Drenagem endoscópica de abscesso pancreático

Surgical drainage is still considered the gold standard treatment of pancreatic abscess. Patients with high surgical risk, however, require alternative therapy. The authors report three cases of pancreatic abscess that were treated endoscopically. In patients who met endoscopic drainage criteria, treatment was effective, though one case did require surgical intervention as a result of gastric puncture point bleeding. After this initial experience, we believe that endoscopic drainage should be considered in selected cases.

Complicação da banda gástrica ajustável videolaparoscópica para tratamento da obesidade mórbida: extrusão da banda

Various options for surgical treatment of morbid obesity have been developed with varying results: vertical banded gastroplasty with intestinal by-pass, disabsorptive surgeries and laparoscopic adjustable gastric banding. Although all of them have been effective in weight loss, lower rates of early and late postoperative complications have been described in some procedures. Laparoscopic adjustable silicone gastric banding (LASGB) has a similar principle as vertical banded gastroplasty and it is a minimally invasive procedure, with low systemic and operative problems, but not free of them. We report two rare cases of this complications of LASGB.

O uso do tubo colônico bipediculado microcirúrgico na reconstrução do esôfago

In some cases of esophageal reconstruction, it is not possible to use the gastric tube. In those cases, the second option is the reconstruction with a colonic segment. In the present paper, the authors present the use of microsurgical technique to improve vascular supply in esophageal reconstructions using the colon. Therefore, the transposed segment becomes perfused by two vascular pedicles: a proximal one and a distal one. The authors describe a case of 52 years-old patient, suffering of middle third esophagus carcinoma, who underwent a primarily esophageal resection with an unsuccessful reconstruction using gastric transposition. A new reconstruction was proposed using a bipedicle microcirurgical colonic tube, four months later. The post operative was uneventful with rehabilitation of swallowing and satisfactory recovery of nutritional state.

Improving strategic decision-making with simulation based decision support systems

Combating climate change is one of the key tasks of humanity in the 21st century. One of the leading causes is carbon dioxide emissions due to usage of fossil fuels. Renewable energy sources should be used instead of relying on oil, gas, and coal. In Finland a significant amount of energy is produced using wood. The usage of wood chips is expected to increase in the future significantly, over 60 %. The aim of this research is to improve understanding over the costs of wood chip supply chains. This is conducted by utilizing simulation as the main research method. The simulation model utilizes both agent-based modelling and discrete event simulation to imitate the wood chip supply chain. This thesis concentrates on the usage of simulation based decision support systems in strategic decision-making. The simulation model is part of a decision support system, which connects the simulation model to databases but also provides a graphical user interface for the decisionmaker. The main analysis conducted with the decision support system concentrates on comparing a traditional supply chain to a supply chain utilizing specialized containers. According to the analysis, the container supply chain is able to have smaller costs than the traditional supply chain. Also, a container supply chain can be more easily scaled up due to faster emptying operations. Initially the container operations would only supply part of the fuel needs of a power plant and it would complement the current supply chain. The model can be expanded to include intermodal supply chains as due to increased demand in the future there is not enough wood chips located close to current and future power plants.

Cisto de duplicação gástrica com parênquima pancreático ectópico em adulto assintomático

The authors describe a rare case of a gastric duplication cyst in a 55-year-old man. The past history revealed that the patient was treated one year before for gastroduodenal ulcer. The cyst was discovered incidentally at upper gastrointestinal endoscopy. Biopsies showed inflammation without evidence of tumor. On abdominal ultrasonography and CT scan, a left upper quadrant mass was noted. At laparotomy, a mass measuring 6,0 cm in contact with the stomach was excised. Histopathology showed a gastric duplication cyst containing pancreatic mucosa.

Úlcera gástrica terebrante e pancreatite aguda provocadas por tricobezoar

Bezoar is a foreing body whitin the digestive tract originated from ingestion of varied substances, mainly vegetal fiber or hair. We present a case of a 14-year-old girl with trichotillomania, gastric trichobezoar, gastric ulcer and acute pancreatitis. The patient was operated on for anterior gastrotomy and removal of trichobezoar, with good postoperative follow-up. We illustrate this case to emphasize the need for recognition of gastric ulcer with acute pancreatitis and surgical management.

