Mariana Kruger
Stellenbosch University
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Publication
Featured researches published by Mariana Kruger.
Lancet Oncology | 2013
Richard Sullivan; Jerzy R Kowalczyk; Bharat Agarwal; Ruth Ladenstein; Edel Fitzgerald; Ronald D. Barr; Eva Steliarova-Foucher; Ian Magrath; Scott C. Howard; Mariana Kruger; Maria Grazia Valsecchi; Andrea Biondi; Paul E. Grundy; Malcolm A. Smith; Peter C. Adamson; Gilles Vassal; Kathy Pritchard-Jones
Childhood cancer is a major global health issue. Every year, almost 100 000 children die from cancer before the age of 15 years, more than 90% of them in resource-limited countries. Here, we review the key policy issues for the delivery of better care, research, and education of professionals and patients. We present a key list of time-limited proposals focusing on change to health systems and research and development. These include sector and system reforms to make care affordable to all, policies to promote growth of civil society around both cancer and Millennium Development Goals, major improvements to public health services (particularly the introduction of national cancer plans), improved career development, and increased remuneration of specialist health-care workers and government support for childhood cancer registries. Research and development proposals focus on sustainable funding, the establishment of more research networks, and clinical research specifically targeted at the needs of low-income and middle-income countries. Finally, we present proposals to address the need for clinical trial innovation, the complex dichotomy of regulations, and the threats to the availability of data for childhood cancers.
Pediatric Blood & Cancer | 2013
Guillermo L. Chantada; Sandra Luna-Fineman; Rita S. Sitorus; Mariana Kruger; Trijn Israels; Carlos Leal-Leal; Sameer Bakhshi; Ibrahim Qaddoumi; David H. Abramson; François Doz
Retinoblastoma remains incurable in many regions of the world. The major obstacles to cure are delayed diagnosis, poor treatment compliance, and lack of evidence‐based recommendations for clinical management. Although enucleation is curative for intraocular disease, in developing countries retinoblastoma is often diagnosed after the disease has disseminated beyond the eye. A SIOP‐PODC committee generated guidelines for the clinical management of retinoblastoma in developing countries and developed a classification system based on the resources available in those settings. Recommendations are provided for staging and treatment of unilateral and bilateral retinoblastoma and counseling of families for whom compliance is an issue. Pediatr Blood Cancer 2013; 60: 719–727.
Pediatric Blood & Cancer | 2014
Mariana Kruger; Marc Hendricks; Alan Davidson; Cristina Stefan; Ann van Eyssen; Ronelle Uys; Anel van Zyl; P. B. Hesseling
The majority of children with cancer live in low‐ and middle‐income countries (LMICs) with little or no access to cancer treatment. The purpose of the paper is to describe the current status of childhood cancer treatment in Africa, as documented in publications, dedicated websites and information collected through surveys. Successful twinning programmes, like those in Malawi and Cameroon, as well as the collaborative clinical trial approach of the Franco‐African Childhood Cancer Group (GFAOP), provide good models for childhood cancer treatment. The overview will hopefully influence health‐care policies to facilitate access to cancer care for all children in Africa. Pediatr Blood Cancer 2014;61:587–592.
Pediatric Blood & Cancer | 2013
Gabriele Calaminus; Jillian R. Birch; Rachel Hollis; Benson Pau; Mariana Kruger
Since the year 2000, there has been a 35% annual decrease in mortality among children under the age of five worldwide. The decrease is mainly attributed to the decrease in childhood epidemic infections, for example, due to vaccination programs. In the near future, this decrease will draw attention to paediatric non‐communicable diseases (NCDs), and cancer is one of the most common. Access to care for children with cancer and survival rates have improved dramatically in high‐income countries. However, it is important that a global perspective addresses problems in developing countries in particular. To meet this challenge, it is critical that emphasis is placed on demands such as access to care and drugs that are known to be effective, and which can be safely administered in resource‐limited settings. Additionally, cancer registries and improved health care structures that include care for children with cancer, are paramount for further progress to increase awareness and the survival of children with cancer. The purpose of this paper is to describe current worldwide interventions to improve childhood cancer from the perspective of the International Society of Paediatric Oncology (SIOP). This global perspective will serve as an introduction to a series of papers from six SIOP continental branches, which will highlight the specific and/or common issues related to children with cancer worldwide. To strengthen the communication among and synergistic effects of various paediatric cancer stakeholders, SIOP could serve as a global platform for a proposed Global Paediatric Cancer Network through the interaction of its continental branches and partner collaborations. Pediatr Blood Cancer 2013;60:2080–2086.
