Ronaldo B. Santos

ORCID: 0000-0003-4047-6583
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Obstructive Sleep Apnea Research
  • Sleep and related disorders
  • Sleep and Work-Related Fatigue
  • Neuroscience of respiration and sleep
  • Sleep and Wakefulness Research
  • Cardiovascular Health and Disease Prevention
  • Health and Lifestyle Studies
  • Cardiovascular Health and Risk Factors
  • Respiratory Support and Mechanisms
  • Liver Disease and Transplantation
  • Intensive Care Unit Cognitive Disorders
  • Transplantation: Methods and Outcomes
  • Parasites and Host Interactions
  • Cardiovascular and Diving-Related Complications
  • Healthcare Regulation
  • Mechanical Circulatory Support Devices
  • Psychological Well-being and Life Satisfaction
  • Public Health in Brazil
  • Cancer, Lipids, and Metabolism
  • Youth, Drugs, and Violence
  • Cardiac Health and Mental Health
  • Lipoproteins and Cardiovascular Health
  • Workplace Health and Well-being
  • Healthcare during COVID-19 Pandemic
  • Inclusion and Disability in Education and Sport

Universidade de São Paulo
2002-2025

Hospital Universitário da Universidade de São Paulo
2014-2024

Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
2021-2023

Hospital São Paulo
2023

Hospital do Coração
2023

Universidade Cidade de São Paulo
2021-2022

Instituto do Sono
2022

Instituto de Saúde
2020

Fundação Oswaldo Cruz
2019

Hospital das Clínicas da Universidade Federal de Pernambuco
2011

Sedation overuse is frequent and possibly associated with poor outcomes in the intensive care unit (ICU) patients. However, association of early oversedation clinical has not been thoroughly evaluated. The aim this study was to assess sedation strategies critically ill adult patients under mechanical ventilation (MV). A secondary analysis a multicenter prospective cohort conducted 45 Brazilian ICUs, including requiring ventilatory support first 48 hours ICU admissions, performed. depth...

10.1186/cc13995 article EN cc-by Critical Care 2014-07-21

Polygraphy (PG) is an attractive alternative for diagnosing obstructive sleep apnea (OSA) in patients with high pre-test probability. However, several may not present typical symptoms. In this scenario, it unclear the performance of PG OSA non-referred populations to laboratories.Data from participants ELSA-Brasil cohort were used analysis. We performed overnight home (Embletta GoldTM) synchronized a wrist actigraphy (Actiwatch model 2TM). The validation strategy comprised three scorings...

10.5935/1984-0063.20190072 article EN cc-by-nc-nd Sleep Science 2019-06-01

Insufficient/irregular sleep patterns are common conditions, but their cardiovascular consequences and strategies to minimize these risks poorly explored. We aimed determine whether weekend extension (catch-up sleep) social jetlag may impact the incidence of subclinical atherosclerosis. performed a 7-day wrist actigraphy in this cohort study monitor parameters. Coronary artery calcium (CAC) was measured at two different time points. Catch-up-sleep by calculating minus weekday duration....

10.1093/sleep/zsaf039 article EN SLEEP 2025-02-13

A gestão de resíduos químicos da Faculdade Engenharia Alimentos (FEA) UNICAMP é uma ação grande complexidade que conta com a colaboração ativa membros comunidade local, os quais constituem Comissão Gestão Resíduos (CGR). Essa atividade assistida por órgãos externos à FEA, como o escritório Ambiental e (GEARE), qual incumbido fiscalizar promovida pela CGR. CGR debruça-se na constante atualização planilhas complexas permitem realizar rastreio origem dos identificando também natureza destes...

10.20396/saberes.v4i00.20362 article PT Deleted Journal 2025-03-12

Introdução: diagnóstico tardio, que resultam em incapacidades físicas graves. A identificação precoce da doença é crucial para interromper sua cadeia de transmissão, sendo a atenção primária à saúde fundamental nesse processo. Os profissionais enfermagem desempenham papel central na vigilância e controle hanseníase, embora enfrentem diversos obstáculos no cotidiano das unidades saúde. Objetivo: Investigar os desafios contemporâneos hanseníase Brasil examinar o dos promoção epidemiológico...

