(Fonte: Lattes)
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Instituto Central, Hospital das Clínicas, Faculdade de Medicina - Médico

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Agora exibindo 1 - 10 de 46
  • conferenceObject
    Extreme Endoscopic Treatment for Gastric Bypass Anastomosis Disconnection
    (2017) MOURA, Eduardo G. de; MINATA, Mauricio K.; SANTOS, Marcos E. dos; MOURA, Diogo T. de; CLEMENTE JUNIOR, Cesar C. de; MATUGUMA, Sergio E.; SANTO, Marco Aurelio
  • article 111 Citação(ões) na Scopus
    Narrow band imaging versus lugol chromoendoscopy to diagnose squamous cell carcinoma of the esophagus: a systematic review and meta-analysis
    (2017) MORITA, Flavio Hiroshi Ananias; BERNARDO, Wanderley Marques; IDE, Edson; ROCHA, Rodrigo Silva Paula; AQUINO, Julio Cesar Martins; MINATA, Mauricio Kazuyoshi; YAMAZAKI, Kendi; MARQUES, Sergio Barbosa; SAKAI, Paulo; MOURA, Eduardo Guimaraes Hourneaux de
    Background: In the early stage esophageal cancer, changes in the mucosa are subtle and pass unnoticed in endoscopic examinations using white light. To increase sensitivity, chromoscopy with Lugol's solution has been used. Technological advancements have led to the emergence of virtual methods of endoscopic chromoscopy, including narrow band imaging (NBI). NBI enhances the relief of the mucosa and the underlying vascular pattern, providing greater convenience without the risks inherent to the use of vital dye. The purpose of this systematic review and meta-analysis was to evaluate the ability of NBI to diagnose squamous cell carcinoma of the esophagus and to compare it to chromoscopy with Lugol's solution. Methods: This systematic review included all studies comparing the diagnostic accuracy of NBI and Lugol chromoendoscopy performed to identify high-grade dysplasia and/or squamous cell carcinoma in the esophagus. In the meta-analysis, we calculated and demonstrated sensitivity, specificity, and positive and negative likelihood values in forest plots. We also determined summary receiver operating characteristic (sROC) curves and estimates of the areas under the curves for both per-patient and per-lesion analysis. Results: The initial search identified 7079 articles. Of these, 18 studies were included in the systematic review and 12 were used in the meta-analysis, for a total of 1911 patients. In per-patient and per-lesion analysis, the sensitivity, specificity, and positive and negative likelihood values for Lugol chromoendoscopy were 92% and 98, 82 and 37%, 5.42 and 1.4, and 0.13 and 0.39, respectively, and for NBI were 88 and 94%, 88 and 65%, 8.32 and 2.62, and 0.16 and 0.12, respectively. There was a statistically significant difference in only specificity values, in which case NBI was superior to Lugol chromoendoscopy in both analyses. In the per-patient analysis, the area under the sROC curve for Lugol chromoendoscopy was 0.9559. In the case of NBI, this value was 0.9611; in the per-lesion analysis, this number was 0.9685 and 0.9587, respectively. Conclusions: NBI was adequate in evaluating the esophagus in order to diagnose high-grade dysplasia and squamous cell carcinoma. In the differentiation of those disorders from other esophageal mucosa alterations, the NBI was shown to be superior than Lugol.
  • article
    Endoscopic polymer injection and endoluminal plication in treatment of gastroesophageal reflux disease: evaluation of long-term results
    (2018) MOURA, Eduardo Guimaraes Hourneaux De; SAIIUM, Rubens A. A.; NASI, Ary; CORONEL, Martin; MOURA, Diogo Turiani Hourneaux De; MOURA, Eduardo Turiani Hourneaux De; MINATA, Mauricio Kazuyoshi; CURY, Marcelo; FALCAO, Angela; CECCONELLO, Ivan; SAKAI, Paulo
    Background and study aims Us of proton pump inhibitors (PPIs) has made endoscopic treatment of gastroesophageal reflux disease (GERD) more efficient, with reduction in morbidity and complications. However, some patients persist with symptoms despite medical treatment and some are not compliant with it or cannot afford it for financial reasons, and thus they require non-pharmacological therapeutic options such as surgical fundoplication. Surgery may be effective in the short term, but there is related morbidity and concern about its long-term efficacy. The possibility of minimally invasive endoluminal surgeries has resulted in interest in and development of newly endoscopic devices. Good short-term results with surgical fundoplication lack of studies of is with long follow-up justify our interest in this study. The aim of this study was to investigate the efficacy of endoscopic polymer injection and endoluminal full-thickness plication in the long-term control of GERD. Patients and methods Forty-seven patients with GERD who underwent an endoscopic procedure were followed up for 60 months and evaluated for total response (RT), partial response (RP) and no response (SR) to endoscopic treatment with reintroduction of PPIs. Results Twenty-one patients received polymer injection (G0) and 26 endoluminal plication (G1). The number of patients with no response to endoscopic treatment with reintroduction of PPIs increased in time for both techniques (G0 P = 0.006; G1 P < 0.001). There was symptomatic improvement up to 12 months, with progressive loss of this trending up to 60 months in G0 and G1 (P < 0.001). Health-related quality of life score (GERD-HRQL) demonstrated TR in G0 and G1 at 1, 3, 6 and 12 months. The 60-month analysis showed an increased number of patients with SR in both groups. The quality of life assessment (SF-36) showed benefit in G0 up to 3 months. G0 showed a higher rate of complications. There were no deaths. There was healing of esophagitis at 3 months in 45 % of patients in G0 and 40 % in G1. There was no improvement in manometric or pH findings. Conclusion Endoscopic therapies were ineffective in controlling GERD in the long term.
