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1.
Front Oncol ; 14: 1325167, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38487721

RESUMO

Introduction: Initiated in June 2019, this collaborative effort involved 15 public and private sector hospitals in Pakistan. The primary objective was to enhance the capacity for pediatric neuro-oncology (PNO) care, supported by a My Child Matters/Foundation S grant. Methods: We aimed to establish and operate Multidisciplinary Tumor Boards (MTBs) on a national scale, covering 76% of the population (185.7 million people). In response to the COVID-19 pandemic, MTBs transitioned to videoconferencing. Fifteen hospitals with essential infrastructure participated, holding monthly sessions addressing diagnostic and treatment challenges. Patient cases were anonymized for confidentiality. Educational initiatives, originally planned as in-person events, shifted to a virtual format, enabling continued implementation and collaboration despite pandemic constraints. Results: A total of 124 meetings were conducted, addressing 545 cases. To augment knowledge, awareness, and expertise, over 40 longitudinal lectures were organized for healthcare professionals engaged in PNO care. Additionally, two symposia with international collaborators and keynote speakers were also held to raise national awareness. The project achieved significant milestones, including the development of standardized national treatment protocols for low-grade glioma, medulloblastoma, and high-grade glioma. Further protocols are currently under development. Notably, Pakistan's first pediatric neuro-oncology fellowship program was launched, producing two graduates and increasing the number of trained pediatric neuro-oncologists in the country to three. Discussion: The initiative exemplifies the potential for capacity building in PNO within low-middle income countries. Success is attributed to intra-national twinning programs, emphasizing collaborative efforts. Efforts are underway to establish a national case registry for PNO, ensuring a comprehensive and organized approach to monitoring and managing cases. This collaborative initiative, supported by the My Child Matters/Foundation S grant, showcases the success of capacity building in pediatric neuro-oncology in low-middle income countries. The establishment of treatment protocols, fellowship programs, and regional tumor boards highlights the potential for sustainable improvements in PNO care.

2.
Childs Nerv Syst ; 2024 Feb 16.
Artigo em Inglês | MEDLINE | ID: mdl-38363314

RESUMO

INTRODUCTION: Primary brain tumors are a common cause of morbidity and mortality in children and young people (CYP) globally. Impaired neurocognitive function is a potential severe consequence in primary brain tumor (PBT) survivors. There are no in-depth studies from low- and middle-income countries (LMICs) to inform management and follow-up. The research questions of this study were as follows: Are the sociodemographic factors (lower age of CYP, female gender, low socioeconomic status, low parental education), disease-related factors (high grade of tumor, presence of seizures, presence of hydrocephalous), and treatment-related factors (adjuvant therapy, no surgical intervention, post-treatment seizures, placement of shunts) associated with decline in neurcognition outcomes 12 months post-treatment in CYP with PBTs? METHODS: A prospective cohort study was conducted from November 2020 to July 2023 at the Aga Khan University Hospital and Jinnah Postgraduate Medical Centre, tertiary care hospitals in Karachi, Pakistan. All CYP aged 5 to 21 years with a newly diagnosed PBTs were eligible. The neurocognition assessment was undertaken by a psychologist at two points, i.e., pre-treatment and at 12 months post-treatment using validated tools. The verbal intelligence was assessed by Slosson Intelligence tool, revised 3rd edition (SIT-R3), perceptual reasoning by Raven's Progressive Matrices (RPM), and the Processing Speed Index by Wechsler Intelligence Scale (WISC V) and Wechsler Adult Intelligence Scale (WAIS-IV). The data were analyzed by STATA version 12 software. Generalized estimating equation (GEE) was used to determine the factors associated with the mean change in 12 months post-treatment verbal and non-verbal neurocognition scores. Unadjusted and adjusted beta coefficients with their 95% confidence intervals were reported. RESULTS: A total of 48 CYPs with PBTs were enrolled, 23 (48%) of them were lost to follow-up and 10 (21%) died. The remaining 25 (52%) were reassessed 12 months after treatment. On multivariable analysis, a significant decline in verbal intelligence scores at 12 months was predicted by post-treatment seizures beta = - 20.8 (95% CI, - 38.2, - 3.4), mothers having no formal educational status and lower household monthly income. Similarly, a significant decline in perceptual reasoning scores was also predicted by post-treatment seizures beta = - 10.7 (95% CI, - 20.6, - 0.8), mothers having no formal education and having lower household monthly income. Worsening of processing speed scores at 12 months post-treatment were predicted by tumor histology, post-treatment seizures beta = - 33.9 (95% CI, - 47.7, - 20.0), lower educational status of the mother, and having lower household monthly. However, an improvement was seen in processing speed scores after surgical tumor resection. CONCLUSION: In this novel study, the post-treatment mean change in verbal and non-verbal neurocognition scores was associated with sociodemographic, tumor, and treatment factors. These findings may have potential implications for targeted early psychological screening of higher risk CYP with PBTs. Identification of these predictors may serve as a foundation for developing more cost-effective treatment thereby alleviating the burden of neurocognitive morbidity. However to establish generalizability, future research should prioritize larger-scale, multicountry studies. (Trial registration: ClinicalTrials.gov Identifier: NCT05709522).

