Lymph node distribution in patients with remnant gastric cancer.

Background: Remnant gastric cancer (RGC) is defined as a carcinoma that develops in the gastric remnant from 5 years after gastrectomy, regardless of the primary gastric disease. The pattern of lymph node dissemination in these patients is not well understood. The present study aims to understand the lymph node distribution of patients with RGC in a single center.

Acoustic radiation force impulse elastography and liver fibrosis risk scores in severe obesity.

Objective: Identifying significant fibrosis is crucial to evaluate the prognosis and therapeutic interventions in patients with nonalcoholic fatty liver disease (NAFLD). We assessed the performance of acoustic radiation force impulse (ARFI) elastography, APRI, FIB-4, Forns, NFS and BARD scores in determining liver fibrosis in severe obesity.

Methods: A prospective study included 108 patients undergoing bariatric surgery.

Systemic Inflammation in Severe Obese Patients Undergoing Surgery for Obesity and Weight-Related Diseases.

Background: Obesity is a worldwide disease related to genetic, environmental, and behavioral factors, and it is associated with high rates of morbidity and mortality. Recently, obesity has been characterized by a low-grade inflammatory state known as inflammome indicated by chronic increases in circulating concentrations of inflammatory markers. The purpose of this study was to evaluate the effect of weight loss induced by surgery for obesity and weight-related diseases on pro-inflammatory cytokine (TNF-α) and anti-inflammatory adipokine (adiponectin) levels, and on an adipose-derived hormone (leptin) in severely obese subjects.

Prevalence and severity of syndrome Z in women with metabolic syndrome on waiting list for bariatric surgery: a cross-sectional study.

Background: In recent years, obesity has become one of the most important public health problems in the world, with a growing prevalence in both developed and developing countries. Recent studies show that sleep disturbances, especially obstructive sleep apnoea (OSA) may be a manifestation of metabolic syndrome (MetS). Although the association of OSA with the MetS is largely attributed to obesity, the exact pathophysiological mechanisms and their individual characteristics still need to be identified.

Minimally invasive surgery for gastric cancer in Brazil: current status and perspectives-a report from the Brazilian Laparoscopic Oncologic Gastrectomy Group (BLOGG).

The minimally invasive surgery for gastric cancer in Brazil has begun about two years after the first laparoscopic gastrectomy (LG) performed by Kitano in Japan, in 1991. Although the report of first surgeries shows the year of 1993, there was no dissemination of the technique until the years 2010. At that time with the improvement of optical devices, laparoscopic instruments and with the publications coming from Asia, several Brazilian surgeons felt encouraged to go to Korea and Japan to learn the standardization of the LG.

Laparoscopic bariatric surgery training program model: gastric bypass.

Background: Laparoscopy for bariatric surgery became the surgery of choice for surgeons worldwide. However, it is also more difficult to learn and has a great potential for complications. The specific training is fundamental to maintain the benefits without increasing the complications.

Obstructive sleep apnea and pulmonary function in patients with severe obesity before and after bariatric surgery: a randomized clinical trial.

Background: The increasing prevalence of obesity in both developed and developing countries is one of the most serious public health problems and has led to a global epidemic. Obesity is one of the greatest risk factors of obstructive sleep apnea (OSA), which is found in 60 to 70% of obese patients mainly due to the buildup of fat tissue in the upper portion of the thorax and neck. The aim of the present randomized clinical trial is to assess daytime sleepiness, sleep architecture and pulmonary function in patients with severe obesity before and after bariatric surgery.

Improvement of atherosclerotic markers in non-diabetic patients after bariatric surgery.

Background: The objective of this study was to assess the impact of bariatric surgery performed in extremely obese non-diabetic subjects on the following parameters: endothelial function, inflammatory processes (assessed by high-sensitivity C-reactive protein [hs-CRP]), carotid artery intima-media thickness (CIMT), and glucose and lipid profiles.

Methods: Forty-seven obese individuals with body mass index >40 kg/m(2) underwent bariatric surgery and returned for post-procedure assessment between 6 and 19 months after surgery. Ninety-three percent of patients were female.

[Ocular wavefront aberrations in patients with facial dystonia treated with botulinum toxin].

Purpose: To analyze the ocular wavefront aberrations in patients with facial dystonia treated with botulinum toxin A.

Methods: Patients with benign essential blepharospasm and hemifacial spasm in activity underwent slit lamp examination and bilateral wavefront analysis under pharmacologic mydriasis using Alcon LADARvision wavefront aberrometry system. After that, all patients were treated with botulinum toxin A injections performed by the same ophthalmologist.

Sleep study, respiratory mechanics, chemosensitive response and quality of life in morbidly obese patients undergoing bariatric surgery: a prospective, randomized, controlled trial.

Background: Obesity is a major public health problem in both developed and developing countries alike and leads to a series of changes in respiratory physiology. There is a strong correlation between obesity and cardiopulmonary sleep disorders. Weight loss among such patients leads to a reduction in these alterations in respiratory physiology, but clinical treatment is not effective for a long period of time.

[Comparative analyses between clinical refraction and automatic refraction obtained through a wave front sensor].

Purpose: To evaluate and compare refractive errors obtained through clinical subjective and automatized wavefront refraction analyses in eyes under cycloplegia.

Methods: Prospective study of 147 patients, 279 eyes, undergoing preoperative examination for refractive surgery. Clinical subjective refraction was performed first followed by wavefront refraction.

[Predictive factors for cholelithiasis in the morbidly obese submitted to Roux-en-Y gastroplasty].

Objective: This study intended to evaluate predictive factors for cholelithiasis in morbidly obese submitted to gastroplasty with "Y" de Roux reconstruction.

Methods: The population under study was a group of obese patients enrolled in a program of surgical procedure for morbid obesity at the Department of Surgery, College of Medical Sciences, Santa Casa de São Paulo. The exclusion criteria were: patients previously cholecystectomized, patients with diagnosis of pre-operative cholelithiasis and patients with a questionable ultrasonography about existence of billiary stones.

Upper gastrointestinal hemorrhage due to duodenal stromal tumor.

Background: Gastrointestinal stromal tumor represents a rare neoplasm that originates in the muscular wall of the hollow viscera.

Aim: To report gastrointestinal stromal tumor as a source of upper gastrointestinal bleeding, which required urgent surgical control.

Patient/method: A man with 61 years old was admitted to the emergency service sustaining hematemesis and melena.