SciELO Brasil - Scientific Electronic Library Online
(73.762 recursos)
SciELO (Scientific Electronic Library Online) is an electronic library covering a selected collection of Brazilian scientific journals. The objective of the site is to implement an electronic virtual library, providing full access to a collection of serial titles, a collection of issues from individual serial titles, as well as to the full text of articles. The project envisages the development of a common methodology for the preparation, storage, dissemination and evaluation of scientific literature in electronic format.
Arquivos de Gastroenterologia
Mostrando recursos 1 - 20 de 349
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A morphometric study of the intestinal mucosa of rats submitted to omentoenteropexy - Fernandez,Pedro Muñoz; Pollachi,Fabíola; Cordeiro,Rafael Alves; Mader,Ana Maria A. A; Catapani,Wilson Roberto
CONTEXT: The omentoenteropexy technique was developed as an alternative method for intestinal neovascularization, due to the angiogenic properties of factors from the omentum. OBJECTIVES: This study investigated changes in intestinal villi heights and crypts depths due to surgical techniques: seromiotomy with and without omentoenteropexy. METHOD: Thirty rats were operated on, after being divided into three groups, namely GI, GII and GIII with 10 rats each. In the GI rats were submitted to omentoenteropexy; rats in GII were submitted only to a seromiotomy, and in the GIII only laparotomy. Sixty days after the first surgery, the animals were sacrificed and a...
2.
Evaluation of antiulcerogenic activity of aqueous extract of Brassica oleracea var. capitata (cabbage) on Wistar rat gastric ulceration - Carvalho,Camilo Amaro de; Fernandes,Kenner Moraes; Matta,Sérgio Luiz Pinto; Silva,Marcelo Barreto da; Oliveira,Leandro Licursi de; Fonseca,Cláudio César
CONTEXT: The cabbage (Brassica oleraceae var. capitata) is an herbaceous and leafy plant which belongs to the Brassicaceae family, native to coastal southern and Western Europe. Used in cooking for its nutritional value also has known anti-inflammatory activity. OBJECTIVE We studied the antiulcerogenic activity of aqueous extract of Brassica oleracea var. capitata (AEB) in order to validate ethnobotanical claims regarding the plant use in the gastric disorders. METHOD: Acute gastric ulcers were induced in rats by the oral administration of acetylsalicylic acid. The gastroprotective potential of the AEB (0.250, 0.500 and 1.000 mg.kg-1/body weight) was compared with omeprazole (20 mg.kg-1/body...
3.
Locally advanced colorectal cancer: results of surgical treatment and prognostic factors - Campos,Fábio Guilherme; Calijuri-Hamra,Maria Célia; Imperiale,Antonio Rocco; Kiss,Desidério Roberto; Nahas,Sergio Carlos; Cecconello,Ivan
OBJECTIVES: To evaluate the incidence surgical results and prognostic factors of locally advanced colorectal cancer. METHODS: Cohort study including 679 colorectal cancer patients treated from 1997 to 2007. Clinical, surgical and histological data were analyzed. RESULTS: Ninety patients (females 61%; median age 59 years) were treated for locally advanced carcinomas (13.2%), either in the colon (66%) or rectum (34%). Extended resections most commonly involved the small bowel (19.8%), bladder (16.4%), uterus (12.9%) and ovaries (11.2%). Postoperative morbidity and mortality occurred in 23 (25.6%) and 3 (3.3%) patients, respectively. Survival and recurrence analysis among 76 R0 (84.4%) procedures revealed a 60%...
4.
Influence of age, mode of delivery and parity on the prevalence of posterior pelvic floor dysfunctions - Murad-Regadas,Sthela Maria; Regadas,Francisco Sergio P; Rodrigues,Lusmar Veras; Furtado,Débora Couto; Gondim,Ana Cecília; Dealcanfreitas,Íris Daiana
CONTEXT: The correlation between vaginal delivery, age and pelvic floor dysfunctions involving obstructed defecation is still a matter of controversy. OBJECTIVES: To determine the influence of age, mode of delivery and parity on the prevalence of posterior pelvic floor dysfunctions in women with obstructed defecation syndrome. METHODS: Four hundred sixty-nine females with obstructed defecation syndrome were retrospectively evaluated using dynamic 3D ultrasonography to quantify posterior pelvic floor dysfunctions (rectocele grade II or III, rectal intussusception, paradoxical contraction/non-relaxation of the puborectalis and entero/ sigmoidocele grade III). In addition, sphincter damage was evaluated. Patients were grouped according to age (<50y x >50y)...
5.
