Biomedical subjects

B Oller Sales

Publications and source records attributed to B Oller Sales.

13 recordsLinked to original sources

PubMed1992

Lower respiratory tract infections after abdominal operations: epidemiology and risk factors.

OBJECTIVE: To find out the incidence and aetiology of lower respiratory tract infections after abdominal operations and identify predisposing factors. DESIGN: Prospective open study. SETTING: Department of General Surgery, Hospital Germans Trias i Pujol, Barcelona, Spain. SUBJECTS: 2,083 patients having abdominal operations between March 1985 and June 1987 excluding splenectomies, and those requiring thoracoabdominal incisions. MAIN OUTCOME MEASURES: The presence of three or more of the following: temperature of 38 degrees C or more, cough with mucopurulent sputum, raised white cell count, or changes on the chest radiograph or bronchogram. RESULTS: 50 patients (2.4%) developed lower respiratory tract infections. Micro-organisms were isolated from 15 (30%), the most common being Haemophilus influenzae. The most important risk factors were American Society of Anesthesiologist's grade, duration of anaesthesia, age, and operations on the upper gastrointestinal tract. CONCLUSION: Further work is needed to investigate other possible predisposing factors and develop a predictive score.

Abdomen↗

PubMed1991

[The effect of duodenal exclusion on the cellular endocrine adaptation of the duodenum after performing an antrectomy. An experimental study in the rat].

We present an experimental study in rats with the aim to value the adaptative variations over the duodenal gastrin and somatostatin cell producing populations after antrectomy and gastrojejunostomy. 30 animals were distributed into two groups of 15 animals each. Group 1 rats underwent antrectomy and gastrojejunostomy, the animals of group 2 were considered as a controls. The results obtained show that after antrectomy and gastrojejunostomy an increase of gastrin producing cells is produced as well as decrease of somatostatin producing cells, both figures are statistically significant, concluding that the duodenum is able to supply the gastric antrum in gastrin production while the duodenal somatostatin cell producing population is negative influenced by the absence of alimentary stimuli and gastric secretions.

Adaptation, Physiological↗

PubMed1991

[Hematoma of the abdominal wall and subcutaneous calcium heparin].

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Abdominal Muscles↗

PubMed1991

[Adaptation mechanisms to the short intestine. Influence of the biliopancreatic factor: experimental study].

Massive small bowel resection that results in short bowel syndrome brings about regulatory mechanisms in the remaining intestine aimed at preventing the ensuing malabsorption. The purpose of the present study was to determine the role of pancreatic and biliary secretions in intestinal adaptation after small bowel resection. To do so, both pancreatic and biliary fluids were prevented from reaching the lumen of most of the small bowel. Four groups of animals were prepared: I) control group; II) eighty percent small bowel resection; III) duodenoileal by-pass; and IV) duodenoileal by-pass plus small bowel resection. After a fifteen days recovery period, the following were recorded: animal weight; plasma protein, BUN, cholesterol, glucose, and Ca++; the length and diameter of the jejunum and ileum, the height of the mucosal layer, and microvilli density. Intestinal adaptation was excellent in animals after small bowel resection. All animals in group IV died due to severe malabsorption. Diversion of pancreatic and biliary juice in animals with duodenoileal by-pass did not prevent intestinal adaptation. We conclude that the effect of pancreatic and biliary juice on intestinal adaptation is additive to that of other putative hormonal mechanisms.

Adaptation, Physiological↗

PubMed1990

[Adaptive duodenal endocrine cell changes after antrectomy. Experimental study in the rat].

The known gastric endocrine relationship between "G" cells and "D" cells is altered after the loss of antral "G" cell population after antrectomy, leading to physiologic adaptative changes over the cell population producing gastrin and somatostatin in the duodenum, replacing thus the endocrine function of the resected gastric antrum. In this experimental study, Sprague-Dawley rats have been randomized in two groups, Control and Antrectomy with gastroduodenostomy, maintaining the alimentary stimulation of the duodenum. Endocrine "G" and "D" cell studies have been carried out by immunohistochemical staining with an Avidin-Biotin affinity technique. The statistical method used was the "t" test of Student. The results demonstrated a significant increase of the duodenal "G" cell population without changes of the duodenal "D" cell population after antrectomy and gastroduodenostomy. The endocrine cell ratio "G/D" in the duodenum increases due to the loss of antral gastrin release and the decrease of gastric acid output provoked by antrectomy.

Adaptation, Physiological↗

PubMed1989

[Degenerated papillomatosis of the bile duct].

Papillomatosis of the biliary ducts is exceptional. It is defined by the presence of multiple, benign, papillary type, epithelial tumors on the choledochus and hepatic ducts, and can also effect the gallbladder and intrahepatic bile ducts. It courses with a tendency to recurrence and secondary degeneration, and its prognosis is uncertain and sometimes grave. The treatment is surgical and depends on the extension of the lesions, often being only palliative. The techniques of choice are curettage and biliodigestive derivation. A case is presented of degenerated papillomatosis treated by cephalic duodenopancreatectomy and cholecystectomy.

Adenocarcinoma↗

PubMed1989

[Leiomyosarcoma of the small intestine].

Leiomyosarcoma of the small intestine is a rare neoplasm that has a difficult, and normally late, diagnosis. We present two cases operated in our service and discuss the different forms of clinical presentation, the surgical strategy and the controversial aspects of benignity and malignancy aspects. The survival is emphasized.

Aged↗

PubMed1987