KARINA HELENA CANTON VIANI
Projetos de Pesquisa
Unidades Organizacionais
Instituto da Criança, Hospital das Clínicas, Faculdade de Medicina
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- Nutritional status at diagnosis among children with cancer referred to a nutritional service in Brazil(2021) VIANI, Karina; BARR, Ronald D.; FILHO, Vicente Odone; LADAS, Elena J.Introduction: Children and adolescents with cancer are particularly vulnerable to malnutrition and require special attention on nutritional assessment. An adequate nutritional status during treatment is essential in reducing morbidity and mortality, being a modifiable risk factor for clinical outcomes. This study aims to determine the nutritional status of pediatric patients with cancer assessed by the nutrition team at diagnosis and evaluate its association with the overall survival. Method: This is a retrospective cross-sectional study of patients at the time of cancer diagnosis who had nutritional assessments when hospitalized or referred to the nutrition outpatient clinic. Nutritional status was classified by the mid-upper arm circumference (MUAC) and body mass index for age z-score (zBMI/A). The Cox regression analysis was used to determine the association between the nutritional status and overall survival, adjusting for gender, tumor group and age. Results: The study included 366 patients. The prevalence of undernutrition varied from 8 to 23% and overweight, from 5 to 20%. The MUAC identified more children as undernourished than the zBMI/A in patients with solid and hematological tumors. There was no significant difference in the overall survival by malnutrition classified by the zBMI/A (p = 0.1507) or MUAC (p = 0.8135). When adjusted for gender, tumor group and age, the nutritional status classification by the zBMI/A (hazard ratio [HR], 1.27; 95% confidence interval [CI], 0.88-1.83; p = 0.209) and MUAC (HR, 0.94; 95% CI, 0.61-1.44; p = 0.773) did not impact overall survival. Conclusion: The nutritional status at diagnosis did not significantly impact the overall survival, which suggests there may have been a protective effect by successful nutritional intervention during the subsequent care. (C) 2020 Associacao Brasileira de Hematologia, Hemoterapia e Terapia Celular.
- Can calf circumference be a viable option for nutritional assessment in the PICU?(2021) VIEIRA, Rafaela Rodrigues; CAMPOS, Marina Morgado Simoes de; ZAMBERLAN, Patricia; VIANI, KarinaBackground: Children admitted to paediatric intensive care units (PICUs) often need specialised nutri-tional intervention. Nutritional assessments provide specific data to support such interventions. Body composition measures, such as mid-upper arm circumference (MUAC), can complement nutritional assessment. However, MUAC has limitations. Calf circumference (CC) is an easy and common measure of muscle loss in the elderly; however, there are still very few studies on CC in children. Aims: To evaluate the viability of using CC for nutritional monitoring of children under intensive care, compared with MUAC and weight. Methods: Patients aged 2-10 years admitted to the PICU between December 2018 and August 2019 were included in the study. Two MUAC, CC, and weight measurements were performed: one in the first 24 h after PICU admission and another after 7 days. As there are no reference values for CC in children, this measure was used solely to observe the patient's individual progress. The nutritional status, both ac-cording to body mass index and MUAC, was used to characterise samples. Percentage changes in these measures were compared using the Wilcoxon signed-rank test for comparison between medians and Spearman's correlation test. Information from medical records regarding hospitalisation was also collected and analysed. Results: Thirty patients were included in the study. During hospitalisation week 1, CC decreased significantly (p = 0.001), whereas MUAC (p = 0.427) and weight (p = 0.315) did not change significantly. Percentage changes in CC and MUAC were statistically different (p = 0.0449), with a positive correlation between the changes in both measures (p = 0.0333; r = 0.3896); conversely, although the percentage changes in CC and weight significantly differed (p = 0.0066), no correlation was found between them (p = 0.9382; r = 0.0148). The percentage changes in MUAC and weight were not different (p = 0.1880) or correlated (p = 0.1691; r = 0.2577). No statistically significant relationship was found between per-centage changes in CC and clinical outcomes (length of stay, fasting time, and mechanical ventilation time). Conclusions: CC appears to be a viable measure for use in PICUs. Although positively correlated with MUAC, a measure proven useful in critically ill children, CC decreased significantly in the first week of intensive care, whereas MUAC remained unchanged, indicating that CC may show signs of depletion earlier than MUAC in these patients. Our study reinforces the importance of alternative measures for anthropometric assessment of critically ill children.
