ARTUR FIGUEIREDO DELGADO
Projetos de Pesquisa
Unidades Organizacionais
Instituto da Criança, Hospital das Clínicas, Faculdade de Medicina
LIM/36 - Laboratório de Pediatria Clínica, Hospital das Clínicas, Faculdade de Medicina
LIM/36 - Laboratório de Pediatria Clínica, Hospital das Clínicas, Faculdade de Medicina
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- Update on the diagnosis and management of COVID-19 in pediatric patients(2020) CARLOTTI, Ana Paula de Carvalho Panzeri; CARVALHO, Werther Brunow de; JOHNSTON, Cintia; GILIO, Alfredo Elias; MARQUES, Heloisa Helena de Sousa; FERRANTI, Juliana Ferreira; RODRIGUEZ, Isadora Souza; DELGADO, Artur FigueiredoCoronavirus disease (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), became a pandemic in March 2020, affecting millions of people worldwide. However, COVID-19 in pediatric patients represents 1-5% of all cases, and the risk for developing severe disease and critical illness is much lower in children with COVID-19 than in adults. Multisystem inflammatory syndrome in children (MIS-C), a possible complication of COVID-19, has been described as a hyperinflammatory condition with multiorgan involvement similar to that in Kawasaki disease or toxic shock syndrome in children with evidence of SARS-CoV-2 infection. This review presents an update on the diagnostic methods for COVID-19, including reverse-transcriptase polymerase chain reaction (RT-PCR) tests, serology tests, and imaging, and summarizes the current recommendations for the management of the disease. Particular emphasis is placed on respiratory support, which includes noninvasive ventilation and invasive mechanical ventilation strategies according to lung compliance and pattern of lung injury. Pharmacological treatment, including pathogen-targeted drugs and host-directed therapies, has been addressed. The diagnostic criteria and management of MIS-C are also summarized.
- A vancomicina administrada na dose empírica garante a cobertura de pacientes pediátricos contra patógenos Gram-positivos?(2020) PIRES, Frederico Ribeiro; PAULA, Stefano Ivani de; DELGADO, Artur Figueiredo; CARVALHO, Werther Brunow de; DUARTE, Nilo José Coelho; MORALES JÚNIOR, Ronaldo; SANTOS, Silvia Regina Cavani JorgeAbstract Objective: To investigate the vancomycin effectiveness against gram-positive pathogens with the minimum inhibitory concentration of 1mg/L in pediatric patients based on the area under the curve and the minimum inhibitory concentration ratio > 400. Methods: A population of 22 pediatric patients (13 boys) admitted to the pediatric intensive care unit with preserved renal function was stratified in two groups (G1 < 7 years and G2 ≥ 7 years). After the fourth dose administered of vancomycin (10 - 15mg/kg every 6 hours) was administered, two blood samples were collected (third and fifth hours), followed by serum measurement by immunoassays to investigate the pharmacokinetics and antimicrobial coverage. Results: There was no difference between the groups regarding dose, trough level or area under the curve. Coverage against gram-positive pathogens with a minimum inhibitory concentration of 1mg/L occurred in only 46% of patients in both groups. The pharmacokinetics in both groups were altered relative to the reference values, and the groups differed in regard to increased total body clearance and shortening of the biological half-life, which were more pronounced in younger patients. Conclusion: A minimum empirical dose of 60mg/kg per day should be prescribed for pediatric patients in intensive care units with preserved renal function. The use of the ratio between the area under the curve and minimum inhibitory concentration in the evaluation of vancomycin coverage is recommended to achieve the desired outcome, since the pharmacokinetics are altered in these patients, which may impact the effectiveness of the antimicrobial.