Helicobacter pylori antibiotic resistance in Brazil: clarithromycin is still a good option - Jaime Natan,Eisig; Silva,Fernando Marcuz; Barbuti,Ricardo Correa; Navarro-Rodriguez,Tomás; Moraes-Filho,Joaquim Prado P; Pedrazzoli Jr,José
CONTEXT: The antibiotic susceptibility is the cornerstone for the eradication therapies of Helicobacter pylori. OBJECTIVES: To evaluate the prevalence of primary resistance of H. pylori was evaluated in an urban Brazilian population. METHODS:H. pylori isolates were obtained from patients submitted to an upper gastrointestinal endoscopy for the evaluation of dyspeptic symptoms. Biopsies from antrum, corpus and fundus were taken to determine the antibiotic susceptibility of H. pylori isolates. The minimal inhibitory concentration of furazolidone and bismuth were routinely determined by agar dilution method and the minimal inhibitory for amoxicillin, clarithromycin, tetracycline, levofloxacin, and metronidazole were routinely determined with the E-test....
6.
Surgical treatment of gastroesophageal reflux disease: total or partial fundoplication? Systematic review and meta-analysis - Ramos,Rodrigo F; Lustosa,Suzana Angélica S; Almeida,Carlos Augusto P. de; Silva,Carolina P. da; Matos,Delcio
CONTEXT: Although the high incidence of gastroesophageal reflux disease (GERD) in the population, there is much controversy in this topic, especially in the surgical treatment. The decision to use of a total or partial fundoplication in the treatment of GERD is still a challenge to many surgeons because the few evidence found in the literature. OBJECTIVE: To bring more clear evidence in the comparison between total and partial fundoplication. DATA SOURCES: A systematic review of the literature and metaanalysis with randomized controlled trials accessed from MEDLINE, LILACS, Cochrane Controlled Trials Database was done. The outcomes remarked were: dysphagia, inability to...
7.
Prospective study of bacteremia rate after elective band ligation and sclerotherapy with cyanoacrylate for esophageal varices in patients with advanced liver disease - Bonilha,Danielle Queiroz; Correia,Lucianna Motta; Monaghan,Marie; Lenz,Luciano; Santos,Marcus; Libera,Ermelindo Della
CONTEXT: Band ligation (BL) is the most appropriate endoscopic treatment for acute bleeding or prophylaxis of esophageal variceal bleeding. Sclerotherapy with N-butyl-2-cyanoacrylate (CY) can be an alternative for patients with advanced liver disease. Bacteremia is an infrequent complication after BL while the bacteremia rate following treatment with CY for esophageal varices remains unknown. OBJECTIVES: To evaluate and compare the incidence of transient bacteremia between cirrhotic patients submitted to diagnostic endoscopy, CY and BL for treatment of esophageal varices. METHODS: A prospective study comprising the period from 2004 to 2007 was conducted at Hospital of Universidade Federal de São Paulo, UNIFESP,...
8.
Endoscopic mucosal resection in colorectal lesion: a safe and effective procedure even in lesions larger than 2 cm and in carcinomas - Santos,Carlos Eduardo Oliveira dos; Malaman,Daniele; Pereira-Lima,Julio Carlos
CONTEXT: Endoscopic mucosal resection is a minimally invasive technique used in the treatment of colorectal neoplasms, including early carcinomas of different size and morphology. OBJECTIVES: To evaluate procedure safety, efficacy, outcomes, and recurrence rate in endoscopic mucosal resection of colorectal lesions. METHODS: A total of 172 lesions in 156 patients were analyzed between May 2003 and May 2009. All lesions showed pit pattern suggestive of neoplasia (Kudo types III-V) at high-magnification chromocolonoscopy with indigo carmine. The lesions were evaluated for macroscopic classification, size, location, and histopathology. Lesions 20 mm or smaller were resected en bloc and lesions larger than 20...
9.
Upper endoscopy versus endosonography in differential diagnosis of gastrointestinal bulging - Ardengh,José Celso; Vaiciunas,Spencer; Kemp,Rafael; Venco,Filadelfo; Lima-Filho,Éder Rios; Santos,José Sebastião dos
CONTEXT: The identification of a bulging covered by normal epithelium is a common finding during an upper gastrointestinal endoscopy. OBJECTIVE: To compare the endoscopic and endosonography findings in the differential diagnosis of the gastrointestinal bulging (subepithelial tumor or extrinsic compression). METHOD: Patients referred by endosonography with bulging of upper gastrointestinal tract were studied retrospectively. The size, location, consistency and presumptive diagnosis were recorded at time of endoscopy and endosonography. Endosonography-guided fine-needle aspiration was proposed in case of uncertain diagnose to increase diagnostic sensitivity. RESULTS: One hundred seventy-six patients (93 women) and mean age 62.5 years (10-87). One hundred fifty-three had...
