Publications by authors named "Renata Mendes"

The aim of this study was to evaluate cardiorespiratory fitness (CRF) measures, maximal oxygen consumption (VO max), and minute ventilation/carbon dioxide production (V/VCO slope and others) among the T2DM population based on glycated haemoglobin (HBA1c). The present study comprised a cross-sectional design, with two groups, based on HbA1c values (≤7 and ≥7.1).

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Background: The Duke Activity Status Index (DASI) questionnaire has been the focus of numerous investigations - its discriminative and prognostic capacity has been continuously explored, supporting its use in the clinical setting, specifically during rehabilitation in patients with chronic heart failure (CHF).However, studies exploring optimal DASI questionnaire threshold scores are limited.

Objective: To investigate optimal DASI questionnaire thresholds values in predicting mortality in a CHF cohort and assess mortality rates based on the DASI questionnaire using a thresholds values obtained.

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  • * It discusses serious health issues like anti-GBM disease and acute respiratory distress syndrome (ARDS), explaining how inflammation can hurt both the lungs and kidneys.
  • * The review also mentions new treatments like stem cells that might help protect these organs, and it suggests that doctors should think about both lungs and kidneys when treating very sick patients.
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Objective: To investigate the effects of implementing early multiprofessional mobilization on quality indicators of intensive care in Brazil.

Design: This is a retrospective cohort study.

Setting: A Brazilian educational and research-intensive care unit (ICU).

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Introduction: Coexistence of chronic obstructive pulmonary disease(COPD) and heart failure(HF) is associated with systemic inflammation, myocardial injury, and arterial stiffening, impacting cardiovascular risk and prognosis in patients. Arterial stiffness, reduced nitric oxide synthesis, and altered cardiac autonomic control further link COPD and HF pathophysiology, emphasizing the need for comprehensive cardiovascular assessment.

Objective: To investigate a cardiovascular profile in patients hospitalized with exacerbation COPD(ECOPD) in coexistence with HF compared with isolated diseases.

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  • - The study aimed to analyze the genetic makeup and antimicrobial resistance, particularly related to β-lactam antibiotics, in Acinetobacter baumannii isolates from a hospital in Recife, Brazil, after the COVID-19 pandemic.
  • - A variety of methods, including PCR and sequencing, were used to identify resistance genes and assess genetic diversity, revealing high resistance levels and the presence of new β-lactamase genes in the isolates.
  • - The findings highlight the urgent need for improved infection control and antimicrobial stewardship to combat the rise of multidrug-resistant bacteria.
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  • COPD is linked to impaired lung function, muscle weakness, and exercise intolerance, which can worsen patient outcomes, yet how these factors collectively affect prognosis remains unclear.
  • A study of 79 patients with severe to very severe COPD found that low levels of inspiratory and expiratory muscle strength (defined as MIP ≤55 and MEP ≤80 cmH2O) significantly increase the risk of mortality over 42 months.
  • Combining these muscle strength measures with other prognostic tools like FEV, V̇O2, and 6MWD enhances the accuracy of mortality risk assessment in COPD patients.
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(1) Background: An elevated wrist circumference may indicate excess weight and cardiometabolic risk. The present study aims to identify wrist circumference cutoff points (WrC) to determine excess weight levels and predict cardiometabolic risk in adults. (2) Methods: A cross-sectional study was conducted with adults aged 20 to 59 years old, attending the outpatient clinic at University Hospital/Federal University of Sergipe HU/UFS-EBSERH.

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  • The study examined whether awake-prone positioning (APP) during COVID-19 could lower intubation rates, death rates, and hospital length of stay (HLOS).
  • It involved a retrospective review of 115 non-mechanically ventilated patients in Brazil and found no significant difference in outcomes between APP and awake-not-prone positioning (ANPP) groups.
  • A systematic review of 86 articles supported these findings, showing that APP did not significantly improve clinical outcomes across different income-level countries.
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Background: The management of COPD has been based on the premise of identifying problems that guide personalised treatment based on a multidimensional assessment, known as treatable traits. Exacerbation of COPD (ECOPD) results in physical and functional impairments, limitation of daily activities and negative impact on patients' quality of life and prognosis. In this context, identifying treatable traits in patients with ECOPD is essential to properly guide individualised patient care.

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Spontaneous rupture of the patellar (PTR) and quadriceps (QTR) tendon is infrequent. Systemic diseases such as diabetes mellitus, CKD, and secondary hyperparathyroidism (SHPT) are risk factors. The present cohort study aimed to evaluate risk factors associated with tendon rupture in hemodialysis (HD) patients with SHPT, as well as outcomes including surgical complications, re-ruptures, and fracture.

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Objectives: We aimed to develop a reverse transcription loop-mediated isothermal amplification (RT-LAMP) platform for the rapid detection of chikungunya virus (CHIKV) in both patient and mosquito samples from Brazil.

Methods: We optimized an RT-LAMP assay and then evaluated the specificity and sensitivity using visual detection. In comparison with the RT-qPCR reference method, we validated the utility of this assay as a molecular diagnostic test in a reference laboratory for arbovirus diagnostics using 100 serum samples collected from suspected CHIKV cases.