- Bioelectrical impedance phase angle and morbidity and mortality in critically ill children (vol 34, pg 163, 2019)(2020) ZAMBERLAN, Patricia; FEFERBAUM, Rubens; DORIA FILHO, Ulysses; CARVALHO, Werther Brunow de; DELGADO, Artur Figueiredo
- Lymphocyte count as a sign of immunoparalysis and its correlation with nutritional status in pediatric intensive care patients with sepsis: A pilot study(2016) MANZOLI, Talita Freitas; DELGADO, Artur Figueiredo; TROSTER, Eduardo Juan; CARVALHO, Werther Brunow de; ANTUNES, Ana Caroline Barreto; MARQUES, Desiree Mayara; ZAMBERLAN, PatriciaOBJECTIVES: Developing malnutrition during hospitalization is well recognized worldwide, and children are at a relatively higher risk for malnutrition than adults. Malnutrition can lead to immune dysfunction, which is associated with a higher mortality rate due to sepsis, the most frequent cause of death in pediatric intensive care units (PICUs). The aim of this study was to investigate whether malnourished patients are more likely to have relative or absolute lymphopenia and, consequently, worse prognoses. METHODS: We enrolled 14 consecutive patients with sepsis whose legal representatives provided written informed consent. Patients were classified as normal or malnourished based on anthropometric measurements. As an additional evaluation of nutritional status, serum albumin and zinc were measured on the 1 st and 7 th days of hospitalization. Lymphocyte count was also measured on the 1 st and 7 th days. Clinicaltrials. gov: NCT02698683. RESULTS: Malnutrition prevalence rates were 33.3% and 42.8% based on weight and height, respectively. Laboratory analyses revealed a reduction of serum albumin in 100% of patients and reduction of zinc in 93.3% of patients. A total of 35% of patients had fewer than 500 lymphocytes/mm(3) on their first day in the PICU. Lymphocyte counts and zinc concentrations significantly increased during hospitalization. CONCLUSIONS: Nutritional evaluations, including anthropometric measurements, were not correlated with lymphocyte counts. Lymphocyte counts concomitantly increased with zinc levels, suggesting that micronutrient supplementation benefits patients with sepsis.
- Is the Obesity Paradox Valid in Pediatric Intensive Care?(2017) ZAMBERLAN, Patricia; DELGADO, Artur Figueiredo; CARVALHO, Werther Brunow de
- Infections in Pediatric Living Donor Transplantation in Undernourished Patients in a Developing Country: Aspects to Consider(2019) RAMOS, Gabriel F.; SANTOS, Maria Lucia M. B.; CARVALHO, Werther Brunow de; DELGADO, Artur Figueiredo
- Fluid Overload: A Question in Pediatric Intensive Care Spotlight?(2016) LUGLIO, Michele; DELGADO, Artur Figueiredo; CARVALHO, Werther Brunow de
- Lipid profiles of children and adolescents with inflammatory response in a paediatric emergency department(2016) MURAMOTO, Giovana; DELGADO, Artur Figueiredo; SOUZA, Eloisa Correa de; GILIO, Alfredo Elias; CARVALHO, Werter Brunow de; MARANHAO, Raul CavalcanteBackground: To compare the lipid profile between patients with and without inflammatory process in according nutritional status, gender and age. Methods: One hundred and twenty-four children and adolescents in the emergency department were separated into two groups according to the levels of C-reactive protein (CRP). Total cholesterol, high-density lipoprotein (HDL) and low-density lipoprotein (LDL), triglycerides (TG) and albumin in patients with CRP < 5 mg/L were compared with patients with CRP >= 5 mg/L. Nutritional status was assessed by anthropometric measurements. Results: Patients were mostly classified as well-nourished (76.5%) and had low levels of HDL (70%). There was no significant difference in lipid profile between the two groups of CRP. Linear regression analysis, however, it became clear that for each increase of 1 mg/L in the values of CRP expected an average reduction of 0.072 mg/dL of HDL, the 0.083 mg/dL of LDL, the 0.002 g/dL albumin and an average increase of 0.564 mg/dL of TG. Conclusions: Patients with an inflammatory process exhibit changes in the serum levels of the lipids HDL, LDL and TG that are related to the degree of inflammation. These changes occurred regardless of nutritional status.
- Proposed recommendations for antithrombotic pro-phylaxis for children and adolescents with severe infection and/or multisystem inflammatory syndrome caused by SARS-CoV-2(2020) CARNEIRO, Jorge David Aivazoglou; RAMOS, Gabriel Frizzo; CARVALHO, Werther Brunow de; JOHNSTON, Cintia; DELGADO, Artur Figueiredo
- Stress Ulcer Prophylaxis Remains a Controversial Management in the PICU(2020) RAMOS, Gabriel F.; LUGLIO, Michele; CARVALHO, Werther Brunow de; DELGADO, Artur Figueiredo