10.
New "introducer" PEG-gastropexy with T fasteners: a pilot study - Martins,Fernanda Prata; Sousa,Maris Celia Batista de; Ferrari,Angelo Paulo
CONTEXT: Enteral feeding is indicated for patients unable to maintain appropriate oral intake, and percutaneous endoscopic gastrostomy (PEG) is the most adequate long-term enteral access. Peristomal infections are the most common complications of PEG, occurring in up to 8% of patients, despite the use of prophylactic antibiotics. The "introducer" PEG-gastropexy technique avoids PEG tube passage through the oral cavity, preventing microorganisms' dislodgment to the peristomal site. OBJECTIVES: To compare the incidence of peristomal wound infection at 7-day post-procedure after conventional "pull" technique versus a new "introducer" PEG-gastropexy kit. Secondary outcomes included success rates, procedure time, and other complications. METHODS: Eighteen...
11.
Clinical, endoscopic and histopathological profiles of parasitic duodenitis cases diagnosed by upper digestive endoscopy - Santos,Reinaldo Benevides dos; Fonseca Jr,Luciano Espinheira; Santana,Andrea Tosta de Azevedo; Silva,Carolina Alves Costa; Guedes,Jorge Carvalho
CONTEXT: Intestinal parasites induce detectable histopathological changes, which have been studied in groups with known diagnosis of parasitic disease. There is no available study with a larger base without previous diagnosis. OBJECTIVE: To describe clinical and histopathological findings of parasitosis diagnosed by endoscopic biopsy in patients submitted to upper digestive endoscopy. METHODS: Recorded biopsies archive at "Complexo Hospitalar Professor Edgar Santos" , a general teaching Hospital in the state of Bahia, Northeast Brazil, from January 1995 to January 2009, were reviewed. One thousand ten duodenal biopsy reports were found. Reports positive for parasites had their specimens reviewed and photographed. All...
13.
Celiac disease screening in patients with scleroderma - Nisihara,Renato; Utiyama,Shirley Rosa; Azevedo,Pedro Ming; Skare,Thelma Larocca
Both celiac disease and scleroderma have autoimmune etiology and affect the bowel causing diarrhea. As an association of autoimmune disease in a single individual is not rare, it is important to know if a patient with scleroderma may also have celiac disease. To analyze this we studied 105 scleroderma patients and 97 volunteers for IgA-EmA by indirect immunofluorescence assay. We could not find a higher prevalence of this autoantibody in scleroderma patients. The authors conclude that there is no need to screen scleroderma patients with diarrhea for celiac disease unless there is a clear clinical indication for this.
14.
Endoscopic treatment for gastric perforation using T-tag and a plastic protection chamber: a short-term survival study - Hashiba,Kiyoshi; Siqueira,Pablo R.; Brasil,Horus A.; D'Assunção,Marco Aurélio; Moribe,Daniel; Cassab,Jorge Carim
CONTEXT: The endoscopic gastric perforation is a consequence of some endoscopic procedures and now a way to manage abdominal organs. This is the reason why endoscopists are studying a safe endoscopic repair. OBJECTIVE: To evaluate an endoscopic closure method for the gastric opening in natural orifice transenteric surgery DESIGN: Short-term survival animal study. METHODS: Ten White Landrace pigs underwent a gastric perforation of 1.8 cm in diameter under general anesthesia. The opening was repaired with stitch assembled in a T-tag anchor placed through the gastric wall with a needle. A plastic transparent chamber, adapted to the endoscope tip protected the...
15.
Hepatic and biochemical repercussions of a polyunsaturated fat-rich hypercaloric and hyperlipidic diet in Wistar rats - Burlamaqui,Idália M. B.; Dornelas,Conceição A.; Valença Jr,José Telmo; Mesquita,Francisco J. C.; Veras,Lara B.; Rodrigues,Lusmar Veras
CONTEXT: Non-alcoholic fatty liver disease is characterized by lipid deposits in the hepatocytes and has been associated with obesity, dyslipidemia and type-2 diabetes. It is considered a hepatic manifestation of the metabolic syndrome, of which the main component is insulin resistance leading to hyperinsulinemia and increased production of inflammatory cytokines. Saturated fat promotes hypertriglyceridemia and hyperinsulinemia, reduces levels of high-density cholesterol and increases levels of low-density cholesterol, while polyunsaturated fat is associated with hypolipidemic, antiinflammatory and imunoregulating action. OBJECTIVE: To evaluate the hepatic and biochemical repercussions of a polyunsaturated fat-rich diet in Wistar rats. METHODS: Twenty-two rats were distributed equally...