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  • Rates of mortality and re-admission for patients with COPD after hospitalizations remain high, prompting the need for better inhaler selection and management upon discharge to reduce these risks.
  • A study was designed to create a practical inhaler selection tool for clinicians to use prior to discharge and assess its impact on medication prescriptions and patient outcomes.
  • The inhaler selection tool was successfully developed through clinician and patient feedback, and consensus was reached on the minimum clinically important differences for re-admissions and mortality rates following exacerbations of COPD.
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The six-minute step test (6MST) has been shown to be effective in assessing exercise capacity in individuals with COPD regardless of severity and, despite its easy execution, accessibility and validity, information on the prognostic power of this test remains uncertain. The aim of this study is to investigate whether the 6MST can predict the occurrence of exacerbations in patients with COPD. This is a prospective cohort study with a 36-month follow-up in patients with COPD.

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Background: Prediabetes (PD) is defined as impaired fasting glucose and/or impaired glucose tolerance (IGT) and may be associated with high risk of cardiovascular injury. It is recommended that PD patients be screened for signs of arterial stiffness and cardiovascular injury to reinforce therapeutic strategies.

Objectives: To identify pulse wave velocity values discriminative for arterial stiffness and cardiovascular injury in PD patients.

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This work presents a biosensor based on core-shell nanostructure formed by zinc oxide (ZnO) nanoparticles coated with gold (Au). The core-shell nanostructure served as a support for the immobilisation of tyrosinase on screen-printed carbon electrodes to measure dopamine using differential pulse voltammetry. While ZnO is a semiconductor with good electrical conductivity, Au offers high stability and biocompatibility, which is beneficial for maintaining enzyme activity.

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Objective: To translate and cross-culturally adapt the COPD in Low- and middle-income countries (LMICs) Assessment (COLA) questionnaire into Brazilian Portuguese, a case-finding instrument for chronic obstructive pulmonary disease (COPD).

Methods: Translation and cross-cultural adaptation were completed in six steps: the original version was translated into Brazilian Portuguese by two native speakers of the target language; the translated versions were synthesized; back-translation was performed by two native speakers of the original language; the back-translation and the Brazilian Portuguese version of the COLA were reviewed and harmonized by an expert committee of specialists; and, then, the pre-final version was tested by 30 health professionals who were asked if the items were clear to understand. The acceptability, clarity, and understandability of the translated version were evaluated.

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The result of the movement restrictions during the COVID-19 pandemic was an impromptu and abrupt switch from in-person to online teaching. Most focus has been on the perception and experience of students during the process. The aim of this international survey is to assess staffs' perspectives and challenges of online teaching during the COVID-19 lockdown.

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SARS-CoV-2 is a matter of concern. Here, biosensors were prepared using iron magnetic nanoparticles containing antibodies against the receptor binding domain (RBD) of the spike protein. Antibodies were adsorbed to nanoparticles in three configurations, including direct adsorption without functionalization (DANPs).

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Objective: To investigate clinicians' perspectives on the current use of wearable technology for detecting COPD exacerbations, and to identify potential facilitators and barriers to its adoption in clinical settings.

Methods: A mixed-method survey was conducted through an online survey platform involving clinicians working with COPD patients. The questionnaires were developed by an expert panel specialising in respiratory medicine at UCL.

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Article Synopsis
  • Hospitalized patients with exacerbations of COPD often experience reduced physical function, making it essential to identify and measure their functional impairments for effective rehabilitation.
  • A systematic review was conducted using standardized measurement criteria, resulting in the inclusion of 13 studies that evaluated nine different outcome measures for assessing functionality in these patients.
  • The findings indicated insufficient evidence for some measures' validity and responsiveness, highlighting a need for more robust assessment tools to effectively monitor and improve functionality in this patient population.
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Chronic obstructive pulmonary disease (COPD) is a prevalent and burdensome condition in low- and middle-income countries (LMICs). Challenges to better care include more effective diagnosis and access to affordable interventions. There are no previous reports describing therapeutic needs of populations with COPD in LMICs who were identified through screening.

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Background: Weber classification stratifies cardiac patients based on peak oxygen consumption (V̇O), the gold-standard measure of exercise capacity.

Objective: To determine if Weber classification is a useful tool to discriminate clinical phenotypes in COPD patients and to evaluate if disease severity and other clinical measures can predict V̇O.

Methods: Three hundred and six COPD patients underwent cardiopulmonary exercise testing (CPX) and were divided according to Weber class: 1) Weber A (n = 34); 2) Weber B (n = 88); 3) Weber C (n = 138); and 4) Weber D (n = 46).

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Background: Individuals with COPD have an imbalance of cardiac autonomic control. In this context, HRV is considered an important tool for assessing cardiac sympathetic and parasympathetic balance, however it is a dependent evaluator measure and subject to methodological biases that may compromise the interpretation of results.

Objective: This study examines the inter- and intrarater reliability of HRV parameters derived from short-term recordings in individuals with COPD.

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