LEONARDO ZORRON CHENG TAO PU
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7 resultados
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- Obscure gastrointestinal bleeding caused by intestinal lipomatosis: double-balloon endoscopic and laparoscopic views(2016) SAFATLE-RIBEIRO, Adriana Vaz; OLIVEIRA, Rodrigo Jose de; PU, Leonardo Zorron; CAIADO, Angela H. M.; MOURA, Eduardo G. H. de; RIBEIRO, Ulysses; ZILBERSTEIN, Bruno
- Esophageal perforation after epicardial ablation: an endoscopic approach(2015) MOURA, Eduardo Guimaraes Hourneaux de; SILVA, Gustavo Luis Rodela; MOURA, Eduardo Turiani Hourneaux de; PU, Leonardo Zorron Cheng Tao; CASTRO, Vinicius Leite de; MOURA, Diogo Turiani Hourneaux de; SALLUM, Rubens Antonio Aissar
- Sessile serrated adenoma/polyps: Where are we at in 2016?(2016) SINGH, Rajvinder; PU, Leonardo Zorron Cheng Tao; KOAY, Doreen; BURT, AlastairIt is currently known that colorectal cancers (CRC) arise from 3 different pathways: the adenoma to carcinoma chromosomal instability pathway (50%-70%); the mutator ""Lynch syndrome"" route (3%-5%); and the serrated pathway (30%-35%). The World Health Organization has classified serrated polyps into three types of lesions: hyperplastic polyps (HP), sessile serrated adenomas/polyps (SSA/P) and traditional serrated adenomas (TSA), the latter two strongly associated with development of CRCs. HPs do not cause cancer and TSAs are rare. SSA/P appear to be the responsible precursor lesion for the development of cancers through the serrated pathway. Both HPs and SSA/Ps appear morphologically similar. SSA/P are difficult to detect. The margins are normally inconspicuous. En bloc resection of these polyps can hence be troublesome. A careful examination of borders, submucosal injection of a dye solution (for larger lesions) and resection of a rim of normal tissue around the lesion may ensure total eradication of these lesions.
conferenceObject Hydrostatic Dilation of the Cardia for Achalasia: Technique and Results Using the Loss of the Radiological Waist As a Procedure Guidance Parameter. A Prospective Case Study(2017) MARINHO, Fabio R.; MOURA, Eduardo T.; COUTINHO, Lara M.; DELGADO, Aureo; ZORRON, Leonardo; CORONEL, Martin; MOURA, Diogo T. de; CHENG, Spencer; SALLUM, Rubens A.; SAKAI, Paulo; MOURA, Eduardo G. de- Endoscopic hemostasis for peptic ulcer bleeding: systematic review and meta-analyses of randomized controlled trials(2016) BARACAT, Felipe; MOURA, Eduardo; BERNARDO, Wanderley; PU, Leonardo Zorron; MENDONCA, Ernesto; MOURA, Diogo; BARACAT, Renato; IDE, EdsonBackground Peptic ulcer represents the most common cause of upper gastrointestinal bleeding. Endoscopic therapy can reduce the risks of rebleeding, continued bleeding, need for surgery, and mortality. The objective of this review is to compare the different modalities of endoscopic therapy. Methods Studies were identified by searching electronic databases MEDLINE, Embase, Cochrane, LILACS, DARE, and CINAHL. We selected randomized clinical trials that assessed contemporary endoscopic hemostatic techniques. The outcomes evaluated were: initial hemostasis, rebleeding rate, need for surgery, and mortality. The possibility of publication bias was evaluated by funnel plots. An additional analysis was made, including only the higher-quality trials. Results Twenty-eight trials involving 2988 patients were evaluated. Injection therapy alone was inferior to injection therapy with hemoclip and with thermal coagulation when evaluating rebleeding and the need for emergency surgery. Hemoclip was superior to injection therapy in terms of rebleeding; there were no statistically significant differences between hemoclip alone and hemoclip with injection therapy. There was considerable heterogeneity in the comparisons between hemoclip and thermal coagulation. There were no statistically significant differences between thermal coagulation and injection therapy, though their combination was superior, in terms of rebleeding, to thermal coagulation alone. Conclusions Injection therapy should not be used alone. Hemoclip is superior to injection therapy, and combining hemoclip with an injectate does not improve hemostatic efficacy above hemoclip alone. Thermal coagulation has similar efficacy as injection therapy; combining these appears to be superior to thermal coagulation alone. Therefore, we recommend the application of hemoclips or the combined use of injection therapy with thermal coagulation for the treatment of peptic ulcer bleeding.
- Achalasia: from diagnosis to management(2016) VAEZI, Michael F.; FELIX, Valter N.; PENAGINI, Roberto; MAURO, Aurelio; MOURA, Eduardo Guimaraes Hourneaux de; PU, Leonardo Zorron Cheng Tao; MARTINEK, Jan; RIEDER, ErwinAchalasia is an esophagealmotility disorder associated with abnormalities in peristalsis and lower esophageal sphincter (LES) relaxation. The etiology of the disease remains elusive. It is often misdiagnosed initially as gastroesophageal reflux disease. Patients with achalasia often complain of dysphagia to solids and liquids but may focus on regurgitation as the primary symptom, leading to the early misdiagnosis. Chest pain, weight loss, and occasional vomiting may be additional symptoms encountered in those with achalasia. The disease may be suspected on the basis of clinical presentation, but diagnosis depends on classic findings using high-resolution manometry, showing either failed or simultaneous contractions with associated normal or high LES pressures with no or incomplete relaxation with swallows. There are no cures for achalasia, and, in most patients, treatments have to be repeated over time. Definitive treatment options in achalasia include pneumatic dilation, surgical myotomy, and the new technique of per-oral endoscopic myotomy. Botulinum toxin (Botox) or other medical therapies are often reserved for those who cannot have definitive therapies owing to comorbid conditions.
bookPart Próteses Metálicas na Via Biliar(2017) PU, Leonardo Zorrón Cheng; ROCHA, Rodrigo Silva de Paula; ARTIFON, Everson Luiz de Almeida; MOURA, Eduardo Guimarães Hourneaux de; SAKAI, Paulo