16.
Islet transplantation in rodents: do encapsulated islets really work? - Souza,Yngrid Ellyn Dias Maciel de; Chaib,Eleazar; Lacerda,Patricia Graça de; Crescenzi,Alessandra; Bernal-Filho,Arnaldo; D'Albuquerque,Luiz Augusto Carneiro
CONTEXT: Diabetes mellitus type I affects around 240 million people in the world and only in the USA 7.8% of the population. It has been estimated that the costs of its complications account for 5% to 10% of the total healthcare spending around the world. According to World Health Organization, 300 million people are expected to develop diabetes mellitus by the year 2025. The pancreatic islet transplantation is expected to be less invasive than a pancreas transplant, which is currently the most commonly used approach. OBJECTIVES: To compare the encapsulated and free islet transplantation in rodents looking at sites of...
17.
The value of high-resolution anoscopy in the diagnosis of anal cancer precursor lesions in hiv-positive patients - Gimenez,Felicidad; Costa-e-Silva,Ivan Tramujas da; Daumas,Adriana; Araújo,José de; Medeiros,Sara Grigna; Ferreira,Luiz
CONTEXT: Anal cancer, although a still rare disease, is being observed in ascending rates among some population segments known to be at risk for the development of the disease. Human papillomavirus (HPV) infection, immunodepression and anal intercourse are some factors associated with the development of the malignancy. Its similarities to cervical cancer have led to many studies aiming to establish guidelines for detecting and treating precursor lesions of anal cancer, with the goal of prevention. High-resolution anoscopy is routinely used for the diagnosis of anal cancer precursor lesions in many centers but the medical literature is still deficient concerning the...
18.
Prevalence of celiac disease in siblings of Iranian patients with celiac disease - Chomeili,Bashir; Aminzadeh,Majid; Hardani,Amir Kamal; Fathizadeh,Payam; Chomeili,Pooya; Azaran,Azarakhsh
CONTEXT: Celiac disease, one of the best-known autoimmune human leukocyte antigen-dependent disorders, has a relatively increased prevalence in first-degree relatives. OBJECTIVE: To determine the prevalence of celiac disease in siblings of patients with confirmed celiac disease. METHODS: Siblings of confirmed celiac disease patients in our center were identified and enrolled in this study. Their serum immunoglobulin A and tissue transglutaminase antibody-enzyme-linked immunosorbent assay (anti-tissue transglutaminase, immunoglobulin A, and immunoglobulin G) were measured and multiple endoscopic duodenal biopsy specimens were obtained with parental consensus. Celiac disease was confirmed by observation of characteristic histological changes. RESULTS: A total of 49 children (male,...
19.
HBV and HCV serological markers in patients with the hepatosplenic form of mansonic schistosomiasis - Silva,Jéfferson Luis de Almeida; Souza,Veridiana Sales Barbosa de; Vilella,Tatiana Aguiar Santos; Domingues,Ana Lúcia C.; Coêlho,Maria Rosângela Cunha Duarte
CONTEXT: Blood transfusion is one of the major risk factors for the transmission of the hepatitis B (HBV) and C (HCV) viruses. However, there are no reports describing the endoscopic transmission of these viruses in patients with the hepatosplenic form of schistosomiasis. OBJECTIVE: To estimate the prevalence of serological markers of HBV and HCV in patients with the hepatosplenic form of schistosomiasis and evaluate the possible risk factors associated with these infections. METHODS: A cross-sectional study was conducted on 230 patients with hepatosplenic form of schistosomiasis who attended a university hospital in Recife, Northeastern Brazil, from February to August 2008....
20.
Prospective study of ultrasound with perflutrene contrast compared to magnetic resonance imaging in the diagnosis of hepatic hemangiomas - Schmillevitch,Joel; Szutan,Luiz Arnaldo; Ferreira,Fábio Gonçalves; Santos,Maria de Fátima; Mincis,Ricardo; Gorski,Ana
CONTEXT:The incidence of hepatic hemangiomas ranges from 0.4% to 20% in the general population. Conventional ultrasound is usually the first diagnostic method to identify these hemangiomas, typically as an incidental finding. Ultrasonography with second generation contrast materials is being used in various areas of hepatology, yielding similar results to those obtained with computerized tomography and magnetic resonance imaging in the diagnosis of hepatic hemangiomas. OBJECTIVE: To evaluate the agreement between ultrasound with perflutrene contrast and magnetic resonance imaging in the diagnosis of hepatic hemangiomas. METHODS: A total of 37 patients were prospectively examined between January 2006 and August 2008. A...
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