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Biomedical subjects

A Cosme

Publications and source records attributed to A Cosme.

At least 37 records · Page 2Linked to original sources
PubMed2000

Pyogenic liver abscesses of bacterial origin. A study of 45 cases.

OBJECTIVE: to determine the clinical, microbiological, diagnostic and therapeutic characteristics of pyogenic liver abscesses of bacterial origin. METHODS: retrospective analysis of pyogenic liver abscesses diagnosed at the Aránzazu Hospital in San Sebastián (northern Spain) between 1989 and 1998. RESULTS: we studied 45 patients with pyogenic liver abscesses of bacterial origin (30 men, 15 women, mean age 61 years 11 months). The site of the liver abscess was biliary in 28.9% of the patients, portal in 11.1%, and unknown in 33.3%. Elevated erythrocyte sedimentation rate (95.5%), leukocytosis (86.7%) and fever (82.2%) were the most frequent clinical and laboratory findings. The abscesses were solitary in 55. 5% of the patients. Echography was diagnostic in 68.4% of patients, and computed tomography was diagnostic in 100%. Cultures of pus from the abscess and blood were positive in 77.1% and 50% respectively. Of the abscesses diagnosed as being of bacterial origin, 44.4% involved multiple organisms. Escherichia coli and Streptococcus milleri were the germs isolated most frequently. Percutaneous drainage was done in 22 patients (48.9%), with satisfactory results in 18. Overall mortality related with abscesses was 15.5%. CONCLUSIONS: the clinical presentation of pyogenic liver abscess did not vary during the study period. Computed tomography is fundamental for diagnosis and treatment. Percutaneous drainage associated with early antibiotic therapy is the treatment of choice.

Adult↗
PubMed1999

[Spontaneous bacteremia due to Salmonella hadar in liver cirrhosis with transjugular intrahepatic portosystemic shunt].

Bacteriemia is a frequent infection in patients with hepatic cirrhosis, which is associated with a high mortality. Spontaneous bacteriemia is generally caused by gramnegative bacilli. We present an episode of Salmonella hadar's spontaneous bacteriemia in a patient with cirrhosis of the liver and transjugular intrahepatic portosystemic shunt. The role of the prosthesis in the pathogenesis of bacteriemia in hepatic cirrhosis is discussed.

Bacteremia↗
PubMed1999

[Bleeding of the upper digestive tract due to gastric metastasis of squamous lung carcinoma].

Bronchogenic lung carcinoma, melanoma and breast cancer are the neoplasms which have most frequently been reported to metastasize to the stomach. These lesions are usually located on the fundus and on the upper part of the gastric body. They are usually asymptomatic with the diagnosis being made at necropsy. We present a patient who developed gastrointestinal bleeding as the first symptom of squamous lung cancer secondary to a gastric metastasis.

Carcinoma, Squamous Cell↗
PubMed1998

[Cholestatic acute hepatitis induced by amoxycillin-clavulanic acid combination. Role of ursodeoxycholic acid in drug-induced cholestasis].

We report two cases of acute hepatotoxicity after treatment with amoxicillin-clavulanic. Viral hepatitis serology and autoantibodies were negative. Biliary tree obstruction and other etiologies were excluded. After discontinuation of the drug the evolution was favorable with clinical improvement and normalization of liver tests. Liver biopsy made in one patient showed cholestasic hepatitis with hepatocellular necrosis and other patient was treated with ursodeoxycholic. Also, we analyse potential utility of ursodeoxycholic acid administration in toxic cholestasis.

Aged↗
PubMed1998

[Incidence and clinical features of splenic abscesses, with special reference to tuberculous etiology in a general hospital].