3.
Childs Nerv Syst ; 40(1): 47-56, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37466685

RESUMO

INTRODUCTION: Pediatric craniopharyngioma is a complex pathology, with optimal management involving a multidisciplinary approach and thoughtful care coordination. To date, no studies have compared various treatment modalities and outcomes described in different global regions. We conducted a comprehensive systematic review to compare demographics, clinical presentation, treatment approach and outcomes of children diagnosed with craniopharyngioma globally. METHODS: A systematic review was conducted in accordance with the Preferred Reporting Item for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Search terms included "craniopharyngioma" and country-specific terms. Inclusion criteria included full-text studies published between 2000-2022, primarily examining pediatric patients 18-years old or younger diagnosed with craniopharyngioma, and reporting management and outcomes of interest. Data extracted included country of origin, demographical data, initial presentation and treatment modality, and outcomes. Descriptive statistics and between-group comparisons based on country of origin were performed. RESULTS: Of 797 search results, 35 articles were included, mostly originating from high-income countries (HIC) (n = 25, 71.4%). No studies originated from low-income countries (LIC). When comparing HIC to middle-income countries (MIC), no differences in patient demographics were observed. No differences in symptomatology at initial presentation, tumor type, surgical approach or extent of surgical resection were observed. HIC patients undergoing intracystic therapy were more likely to receive bleomycin (n = 48, 85.7%), while the majority of MIC patients received interferon therapy (n = 10, 62.5%). All MIC patients undergoing radiation therapy underwent photon therapy (n = 102). No statistically significant differences were observed in postoperative complications or mean follow-up duration between HIC and MIC (78.1 ± 32.2 vs. 58.5 ± 32.1 months, p = 0.241). CONCLUSION: Pediatric craniopharyngioma presents and is managed similarly across the globe. However, no studies originating from LICs and resource-poor regions examine presentation and management to date, representing a significant knowledge gap that must be addressed to complete the global picture of pediatric craniopharyngioma burden and management.


Assuntos
Craniofaringioma , Neoplasias Hipofisárias , Humanos , Criança , Adolescente , Craniofaringioma/terapia , Craniofaringioma/diagnóstico , Complicações Pós-Operatórias , Imunoterapia , Neoplasias Hipofisárias/terapia , Neoplasias Hipofisárias/diagnóstico
4.
Childs Nerv Syst ; 40(2): 427-434, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37837454

