GABRIEL MAYO VIEIRA DE SOUZA

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Agora exibindo 1 - 7 de 7
  • article 0 Citação(ões) na Scopus
    Acute esophageal necrosis (black esophagus) with active upper gastrointestinal bleeding: What to do?
    (2021) RIBEIRO, Igor Braga; LUZ, Gustavo de Oliveira; SOUZA, Gabriel Mayo Vieira de; BOGHOSSIAN, Mateus Bond; MONTE JUNIOR, Epifanio Silvino do; SANTOS, Marcos Eduardo Lera dos; MOURA, Eduardo Guimaraes Hourneaux de
  • article 7 Citação(ões) na Scopus
    Endoscopic management of acute leak after sleeve gastrectomy: principles and techniques
    (2022) MOURA, Diogo Turiani Hourneaux de; FREITAS JUNIOR, Joao Remi de; SOUZA, Gabriel Mayo Vieira de; OLIVEIRA, Guilherme Henrique Peixoto de; MCCARTY, Thomas R.; THOMPSON, Christopher C.; MOURA, Eduardo Guimaraes Hourneaux de
  • article 19 Citação(ões) na Scopus
    Gastrointestinal Manifestations and Associated Health Outcomes of COVID-19: A Brazilian Experience From the Largest South American Public Hospital
    (2020) MOURA, Diogo Turiani Hourneaux de; PROENCA, Igor Mendonca; MCCARTY, Thomas R.; SAGAE, Vitor Massaro Takamatsu; RIBEIRO, Igor Braga; OLIVEIRA, Guilherme Henrique Peixoto de; SOUZA, Gabriel Mayo Vieira de; HIRSCH, Bruno Salomao; SCATIMBURGO, Maria Vitoria Cury Vieira; THOMPSON, Christopher C.; CARRILHO, Flair Jose; CECCONELLO, Ivan; MOURA, Eduardo Guimaraes Hourneaux de
    OBJECTIVES: Brazil has rapidly developed the second-highest number of COVID-19 cases in the world. As such, proper symptom identification, including gastrointestinal manifestations, and relationship to health outcomes remains key. We aimed to assess the prevalence and impact of gastrointestinal symptoms associated with COVID-19 in a large quaternary referral center in South America. METHODS: This was a single-center cohort study in a COVID-19 specific hospital in Sao Paulo, Brazil. Consecutive adult patients with laboratory confirmed SARS-CoV-2 were included. Baseline patient history, presenting symptoms, laboratory results, and clinically relevant outcomes were recorded. Regression analyses were performed to determine significant predictors of the gastrointestinal manifestations of COVID-19 and hospitalization outcomes. RESULTS: Four-hundred patients with COVID-19 were included. Of these, 33.25% of patients reported gastrointestinal symptom. Diarrhea was the most common gastrointestinal symptom (17.25%). Patients with gastrointestinal symptoms had higher rates of concomitant constitutional symptoms, notably fatigue and myalgia (p <0.05). Gastrointestinal symptoms were also more prevalent among patients on chronic immunosuppressants, ACE/ARB medications, and patient with chronic kidney disease (p <0.05). Laboratory results, length of hospitalization, ICU admission, ICU length of stay, need for mechanical ventilation, vasopressor support, and in-hospital mortality did not differ based upon gastrointestinal symptoms (p> 0.05). Regression analyses showed older age [OR 1.04 (95% CI, 1.02-1.06)], male gender [OR 1.94 (95% CI, 1.12-3.36)], and immunosuppression [OR 2.60 (95% CI, 1.20-5.63)], were associated with increased mortality. CONCLUSION: Based upon this Brazilian study, gastrointestinal manifestations of COVID-19 are common but do not appear to impact clinically relevant hospitalization outcomes including the need for ICU admission, mechanical ventilation, or mortality.
  • article 1 Citação(ões) na Scopus
    Endoscopic transgastric cholecystectomy during direct endoscopic necrosectomy for walled-off necrosis of the pancreas
    (2022) SANTOS, Marcos Eduardo Lera dos; RIBEIRO, Igor Braga; PROENCA, Igor Mendonca; SOUZA, Gabriel Mayo Vieira de; MOURA, Diogo Turiani Hourneaux de; MATUGUMA, Sergio Eiji; MOURA, Eduardo Guimaraes Hourneaux de
  • article 7 Citação(ões) na Scopus
    Endoscopic retrograde cholangiopancreatography drainage for palliation of malignant hilar biliary obstruction - stent-in-stent or side-by-side? A systematic review and meta-analysis
    (2021) SOUZA, Gabriel Mayo Vieira de; RIBEIRO, Igor Braga; FUNARI, Mateus Pereira; MOURA, Diogo Turiani Hourneaux de; SCATIMBURGO, Maria Vitoria Cury Vieira; FREITAS JUNIOR, Joao Remi de; SANCHEZ-LUNA, Sergio A.; BARACAT, Renato; MOURA, Eduardo Turiani Hourneaux de; BERNARDO, Wanderley Marques; MOURA, Eduardo Guimaraes Hourneaux de
    BACKGROUND Biliary drainage, either by the stent-in-stent (SIS) or side-by-side (SBS) technique, is often required when treating a malignant hilar biliary obstruction (MHBO). Both methods differ from each other and have distinct advantages. AIM To compare both techniques regarding their efficacy and safety in achieving drainage of MHBO. METHODS A comprehensive search of multiple electronic databases (MEDLINE, Embase, LILACS, BIREME, Cochrane) was conducted and grey literature from their inception until December 2020 with no restrictions regarding the year of publication or language, since there was at least an abstract in English. The included studies compared SIS and SBS techniques through endoscopic retrograde cholangiopancreatography. Outcomes analyzed included technical and clinical success, early and late adverse events (AEs), stent patency, reintervention, and procedure-related mortality. RESULTS Four cohort studies and one randomized controlled trial evaluating a total of 250 patients (127 in the SIS group and 123 in the SBS group) were included in this study. There were no statistically significant differences between the two groups concerning the evaluated outcomes, except for stent patency, which was higher in the SIS compared with the SBS technique [mean difference (d) = 33.31; 95% confidence interval: 9.73 to 56.90, I-2 = 45%, P = 0.006]. CONCLUSION The SIS method showed superior stent patency when compared to SBS for achieving bilateral drainage in MHBO. Both techniques are equivalent in terms of technical success, clinical success, rates of both early and late AEs, reintervention, and procedure-related mortality.
