensitive retinoblastoma (WERI-Rb1) tumor cells. Ca2+ imaging, whole-cell patch-clamping, and quantitative real-time PCR (qRT-PCR) were performed in parallel with measurements of RB cell survival using Trypan Blue cell dye exclusion. TRPM7 gene expression levels were similar in both cell lines whereas TRPV1, TRPM2, TRPA1, TRPC5, TRPV4, and TRPM8 gene expression levels were downregulated in the etoposide-resistant WERI-Rb1 cells. In the presence of extracellular Ca2+, 1 mM Asc induced larger intracellular Ca2+ transients in the etoposide-resistant WERI-Rb1 than in their etoposide-sensitive counterpart. With either 100 µM CPZ, 500 µM La3+, 10 mM NAC, or 100 µM 2-APB, these Ca2+ transients were markedly diminished. These inhibitors also had corresponding inhibitory effects on Asc-induced rises in whole-cell currents. Pertussis toxin (PTX) preincubation blocked rises in Ca2+ influx. Microscopic analyses showed that after 4 days of exposure to 1 mM Asc cell viability fell by nearly 100% in both RB cell lines. Taken together, one of the effects underlying oxidative mediated Asc-induced WERI-Rb1 cytotoxicity stems from its promotion of Gi/o coupled GPCR mediated increases in intracellular Ca2+ influx through TRP channels. Therefore, designing drugs targeting TRP channel modulation may be a viable approach to increase the efficacy of chemotherapeutic treatment of RB. Furthermore, Asc may be indicated as a possible supportive agent in anti-cancer therapies.
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Affiliation(s)
- Jakub Oronowicz
- Klinik für Augenheilkunde, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Jacqueline Reinhard
- Department of Cell Morphology and Molecular Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
| | - Peter Sol Reinach
- School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, PR China
| | - Szymon Ludwiczak
- Klinik für Augenheilkunde, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Huan Luo
- Klinik für Augenheilkunde, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Marah Hussain Omar Ba Salem
- Klinik für Augenheilkunde, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Miriam Monika Kraemer
- Department of Cell Morphology and Molecular Neurobiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
| | - Heike Biebermann
- Institut für Experimentelle Pädiatrische Endokrinologie, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - Vinodh Kakkassery
- Universität zu Lübeck, Klinik für Augenheilkunde - Universitätsklinikum Schleswig-Holstein (Campus Lübeck), Lübeck, Germany.
| | - Stefan Mergler
- Klinik für Augenheilkunde, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.
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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.
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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
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Ancona-Lezama D, Dalvin LA, Shields CL. Modern treatment of retinoblastoma: A 2020 review. Indian J Ophthalmol 2020; 68:2356-2365. [PMID: 33120616 PMCID: PMC7774148 DOI: 10.4103/ijo.ijo_721_20] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/23/2020] [Accepted: 07/07/2020] [Indexed: 12/23/2022] Open
Abstract
Retinoblastoma management remains complex, requiring individualized treatment based on International Classification of Retinoblastoma (ICRB) staging, germline mutation status, family psychosocial factors and cultural beliefs, and available institutional resources. For this 2020 retinoblastoma review, PubMed was searched for articles dated as early as 1931, with an emphasis on articles from 1990 to the present day, using keywords of retinoblastoma, chemotherapy, intravenous chemotherapy, chemoreduction, intra-arterial chemotherapy, ophthalmic artery chemosurgery, intravitreal chemotherapy, intracameral chemotherapy, cryotherapy, transpupillary thermotherapy, laser, radiation, external beam radiotherapy, plaque radiotherapy, brachytherapy, and enucleation. We discuss current treatment modalities as used in the year 2020, including intravenous chemotherapy (IVC), intra-arterial chemotherapy (IAC), intravitreal chemotherapy (IvitC), intracameral chemotherapy (IcamC), consolidation therapies (cryotherapy and transpupillary thermotherapy [TTT]), radiation-based therapies (external beam radiotherapy [EBRT] and plaque radiotherapy), and enucleation. Additionally, we present a consensus treatment algorithm based on the agreement of three North American retinoblastoma treatment centers, and encourage further collaboration amongst the world's most expert retinoblastoma treatment centers in order to develop consensus management plans and continue advancement in the identification and treatment of this childhood cancer.