Tricobezoar gastro-duodeno-jejunal: abordagem videolaparoscópica

Trichobezoars are gastric concretions of hair that sometimes extend throught the intestine. We report on a patient with trichobezoar managed by videolaparoscopic extraction, and discuss the advantages and disadvantages of this method, that can be the treatment of choice of this conditions.

Tumor carcinóide de estômago tipo 1

Gastric carcinoid occurs in less than 1% of gastric neoplasias and around 2% of carcinoids tumors. They are classified into three forms: type 1, associated with atrophic gastritis, type 2, associated with multiple endocrine neoplasia 1 and Zollinger Ellison syndrome, and type 3, a sporadic tumor. This study report a case of gastric carcinoid type 1, which manifested with chronic anemia, dyspeptic symptoms and hypergastrinemia. A 44 years old female patient, presented multiple lesions with diameter between 3 and 20 mm, with lynphonodal metastases. A total gastrectomy was performed associated with lymphnodes ressection and Y Roux reconstruction.

Leiomiossarcoma do esôfago

The authors describe a case of esophageal leiomyosarcoma treated at the Abdominopelvic Surgery Department of the Brazilian National Cancer Institute, including literature review, addressing treatment and prognosis. A 45 year-old female patient complaining of dysphagia, with pre-operative exams sugestive of esophageal leiomyoma. She was submitted to an esophagusgastrectomy with digestive reconstitution using a gastric tube brought through the posterior mediastinum. The histopathological examination and immunohistochemical tests confirmed that the tumor was an esophageal leiomyosarcoma. She is at the 7th year of follow up with no recurrence nor digestive complains.

Hemorragia digestiva por tumor estromal gástrico

Gastrointestinal stromal tumors account for 0.1 to 3% of all resected gastric tumors and are the most common submucosal mass found in the stomach. Preoperative diagnosis is often difficult; consequently surgery is the best and only option on most cases. There are studies with different surgery techniques based on tumors location. The reported case led us at literature review with the intent of establishing preoperative diagnosis, therapeutic strategies and prognosis.

Rotura gástrica por barotrauma

Barogenic rupture of the stomach is a rare complication following cardiopulmonary resuscitation, administration of nasal oxygen by catheter and diving accidents. We report a case of gastric barotrauma following oroesophageal intubation. In most cases, the tears occur along the lesser curvature, what have been already attributed to Laplace's formula and, more recently, to morphological features of the stomach.

Câncer gástrico após gastroplastia para obesidade mórbida

We report a case of patient in whom a gastric remnant cancer developed about five years after a gastric bypass for morbid obesity. We review the literature on gastric cancer after gastroplasty. Access of gastric remnant after gastroplasty (Fobi-Capella) prevents evaluation and treatment of its disorders.

Hérnia de bochdalek em adulto

Bochdalek´s hernia is a congenital malformation of the posterolateral diaphragm region. It is more common on the left and more frequently seen in newborns and rare in adults, with over a few 100 reported cases. We present a case of Bochdalek´s hernia in a 49-year-old patient with long term dyspeptic symptoms. The upper endoscopy showed a gastric fundus herniation sliding into the chest through the diaphragmatic defect. The patient also presented with a rare pulmonary malformation diagnosed during surgery. It was corrected through thoracic approach with no other complications.

Adenocarcinoma e tumor estromal (GIST) sincrônicos no estômago: uma rara ocorrência

A concomitant epithelial and stromal tumor in stomach is unusual in the literature. The purpose of this paper is to report the case and it's therapeutic management. A 72 year old black male patient , which upper digestive endoscopy showed a gastric neoplasm (Borrmann III) at incisura angularis and the biopsy revealed adenocarcinoma. A subtotal gastrectomy with D2 limphadenectomy and Roux-en-Y reconstruction was performed. The histopathology studies confirmed an adenocarcinoma and a gastric stromal tumor, whose immunohistochemical exam was compatible to GIST. Seventeen months after surgery, a computadorized tomography revealed a retrogastric tumor and laparotomy was indicated to remove the lesion.

Câncer gástrico de origem estromal: relato de caso

Gastrointestinal Stromal Tumor (GIST), despite rare, is the most common digestive tract mesenchymal tumor. Modern histogenesis studies have shown its stromal origin and not a muscular origin as it had been believed before. Diagnosis is made through immunohistochemical studies (CD- 117) and treatment is achieved with surgery followed by chemotherapy and has good results. The authors describe a case of gastric GIST discovered after upper gastrointestinal bleeding presentation, and treated successfully.