RESUMO

INTRODUCTION: Craniopharyngioma constitutes approximately 10% of primary brain tumors in children. It can cause considerable morbidity and mortality due to the local aggressiveness of the tumor itself or its management affecting the hypothalamus-pituitary axis and optic pathway involvement. There is very scarce data available from LMIC which makes the management controversial where multidisciplinary teams are already not available in most of the centers. This is a single-center cross-sectional retrospective review of 20-year record of 49 patients with craniopharyngioma treated between 2001 and 2020 at Aga Khan University Hospital, a tertiary care center in Karachi, Pakistan. METHODS: We have assessed the epidemiological data of children presenting with the diagnosis of craniopharyngioma, treatment modalities used, and neurological, endocrine, and hypothalamic complications in these patients. The assessment involved a retrospective review of medical records and medical follow-up. RESULTS: Out of a total of 49 patients, 26 (53%) were male, and 23 (46.9%) were female. The mean age was 9.5 years (SD ± 4.5 years). Most common symptoms at initial presentation were headache 41 (83.6%), visual deficit 40 (81.6%), nausea and vomiting 26 (53%), and endocrine abnormalities 16 (32%). Treatment modalities used at our center include gross total resection 11 (22%) and subtotal resection 38 (77%) out of total, while 6 (12.2%) patients received intracystic interferon. Histopathologic findings of the majority of patients (40 (81%)) revealed an adamantinomatous type of tumor. Only 23 (46.9%) children followed in clinic post-op. Median follow-up after craniopharyngioma presentation was 5 years (± 2.1 SD, range: 2-10 years). Pituitary hormone deficiencies (98%) and visual disturbances (75%) were the most common long-term health conditions observed. CONCLUSIONS: Since pituitary hormone deficiencies and visual disturbance were the most common long-term health conditions observed in our study, these patients require a multidisciplinary team follow-up to improve their quality of life.


Assuntos
Craniofaringioma , Hipopituitarismo , Neoplasias Hipofisárias , Criança , Humanos , Masculino , Feminino , Craniofaringioma/epidemiologia , Craniofaringioma/terapia , Craniofaringioma/diagnóstico , Centros de Atenção Terciária , Qualidade de Vida , Estudos Transversais , Países em Desenvolvimento , Neoplasias Hipofisárias/epidemiologia , Neoplasias Hipofisárias/terapia , Neoplasias Hipofisárias/complicações , Estudos Retrospectivos , Hipopituitarismo/epidemiologia , Hipopituitarismo/etiologia , Hormônios Hipofisários , Seguimentos , Resultado do Tratamento
5.
J Pak Med Assoc ; 73(12): 2483-2487, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38083939

RESUMO

The objective of this study is to report clinical, radiological, and histopathological characteristics of three paediatric patients diagnosed as Choroid plexus carcinoma seen at our hospital, between 2015 and 2020. Three patients were diagnosed with choroid plexus carcinomas between 2015 and 2018. The mean age at diagnosis was 1.3 years (range 8 months to 1.5 years). All the three patients had subtotal resection and received adjuvant chemotherapy. One patient also received adjuvant radiotherapy. Despite these treatment measures, residual disease was noted in all three patients and two patients were subsequently treated on palliative care grounds. The average duration of follow-up after the first surgery for all three patients was approximately 33 months. Attaining satisfactory outcome in patients with CPC is challenging. Our case series reflects the difficulty in achieving gross total resection and ensuring that the disease does not recur.


Assuntos
Neoplasias do Plexo Corióideo , Papiloma do Plexo Corióideo , Criança , Humanos , Lactente , Papiloma do Plexo Corióideo/diagnóstico , Papiloma do Plexo Corióideo/patologia , Papiloma do Plexo Corióideo/cirurgia , Estudos Retrospectivos , Recidiva Local de Neoplasia , Neoplasias do Plexo Corióideo/diagnóstico , Neoplasias do Plexo Corióideo/terapia , Neoplasias do Plexo Corióideo/patologia
6.
Diagnostics (Basel) ; 13(24)2023 Dec 16.
Artigo em Inglês | MEDLINE | ID: mdl-38132264

RESUMO

The management of medulloblastoma in children has dramatically changed over the past four decades, with the development of chemotherapy protocols aiming at improving survival and reducing long-term toxicities of high-dose craniospinal radiotherapy. While the staging and treatment of medulloblastoma were until recently based on the modified Chang's system, recent advances in the molecular biology of medulloblastoma have revolutionized approaches in the management of this increasingly complex disease. The evolution of systemic therapies is described in this review.