  • article 11 Citação(ões) na Scopus
    Suction versus slow-pull for endoscopic ultrasound-guided fine-needle aspiration of pancreatic tumors: a prospective randomized trial
    (2020) CHENG, Spencer; BRUNALDI, Vitor O.; MINATA, Mauricio K.; CHACON, Danielle A.; SILVEIRA, Eduardo B.; MOURA, Diogo T. H. de; SANTOS, Marcos E. L. Dos; MATUGUMA, Sergio E.; CHAVES, Dalton M.; FRANCA, Raony F.; JACOMO, Alfredo L.; ARTIFON, Everson L. A.
    Background: Suction (S) is commonly used to improve cell acquisition during endoscopic ultrasoundguided fine-needle aspiration (EUS-FNA). Slow-pull (SP) sampling is another technique that might procure good quality specimens with less bloodiness. We aimed to determine if SP improves the diagnostic yield of EUS-FNA of pancreatic masses. Methods: Patients with pancreatic solid masses were randomized to four needle passes with both techniques in an alternate fashion. Sensitivity, specificity, positive, and negative predictive values were calculated. Cellularity and bloodiness of cytological samples were assessed and compared according to the technique. Results: Sensitivity, specificity, and accuracy of suction vs. SP were 95.2% vs. 92.3%; 100% vs. 100; 95.7% vs. 93%, respectively. As to the association of methods, they were 95.6, 100 and 96%, respectively. Positive predictive values for S and SP were 100%. There was no difference in diagnostic yield between S and SP (p = 0.344). Cellularity of samples obtained with SP and Suction were equivalent in both smear evaluation (p = 0.119) and cell-block (0.980). Bloodiness of SP and suction techniques were similar as well. Conclusions: S and SP techniques provide equivalent sensitivity, specificity, and accuracy. Association of methods seems to improve diagnostic yield. Suction does not increase the bloodiness of samples compared to slow-pull.
  • article 1 Citação(ões) na Scopus
    Pure Cut or Endocut for Biliary Sphincterotomy? A Multicenter Randomized Clinical Trial
    (2023) FUNARI, Mateus Pereira; BRUNALDI, Vitor Ottoboni; PROENCA, Igor Mendonca; GOMES, Pedro Victor Aniz; QUEIROZ, Lucas Tobias Almeida; VIEIRA, Yuri Zamban; MATUGUMA, Sergio Eiji; IDE, Edson; FRANZINI, Tomazo Antonio Prince; SANTOS, Marcos Eduardo Lera dos; CHENG, Spencer; MINATA, Mauricio Kazuyoshi; SANTOS, Jose Sebastio dos; MOURA, Diogo Turiani Hourneaux de; KEMP, Rafael; MOURA, Eduardo Guimares Hourneaux de
    INTRODUCTION: Adverse events (AE) after endoscopic retrograde cholangiopancreatography (ERCP) are not uncommon and post-ERCP acute pancreatitis (PEP) is the most important one. Thermal injury from biliary sphincterotomy may play an important role and trigger PEP or bleeding. Therefore, this study evaluated the outcomes of 2 electric current modes used during biliary sphincterotomy. METHODS: From October 2019 to August 2021, consecutive patients with native papilla undergoing ERCP with biliary sphincterotomy were randomized to either the pure cut or endocut after cannulation. The primary outcome was PEP incidence. Secondary outcomes included intraprocedural and delayed bleeding, infection, and perforation. RESULTS: A total of 550 patients were randomized (272 pure cut and 278 endocut). The overall PEP rate was 4.0% and significantly higher in the endocut group (5.8% vs 2.2%, P = 0.034). Univariate analysis revealed >5 attempts (P = 0.004) and endocut mode (P = 0.034) as risk factors for PEP. Multivariate analysis revealed >5 attempts (P = 0.005) and a trend for endocut mode as risk factors for PEP (P = 0.052). Intraprocedural bleeding occurred more often with pure cut (P = 0.018), but all cases were controlled endoscopically during the ERCP. Delayed bleeding was more frequent with endocut (P = 0.047). There was no difference in perforation (P = 1.0) or infection (P = 0.4999) between the groups. DISCUSSION: Endocut mode may increase thermal injury leading to higher rates of PEP and delayed bleeding, whereas pure cut is associated with increased intraprocedural bleeding without clinical repercussion. The electric current mode is not related to perforation or infection. Further RCT assessing the impact of electric current on AE with overlapping preventive measures such as rectal nonsteroidal anti-inflammatory drugs and hyperhydration are needed. The study was submitted to the Brazilian Clinical Trials Platform ( under the registry number RBR-5d27tn.