- Increased nutrition risk at admission is associated with longer hospitalization in children and adolescents with COVID-19(2022) ZAMBERLAN, Patricia; CARLOTTI, Ana Paula de Carvalho Panzeri; VIANI, Karina Helena Canton; RODRIGUEZ, Isadora Souza; SIMAS, Josiane de Carvalho; SILVERIO, Ariadne Beatriz; VOLPON, Leila Costa; CARVALHO, Werther Brunow de; DELGADO, Artur FigueiredoBackground We investigated the association of nutritional risk and inflammatory marker level with length of stay (LOS) in children and adolescents hospitalized for COVID-19 infection in two pediatric teaching hospitals in a developing country. Methods This was a cross-sectional analytical retrospective study performed in two pediatric hospitals. We included the data from all children and adolescents who were hospitalized with a SARS-CoV-2 infection between March and December 2020. Demographic, anthropometric, clinical, and laboratory data were extracted from electronic medical records. Nutritional risk was assessed according to the STRONGkids tool within 24 hours of admission and was categorized into two levels: >= 4 (high risk) and <4 (moderate or low risk). Means or medians were compared between nutritional risk groups using the t test and Mann-Whitney U test, respectively. The association of nutritional risk and inflammatory markers with LOS was estimated using the Kaplan-Meier method and log-rank test. Cox proportional-hazard and linear regression models were performed, and adjusted for sex, age, and respiratory symptoms. Results From a total of 73 patients, 20 (27.4%) had a STRONGkids score >= 4 at admission, which was associated with a longer LOS even after adjusting (beta = 12.30; 1.74-22.9 95% CI; P = 0.023). The same association was observed between LOS and all laboratory markers except for D-dimer. Conclusion Among children and adolescents with COVID-19, a STRONGkids score >= 4 at admission, lower values of albumin, lymphocytes, and hemoglobin, and higher CRP values were associated with longer LOS.
- Nutrition of Children With Cancer in Brazil: A Systematic Review(2020) VIANI, Karina; ALBUQUERQUE, Luiza; BARR, Ronald D.; LADAS, Elena J.PURPOSEThe objective of this systematic review was to describe nutrition-related publications on children and adolescents diagnosed with cancer in Brazil.METHODSThe methodology followed that of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Medline, LILACS (the Latin American & Caribbean Health Sciences Literature), and Embase were searched in April 2019, and data extraction and rating of methodologic study quality (according to the National Institutes of Health quality score assessment) were performed independently by reviewers.RESULTSTwenty-seven studies met the inclusion criteria, reporting on 3,509 patients from 1994 to 2018. Most of the studies (74%) were of poor quality in methodology and reporting. Different cancer diagnoses were included in 52% of studies, whereas acute leukemia was the exclusive focus in 41%. The majority of the articles (70%) were from institutions in the Southeast Region of Brazil, mainly the state of SAo Paulo (74%); no publications were from the North Region of the country. Twelve studies addressed nutritional status and body composition, reporting an abundance of malnourished patients in the Brazilian population of children and adolescents with cancer. Six studies on micronutrients pointed to possible deficiencies in this population, with a yet unclear but promising role for supplementation during treatment.CONCLUSIONEvidence indicates that there is great interest in the impact of nutrition on childhood cancer treatment and clinical outcomes in Brazil. However, there is a need to focus on high-quality research, particularly with multicentric/national studies. This will help establish research priorities and better planned clinical interventions, adapted to each region of the country.
