Publications by authors named "Luiz Ronir Raggio"

Objective: To compare the efficacy of silver diamine fluoride (SDF) and atraumatic restorative treatment (ART) in arresting caries lesions. Variables such as treatment time, adverse effects/parental aesthetic perception, anxiety and patients' behavior were also evaluated.

Materials And Methods: Children (3.

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Objective: Weight regain is a common outcome of weight loss interventions. Mental health-related comorbidities, among other factors, can mediate weight regain regardless of the implemented treatment modality. This study explores whether postoperative psychopathological comorbidities are associated with weight regain after bariatric surgery.

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Background: Noncommunicable diseases contribute to premature deaths and limitations. Disability retirement is linked to chronic conditions, particularly cardiovascular diseases. The II Brazilian Guideline for Severe Heart Disease established criteria for cardiovascular disease classification.

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Objective: To analyse hospital case fatality and mortality related to Chagas disease (CD) in Brazil, 2000-2019.

Method: This is a mixed ecological study with spatial and temporal trends, based on national population data from the Brazilian Ministry of Health - hospital admissions (HA) and death certificates (DC). Records with CD as a primary or secondary cause of death in HA and/or as an underlying or associated cause of death in DC were evaluated.

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Background/objectives: Chronic pancreatitis (CP) is a progressive inflammatory disorder associated with marked morbidity and mortality and frequently requires hospitalization. This study aimed to investigate the time trends and geographical distribution of hospital admissions, the lethality rate of CP across Brazil, and the potential relationship with social indicators and associated risk factors.

Methods: Data were retrospectively obtained from the Brazilian Public Health System Registry between January 2009 and December 2019.

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Background: Mesenchymal stem cell infusion and vitamin D supplementation may have immunomodulatory actions that could prolong the preservation of residual insulin secretion in patients with type 1 diabetes (T1D). Intervention with these agents after onset of T1D could favor the development of a remission phase, with potential clinical impact. We aimed to compare the presence of clinical remission (CR), glycemic control and daily insulin requirement at 6, 12, 18, 24 and 36 months after the diagnosis of T1D using IDAA1c in patients who received therapy with adipose tissue-derived mesenchymal stem cell (ASC) infusion and vitamin D supplementation and a control group.

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Article Synopsis
  • The study investigates the impact of Fontan circulation on cardiac and liver health, focusing on increased systemic venous pressure leading to specific disease conditions.
  • Thirty-eight Fontan patients and 23 control subjects underwent advanced MRI to assess cardiac and liver fibrosis and cardiac remodeling, revealing significant differences in various measured parameters between the two groups.
  • Results indicate a strong correlation between cardiac and liver health markers, suggesting that MRI could be crucial for monitoring and improving treatment strategies in these patients to potentially avoid the need for dual organ transplants.
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This article aims to describe the geographical distribution of hospital mortality from COVID-19 in children and adolescents during the 2020-2021 pandemic in Brazil. Ecological, census study (SIVEP GRIPE) with individuals up to 19 years of age, hospitalized with SARS due to COVID-19 or SARS not specified in Brazilian municipalities, stratified in two ways: 1) in the five macro-regions and 2) in three urban agglomerations: capital, municipalities of the metropolitan region and non-capital municipalities. There were 44 hospitalizations/100,000 inhabitants due to COVID-19 and 241/100,000 when including unspecified SARS (estimated underreporting of 81.

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: Steatotic liver disease (SLD) has been linked to more exacerbated inflammatory responses in various scenarios. The relationship between SLD and COVID-19 prognosis remains unclear. Our aim was to investigate the impact of SLD on the outcome of COVID-19.

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Purpose: To assess liver and spleen characteristics of a population with Gaucher disease (GD) using multiparametric MRI and MR elastography (MRE) for evaluation of diffuse liver and spleen disease, which includes liver fat fraction, liver and spleen volume and iron deposition, and liver and spleen stiffness correlated with DS3 Severity Scoring System for Gaucher disease (GD-DS3).

Methods: We prospectively evaluated 41 patients with type 1 Gaucher disease using a 3.0 T MRI and MRE between January 2019 and February 2020.

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  • - The study aimed to evaluate cardiovascular risk factors (CRF) in adolescents aged 10-19, focusing on the impact of social vulnerability, which was determined by lack of access to basic resources like clean water and adequate income.
  • - A total of 517 adolescents participated, with data collected on their physical activity, food intake, and various health measurements, revealing that 32.4% were overweight and over half were physically inactive during leisure time.
  • - Findings indicated that socially vulnerable adolescents generally had lower body measurements and risk factors compared to non-vulnerable peers, but both groups displayed elevated cholesterol levels, suggesting that social vulnerability does not necessarily correlate with increased CRF.
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  • Facial nerve dysfunction is a common and serious issue for patients who have undergone parotidectomy, a surgery to remove the parotid gland.
  • A study comparing rehabilitation outcomes for patients with benign versus malignant neoplasms showed both groups experienced significant improvements in facial function through early, tailored physiotherapy.
  • Factors like previous surgeries and age over 60 were linked to more severe dysfunction and poorer outcomes, but overall, both types of neoplasms benefited similarly from the rehabilitation program.
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Background:  Facial nerve dysfunction is the principal postoperative complication related to parotidectomy.

Objective:  To test the hypothesis that the modified Sunnybrook Facial Grading System (mS-FGS) is superior to the original S-FGS in the assessment of facial nerve function following parotidectomy.

Methods:  Prospective, longitudinal study evaluating patients with primary or metastatic parotid neoplasms undergoing parotidectomy with facial nerve-sparing between 2016 and 2020.