7.
Pak J Med Sci ; 39(5): 1548-1554, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37680835

RESUMO

Pediatric high-grade glioma (pHGG) is highly malignant central nervous system tumor and constitute 10% of the pediatric gliomas. Effective treatment needs a functioning multi-disciplinary team including pediatric neuro oncologist, neurosurgeon, neuroradiologist, neuropathologist and radiation oncologist. Despite surgical resection, radiotherapy and chemotherapy, most HGG will recur resulting in early death. A significant proportion of HGG occurs in context of cancer predisposition syndromes like Constitutional Mismatch Repair Deficiency (CMMRD) also known as Biallelic Mismatch Repair Deficiency (bMMRD) characterized by high mutational burden. The incidence of HGG with CMMRD is one per million patients. bMMRD is caused by homozygous germline mutations in one of the four Mis Match Repair (MMR) genes (PMS2, MLH1, MSH2, and MSH6). The use of TMZ is now avoided in CMMRD related HGG due to its limited response and known ability to increase the accumulation of somatic mutations in these patients, increasing the risk of secondary tumors. HGG should be managed under the care of multidisciplinary team to receive optimum treatment. This is particularly important for low middle-income countries (LMIC) with limited resources like Pakistan.

8.
J Public Health Res ; 12(3): 22799036231197185, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37700932

RESUMO

Background: Brain tumors are a common cause of morbidity, disability, cognitive deterioration and mortality in children, even after treatment. Little is know about the specific causes. The study aimed to assess potential socio-demographic and antenatal factors in primary brain tumor (PBTs) in children and young people (CYP) in Karachi, Pakistan. Designs and methods: A single center hospital based matched case control study in Karachi, Pakistan. Cases were defined as CYP aged between 5 and 21 years with any histological type and grade of primary brain tumor of any histology, stage or grade. Data were collected from parents of 244 patients at the selected center between 2017 and 2021 via telephonic interview. Controls were 5-21 years old CYP admitted with non-oncological diagnoses matched on age and sex. Matched Odds Ratios for predictors of brain tumor in children were derived. Those of statistical significance were included in a multivariable logistic regression model. Results: In the adjusted model, lower paternal education (matched adjusted odds ratio (maOR) 2.46; 95% CI 1.09-5.55), higher household monthly income (maOR 3.4; 95% CI 1.1-10.2), antenatal paternal use of addictive substances (maOR 19.5; 95% CI 2.1-179.8), and antenatal maternal use of analgesics during pregnancy (maOR 3.0; 95% CI 1.2-7.9) were all independently predictive of brain tumors. Conclusion: This matched case-control study found novel associations between maternal use of analgesics, paternal use of addictive substances, higher household income, and lower paternal education and Primary Brain Tumors in Children and Young People. Longitudinal multicenter studies will be required to test these associations prospectively.

9.
J Coll Physicians Surg Pak ; 33(5): 560-565, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37190693

RESUMO

OBJECTIVE:  To collect and analyse epidemiologic data of all malignancies by age group and gender for the Karachi population to estimate the cancer incidence of 5-years (2017-2021) and identify major risk factors for setting priorities towards cancer control programs. STUDY DESIGN: Observational study. Place and Duration of the Study: Karachi Cancer Registry (KCR) Secretariat, Pakistan Health Research Council (PHRC), JPMC, Karachi, from 2017-2021. METHODOLOGY: Cancer data of seven tertiary care hospitals of Karachi submitted to KCR during the study period were analysed including age, gender, date of first contact, primary site and ICD coding. All the data was cleaned, merged, and analysed. All patients 0-14 years were classified as 'children', all aged 15-19 years were classified as 'adolescents', and those age 20-years and above as 'adults'. Age standardised incidence rates (ASIR) were determined for both genders. RESULTS: During the last five years (2017-2021), a total of 65,886 malignant cases were received. The distributions seen amongst males and females were 33,510 (51%) and 32,376 (49%), respectively with 60,145 (91.3%) tumours found in adults (≥20 years), 4844 (7.3%) in children, and 897 (1.4%) in adolescents. The three most common tumour sites were oral, liver, and colorectal in males; breast, oral and ovary in females; bone, brain and connective tissue in adolescents; and leukaemia, brain and bone in children. The overall ASIR (%) in males was 89.20 for adults, 9.19 for children, and 1.61 for adolescents. The overall ASIR (%) in females was 93.44 for adults, 5.45 for children, and 1.11 for adolescents. CONCLUSION: Oral cancer, a largely preventable cancer is the leading cancer in males while breast cancer is the leading cancer in females followed by oral cancer. In adolescents and children, the incidence closely matches most of the world. KEY WORDS: Karachi, Cancer registry, Oral cancer, Breast cancer, Age-standerdised ratio.


