Dalton Chaves

ORCID: 0000-0003-4026-533X
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About
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Research Areas
  • Gastrointestinal disorders and treatments
  • Pancreatic and Hepatic Oncology Research
  • Gastric Cancer Management and Outcomes
  • Pancreatitis Pathology and Treatment
  • Gallbladder and Bile Duct Disorders
  • Gastrointestinal motility and disorders
  • Esophageal and GI Pathology
  • Pediatric Hepatobiliary Diseases and Treatments
  • Gastrointestinal Tumor Research and Treatment
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Gastroesophageal reflux and treatments
  • Metastasis and carcinoma case studies
  • Neuroendocrine Tumor Research Advances
  • Liver Disease and Transplantation
  • Esophageal Cancer Research and Treatment
  • Helicobacter pylori-related gastroenterology studies
  • Liver Disease Diagnosis and Treatment
  • Intestinal Malrotation and Obstruction Disorders
  • Colorectal Cancer Screening and Detection
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Vascular Malformations and Hemangiomas
  • Dysphagia Assessment and Management
  • Clinical Nutrition and Gastroenterology
  • Intestinal and Peritoneal Adhesions
  • Abdominal Surgery and Complications

Universidade de São Paulo
2013-2024

Universidade Brasil
2024

Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo
2010-2021

Fleury S.A. (Brazil)
2009-2021

Hospital do Coração
2018

Universidade Estadual de Campinas (UNICAMP)
2018

Instituto ABCD
2018

University of California, Berkeley
2018

Universidade Federal de São Paulo
2018

Brazilian Medical Association
2015-2016

Objective Although gastric per-oral endoscopic myotomy (G-POEM) is considered a promising technique for the management of refractory gastroparesis, high-quality evidence limited. We prospectively investigated efficacy and safety G-POEM in unselected patients with gastroparesis. Design In five tertiary centres, symptomatic gastroparesis to standard medical therapy confirmed by impaired emptying were included. The primary endpoint was clinical success, defined as at least one score decrease...

10.1136/gutjnl-2020-322756 article EN Gut 2021-03-19

ABSTRACT BACKGROUND: One of the most feared complications with use cyanoacrylate for treatment gastric varices is occurrence potentially life-threatening systemic embolism. Thus, endoscopists are turning towards new techniques, including endoscopic coiling, as a safer and more effective option. However, no studies have been performed comparing two techniques. OBJECTIVE: This study aims to compare safety efficacy ultrasound guided coil injection versus conventional technique alone. DESIGN: A...

10.1590/s0004-2803.201900000-08 article EN cc-by-nc Arquivos de Gastroenterologia 2019-03-01

Background and Study Aims: There have so far been no prospective studies on the value of flexible endoscopy for removing foreign bodies in upper gastrointestinal tract. This study presents a clinical analysis accidents with prospectively evaluates effectiveness them. Patients Methods: A total 105 cases foreign-body ingestion tract were evaluated, 29 (27.6 %) children 76 (72.4 adults. Thirty patients (28.5 had esophageal strictures. Results: Thirty-nine (37.1 consisted food 66 (62.9 not...

10.1055/s-2004-825856 article EN Endoscopy 2004-09-28

BACKGROUND: Gastric antral vascular ectasia is a disorder whose pathogenetic mechanism unknown. The endoscopic treatment with argon plasma coagulation has been considered one of the best therapeutic options. AIM: To analyze and clinical features gastric its response to treatment. PATIENTS AND METHODS: Eighteen patients were studied classified into two groups: group 1 - aspect was striped (watermelon) or diffuse confluent type; 2 spotty nonconfluent aspect. RESULTS: Group eight patients, all...

10.1590/s0004-28032006000300007 article EN cc-by-nc Arquivos de Gastroenterologia 2006-09-01

See also: Commentaire de travail F. Maluf-Filho et al., pp. 979Endoscopy 2009; 41(11): 1009-1009DOI: 10.1055/s-0032-1306758

10.1055/s-0029-1215192 article EN Endoscopy 2009-10-28

Endoscopic submucosal dissection is a new Japanese technique characterized by en-bloc resection of the entire lesion irrespective size, with lower local recurrence when compared to endoscopic mucosal resection.To evaluate feasibility, early results and complications for treating gastric esophageal cancer at Unit Clinics Hospital Cancer Institute São Paulo University.Twenty patients underwent using or cancer. The were evaluated prospectively as executability technique, short-term procedure...

10.1590/s1807-59322010000400005 article EN cc-by-nc Clinics 2010-04-01

Objective This study aimed to evaluate the feasibility and clinicopathological characteristics of early gastric esophageal cancers treated with endoscopic submucosal dissection (ESD) at five centers in Brazil. Methods Five Brazil reported their initial experience ESD. The cases had already been collected by each center before pooled analysis. Results Were resected 62 lesions; 52(83,8%) lesions were well-differentiated adenocarcinoma, 31(50%) from antrum, 24 (38.7%) type IIa. 51 (82.2%)...

10.1590/s0004-28032013000200025 article EN cc-by-nc Arquivos de Gastroenterologia 2013-04-01

Thrombin was first described as an aneurysmal occlusion agent in 1986. Since that time its therapeutic potential has been increasingly recognized. Percutaneous injection of thrombin reported effective the management femoral pseudoaneurysms [1] [2]. We present a case pancreatic pseudoaneurysm splenic artery, which successfully treated using new approach consisted under endoscopic ultrasound (EUS) guidance.

10.1055/s-0030-1256740 article EN Endoscopy 2012-04-03

Serrated polyps, which are considered to be precursors of colorectal carcinoma, include hyperplastic sessile serrated adenomas and traditional adenomas. With the exception all these lesions must removed. This study sought examine whether underwater endoscopic mucosal resection is a safe effective technique for treating polyps.Cases in patients were submitted histologically diagnosed with adenoma prospectively registered.The median patient age was 54.5 years (range, 48 72 years), included 4...

10.6061/clinics/2018/e339 article EN cc-by Clinics 2018-01-01

Chromoendoscopy with Lugol's staining remains the gold standard technique for detecting superficial SCC. An alternative technique, such as narrow-band imaging (NBI), “optical staining” would be desirable, since NBI is a simpler and has no known complications. In this study, we compare without magnification chromoendoscopy high-grade dysplasia intramucosal esophageal squamous cell carcinoma (SCC) in patients achalasia. This was prospective observational study of 43 achalasia referred to...

10.1155/2013/736756 article EN Journal of Oncology 2013-01-01
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