- Evaluation of the nutrition screening tool for childhood cancer (SCAN)(2016) MURPHY, Alexia J.; WHITE, Melinda; VIANI, Karina; MOSBY, Terezie T.Background & aims: Malnutrition is a serious concern for children with cancer and nutrition screening may offer a simple alternative to nutrition assessment for identifying children with cancer who are at risk of malnutrition. The present paper aimed to evaluate the nutrition screening tool for childhood cancer (SCAN). Methods: SCAN was developed after an extensive review of currently available tools and published screening recommendation, consideration of pediatric oncology nutrition guidelines, piloting questions, and consulting with members of International Pediatric Oncology Nutrition Group. In Study 1, the accuracy and validity of SCAN against pediatric subjective global nutrition assessment (pediatric SGNA) was determined. In Study 2, subjects were classified as 'at risk of malnutrition' and 'not at risk of malnutrition' according to SCAN and measures of height, weight, body mass index (BMI) and body composition were compared between the groups. Results: The validation of SCAN against pediatric SGNA showed SCAN had 'excellent' accuracy (0.90, 95% CI 0.78-1.00; p < 0.001), 100% sensitivity, 39% specificity, 56% positive predictive value and 100% negative predictive value. When subjects in Study 2 were classified into 'at risk of malnutrition' and 'not at risk of malnutrition' according to SCAN, the 'at risk of malnutrition' group had significantly lower values for weight Z score (p = 0.001), BMI Z score (p = 0.001) and fat mass index (FMI) (p = 0.04), than the 'not at risk of malnutrition' group. Conclusions: This study shows that SCAN is a simple, quick and valid tool which can be used to identify children with cancer who are at risk of malnutrition.
- Assessment of nutritional status in children with cancer: A narrative review(2020) VIANI, Karina; TREHAN, Amita; MANZOLI, Bianca; SCHOEMAN, JudyA child's appropriate development stems in large part from proper nutrition. Malnutrition is an adverse prognostic factor in children with cancer, and its prevalence is highly variable. Currently, there is no standardized definition and assessment method of nutritional status in pediatric oncology. A complete nutritional assessment includes anthropometry, biochemical, clinical, and dietary assessments. In this article, we explore these methods and suggest practical approaches for pediatric cancer units depending on the levels of care that these can provide. We also advise on the monitoring and follow-up of children with cancer during and after treatment, and discuss potential areas for future research.
- The development, testing, and preliminary feasibility of an adaptable pediatric oncology nutrition algorithm for low-middle income countries(2015) FLEMING, C. A. K.; VIANI, K.; MURPHY, A. J.; MOSBY, T. T.; ARORA, B.; SCHOEMAN, J.; LADAS, E. J.PURPOSE: Despite advances in the field of pediatric oncology, which have contributed to an overall increase in event-free survival, high rates of malnutrition in low-middle income countries (LMICs) is still a major concern. This paper aims to describe the multifaceted development process of a nutrition intervention algorithm for pediatric oncology in LMIC. METHODS: The development of evidence-based algorithm took place over seven developmental phases, utilizing an interdisciplinary process with the clinical review. Phase 1: Collaboration with the International Paediatric Oncology Nutrition Group. Phase 2: Review of peer-reviewed literature for evidence-based algorithm. Phase 3: Draft algorithm development. Phase 4: Draft algorithm presented at international meetings for stakeholder feedback. Phase 5: Consultation with LMIC dieticians to identify additional needs and feasibility of the algorithm in resource-poor settings. Phase 6: Review of the final draft algorithm by an expert panel. Phase 7: Pilot and Preliminary Feasibility. RESULTS: The nutrition algorithm was piloted in three LMIC countries (Brazil, South Africa and India). Overall the LMIC nutrition intervention algorithm was considered feasible for use with a ""yes"" response to the question ""was the algorithm useful to know what nutrition to give the child and when"" 90% of the time, rendering to the tool feasible. However, the testing process did identify several limitations that need to be considered in future versions. CONCLUSIONS: This comprehensive collaborative process with interdisciplinary health professionals has successfully developed a pediatric oncology nutrition intervention algorithm for LMIC. Further feasibility testing and a longitudinal study are required.