Assuntos
Neoplasias da Mama , Neoplasias Bucais , Adulto , Adolescente , Humanos , Masculino , Feminino , Neoplasias da Mama/epidemiologia , Incidência , Fatores de Risco , Sistema de Registros , Paquistão/epidemiologia
10.
Pediatr Blood Cancer ; 70(11): e28493, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-32790146

RESUMO

Pediatric craniopharyngioma is a rare tumor with excellent survival but significant long-term morbidities due to the loco-regional tumor growth or secondary to its treatment. Visual impairment, panhypopituitarism, hypothalamic damage, and behavioral changes are among the main challenges. This tumor should be managed under the care of a multidisciplinary team to determine the optimum treatment within the available resources. This is particularly important for low middle-income countries where resources are variable. This report provides risk-stratified management guidelines for children diagnosed with craniopharyngioma in a resource-limited setting.


Assuntos
Craniofaringioma , Hipopituitarismo , Neoplasias Hipofisárias , Criança , Humanos , Craniofaringioma/terapia , Renda , Gestão de Riscos , Neoplasias Hipofisárias/terapia
11.
Pediatr Blood Cancer ; 69(11): e29887, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35856658

RESUMO

INTRODUCTION: Brain tumors are the most common solid neoplasms and the second most common malignancy in the pediatric age group. Due to the complexity of their management, pediatric central nervous system (CNS) tumors are not a priority in low- and middle-income countries (LMICs). METHODS: In an attempt to improve the survival rate and overall care, we introduced a dedicated pediatric neuro-oncology service in our institute and evaluated its impact by dividing the pre- and post-era into two cohorts and comparing them: 1998-2013 (16 years: cohort A) and 2014-2019 (6 years: cohort B, after the start of dedicated neuro-oncology services). RESULTS: We observed that after the implementation of a proper neuro-oncology service, the proportion of patients treated with curative intent increased, and survival improved in cohort B. The patient volume also increased from 15.5 per year in cohort A to 44.8 per year in cohort B. The percentage of children given radiation therapy also increased significantly, while the proportion of children treated with chemotherapy remained stable. CONCLUSION: A dedicated multidisciplinary team trained and knowledgeable in the specialty of pediatric neuro-oncology can enhance and improve outcomes, and supportive care and help can provide good quality of life to children and their families with brain neoplasms.


Assuntos
Neoplasias Encefálicas , Neoplasias do Sistema Nervoso Central , Neoplasias Encefálicas/terapia , Neoplasias do Sistema Nervoso Central/terapia , Criança , Países em Desenvolvimento , Humanos , Paquistão , Qualidade de Vida
12.
Implement Sci Commun ; 3(1): 62, 2022 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-35690878

RESUMO

BACKGROUND: The recent implementation of novel therapies has accelerated progress in pediatric cancer care. Despite the significantly poorer survival of patients in low- and middle-income countries (LMICs), administation complexities and other significant resource barriers have limited the translation of these novel therapies in these regions. This study aims to develop a model that can be used to support the implementation of novel therapies, such as blinatumomab (bispecific antibody therapy for B-cell acute lymphoblastic leukemia [B-ALL]) in LMIC centers, with the long-term goal of developing an implementation framework for similar future efforts. METHODS: In this study, mixed methods will be applied to understand the key contextual considerations that can be accounted for through a training program and prospectively designed implementation activities. The Consolidated Framework for Implementation Research will guide the activities related to implementation evaluation in parallel with a drug donation program. A multidisciplinary research team comprising high- and low-middle income healthcare professionals, industry, and implementation scientists has been assembled with the common goal of improving safe access to blinatumomab. To assess the factors affecting blinatumomab administration, semi-structured interviews with diverse collaborators and quantitative assessments of organizational characteristics will be conducted, together with quantitative and qualitative assessments of feasibility, acceptability, appropriateness, and cost of blinatumomab implementation. A quantitative assessment of stakeholder perceptions of different implementation strategies used as part of the multifaceted approach will also be performed. Finally, we will examine the key domains and processes used and construct the implementation roadmap for translation of novel therapies. DISCUSSION: This study will rigorously develop an implementation roadmap for translation of novel therapies in low-resource settings. The knowledge gained in the formative assessment will reveal the priority areas and key implementation strategies. Thereby, the resultant roadmap will facilitate future scale-out strategies for novel therapies in LMICs, thus increasing access, building capacity for management, and ultimately improving the care for children in LMICs.

