Publications by authors named "Laisa S Jimenez"
Background: The long-term effects of bariatric surgery on the course of non-alcoholic fatty hepatopathy (NAFLD) are not fully understood.
Objective: To analyze the evolution of NAFLD characteristics through noninvasive markers after Roux-en-Y gastric bypass (RYGB) over a five-year period.
Design And Setting: Historical cohort study; tertiary-level university hospital.
Background: The role of transient obstructive cholestasis on liver histology remains undetermined.
Objective: To investigate whether transient cholestasis impairs liver histology.
Design And Setting: Cross-sectional study at a public university hospital (UNICAMP), Brazil.
Background: The weight loss outcomes after banded one-anastomosis gastric bypass (OAGB) remain to be determined.
Objective: To compare weight loss and vomiting 1 year after banded versus non-banded OAGB.
Methods: This is a prospective, open-label, randomized study, which evaluated 33 individuals with morbid obesity, which underwent banded (16 individuals) and non-banded OAGB (17 individuals) and were followed up for 12 months.
Background: While evidence of improved renal function following gastric bypass exists, pre-operative predictors of this improvement are not completely known.
Objectives: To assess the glomerular filtration rate (GFR) 1 year after Roux-en-Y gastric bypass (RYGB) and to identify pre-operative predictors associated with the improvement of renal function.
Methods: A historical cohort study, which included 109 obese patients before and 12 months after RYGB, was classified into subgroups according to GFR (normofiltration, hypofiltration (GFR < 5th percentile), and hyperfiltration (GFR > 95th percentile)).
Background: Although some early metabolic benefits provided by bariatric surgery are known to occur regardless of weight loss, the impact of mid- to long-term weight recidivism after Roux-en-Y gastric bypass (RYGB) on metabolic outcomes is not profoundly understood.
Objective: To investigate the effect of weight recidivism on insulin resistance among nondiabetic individuals with morbid obesity after RYGB during a 3-year follow-up.
Setting: Public tertiary university hospital.
Non-Alcoholic Fatty Liver Disease Is Associated with Impairment of Ejection Fraction Among Individuals with Obesity Undergoing Bariatric Surgery: Results of a Cross-Sectional Study.
Obes Surg
February 2020
Background: The relationship between non-alcoholic fatty liver disease (NAFLD) and myocardial function seems to be more than just the effect of mutual metabolic risk factors.
Objective: To determine whether there is a significant association between NAFLD assessed by means of liver biopsy and left ventricular function expressed by the estimated ejection fraction among individuals with obesity.
Methods: This is a cross-sectional study which enrolled individuals who consecutively underwent bariatric surgery.
Background: The influence of post-surgical weight regain on the course of non-alcoholic fatty liver disease (NAFLD) is unclear.
Objective: To evaluate the influence of weight regain on the NAFLD assessed by means of a non-invasive score after Roux-en-gastric bypass (RYGB) over a 3-year period.
Methods: This is a prospective observational cohort study which evaluated individuals who underwent RYGB.
Objective: This study aims to investigate the correlation between features of NAFLD among individuals with morbid obesity and the surrogate IR markers homeostasis model assessment (HOMA), product of triglycerides and glucose (TyG), and triglyceride-to-high-density-lipoprotein ratio (TG/HDL-c).
Methods: A cross-sectional study, which enrolled 89 individuals who consecutively underwent bariatric surgery from February through December 2015, was conducted. NAFLD was assessed through histological examination of liver biopsies and correlated with the values of HOMA, TyG, and TG/HDL-c and their respective cutoff points for insulin resistance (IR).
Human papillomavirus in tonsillar squamous cell carcinomas from Guatemala and Brazil.
Oral Surg Oral Med Oral Pathol Oral Radiol
April 2016
Objectives: A subgroup of tonsillar squamous cell carcinoma (SCC) is associated with human papillomavirus (HPV). Nevertheless, the prevalence of HPV seems to be variable in different regions and ethnic groups. There are no reports of HPV in tonsillar carcinomas in Guatemala, and data from Brazil are scarce.
View Article and Find Full Text PDFContext And Objective: Nonalcoholic fatty liver disease (NAFLD) has become a public health concern. It encompasses a wide spectrum of histological abnormalities and has close relationships with insulin resistance and type 2 diabetes mellitus (T2DM). This study sought to compare the histological alterations observed in morbidly obese individuals with and without T2DM who underwent Roux-en-Y gastric bypass.
View Article and Find Full Text PDFBackground: The occurrence of gallstones following Roux-en-Y gastric bypass (RYGB) has been extensively reported. As RYGB promotes improvement in insulin resistance (IR), which is one of the factors enrolled in the pathophysiology of gallstones, this study aims to determine the influence of IR and its post-RYGB course on the development of gallstones.
Methods: This is a prospective cohort study that enrolled 108 morbidly obese subjects free of gallstones which underwent RYGB and were followed up for 24 months, through clinical, laboratory, and ultrasound examinations.
Background: Nonalcoholic fatty liver disease (NAFLD) is common among subjects who undergo bariatric surgery and its postsurgical improvement has been reported. This study aimed to determine the evolution of liver disease evaluated through NAFLD fibrosis score 12 months after surgery.
Methods: It is a prospective cohort study which evaluated patients immediately before and 12 months following Roux-en-Y gastric bypass (RYGB).