[Budd-Chiari syndrome. Report of 2 surgical cases].

Two female patients with Budd-Chiari syndrome and suffering of Polycythemia Vera are reported. Both patients were operated performing a central spleno renal shunt with preservation of the spleen and ligation of the splenic artery. The patients are well 6 and 24 months after the operation respectively.

[Disseminated histoplasmosis in a patient with acquired immunodeficiency syndrome].

A twenty nine year old male homosexual presented with malaise, weight loss, fever and profuse sweating. An ill defined abdominal mass was found during physical examination in the right lower quadrant and chest X rays disclosed a pleural effusion. HIV antibodies and hepatitis B surface antigen were positive and immunological parameters were altered.

[Gestational choriocarcinoma in a tubal pregnancy].

We report a gestational choriocarcinoma arising in a tubal ectopic pregnancy. Unilateral salpingectomy and single agent methotrexate chemotherapy achieved a cure. A follow up of two years revealed no evidence of recurrence.

[Respiratory complications in severe acute pancreatitis].

Respiratory complications are important causes of mortality in severe acute pancreatitis. We analyzed the pleuropulmonary complications that occurred in a series f 63 patients with severe acute pancreatitis. The most frequent were respiratory failure (52.

[Acalculous acute cholecystitis caused by Cryptosporidium in a patient with AIDS].

We report a patient with the acquired immunodeficiency syndrome who developed acute cholecystitis. Removal of the gallbladder revealed infection by Cryptosporidium spp. The clinical course after cholecystectomy was favourable.

[Treatment of non-variceal upper digestive hemorrhage with endoscopic thermocoagulation].

Over a year period, 60 of 172 patients presenting with upper gastrointestinal bleeding were treated by endoscopic thermocoagulation. Entry criteria included active bleeding (pulsatile or oozing), a visible vessel, sentinel clot or the presence of a pigmented protuberance at the ulcer crater. Hemostatic therapy was performed using the heat probe.

[Duodenal villous adenoma. Report of 2 cases].

The case history, diagnosis and management of 2 pts with villous adenoma of the duodenum are reported. Both were operated on with good results, with no relapse at 12 and 18 months of observation. This tumor which is more frequently located in the vicinity of the Vater Ampullae, has a low incidence.

[Incipient and intermediate gastric cancer II. Anatomo-pathological and surgical aspects. Cooperative study in 13 hospitals].

Anatomic and surgical characteristics of 233 pts with early, and 120 with intermediate gastric cancer, from 13 hospitals in Chile are analyzed. 63% had depressed or excavated lesions. Most of the tumors were located in the inferior or middle third, while only 17% of the early carcinomas were found in the superior third of the stomach, specially in the lesser curvature.

[Acute severe pancreatitis. Analysis of mortality and morbidity].

Sixty-three patients with severe acute pancreatitis have been studied. Pancreatitis was associated with biliary tract disease in 23 patients (36.5%) and with alcoholism in 21 (33.

[Sudden unexpected nocturnal death: report of a case and review of the literature].

Sudden death usually affects individuals with severe heart disease. A more dramatic phenomenon is the sudden unexpected death of individuals with no evidence of heart disease. It has been described mainly in young healthy males under severe stress.

[Regeneration of gastric mucosa after endoscopic biopsy].

Eleven gastric mucosal defects produced by endoscopic biopsy in non-tumoral areas were histologically studied in gastrectomy specimens. The biopsies had been performed from one up to seven days before the operation. The base of each defect was formed by submucosa infiltrated by erythrocytes, fibrin and neutrophils, which were later replaced by small blood vessels, fibroblasts and collagen fibrils.

Malignant papillomatosis of the common bile duct. A case diagnosed by endoscopic retrograde cholangiopancreatography.

Bile duct papillomatosis is a rare entity with a high risk of malignant change. We report the case of a 60-year-old man with malignant papillomatosis of the distal common bile duct and a separate carcinoma of ampulla of Vater. The patient had previously undergone surgery for acute cholecystitis and common bile duct calculi.

[The medical treatment of intestinal obstruction due to adhesions and adherences].

Adhesions are the most common cause of intestinal obstruction. Medical treatment for those patients with no signs of vascular involvement has been successful in many cases. We reviewed the clinical records of 87 patients with intestinal obstruction due to adhesions, having a total of 122 episodes.

Catabolism of chylomicron remnants in patients with previous acute pancreatitis.

A recent study reports that patients with previous acute pancreatitis commonly have an abnormal clearance of serum triglycerides after an oral fat load. This observation supports the hypothesis that patients with previous acute pancreatitis and normal fasting serum triglyceride levels may have a preexistent abnormality in the metabolism of chylomicrons. To test this hypothesis, the catabolism of chylomicrons and their remnants was studied in a series of 7 patients who had sustained an attack of pancreatitis (2, gallstone related; 2, alcohol ingestion; 1, hydatid cyst; and 3, no associated pathological condition) at least 18 mo earlier.

[Abdominal actinomycosis: review apropos of 3 cases].

Actinomycosis is a chronic bacterial infectious disease, characterized by multiple abscesses, draining sinuses and abundant dense fibrous tissue. The intra-abdominal variety is rarely found and difficult to diagnose. We report three cases of intra-abdominal actinomycosis successfully treated by surgery and by longterm antibiotic therapy.

Indirect determination of phosphate with chloranilic acid.

An indirect titrimetric method for determination of phosphate is based on precipitation with excess of bismuth, and titration of the surplus with chloranilic acid, the end-point being determined biamperometrically.

[Endoscopic sclerotherapy of esophageal varices with 80% alcohol. Experience with 46 cases].

We are presenting the results obtained by endoscopic sclerotherapy with 80% alcohol in fifty-five patients with upper GI bleeding caused by esophageal varices, with or without active bleeding at the moment of the endoscopic study. We obtained control of bleeding in 83.64% with a recurrence of bleeding of 16.

[Duodenal obstruction caused by cholelithiasis (Bouverets' syndrome): a clinical case].

A 55 year old man presented with vomiting, abdominal pain, diarrhea, jaundice and choluria. An obstruction of the gastric outlet by a large gallstone located at the duodenum was demonstrated by radiologic, ultrasonographic and endoscopic examinations. The stone could not be removed through endoscopy and the patient was successfully operated on.

[Gastric cancer: surgical results and survival].

From 1975 to 1984, 292 patients with gastric cancer were treated according to a prospective and standardized surgical protocol. This series included 195 men and 97 women, with an average age of 62.5 +/- 11 years (SD).

[Value of preoperative colonoscopy in colon-rectal neoplasms].

The surgical approach to treat colo-rectal carcinoma is usually based on the findings of barium enema. In 102 patients we reviewed the yield of pre-operative colonoscopy. Barium enema revealed the cancer in 76 of 84 patients (91%), whereas colonoscopy did so in 96 of 102 subjects (94%).