13.
Pediatr Blood Cancer ; 69(9): e29726, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35484912

RESUMO

BACKGROUND: Low- and middle-income countries sustain the majority of pediatric cancer burden, with significantly poorer survival rates compared to high-income countries. Collaboration between institutions in low- and middle-income countries and high-income countries is one of the ways to improve cancer outcomes. METHODS: Patient characteristics and effects of a pediatric neuro-oncology twinning program between the Hospital for Sick Children in Toronto, Canada and several hospitals in Karachi, Pakistan over 7 years are described in this article. RESULTS: A total of 460 patients were included in the study. The most common primary central nervous system tumors were low-grade gliomas (26.7%), followed by medulloblastomas (18%), high-grade gliomas (15%), ependymomas (11%), and craniopharyngiomas (11.7%). Changes to the proposed management plans were made in consultation with expert physicians from the Hospital for Sick Children in Toronto, Canada. On average, 24% of the discussed cases required a change in the original management plan over the course of the twinning program. However, a decreasing trend in change in management plans was observed, from 36% during the first 3.5 years to 16% in the last 3 years. This program also led to the launch of a national pediatric neuro-oncology telemedicine program in Pakistan. CONCLUSIONS: Multidisciplinary and collaborative efforts by experts from across the world have aided in the correct diagnosis and treatment of children with brain tumors and helped establish local treatment protocols. This experience may be a model for other low- and middle-income countries that are planning on creating similar programs.


Assuntos
Neoplasias Encefálicas , Neoplasias Cerebelares , Meduloblastoma , Neoplasias Encefálicas/terapia , Canadá , Criança , Países em Desenvolvimento , Ecossistema , Humanos , Paquistão
15.
J Pak Med Assoc ; 70(11): 2007-2016, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33341849

RESUMO

Medulloblastoma is the most common malignant brain tumour in children and is a major cause of mortality and morbidity, particularly in low- and middle-income countries. It has been risk-stratified on the basis of clinical (age, metastasis and extent of resection) and histological subtypes (classic, desmoplastic and anaplastic). However, recently medulloblastoma has been sub-grouped by using a variety of different genomic approaches, such as gene expression profiling, micro-ribonucleic acid profiling and methylation array into 4 groups, namely Wingless, Sonic hedgehog, Group 3 and Group 4. This new sub-grouping has important therapeutic and prognostic implications. After acute leukaemia, brain tumour is the second most common malignancy in the paediatric age group. The improvement in outcome of acute lymphoblastic leukaemia in low- and middle-income countries reflects the relative simplicity of diagnostic procedures and management. Unlike leukaemia, the management of brain tumours requires a complex multidisciplinary approach, including neuro-radiologists, neurosurgeons with a paediatric expertise, neuropathologists, radiation oncologists and neuro-oncologists. In addition, the equipment required for the diagnosis (magnetic resonance imaging scan, histological, molecular and genetic techniques) and the management (operating room, radiation facilities) is a limiting factor in countries with limited resources. In Pakistan, there are very few centres able to treat children with brain tumours. The current literature review was planned to provide an update on the management of this tumour.


