UMBILICAL AND EPIGASTRIC HERNIA REPAIR: A SYSTEMATIC REVIEW.

Background: Umbilical and epigastric hernias are among the most common hernias of the abdominal wall; however, there is a lack of standardization for their treatment.

Aims: To clarify the controversies regarding therapeutic possibilities, indications, and surgical techniques for umbilical and epigastric hernia repair.

Methods: A systematic review and qualitative analysis of randomized clinical trials published in the last 20 years, involving adults (aged 18 years and over) with umbilical and/or epigastric hernias, was performed by systematically searching the PubMed/Medline, Cochrane, SciELO, and LILACS databases.

ASYMPTOMATIC CHOLELITHIASIS: EXPECTANT OR CHOLECYSTECTOMY. A SYSTEMATIC REVIEW.

Background: Asymptomatic cholelithiasis is a highly prevalent disease, and became more evident after the currently greater access to imaging tests. Therefore, it is increasingly necessary to analyse the risks and benefits of performing a prophylactic cholecystectomy.

Aims: To seek the best evidence in order to indicate prophylactic cholecystectomy or conservative treatment (clinical follow-up) in patients with asymptomatic cholelithiasis.

SEROUS CYSTADENOMA OF PANCREAS: WHY THERE IS LOW ACCURACY IN IMAGING EXAMS?

Aim: Many patients with serous cystadenoma of the pancreas (SCP) underwent surgery due to diagnostic doubt. The aim of this study was to analyze the causes of low accuracy in diagnosing SCP.

Methods: This is a retrospective study of patients with SCP from a database of two hepatopancreatic biliary surgery outpatient clinics between 2006 and 2020.

Non-inflammatory pancreatic cysts: from diagnosis to treatment (97 cases series).

Objective: to describe the implications of the diagnosis and treatment of non-inflammatory pancreatic cysts in a series of patients.

Methods: we included patients with pancreatic cysts ≥1.0 cm, excluding those with a presumptive diagnosis of a pseudocyst.

Importance of esophageal pH monitoring and manometry in indicating surgical treatment of gastroesophageal reflux disease.

Objective: To demonstrate the need of performing esophageal pH monitoring and manometry in patients with clinical suspicion of Gastroesophageal reflux disease, as more accurate and practical complementary exams in the indication of surgical treatment.

Methods: A systematic review was carried out in the PubMed/Medline database, based on the recommendations of the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) protocol, selecting studies in humans, published in Portuguese, Spanish, and English, from January 1, 2009 to August 5, 2020. The following descriptors were used: "reflux gastroesophageal" AND "surgery" AND "surgical treatment" AND "esophageal manometry" OR "pH monitoring".

Meckel's Diverticulum Perforation by Foreign Body: A Case Report.

Meckel's diverticulum is the most common gastrointestinal congenital defect, which, although asymptomatic in adults, may present symptoms in obstruction, inflammation, bleeding and foreign body perforation. There are only 8 reported cases of Meckel's diverticulum perforation by chicken bone. We report a case of a 24-year-old man presenting a 2-day-history of periumbilical pain that shifted to the right lower quadrant in 24 hours.

THE ACCEPTANCE OF CHANGES IN THE MANAGEMENT OF PATIENTS WITH ACUTE PANCREATITIS AFTER THE REVISED ATLANTA CLASSIFICATION.

Background: New recommendations for the management of patients with acute pancreatitis were set after the Atlanta Classification was revised in 2012.

Objective: The aim of the present systematic review is to assess whether these recommendations have already been accepted and implemented in daily medical practices.

Methods: A systematic literature review was carried out in studies conducted with humans and published in English and Portuguese language from 10/25/2012 to 11/30/2018.

DIAGNOSIS, TREATMENT AND FOLLOW-UP OF BARRETT'S ESOPHAGUS: A SYSTEMATIC REVIEW.

Background: Barrett's esophagus (BE) is a premalignant condition that raises controversy among general practitioners and specialists, especially regarding its diagnosis, treatment, and follow-up protocols.

Objective: This systematic review aims to present the particularities and to clarify controversies related to the diagnosis, treatment and surveillance of BE.

Methods: A systematic review was conducted on PubMed, Cochrane, and SciELO based on articles published in the last 10 years.

Serous Pancreatic Cystadenoma with Compression of Wirsung's Duct.

Serous cystadenoma of the pancreas is a common cystic neoplasm typically of benign evolution that rarely communicates with the pancreatic ductal system. We present several images originating from two cases of serous cystadenoma of the pancreas which led to compression and dilatation of Wirsung's duct. These cases suggest that when the diagnosis of pancreatic microcystic lesion is detected, associated, or not associated with a central fibrous scar and a low carcinoembryonic antigen level in the aspirated fluid, the presence of dilatation of Wirsung's duct does not exclude the diagnosis of serous pancreatic cystadenoma.

Venous occlusion test applied to the tributaries of the superior mesenteric veins of the pancreas head infiltrated by tumor.

A 64-year-old white woman presented with cholestatic jaundice, weight loss and a solid lesion in the pancreas head. At multislice computed tomography, a superior mesenteric vein (SMV) and one of it tributaries showed signs of tumor infiltration. At surgery, a venous occlusion test applied to the infiltrated tributary of the SMV showed immediate venous congestion in two-thirds of the distal small intestine.

HYPERVASCULAR LIVER LESIONS IN RADIOLOGICALLY NORMAL LIVER.

Background: The hypervascular liver lesions represent a diagnostic challenge.