  • conferenceObject
    Carbon Dioxide Insufflation Versus Air Insufflation in Enteroscopy: A Systematic Review
    (2017) AQUINO, Julio Cesar M.; MOURA, Eduardo G. de; BERNARDO, Wanderlei M.; MINATA, Mauricio K.; ROCHA, Rodrigo S.; MORITA, Flavio Hiroshi A.; IDE, Edson; KUGA, Rogerio; ISHIDA, Robson K.
  • article
    Sodium picosulphate or polyethylene glycol before elective colonoscopy in outpatients? A systematic review and meta-analysis
    (2018) ROCHA, Rodrigo Silva de Paula; RIBEIRO, Igor Braga; MOURA, Diogo Turiani Hourneaux de; BERNARDO, Wanderley Marques; MINATA, Mauricio Kazuyoshi; MORITA, Flavio Hiroshi Ananias; AQUINO, Julio Cesar Martins; BABA, Elisa Ryoka; MIYAJIMA, Nelson Tomio; MOURA, Eduardo Guimaraes Hourneaux de
    AIM To determine the best option for bowel preparation [sodium picosulphate or polyethylene glycol (PEG)] for elective colonoscopy in adult outpatients. METHODS A systematic review of the literature following the PRISMA guidelines was performed using Medline, Scopus, EMBASE, Central, Cinahl and Lilacs. No restrictions were placed for country, year of publication or language. The last search in the literature was performed on November 20th, 2017. Only randomized clinical trials with full texts published were included. The subjects included were adult outpatients who underwent bowel cleansing for elective colonoscopy. The included studies compared sodium picosulphate with magnesium citrate (SPMC) and PEG for bowel preparation. Exclusion criteria were the inclusion of inpatients or groups with specific conditions, failure to mention patient status (outpatient or inpatient) or dietary restrictions, and permission to have unrestricted diet on the day prior to the exam. Primary outcomes were bowel cleaning success and/or tolerability of colon preparation. Secondary outcomes were adverse events, polyp and adenoma detection rates. Data on intention-totreat were extracted by two independent authors and risk of bias assessed through the Jadad scale. Funnel plots, Egger's test, Higgins' test (I2) and sensitivity analyses were used to assess reporting bias and heterogeneity. The meta-analysis was performed by computing risk difference (RD) using Mantel-Haenszel (MH) method with fixed-effects (FE) and random-effects (RE) models. Review Manager 5 (RevMan 5) version 6.1 (The Cochrane Collaboration) was the software chosen to perform the meta-analysis. RESULTS 662 records were identified but only 16 trials with 6200 subjects were included for the meta-analysis. High heterogeneity among studies was found and sensitivity analysis was needed and performed to interpret data. In the pooled analysis, SPMC was better for bowel cleaning [MH FE, RD 0.03, IC (0.01, 0.05), P = 0.003, I-2 = 33%, NNT 34], for tolerability [MH RE, RD 0.08, IC (0.03, 0.13), P = 0.002, I-2 = 88%, NNT 13] and for adverse events [MH RE, RD 0.13, IC (0.05, 0.22), P = 0.002, I-2 = 88%, NNT 7]. There was no difference in regard to polyp and adenoma detection rates. Additional analyses were made by subgroups (type of regimen, volume of PEG solution and dietary recommendations). SPMC demonstrated better tolerability levels when compared to PEG in the following subgroups: ""day-before preparation"" [MH FE, RD 0.17, IC (0.13, 0.21), P < 0.0001, I-2 = 0%, NNT 6], "" preparation in accordance with time interval for colonoscopy"" [MH RE, RD 0.08, IC (0.01, 0.15), P = 0.02, I-2 = 54%, NNT 13], when compared to ""high-volume PEG solutions"" [MH RE, RD 0.08, IC (0.01, 0.14), I-2 = 89%, P = 0.02, NNT 13] and in the subgroup "" liquid diet on day before"" [MH RE, RD 0.14, IC (0.06,0.22), P = 0.0006, I-2 = 81%, NNT 8]. SPMC was also found to cause fewer adverse events than PEG in the "" high-volume PEG solutions"" [MH RE, RD -0.18, IC (-0.30, -0.07), P = 0.002, I-2 = 79%, NNT 6] and PEG in the "" low-residue diet"" subgroup [MH RE, RD -0.17, IC (-0.27, 0.07), P = 0.0008, I-2 = 86%, NNT 6]. CONCLUSION SPMC seems to be better than PEG for bowel preparation, with a similar bowel cleaning success rate, better tolerability and lower prevalence of adverse events.