Assuntos
Neoplasias Encefálicas , Neoplasias Cerebelares , Meduloblastoma , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/genética , Neoplasias Cerebelares/diagnóstico , Neoplasias Cerebelares/genética , Neoplasias Cerebelares/terapia , Criança , Proteínas Hedgehog , Humanos , Meduloblastoma/diagnóstico , Meduloblastoma/terapia , Paquistão
16.
J Pak Med Assoc ; 70(9): 1667-1668, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33040137

RESUMO

Cerebellar Mutism Syndrome (CMS) is a well-described clinical entity that complicates surgeries for posterior fossa tumours; more so in children than adults. This review focuses on the current understanding of CMS, its incidence and risk factors. Incidence showed a variable range in retrospective studies due to variety of definitions. Risk factors can be classified as either modifiable including surgical technique, or non-modifiable which include tumour related factors. A positive correlation has been associated between tumour pathology, brain stem invasion and size of tumour at time of presentation with development of CMS.


Assuntos
Doenças Cerebelares , Neoplasias Infratentoriais , Mutismo , Adulto , Criança , Humanos , Neoplasias Infratentoriais/diagnóstico por imagem , Neoplasias Infratentoriais/cirurgia , Mutismo/etiologia , Complicações Pós-Operatórias , Estudos Retrospectivos
17.
Artigo em Inglês | MEDLINE | ID: mdl-32923898

RESUMO

PURPOSE: Children with pediatric gliomas harboring a BRAF V600E mutation have poor outcomes with current chemoradiotherapy strategies. Our aim was to study the role of targeted BRAF inhibition in these tumors. PATIENTS AND METHODS: We collected clinical, imaging, molecular, and outcome information from patients with BRAF V600E-mutated glioma treated with BRAF inhibition across 29 centers from multiple countries. RESULTS: Sixty-seven patients were treated with BRAF inhibition (pediatric low-grade gliomas [PLGGs], n = 56; pediatric high-grade gliomas [PHGGs], n = 11) for up to 5.6 years. Objective responses were observed in 80% of PLGGs, compared with 28% observed with conventional chemotherapy (P < .001). These responses were rapid (median, 4 months) and sustained in 86% of tumors up to 5 years while receiving therapy. After discontinuation of BRAF inhibition, 76.5% (13 of 17) of patients with PLGG experienced rapid progression (median, 2.3 months). However, upon rechallenge with BRAF inhibition, 90% achieved an objective response. Poor prognostic factors in conventional therapies, such as concomitant homozygous deletion of CDKN2A, were not associated with lack of response to BRAF inhibition. In contrast, only 36% of those with PHGG responded to BRAF inhibition, with all but one tumor progressing within 18 months. In PLGG, responses translated to 3-year progression-free survival of 49.6% (95% CI, 35.3% to 69.5%) versus 29.8% (95% CI, 20% to 44.4%) for BRAF inhibition versus chemotherapy, respectively (P = .02). CONCLUSION: Use of BRAF inhibition results in robust and durable responses in BRAF V600E-mutated PLGG. Prospective studies are required to determine long-term survival and functional outcomes with BRAF inhibitor therapy in childhood gliomas.

18.
Cancer ; 126(18): 4235-4245, 2020 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-32648950

RESUMO

BACKGROUND: Childhood cancer is a highly curable disease when timely diagnosis and appropriate therapy are provided. A negative impact of the coronavirus disease 2019 (COVID-19) pandemic on access to care for children with cancer is likely but has not been evaluated. METHODS: A 34-item survey focusing on barriers to pediatric oncology management during the COVID-19 pandemic was distributed to heads of pediatric oncology units within the Pediatric Oncology East and Mediterranean (POEM) collaborative group, from the Middle East, North Africa, and West Asia. Responses were collected on April 11 through 22, 2020. Corresponding rates of proven COVID-19 cases and deaths were retrieved from the World Health Organization database. RESULTS: In total, 34 centers from 19 countries participated. Almost all centers applied guidelines to optimize resource utilization and safety, including delaying off-treatment visits, rotating and reducing staff, and implementing social distancing, hand hygiene measures, and personal protective equipment use. Essential treatments, including chemotherapy, surgery, and radiation therapy, were delayed in 29% to 44% of centers, and 24% of centers restricted acceptance of new patients. Clinical care delivery was reported as negatively affected in 28% of centers. Greater than 70% of centers reported shortages in blood products, and 47% to 62% reported interruptions in surgery and radiation as well as medication shortages. However, bed availability was affected in <30% of centers, reflecting the low rates of COVID-19 hospitalizations in the corresponding countries at the time of the survey. CONCLUSIONS: Mechanisms to approach childhood cancer treatment delivery during crises need to be re-evaluated, because treatment interruptions and delays are expected to affect patient outcomes in this otherwise largely curable disease.