Aids Care-psychological and Socio-medical Aspects of Aids\/hiv | 2016
Ute Dagmar Feucht; Anell Meyer; Winifred Nancy Thomas; Brian William Cameron Forsyth; Mariana Kruger
HIV-infected children require early initiation of antiretroviral therapy (ART) to ensure good outcomes. The aim was to investigate missed opportunities in childhood HIV diagnosis leading to delayed ART initiation. Baseline data were reviewed of all children aged <15 years referred over a 1-year period for ART initiation to the Kalafong Hospital HIV services in Gauteng, South Africa. Of the 250 children, one-quarter (24.5%) was of school-going age, 34.5% in the preschool group, 18% between 6 and 12 months old and 23% below 6 months of age (median age = 1.5 years [interquartile range 0.5–4.8]). Most children (82%) presented with advanced/severe HIV disease, particularly those aged 6–12 months (95%). Malnutrition was prominent and referrals were mostly from hospital inpatient services (61%). A structured caregiver interview was conducted in a subgroup, with detailed review of medical records and HIV results. The majority (≥89%) of the 65 interviewed caregivers reported good access to routine healthcare, except for postnatal care (26%). Maternal HIV-testing was mostly done during the second and third pregnancy trimesters (69%). Maternal non-disclosure of HIV status was common (63%) and 83% of mothers reported a lack of psychosocial support. Routine infant HIV-testing was not done in 66%, and inadequate reporting on patient-held records (Road-to-Health Cards/Booklets) occurred frequently (74%). Children with symptomatic HIV disease were not investigated at primary healthcare in 53%, and in 68% of families the siblings were not tested. One-third of children (35%) had a previous HIV diagnosis, with 77% of caregivers aware of these prior results, while 50% acknowledged failing to attend ART services despite referral. In conclusion, a clear strategy on paediatric HIV case finding, especially at primary healthcare, is vital. Multiple barriers need to be overcome in the HIV care pathway to reach high uptake of services, of which especially maternal reasons for not attending paediatric ART services need further exploration.
Tropical Medicine & International Health | 2016
Feucht Ud; Van Bruwaene L; Becker Pj; Mariana Kruger
To describe growth in HIV‐infected children on long‐term antiretroviral therapy (ART) and to assess social, clinical, immunological and virological factors associated with suboptimal growth.
Pediatric Infectious Disease Journal | 2014
Ute Dagmar Feucht; Theresa M. Rossouw; Gisela Van Dyk; Brian William Cameron Forsyth; Mariana Kruger
Background: South African HIV-infected infants below age 6 months and children younger than 3 years on concomitant antimycobacterial treatment received full-dose ritonavir single protease inhibitor (RTV-sPI), together with 2 nucleoside reverse transcriptase inhibitors, from 2004 until 2008. Use of RTV-sPI has been described as a risk factor for PI drug resistance, but the extent of this resistance is unknown. Aim: This research assesses clinical and virological outcome of a pediatric RTV-sPI cohort at a large South African antiretroviral therapy (ART) site in a high-burden tuberculosis setting, including resistance mutations in those failing ART. Methods: All children initiated at Kalafong hospital before December 2008, who ever received RTV-sPI–based regimens, were assessed for patient outcome, virological failure and drug resistance. HIV viral loads were done 6-monthly and HIV genotyping since 2009. Results: There were 178 children who ever received RTV-sPI, with a mean age at ART initiation of 1.4 years. Of the 135 children (76%) with >6 months follow-up, 17 children (13%) never had viral suppression, whereas another 25 (18%) developed virological failure later. Nineteen of 26 children (73%) with genotypic resistance results had major PI mutations. Conclusions: Treatment failure is not a universal feature in children with prior exposure to RTV-sPI regimens, but the significant proportion (31%) with virological failure is of concern due to high prevalence of major PI- and multiclass mutations. These children currently have no treatment options in the South African public sector, highlighting the urgent need for access to alternative ART regimens to ensure improved outcomes.
Journal of Medical Ethics | 2014
John R. Williams; Dominique Sprumont; Marie Hirtle; Clement Adebamowo; Paul G. Braunschweiger; Susan Bull; Christian Burri; Marek Czarkowski; Chien Te Fan; Caroline Perrin Franck; Eugenjius Gefenas; Antoine Geissbuhler; Ingrid Klingmann; Bocar Kouyaté; Jean-Pierre Kraehenbhul; Mariana Kruger; Keymanthri Moodley; Francine Ntoumi; Thomas Nyirenda; Alexander S. Pym; Henry J. Silverman; Sara Tenorio
This paper reports the results of a workshop held in January 2013 to begin the process of establishing standards for e-learning programmes in the ethics of research involving human participants that could serve as the basis of their evaluation by individuals and groups who want to use, recommend or accredit such programmes. The standards that were drafted at the workshop cover the following topics: designer/provider qualifications, learning goals, learning objectives, content, methods, assessment of participants and assessment of the course. The authors invite comments on the draft standards and eventual endorsement of a final version by all stakeholders.
The South African journal of clinical nutrition | 2010
Mariana Kruger
Abstract This paper will explore the role of evidence-based medicine in ethical practice of health care professionals. It will also address some of its limitations and potential for negative impact on health care.
Tropical Medicine & International Health | 2018
Priscilla Springer; Amy Slogrove; Barbara Laughton; Julie A. Bettinger; Henriëtte H. Saunders; Christopher D. Molteno; Mariana Kruger
To compare neurodevelopmental outcomes of HIV‐exposed uninfected (HEU) and HIV‐unexposed uninfected (HUU) infants in a peri‐urban South African population. HEU infants living in Africa face unique biological and environmental risks, but uncertainty remains regarding their neurodevelopmental outcome. This is partly due to lack of well‐matched HUU comparison groups needed to adjust for confounding factors.