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Affiliation(s)
- David Ancona-Lezama
- Ocular Oncology Service, Institute of Ophthalmology and Visual Sciences, Tecnologico de Monterrey, Mexico
| | - Lauren A Dalvin
- Department of Ophthalmology, Mayo Clinic, Rochester, MN, USA
| | - Carol L Shields
- Ocular Oncology Service Wills Eye Hospital, Philadelphia, PA, USA
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Vempuluru VS, Jakati S, Kaliki S. Delayed metastasis in patients with intraocular retinoblastoma: A review of three cases. Eur J Ophthalmol 2020; 31:2042-2047. [PMID: 32703017 DOI: 10.1177/1120672120946285] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE To discuss the clinical presentation, management, and outcome of delayed metastasis in retinoblastoma (RB). METHODS Retrospective case series of three patients. RESULTS Mean age at diagnosis of RB was 29 months (median, 28 months; range, 11-48 months). All were males with non-familial bilateral intraocular RB. Primary treatment for RB included intravenous chemotherapy in all three cases. Secondary treatment included transpupillary thermotherapy/cryotherapy (n = 6 eyes), periocular chemotherapy (n = 2 eyes), intravitreal chemotherapy (n = 1 eye), intra-arterial chemotherapy (n = 1 eye), external beam radiotherapy (EBRT; n = 2 eyes), and enucleation (n = 2 eyes). Primary tumor regression was achieved in all cases and remained status quo at the time of diagnosis of distant metastasis. Two patients developed bone metastasis (ulna; tibia) and one developed soft tissue metastasis (temporal fossa) over a mean follow-up period of 6 years (median, 7 years; range, 5-8 years) from diagnosis of RB. Mean age of detection of metastatic disease was 8 years (median, 8 years; range, 7-9 years). All the lesions were solitary and the diagnosis of metastatic retinoblastoma was confirmed by tissue biopsy. Metastatic disease was treated with surgical excision (n = 1), chemotherapy (n = 2), and EBRT (n = 2). All patients are alive, with two patients free of disease over a mean follow-up period of 23 months (median, 23 months; range, 12-33 months); and 1 in remission 7 months after completion of EBRT. CONCLUSION Long-term follow-up of RB cases is mandatory. In spite of intraocular tumor regression, metastasis can still occur many years after treatment of RB.
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Affiliation(s)
- Vijitha S Vempuluru
- Operation Eyesight Universal Institute for Eye Cancer, LV Prasad Eye Institute, Hyderabad, India
| | - Saumya Jakati
- Ophthalmic Pathology Laboratory, LV Prasad Eye Institute, Hyderabad, India
| | - Swathi Kaliki
- Operation Eyesight Universal Institute for Eye Cancer, LV Prasad Eye Institute, Hyderabad, India
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Yousef YA, Al-Nawaiseh I, Mehyar M, Sultan I, Al-Hussaini M, Jaradat I, Mohammad M, AlJabari R, Abu-Yaghi N, Rodriguez-Galindo C, Qaddoumi I, Wilson M. How Telemedicine and Centralized Care Changed the Natural History of Retinoblastoma in a Developing Country: Analysis of 478 Patients. Ophthalmology 2020; 128:130-137. [PMID: 32682835 DOI: 10.1016/j.ophtha.2020.07.026] [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: 05/02/2020] [Revised: 07/07/2020] [Accepted: 07/10/2020] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To evaluate the efficacy of integrating a telemedicine-based twinning partnership and centralized care for retinoblastoma on survival and eye salvage. DESIGN Four hundred seventy-eight retinoblastoma patients treated at a tertiary referral cancer center (King Hussein Cancer Centre [KHCC]) from 2003 through 2019. PARTICIPANTS Four hundred seventy-eight retinoblastoma patients treated at KHCC after implementing a telemedicine-based program with St. Jude Children's Research Hospital. METHODS We reviewed the outcomes of retinoblastoma patients who were treated at KHCC after implementing a telemedicine-based eye salvage program with St. Jude Children's Research Hospital, and we compared that with outcomes for retinoblastoma patients who were treated before implementing a telemedicine-based retinoblastoma service at KHCC. MAIN OUTCOME MEASURES We analyzed patient demographics, clinical characteristics, treatments received, consultation type and duration, and long-term patient outcomes before and after implementing