  • article 21 Citação(ões) na Scopus
    Metabolic Effects of Endoscopic Duodenal Mucosal Resurfacing: a Systematic Review and Meta-analysis
    (2021) OLIVEIRA, Guilherme Henrique Peixoto de; MOURA, Diogo Turiani Hourneaux de; FUNARI, Mateus Pereira; MCCARTY, Thomas R.; RIBEIRO, Igor Braga; BERNARDO, Wanderley Marques; SAGAE, Vitor Massaro Takamatsu; FREITAS JR., Joao Remi; SOUZA, Gabriel Mayo de Vieira; MOURA, Eduardo Guimaraes Hourneaux de
    Duodenal mucosal resurfacing (DMR) is an innovative endoscopic bariatric and metabolic therapy (EBMT) emerging in recent years. It uses the duodenum to achieve better glycemic and weight control. This study aimed to evaluate in a critical and systematic way the metabolic effects of this procedure. Electronic searches were performed evaluating the DMR procedure based on predefined inclusion and exclusion criteria. Changes in measured outcomes were evaluated using random-effects models by computing weighted mean differences (MD) and corresponding 95% CIs between pre-and post-procedure metabolic characteristics. Four studies were selected for qualitative and quantitative analysis. DMR demonstrated beneficial glycemic and hepatic metabolic effects among patients with non-insulin dependent type 2 diabetes (T2D) at 3 and 6 months post-procedure.
  • article 3 Citação(ões) na Scopus
    Effects of intragastric balloon placement in metabolic dysfunction-associated fatty liver disease: A systematic review and meta-analysis
    (2021) FREITAS JUNIOR, Joao Remi de; RIBEIRO, Igor Braga; MOURA, Diogo Turiani Hourneaux de; SAGAE, Vitor Massaro Takamatsu; SOUZA, Gabriel Mayo Vieira de; OLIVEIRA, Guilherme Henrique Peixoto de; SANCHEZ-LUNA, Sergio A.; SOUZA, Thiago Ferreira de; MOURA, Eduardo Turiani Hourneaux de; OLIVEIRA, Claudia Pinto Marques Souza de; BERNARDO, Wanderley Marques; MOURA, Eduardo Guimaraes Hourneaux de
    BACKGROUND Metabolic dysfunction-associated fatty liver disease corresponds to a clinical entity that affects liver function triggered by the accumulation of fat in the liver and is linked with metabolic dysregulation. AIM To evaluate the effects of the intragastric balloon (IGB) in patients with metabolic dysfunction-associated fatty liver disease through the assessment of liver enzymes, imaging and several metabolic markers. METHODS A comprehensive search was done of multiple electronic databases (MEDLINE, EMBASE, LILACS, Cochrane and Google Scholar) and grey literature from their inception until February 2021. Inclusion criteria involved patients with a body mass index > 25 kg/m(2) with evidence or previous diagnosis of hepatic steatosis. Outcomes analyzed before and after 6 mo of IGB removal were alanine aminotransferase (IU/L), gamma-glutamyltransferase (IU/L), glycated hemoglobin (%), triglycerides (mg/dL), systolic blood pressure (mmHg), homeostatic model assessment, abdominal circumference (cm), body mass index (kg/m(2)) and liver volume (cm(3)). RESULTS Ten retrospective cohort studies evaluating a total of 508 patients were included. After 6 mo of IGB placement, this significantly reduced alanine aminotransferase [mean difference (MD): 10.2, 95% confidence interval (CI): 8.12-12.3], gamma-glutamyltransferase (MD: 9.41, 95%CI: 6.94-11.88), glycated hemoglobin (MD: 0.17%, 95%CI: 0.03-0.31), triglycerides (MD: 38.58, 95%CI: 26.65-50.51), systolic pressure (MD: 7.27, 95%CI: 4.79-9.76), homeostatic model assessment (MD: 2.23%, 95%CI: 1.41-3.04), abdominal circumference (MD: 12.12, 95%CI: 9.82-14.41) and body mass index (MD: 5.07, 95%CI: 4.21-5.94). CONCLUSION IGB placement showed significant efficacy in improving alanine aminotransferase and gamma-glutamyltransferase levels in patients with metabolic dysfunction-associated fatty liver disease as well as improving metabolic markers related to disease progression.