14,593 results match your criteria: "Hospital de Clínicas Porto Alegre[Affiliation]"

Introduction: Acute kidney injury (AKI) in the setting of COVID-19 is associated with worse clinical and renal outcomes, with limited long-term data.

Aim: To evaluate critically ill COVID-19 patients with AKI that required nephrologist consultation (NC-AKI) in a tertiary hospital.

Methods: Prospective single-center cohort of critically ill COVID-19 adult patients with NC-AKI from May 1st, 2020, to April 30th, 2021.

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Newborn screening in Brazil: realities and challenges.

J Community Genet

January 2025

Laboratório de Hormônios e Genética Molecular-LIM42, Disc de Endocrinologia do Hospital das Clínicas, da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.

Neonatal screening is a critical public health initiative introduced worldwide to detect severe congenital disorders early in life. This study provides an updated overview of public neonatal screening in Brazil, highlighting the transition from initial pilot projects to a robust national program. Through the analysis of recent data up to 2023, we discuss the coverage and regional efficiencies of the program.

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Who gets counted in ADHD clinical trials?

Lancet Psychiatry

January 2025

Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre 05403-903, Brazil; University of São Paulo, São Paulo, Brazil; National Center for Research and Innovation in Mental Health, São Paulo, São Paulo, Brazil. Electronic address:

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α-Ketoisocaproic Acid Disrupts Mitochondrial Bioenergetics in the Brain of Neonate Rats: Molecular Modeling Studies of α-ketoglutarate Dehydrogenase Subunits Inhibition.

Neurochem Res

January 2025

Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.

Brain accumulation of the branched-chain α-keto acids α-ketoisocaproic acid (KIC), α-keto-β-methylvaleric acid (KMV), and α-ketoisovaleric acid (KIV) occurs in maple syrup urine disease (MSUD), an inherited intoxicating metabolic disorder caused by defects of the branched-chain α-keto acid dehydrogenase complex. Patients commonly suffer life-threatening acute encephalopathy in the newborn period and develop chronic neurological sequelae of still undefined pathogenesis. Therefore, this work investigated the in vitro influence of pathological concentrations of KIC (5 mM), KMV (1 mM), and KIV (1 mM) on mitochondrial bioenergetics in the cerebral cortex of neonate (one-day-old) rats.

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Effects of Neuraxial or General Anesthesia on the Incidence of Postoperative Pulmonary Complications in Patients Undergoing Peripheral Vascular Surgery: A Randomized Controlled Trial.

J Cardiothorac Vasc Anesth

December 2024

Programa de Pós-graduação em Ciências Pneumológicas, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.

Objectives: Postoperative complications after major surgery, especially in vascular procedures, are associated with a significant increase in costs and mortality. Postoperative pulmonary complications (PPCs) have a notable impact on morbidity and mortality. The primary aim of this present study was to evaluate the effects of spinal anesthesia compared with general anesthesia on the incidence of PPCs in patients undergoing lower extremity bypass surgery.

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Assessment of COVID-19 incidence after performing pulmonary function tests during the pandemic: Findings from a real-life cohort.

Heart Lung

January 2025

Programa de Pós-Graduação em Ciências Pneumológicas, Universidade Federal do Rio Grande do Sul - Rua Ramiro Barcelos, 2350, Sala 2050, CEP 90035-003, Porto Alegre, RS, Brazil; Unidade de Fisiologia Pulmonar, Hospital de Clínicas de Porto Alegre - Rua Ramiro Barcelos, 2350, Sala 2050, CEP 90035-003, Porto Alegre, RS, Brazil.

Background: Pulmonary function testing (PFT) is paramount in assessing patients with respiratory symptoms and chronic cardiopulmonary diseases. Although seminal studies have demonstrated that PFT generates aerosols, this simple observation does not confirm the potential for enhanced pathogen transmission.

Objective: We aimed to describe the frequency of patients who developed suspected symptoms of COVID-19, prompting SARS-CoV-2 testing after undergoing PFT during the reopening of a laboratory amid the deceleration of the pandemic.

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Given the rate of advancement in predictive psychiatry, there is a threat that it outpaces public and professional willingness for use in clinical care and public health. Prediction tools in psychiatry estimate the risk of future development of mental health conditions. Prediction tools used with young populations have the potential to reduce the worldwide burden of depression.

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Background: Brazil remains one of the 30 countries with the highest tuberculosis (TB) and TB-HIV coinfection burden. Post-TB lung disease (PTLD) is a set of sequelae that can occur in people who have been cured of TB.

Aim: To learn about the experiences of people living with PTLD (PLPTLD) and how healthcare workers (HCW) manage PTLD.

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Introduction: Multicenter research initiatives in Brazilian dialysis centers are scarce. We described the recruitment and implementation phases of the SARC-HD study, aimed at investigating sarcopenia and its impact on adverse clinical outcomes.

Methods: The SARC-HD is a cohort study being conducted with patients on hemodialysis in Brazil.

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Background: Several preoperative pulmonary assessment protocols have been established over the years, but assessments of this magnitude are lacking in the bariatric population. Therefore, the assessment of lung capacity, maximum inspiratory and expiratory pressures, the peak expiratory flow and mobility can be predictors of operative safety and determine the time of hospital discharge.

Objective: To evaluate lung capacity, respiratory muscle strength and level of mobility in the pre, immediate post-operative and hospital discharge of patients undergoing bariatric surgery.

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The objective of this study was to evaluate Brazilian dental researchers' perceptions of research integrity and open science practices, as well as their perceptions of the way researchers are evaluated for promotion, hiring, and receiving grants. In a self-administered online survey, the respondents were presented with 3 questions on researcher evaluation in Brazil. Additionally, for 25 academic activities or characteristics, researchers rated their perceived importance for a) career advancement, b) science advancement, c) personal satisfaction, and d) social impact.