the twinning program. RESULTS Over 17 years, 813 eyes from 478 children with retinoblastoma were treated at KHCC. Three hundred thirty-five patients (70%) had bilateral disease. Six patients (4%) with unilateral disease and 66 patients (20%) with bilateral disease had a family history of retinoblastoma. After the twinning program was established in 2003, the mortality rate decreased from 38% to 5% (P < 0.0001), and the overall eye salvage rate increased from 4% to 61% (98% for group A, 93% for group B, 81% for group C, and 48% for group D; P < 0.0001). Initially, all cases were discussed via telemedicine, but as knowledge transfer increased, the proportion of cases that required discussion decreased to less than 3% 10 years later. Similarly, treatment changes based on consultations decreased from 70% to 7% after 10 years. Both survival and eye-salvage rates were comparable at the early and later stages of implementing the twinning program. At a median follow-up of 120 months, 5% of patients had died of metastases or secondary neoplasms, 81% were alive, and 14% were lost to follow-up. CONCLUSIONS Centralization of care at a single center in developing countries can achieve patient outcomes comparable with those of developed countries via twinning and telemedicine. This benefit can extend to a large region because two thirds of patients treated at KHCC were non-Jordanians.
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Affiliation(s)
- Yacoub A Yousef
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre, Amman, Jordan.
| | - Ibrahim Al-Nawaiseh
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre, Amman, Jordan
| | - Mustafa Mehyar
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre, Amman, Jordan
| | - Iyad Sultan
- Pediatric Oncology, King Hussein Cancer Centre, Amman, Jordan
| | - Maysa Al-Hussaini
- Pathology and Laboratory Medicine, King Hussein Cancer Centre, Amman, Jordan
| | - Imad Jaradat
- Radiation Oncology, King Hussein Cancer Center, Amman, Jordan
| | - Mona Mohammad
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre, Amman, Jordan
| | - Reem AlJabari
- Department of Surgery (Ophthalmology), King Hussein Cancer Centre, Amman, Jordan
| | | | | | | | - Matthew Wilson
- St. Jude Children's Research Hospital, Memphis, Tennessee; Hamilton Eye Institute, University of Tennessee Health Science Center, Memphis, Tennessee
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Retinoblastoma presentation, treatment and outcome in a large referral centre in Tehran: a 10-year retrospective analysis. Eye (Lond) 2020; 35:575-583. [PMID: 32367000 DOI: 10.1038/s41433-020-0907-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 04/15/2020] [Accepted: 04/16/2020] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND/OBJECTIVES Early diagnosis, care and treatment of retinoblastoma is a challengeable issue for Iranian health system. This study was designed and conducted in a referral multidisciplinary centre in the capital city of Iran to evaluate management, care, prognosis and survival rates of paediatric patients with retinoblastoma. METHODS In this retrospective study, a total number of 309 patients younger than 15 years, diagnosed with retinoblastoma, who referred for diagnosis and treatment to MAHAK's Pediatric Cancer Treatment and Research Center (MPCTRC) from 2007 to 2017 were evaluated. All data were analyzed via SPSS version 22 software in regard of parametric and non-parametric data. Survival rates were analyzed using the Kaplan-Meyer method. RESULTS The mean age of patients was 20 months and the majority of patients (77%) had leukocoria as a common clinical symptom at the time of diagnosis. Primary treatment methods were systemic chemotherapy (94%), laser (35%) and primary enucleation (28%). Relapses occurred in nearly 42% of cases, and the median time from diagnosis to the first relapse was 9 months. At the time analyzing the data, 11% of patients died. Patients' 5-year OS and RFS rates were 79.6% and 41.5%, respectively. CONCLUSION Comparing results with other conducted studies identifies that the recurrence rate was high in our considered patients. Also, OS and RFS rates in our study were not as considerable as other reports. Screening methods, updating protocols and follow-up of patients may lead to improvements in survival rates of patients with retinoblastoma.