Aim: To identify risk factors for cancer in patients with non-hemangiomatous hypervascular hepatic lesions in radiologically normal liver.

Method: This prospective study included patients with hypervascular liver lesions in radiologically normal liver.

IMMEDIATE COMPLICATIONS AFTER 88 HEPATECTOMIES - BRAZILIAN CONSECUTIVE SERIES.

Background: Hepatectomies have been increasingly recommended and performed in Brazil; they present great differences related to immediate complications.

Aim: Assessing the immediate postoperative complications in a series of 88 open liver resections.

Method: Prospective database of patients subjected to consecutive hepatectomies over nine years.

MICROBIOLOGICAL ANALYSIS OF BILE IN PATIENTS WITH BENIGN AND MALIGNANT BILIOPANCREATIC DISEASES AND ITS CONSEQUENCES.

Background: Bactibilia has several consequences to human health.

Objetive: Assessing the bile microbiology of patients with biliopancreatic diseases in order to identify bacteria and their possible infectious complications.

Methods: Retrospective study of 30 bile culture samples from patients with benign and malignant biliopancreatic diseases.

Fifty consecutive pancreatectomies without mortality.

Objective: to report the group's experience with a series of patients undergoing pancreatic resection presenting null mortality rates.

Methods: we prospectively studied 50 consecutive patients undergoing pancreatic resections for peri-ampullary or pancreatic diseases. Main local complications were defined according to international criteria.

Outcomes from mesenteric-portal axis resection during pancreatectomy.

Background: Due to their complexity and risks, mesenteric-portal axis resection and reconstruction during the pancreatectomy procedure were not recommended back in the early nineties. However, as per technical improvements and the reduction in morbidity and mortality rates, they have been routinely indicated in large medical centers.

Aim: To show results from cases of patients subjected to mesenteric-portal axis resection during pancreatectomy.

Splenic vein graft for the reconstruction of the mesenteric-portal trunk after gastroduodenopancreatectomy.

Resection of the confluence of the superior mesenteric and portal veins has been performed most frequently in the treatment of adenocarcinoma of the pancreas, in view of the reported positive results, but it can also be used in cases of benign pancreatic neolpasias when they are strongly adhered to the mesenteric-portal trunk. Nevertheless, there is no study on the best type of venous grafts for reconstruction of the mesenteric-portal trunk when required. The choice of graft depends on the preference of the surgeon or the institution.

Appendicitis in double cecal appendix: Case report.

Unlabelled: Double cecal appendix is a rare anatomical variation. Approximately 100 cases have been reported worldwide. It is usually diagnosed incidentally during emergency appendectomies due to inflammatory processes in the cecal appendix.

Complications after pancreatectomies: prospective study after ISGFP and ISGPS new classifications.

Background: Scientific publications focusing on the results of pancreatic resections in Brazil are scarce.

Aim: To present the surgical results of pancreatic resections.

Methods: Were analyzed prospectively 54 consecutive cases of patients undergoing consecutive pancreatectomy evaluating the occurrence of postoperative complications (pancreatic fistula, delayed gastric emptying and postoperative hemorrhage) based on the criteria of the International Study Group on Pancreatic Fistula Definition and International Study Group of Pancreatic Surgery.

Animal model for training in sentinel lymph node biopsy of the stomach through combined methods.

Purpose: Create and validate a proposed animal model for training in sentinel lymph node biopsy of the stomach.

Methods: In thirty-two rabbits, through a laparotomy, they received a subserosal injection of 0.1 ml of phytate labeled with technetium-99m (0.

Perioperative care in an animal model for training in abdominal surgery: is it necessary a preoperative fasting?

Purpose: Demonstrate that the rabbit may be used in the training of surgery, in addition to present its perioperative care.

Methods: Thirty two animals, with age and weight, respectively, from 3 to 5.5 months old and 3000 to 4200 grams, were undergone different periods of pre-operative fasting, exclusive intramuscular anesthesia (ketamine+xylazine), laparotomy with total gastrectomy and total splenectomy.

[Idiopathic pneumoperitoneum: case report].

Idiopathic pneumoperitoneum is considered a rare condition, as only twenty cases have been described in the last thirty years. The authors report a case of idiopathic massive pneumoperitoneum in a patient aged 45, showing the possible causes of this clinical picture based on a review of medical literature.

American cutaneous leishmaniasis in the Pontal of Paranapanema - SP, Brazil: ecological and entomological aspects.

Unlabelled: American cutaneous leishmaniasis (ACL) occurs in epidemic outbreaks and in sporadic cases with small annual variation in the Pontal of Paranapanema, SP. There is little research on the sandfly fauna of this region. The last outbreaks were related to the Movement of the Landless Workers (MST) and with the ecological tourism in preserved forest of the Parque Estadual do Morro do Diabo (PEMD).

[Clinical diagnosis and anatomic-pathologic diagnosis: disagreements].

Unlabelled: Many pathologic entities in the clinical practice generate disagreements regarding its identification, not only by its likeness with other lesions but also by its semantics.

Background: The goal of this work is to clarify which disagreements are more frequent in the clinical practice, supply new knowledges to facilitate the identification of the larger pathologies controversies and to enlarge its differentials diagnosis.

Methods: We revised 1825 reports of referring biopsies to the period of 1992 up to 1999, belonging to the Laboratory of Pathological Anatomy of Unoeste, being excluded 439 lauds that did not introduce diagnostic hypothesis, or that had as signals hypothesis and clinical indications or "for clearing".