10.36557/2674-8169.2025v7n5p797-820 article PT Brazilian Journal of Implantology and Health Sciences 2025-05-16

To evaluate the associations of sleep irregularity with hypertension (HTN) and blood pressure (BP) levels.Adult participants from ELSA-Brasil performed a clinical evaluation including objective duration (actigraphy), insomnia, study for defining obstructive apnoea (OSA). quantify irregularity, we used two parameters obtained through actigraphy: 7-day standard deviation (SD) SD sleep-onset timing. A multivariate analysis was to determine independent HTN SBP/DBP values.We studied 1720 (age 49...

10.1097/hjh.0000000000003392 article EN Journal of Hypertension 2023-02-13

Obstructive sleep apnea (OSA) is highly prevalent, and positive airway pressure (PAP) therapy the primary treatment. This study aimed to assess diagnostic PAP treatment resources for OSA within Brazil's Unified Health System identify potential inequalities gaps.

10.5664/jcsm.10976 article EN Journal of Clinical Sleep Medicine 2024-01-03

Schistosomiasis mansoni is a fibrogenic liver disease that constitutes major health problem in north–eastern Brazil. Although one common manifestation of the disease, periportal fibrosis (PPF), can be assessed by ultrasonography well-trained physicians, necessary equipment and personnel are not always readily available. Serum markers, including hyaluronic acid (HA), have been used as alternative means measuring fibrosis. Recently serum concentrations HA evaluated 77 Brazilians (61 cases...

10.1179/136485911x12987676649629 article EN Annals of Tropical Medicine and Parasitology 2011-04-01

Rationale: Excessive sodium may have a role in the pathogenesis of obstructive sleep apnea (OSA) for patients with hypervolemic conditions, but it is unclear whether this valid all OSA, including those no significant comorbidities.Objectives: To test association urinary and OSA large sample participants from ELSA-Brasil (Estudo Longitudinal de Saúde do Adulto-Brasil) Study. In addition, we stratified analysis according to presence hypertension.Methods: cross-sectional study, was defined by...

10.1513/annalsats.202005-498oc article EN Annals of the American Thoracic Society 2020-10-22

Every one-hour change in sleep duration (SDUR) has a dose-response impact on cardiovascular disease and mortality. However, self-reported SDUR may not represent the real time significant proportion of adult population. This study was designed to determine frequency potential under/overestimation when comparing subjective versus objective data. Consecutive adults from ELSA-Brasil collected underwent wrist actigraphy for seven days. We defined underestimation (underSDUR) overestimation...

10.1016/j.sleepe.2021.100013 article EN cc-by Sleep Epidemiology 2021-11-03

Increased arterial stiffness is independently associated with cardiovascular risk. Obstructive sleep apnea (OSA) and duration (SDUR) may contribute to increased stiffness, but it unclear whether this association modulated by gender. We aimed evaluate the potential impact of gender in modulating OSA SDUR stiffness. Participants from ELSA-Brasil study performed assessments portable polygraph define severity 1-week wrist actigraphy. Pulse wave velocity (PWV) was measured using a standard...

10.1177/00033197231193618 article EN Angiology 2023-09-09

Summary Sleep disturbances often co‐exist, which challenges our understanding of their potential impact on cognition. We explored the cross‐sectional associations insomnia and objective measures sleep with cognitive performance in Brazilian Longitudinal Study Adult Health (ELSA‐Brasil) study stratified by middle‐aged older adults. Participants aged ≥55 years underwent evaluations, polygraphy for 1 night, actigraphy 7 days. Insomnia was evaluated using Clinical Interview Scheduled Revised....

10.1111/jsr.13659 article EN Journal of Sleep Research 2022-05-29

Portopulmonary hypertension syndrome (PPHS) is a complication of portal where the substrate micro-vessel lesions which are indicative plexogenic arteriopathy. PPHS has not been linked to pulmonary schistosomiasis. We report, best our knowledge for first time, case associated with schistosomiasis mansoni.

10.1016/s0035-9203(02)90381-0 article EN Transactions of the Royal Society of Tropical Medicine and Hygiene 2002-07-01
Coming Soon ...