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The Role of Intraarterial Chemotherapy in the Management of Retinoblastoma. J Ophthalmol 2020; 2020:3638410. [PMID: 32047660 PMCID: PMC7001664 DOI: 10.1155/2020/3638410] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/26/2019] [Indexed: 02/06/2023] Open
Abstract
Introduction. Retinoblastoma is the most common primary intraocular neoplasm in children. With the advances in medicine, the armamentarium of available treatment modalities has grown. Intraarterial chemotherapy is a relatively new treatment method with promising outcomes. The purpose of this literature review is to evaluate its role in the management of retinoblastoma.
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Eag1 Gene and Protein Expression in Human Retinoblastoma Tumors and its Regulation by pRb in HeLa Cells. Genes (Basel) 2020; 11:genes11020119. [PMID: 31973216 PMCID: PMC7074590 DOI: 10.3390/genes11020119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/12/2020] [Accepted: 01/18/2020] [Indexed: 11/17/2022] Open
Abstract
Retinoblastoma is the most common pediatric intraocular malignant tumor. Unfortunately, low cure rates and low life expectancy are observed in low-income countries. Thus, alternative therapies are needed for patients who do not respond to current treatments or those with advanced cases of the disease. Ether à-go-go-1 (Eag1) is a voltage-gated potassium channel involved in cancer. Eag1 expression is upregulated by the human papilloma virus (HPV) oncogene E7, suggesting that retinoblastoma protein (pRb) may regulate Eag1. Astemizole is an antihistamine that is suggested to be repurposed for cancer treatment; it targets proteins implicated in cancer, including histamine receptors, ATP binding cassette transporters, and Eag channels. Here, we investigated Eag1 regulation using pRb and Eag1 expression in human retinoblastoma. The effect of astemizole on the cell proliferation of primary human retinoblastoma cultures was also studied. HeLa cervical cancer cells (HPV-positive and expressing Eag1) were transfected with RB1. Eag1 mRNA expression was studied using qPCR, and protein expression was assessed using western blotting and immunochemistry. Cell proliferation was evaluated with an MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. RB1 transfection down-regulated Eag1 mRNA and protein expression. The human retinoblastoma samples displayed heterogeneous Eag1 mRNA and protein expression. Astemizole decreased cell proliferation in primary retinoblastoma cultures. Our results suggest that Eag1 mRNA and protein expression was regulated by pRb in vitro, and that human retinoblastoma tissues had heterogeneous Eag1 mRNA and protein expression. Furthermore, our results propose that the multitarget drug astemizole may have clinical relevance in patients with retinoblastoma, for instance, in those who do not respond to current treatments.
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Clinicopathological Findings of Retinoblastoma: A 10-Year Experience from a Tertiary Hospital in Kampala, Uganda. J Ophthalmol 2019; 2019:5829284. [PMID: 31316824 PMCID: PMC6604297 DOI: 10.1155/2019/5829284] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/28/2019] [Accepted: 05/21/2019] [Indexed: 12/19/2022] Open
Abstract
Background Retinoblastoma (RB) is one of the most common cancers occurring in young children in sub-Saharan Africa. The incidence rate reported in the literature is 9,000 new cases per year, which corresponds to 1 in 15,000 births. This study aimed at analyzing the clinicopathological findings in children with RB in Uganda. Purpose The purpose of this study was to describe and analyze the clinicopathological findings in the patients with RB. Design This was a cross-sectional analytical study involving 234 eyeball surgical specimens from 214 patients with RB diagnosed between January 2006 and December 2015. Results The mean age of the patients was 27.8 months (SD = 21.413, range: 1–132 months). More than half of the cases, 50.9%, presented with leucokoria. Invasion of choroid, sclera, anterior chamber, and optic nerve was found in 26.5% (n = 58), 51.2% (n = 88), 26.2% (n = 45), and 29.2% (n = 49), respectively. Twenty-six percent (n = 56) of the cases with intraocular tumour were at stage I and all patients with metastasis 4.7% (n = 11) had stage IV. The correlation between postlaminar optic nerve invasion and massive choroidal invasion was statistically significant (P = 0.002). Also, there was a statistical significance difference between metastasis and postlaminar invasion (P = 0.004). Conclusion The majority of children with RB in Uganda present clinically with leucokoria, and their parents or guardians seek medical intervention at a later stage. Moreover, there was a noticeably significant lag period for the patients to begin treatment after the diagnosis was done.