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In 1973, the National Rabies Program was created in Brazil through an agreement between the Ministry of Health and Agriculture. Since its beginning, it developed integrated action through access to free post-exposure prophylaxis (PEP) for people at risk, dog vaccination campaigns, a joint surveillance system, and awareness. This study aims to describe human rabies in Brazil under the One Health perspective in recent decades, including achievements in the control of dog-mediated cases and challenges in human cases transmitted by wild animals.

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Objective: To describe cases, deaths, and hospital mortality from covid-19 in children and adolescents in Brazil, according to age group, during the evolving phases of the pandemic in 2020 and 2021.

Methods: Census of patients aged up to 19 committed with severe acute respiratory syndrome, due to covid-19 or unspecified, notified to the Brazilian Influenza Epidemiological Surveillance Information System, from January 1, 2020, to December 31, 2021. The two years were divided into six phases, covering the spread of the disease-first, second and third wave-as well as the impact of vaccination.

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Objective: Food intake during binge eating episodes (BEE) has been found to be associated with symptoms of depression and anxiety in individuals with eating disorders (EDs). The objective of this study was to evaluate the association between caloric intake during BEE and psychopathology in individuals with binge eating spectrum disorders (BSD).

Methods: One-hundred and fourteen outpatients diagnosed with bulimia nervosa (BN) and binge eating disorder (BED) were sequentially assessed.

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To evaluate safety and therapeutic effect along 12 months of allogenic adipose tissue-derived stromal/stem cells (ASCs) transplantation with cholecalciferol (VITD) in patients with recent-onset type 1 diabetes (T1D). Prospective, phase II, open trial, pilot study in which patients with recent onset T1D received ASCs (1xKgx10 cells) and VITD 2000UI/day for 12 months (group 1) and were compared to controls with standard insulin therapy (group 2). Adverse events, C-peptide area under the curve (CPAUC), insulin dose, HbA1c and frequency of FoxP3+ in CD4+ or CD8+ T-cells(flow cytometry) were evaluated at baseline(T0), after 3(T3), 6(T6) and 12 months(T12).

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 The acoustic analysis of speech (measurements of the fundamental frequency and formant frequencies) of different vowels produced by speakers with the Angle class II, division 1, malocclusion can provide information about the relationship between articulatory and phonatory mechanisms in this type of maxillomandibular disproportion.  To investigate acoustic measurements related to the fundamental frequency (F0) and formant frequencies (F1 and F2) of the oral vowels of Brazilian Portuguese (BP) produced by male speakers with Angle class II, division 1, malocclusion (study group) and compare with men with Angle class I malocclusion (control group).  In total, 60 men (20 with class II, 40 with class I) aged between 18 and 40 years were included in the study.

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Objectives: To evaluate MRI with gadoxetic acid to quantify liver function in cirrhotic patients using the relative enhancement index (REI) compared with Child-Pugh score (CPS), MELD score, and indocyanine green plasma disappearance rate (ICG-PDR) and to establish cutoffs for REI to stratify cirrhotic patients into good and poor liver function groups.

Methods: We prospectively evaluated 60 cirrhotic patients and calculated CPS, MELD score, ICG-PDR, and REI for each patient. Spearman's correlation coefficient was used to assess correlation between REI, CPS, MELD, and ICG-PDR.

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Despite recent advances in the field, the association between subsyndromal delirium (SSD) in the ICU and poor outcomes is not entirely clear. We performed a retrospective multicentric observational study analyzing mental status during the first 72 h of ICU stay. Of the 681 patients included, SSD occurred in 22.

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Article Synopsis
  • The incidence of hepatocellular carcinoma (HCC) is rising in Brazil, with a significant increase in hospitalizations from 2005 to 2018, particularly among individuals over 50, especially males over 70.
  • The geographic distribution showed the highest prevalence in the South and Southeast but a notably higher proportional increase in the Northeast, particularly in non-metropolitan areas.
  • While the lethality rate for HCC has remained stable between 21% and 25%, this stability contrasts with rising hospitalization rates, indicating potential shifts in environmental and socioeconomic factors affecting health in Brazil.
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Mercury (Hg) is a toxic substance, and fish consumption is one of the main sources of exposure for the population. This article aims to evaluate the association between exposure to Hg and anemia among children and adolescents from six riverside communities in the Brazilian Amazon. Secondary data analysis from cross-sectional studies, including 1,318 individuals, divided into two groups according to gold mining exposure (group A under the influence, and group B without it).

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Article Synopsis
  • The PIPA Project is a birth cohort study in Rio de Janeiro that investigated toxic metal concentrations in maternal and umbilical cord blood of infants to understand their impact on neurodevelopment.* -
  • The study found that all tested samples contained detectable levels of arsenic, cadmium, lead, and mercury, with higher lead levels noted in premature newborns and significant arsenic levels in the infants who showed developmental delays.* -
  • Results showed a concerning correlation between higher maternal blood arsenic levels and neurodevelopmental issues in infants, highlighting the need for more research on the effects of prenatal metal exposure.*
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Introduction: during functional respiratory assessments. The new digital peak flow meter (DPM) evaluates the forced expiratory volume in the first second (FEV) and PEF.

Objective: To compare lung function measurements using spirometry and DPM.

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Background And Aim: FAST score has a good performance for diagnosing the composite of NASH + NAS ≥ 4 + F ≥ 2. However, it has not been evaluated in Latin American individuals with nonalcoholic fatty liver disease (NAFLD). We aimed to analyze the performance of the FAST score in a Brazilian NAFLD population.

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