Assuntos
COVID-19 , Neoplasias/terapia , África do Norte/epidemiologia , Ásia Ocidental/epidemiologia , COVID-19/epidemiologia , Criança , Estudos Transversais , Atenção à Saúde , Pessoal de Saúde/organização & administração , Pessoal de Saúde/estatística & dados numéricos , Hospitais/estatística & dados numéricos , Humanos , Oriente Médio/epidemiologia , Inquéritos e Questionários
19.
Cureus ; 12(12): e12053, 2020 Dec 13.
Artigo em Inglês | MEDLINE | ID: mdl-33447482

RESUMO

Congenital thrombotic thrombocytopenic purpura (TTP) is an autosomal recessive disorder characterized by thrombocytopenia, microangiopathic hemolytic anemia (MAHA), and thrombosis. Congenital TTP should also be considered while investigating neonatal hyperbilirubinemia, hemolytic anemia, or isolated thrombocytopenia. This case is of an 8-year-old male child who presented with prolonged and recurrent history of thrombocytopenia and MAHA, first identified when he was seven weeks of age preceding neonatal hyperbilirubinemia. Peripheral blood smear examination showed thrombocytopenia and schistocytes. He then went through a series of laboratory investigations until at the age of seven years, when the ADAMTS13 (a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13) antigen level was performed and found to be low: 40 ng/ml (630-850). Subsequently, he received a trial of steroids and rituximab which were found to be ineffective and associated with complications. In this case, a definitive diagnosis was delayed until the age of eight years when a novel homozygous pathogenic frameshift variant ADAMTS13 c.3033delC, p.Cys1012AlafsX109 in exon 23 was identified. After receiving regular plasma infusions, thrombocytopenia and hemolysis improved. Congenital TTP should be considered in every neonatal hyperbilirubinemia, thrombocytopenia or hemolytic anemia to avoid delay in diagnosis. Early diagnosis through analysis of the ADAMTS13 gene is crucial for optimal management as well as for genetic counselling.

20.
Cureus ; 12(11): e11721, 2020 Nov 26.
Artigo em Inglês | MEDLINE | ID: mdl-33391952

RESUMO

Intracranial germ cell tumors (GCTs) account for 3%-5% of all intracranial tumors. They commonly manifest during first two decades of life. We are reporting a case of a young female, who presented with progressive visual loss, polyuria and polydipsia, harboring an intracranial GCT. She presented initially to a neurosurgery clinic and then to an endocrine clinic, with a history of chronic worsening headache and recent onset visual blurring along with polyuria with polydipsia. On further inquiry, she was found to have primary amenorrhea, easy fatigability, and failure of development of secondary sexual characteristics. On examination the patient had bitemporal hemianopia with breast development at tanner stage II and pubic and axillary hair at tanner stage I. Her initial hormonal workup was suggestive of panhypopituitarism with diabetes insipidus. MRI pituitary showed a sellar mass with suprasellar extension, so an initial impression of a pituitary macroadenoma was made and the patient underwent trans-sphenoidal surgery. The histopathology was suggestive of lymphoid hyperplasia. Follow up MRI showed significant residual tumor and her vision and pituitary function did not recover. Neurosurgery was planned as second surgery, but we requested a second opinion of histopathology report and it was suggestive of a germinoma. She was then started on chemotherapy followed by radiotherapy, after which her tumor size reduced significantly, though she still required pituitary hormone replacement therapy.  Pituitary stalk lesions are rare and their diagnosis is challenging as different etiologies present clinically and radiologically in a similar manner with tissue diagnosis being the gold standard. Germinoma is a radiosensitive tumor. In our patient it took a long time to reach the correct diagnosis and late diagnosis resulted in permanent visual field defect and panhypopituitarism. This case report emphasizes that we should guide and educate our patients to seek medical advice early in the course of disease. We should also keep differential diagnosis in mind before referring the patient for surgery.

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