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Comprehensive characterization of RB1 mutant and MYCN amplified retinoblastoma cell lines. Exp Cell Res 2018; 375:92-99. [PMID: 30584916 DOI: 10.1016/j.yexcr.2018.12.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/19/2018] [Accepted: 12/21/2018] [Indexed: 12/26/2022]
Abstract
In retinoblastoma research tumor-derived cell lines remain an important model to investigate tumorigenesis and new therapy options, due to limited tumor material and lack of adequate animal models. A panel of 10 retinoblastoma cell lines was characterized with respect to mutation, methylation and expression of RB1 and MYCN. These established retinoblastoma cell lines represent the most frequent types of RB1 inactivation and together with the MYCN amplification status, three classes can be distinguished: RB1mut/MYCNnonA, RB1mut/MYCNA and RB1wt/MYCNA. MYCN amplification was identified in five cell lines, whereby two of them, RB522 and RB3823, harbor no aberration in RB1. Targeted sequencing of 160 genes often mutated in cancer identified only few variants in tumor-associated genes other than in RB1. None of these variants was recurrent. mRNA expression analyses of retinal markers, cell cycle regulators and members of the TP53 signaling pathway revealed a high variability between cell lines but no class-specific differences. The here presented thorough validation of retinoblastoma cell lines, including microsatellite analysis for cell line authentication, provides the basis for further in vitro studies on retinoblastoma.
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Howard SC, Zaidi A, Cao X, Weil O, Bey P, Patte C, Samudio A, Haddad L, Lam CG, Moreira C, Pereira A, Harif M, Hessissen L, Choudhury S, Fu L, Caniza MA, Lecciones J, Traore F, Ribeiro RC, Gagnepain-Lacheteau A. The My Child Matters programme: effect of public–private partnerships on paediatric cancer care in low-income and middle-income countries. Lancet Oncol 2018; 19:e252-e266. [DOI: 10.1016/s1470-2045(18)30123-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 01/30/2018] [Accepted: 02/08/2018] [Indexed: 12/18/2022]
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Hampejsková L, Bascaran C, Zondervan M. A tool for planning retinoblastoma services in sub-Saharan Africa. Pediatr Blood Cancer 2017; 64. [PMID: 27808454 DOI: 10.1002/pbc.26296] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 08/11/2016] [Accepted: 09/06/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND Cancer care remains inadequate in low-middle income countries (LMICs). Children with cancer have 80% chance of surviving in high-income countries compared to 20% in LMICs. Retinoblastoma (RB), an aggressive eye cancer of childhood and top childhood cancer in sub-Saharan Africa (SSA), has a low survival rate, due to a delay in diagnosis and abandonment of treatment. The purpose of this study is to provide a tool for planning human resources required to manage RB in SSA. PROCEDURE Online tool was developed with 19 modifiable fields and 23 estimates. Routine data were used to populate modifiable fields: population, birthrate, infant mortality rate, and total fertility rate. Values were held constant: frequency, 1:17,000; familial cases, 8%; unilateral RB, 74%; extraocular disease, 70%; and survival postextraocular treatment, 10%. RESULTS One thousand twenty-three RB incident and familial cases are estimated each year across Ethiopia, Ghana, Malawi, Nigeria, Tanzania, Uganda, Zambia, and Zimbabwe: 75 familial, 700 unilateral, 717 extraocular disease, and 645 palliative. Nigeria represents 431 cases and Zimbabwe 33 cases. Over the eight countries, a total of 41,558 patient visits are estimated each year consisting of unilateral enucleation, follow-up visits, intensive treatment, and familial screening, with a total of 2,802 prosthetic eyes being required each year. CONCLUSIONS In the absence of data, estimates are essential for planning countrywide medical services. More attention is needed around planning for services from the Ministry level including emphasis on building multidisciplinary teams for diseases such as RB, including countrywide database and integrated clinical practice guidelines among all levels of care.
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Affiliation(s)
- Lindsay Hampejsková
- 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
| | - Marcia Zondervan
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
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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.
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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
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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: 342] [Impact Index Per Article: 38.0] [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.
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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
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