  • article 3 Citação(ões) na Scopus
    Increased Gastric Retention Capacity, Assessed by Scintigraphy, after APC Treatment of Dilated Gastrojejunal Anastomosis
    (2018) BARRICHELLO, Sérgio; GALVÃO NETO, Manoel dos Passos; SOUZA, Thiago Ferreira de; MOURA, Eduardo Guimarães Hourmeaux de; MINATA, Maurício; QUADROS, Ana Paula Oliveira de; GRECCO, Jaques Waisberga Eduardo; MACEDO, Guilherme; SILVA, Marco; QUADROS, Luiz Gustavo de
    Background: Weight regain occurs in about 20% of patients after Roux-en-Y gastric bypass (RYGB). Studies have reported that in most cases this regain is associated with dilatation of the gastrojejunal anastomosis. To correct this dilatation, one of the methods used is the application of argon plasma coagulation (APC). Case: The authors report the case of a 39-year-old woman submitted to RYGB who had weight regain. In the endoscopic evaluation, the patient presented with dilatation of the gastrojejunal anastomosis, for which treatment with APC and an adjusted diet was proposed. After 3 sessions of APC, the patient presented with a reduction of the anastomosis diameter, weight loss, and increased satiety to food, with an increased gastric emptying time evidenced by scintigraphy. Conclusion: APC proved to be a safe and efficacious method.
  • bookPart
    (2022) MINATA, Maurício Kazuyoshi; ARTIFON, Everson Luiz de Almeida
  • article 16 Citação(ões) na Scopus
    EBUS-TBNA versus surgical mediastinoscopy for mediastinal lymph node staging in potentially operable non-small cell lung cancer: a systematic review and meta-analysis
    (2020) FIGUEIREDO, Viviane Rossi; CARDOSO, Paulo Francisco Guerreiro; JACOMELLI, Marcia; SANTOS, Lilia Maia; MINATA, Mauricio; TERRA, Ricardo Mingarini
    ABSTRACT Objective: Lung cancer (LC) is one of the leading causes of death worldwide. Accurate mediastinal staging is mandatory in order to assess prognosis and to select patients for surgical treatment. EBUS-TBNA is a minimally invasive procedure that allows sampling of mediastinal lymph nodes (LNs). Some studies have suggested that EBUS-TBNA is preferable to surgical mediastinoscopy for mediastinal staging of LC. The objective of this systematic review and meta-analysis was to compare EBUS-TBNA and mediastinoscopy in terms of their effectiveness for mediastinal LN staging in potentially operable non-small cell lung cancer (NSCLC). Methods: This was a systematic review and meta-analysis, in which we searched various databases. We included studies comparing the accuracy of EBUS-TBNA with that of mediastinoscopy for mediastinal LN staging in patients with NSCLC. In the meta-analysis, we calculated sensitivity, specificity, positive likelihood ratios, and negative likelihood ratios. We also analyzed the risk difference for the reported complications associated with each procedure. Results: The search identified 4,201 articles, 5 of which (with a combined total of 532 patients) were selected for inclusion in the meta-analysis. There were no statistically significant differences between EBUS-TBNA and mediastinoscopy in terms of the sensitivity (81% vs. 75%), specificity (100% for both), positive likelihood ratio (101.03 vs. 95.70), or negative likelihood ratio (0.21 vs. 0.23). The area under the summary ROC curve was 0.9881 and 0.9895 for EBUS-TBNA and mediastinoscopy, respectively. Although the number of complications was higher for mediastinoscopy, the difference was not significant (risk difference: −0.03; 95% CI: −0.07 to 0.01; I2 = 76%). Conclusions: EBUS-TBNA and mediastinoscopy produced similar results for mediastinal staging of NSCLC. EBUS-TBNA can be the procedure of first choice for LN staging in patients with NSCLC.