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Oral cancer immunology: state of the art and future perspectives.

Braz Oral Res

January 2025

Universidade Federal do Rio Grande do Sul - UFRS, School of Dentistry, Department of Oral Pathology, Porto Alegre, RS, Brazil.

Oral cancer is a multifactorial disease involving genetic, epigenetic, and environmental factors. The literature indicates that inflammatory cells at the advancing front of the tumor induce a host immune response, preventing the spread of the tumor. However, cancer cells adopt various continued strategies to circumvent this immune surveillance.

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Background: This study evaluated the effectiveness of a virtual reality (VR) high-intensity interval training (HIIT) boxing protocol compared to traditional high-intensity circuit training (HICT) in improving exercise motivation, engagement, and physiological responses among 30 healthy medical students.

Objective: The purpose was to compare the VR HIIT protocol, which involved using an Oculus Quest 2 for a futuristic exoskeleton game experience, with a traditional 12-exercise HICT.

Methods: In total, 30 medical students engaged in both VR HIIT, using an Oculus Quest 2 for a futuristic exoskeleton game experience, and a traditional 12-exercise HICT.

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Background: Prior studies suggest that childhood maltreatment is associated with altered hippocampal volume. However, longitudinal studies are currently scarce, making it difficult to determine how alterations in hippocampal volume evolve over time. The current study examined the relationship between childhood maltreatment and hippocampal volumetric development across childhood and adolescence in a community sample.

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Background: Mechanical thrombectomy (MT) is the standard of care for eligible acute ischemic stroke (AIS) patients with large vessel occlusion (LVO) since 2015.

Aim: Our aim was to determine the key challenges for MT implementation and access worldwide.

Methods: We conducted an international online survey consisting of 37 questions, distributed through the World Stroke Organization network, and as invited by co-authors between December 2022 and March 2023.

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Background/objectives: The effectiveness of COVID-19 vaccine in patients with immune-mediated inflammatory diseases (IMID) depends on the underlying disease, immunosuppression degree and the vaccine regimens. We evaluate the safety and immunogenicity of different COVID-19 vaccine schedules.

Methods: The SAFER study: "Safety and effectiveness of the COVID-19 Vaccine in Rheumatic Disease", is a Brazilian multicentric prospective observational phase IV study in the real-life.

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: Avoidance of ultra-processed foods (UPFs) has been recommended to achieve a healthy diet, but whether it applies equally to all UPFs is uncertain. We evaluated individual UPF subgroups in the prediction of cardiometabolic and mental health outcomes. : The Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) is an occupational cohort study of 15,105 adults (35-74 years) recruited in 2008-2010.

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Lowering low-density lipoprotein cholesterol (LDL-C) to <70 mg/dL is recommended for most patients with diabetes. However, clinical trials investigating subjects with diabetes who are not at high cardiovascular risk are inconclusive regarding the all-cause mortality benefit of the current target, and real-world studies suggest greater mortality. We aimed to assess the all-cause mortality at different LDL-C levels among subjects with diabetes not at high risk and to examine the potential roles of early deaths and frailty for this greater mortality.

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Purpose: To compare voiding parameters in women with and without increased postvoid residual (PVR) volume, to correlate these parameters with PVR volume and PVR percentage, and to describe their ability to predict an increased PVR volume.

Methods: Retrospective cross-sectional study of urodynamics data prospectively acquired from consecutive symptomatic women over a 5-year period. Patients with spinal cord disorders and with abdominal straining during voiding (abdominal pressure ≥10 cm H2O over baseline at maximum flow rate [Qmax]) were excluded.

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Objective: To compare the demographic and clinical profiles of oral lichen planus (OLP) and oral lichenoid lesions (OLL) diagnosed at a reference center in Southern Brazil from 2010 to 2019.

Methods: This retrospective study included 117 cases of suspected OLP submitted for biopsy. Investigated variables comprised sociodemographic profiles, medical history, harmful habits, clinical characteristics, and histopathological features.

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Prognostic evaluation of nutrition risk screening tools in hospitalized adults with normal weight range, overweight, or obesity: A comparative analysis.

JPEN J Parenter Enteral Nutr

January 2025

Department of Nutrition, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.

Background: Many nutrition risk screening tools include low body mass index (BMI). It remains uncertain whether it affects the validity of these tools in patients with overweight or obesity. We aimed to determine the frequency of malnutrition risk and evaluate its association with hospital length of stay in hospitalized adults according to BMI classification.

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Introduction: Carbapenemase-producing Enterobacterales (CPE) is a global threat. We evaluate the prevalence of CPE among isolates categorized as meropenem-susceptible, but that meet the European Committee on Antimicrobial Susceptibility Testing (EUCAST) screening cut-off values for carbapenemase detection, and analyze the susceptibility of these isolates to new available drugs.

Methods: We analyzed 257 isolates from patients hospitalized in a tertiary hospital in Brazil, from July 2022 to April 2023.

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Comparative clinical and incremental cost-effectiveness analysis of treatments for pelvic inflammatory disease in southern Brazil.

Int J Gynaecol Obstet

January 2025

Postgraduate Program in Medicine, Surgical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.

Objective: This paper evaluates the accuracy of C-reactive protein (CRP), leukocyte count, and neutrophil-to-lymphocyte ratio (NLR) for diagnosing tubo-ovarian abscess (TOA) and assessing the cost-effectiveness of different treatment regimens for pelvic inflammatory disease (PID), with and without TOA.

Method: A retrospective cohort study was conducted between January 1, 2003, and December 30, 2021, including women aged 13-80 years diagnosed with PID. The analysis focused on the incremental cost-effectiveness ratio of different treatment regimens.

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