BACKGROUND: The aim of this revision is to know the incidence of splenic abscess (SA) in our hospital, its etiology, with special reference to tuberculosis, and clinical characteristics. PATIENTS AND METHODS: Abdominal CT-scan performed during the period 1987-1997, with the diagnosis of splenic abscess were reviewed. Etiologic diagnosis standed on blood or sputum cultures, PAAF and/or histologic study of lymph nodes. RESULTS: Seventeen cases of SA were obtained, 12 males and 5 females. Limits of age: 13 and 77 years. The causal microorganisms were: M. tuberculosis (7), Mycobacterium aviumintracellulare (1), S. aureus (2), S. anginosus (1), S. milleri (1), E. coli (1), C. albicans (1), T. biguelle (1) and polymicrobian flora (1). One case was of unknown etiology. Underlying illnesses were: AIDS (7), malignant neoplasms (3), diabetes (2), endocarditis (2), Sjögren syndrome (1) and complications of abdominal surgery (2). Clinical presentation in nontuberculous splenic abscess was fever and upper-left abdominal pain. Predominant symptoms in tuberculous splenic abscess were fever and weight loss. Blood cultures were positive in 80% of non tuberculous splenic abscess. Specific treatment for tuberculosis improved all patients with tuberculous splenic abscess, without needing surgery or corticosteroids. CONCLUSIONS: From the total of splenic abscess, 41.1% were tuberculous, six with AIDS and one with Sjögren syndrome. Diabetes and malignant neoplasms were the commonest underlying illnesses in the non-tuberculous. In these, clinical presentation consisted in fever and upper-left abdominal pain. In patients with tuberculous splenic abscess, the main complaint was weight loss. A prompt treatment is generally succesful.

Abscess↗
PubMed1997

Blood-group phenotypes, sulfomucins, and Helicobacter pylori in Barrett's esophagus.

Barrett's esophagus, morphologically analogous to gastric intestinal metaplasia, often precedes the development of esophageal adenocarcinoma. In the stomach, expression of sulfomucins and aberrant Lewis(a) (Le[a]) antigen is an excellent predictor of premalignant progression, and Helicobacter pylori infection is a crucial determinant for the development of atrophy, metaplasia, and adenocarcinoma. In the esophagus, the significance of sulfomucin expression is controversial, the aberrant expression of Le(a) has not been explored, and the role of H pylori in the evolution of preneoplastic conditions is unknown. We investigated in 155 patients referred for endoscopy the association of Barrett's esophagus with expression of sulfomucins, Lewis, secretor, and ABO phenotypes, and H pylori infection. We report a subtype of intestinal metaplasia, present in all patients with esophageal adenocarcinoma, similar to gastric intestinal metaplasia of colonic type (type III or incomplete), that expresses sulfomucins and aberrant Le(a) in goblet and columnar cells. Lewis(a+b-), nonsecretor and blood group A phenotypes, were all positively associated with esophageal adenocarcinoma, suggesting a genetic susceptibility. H pylori infection was detected in 75% of patients with esophageal adenocarcinoma.

ABO Blood-Group System↗
PubMed1997

Lewis, secretor, and ABO phenotypes, and sulfomucin expression in gastric intestinal metaplasia.

The closely interrelated Lewis, secretor, and ABO phenotypes have long been linked to the risk of peptic ulcers and gastric cancer and may modulate the interaction between Helicobacter pylori and the gastric surface epithelium. We explored the association between the expression of sulfomucins in gastric intestinal metaplasia, a known marker of preneoplastic progression, and the expression of Lewis, secretor, and ABO phenotypes, in 523 subjects from Nariño, Colombia, and 856 subjects from northern Spain. In both study populations, Lewis (a+/b-) and nonsecretor phenotypes showed a significant positive association with the expression of sulfomucins (odds ratios, 2.4 and 2.6, respectively).

ABO Blood-Group System↗
PubMed1997

Spontaneous rupture of the liver in amyloidosis.

Hepatic rupture is an unusual complication of hepatic amyloidosis. We report the case of a 59-yr-old man with a subcapsular hematoma of the liver with hepatic rupture secondary to amyloidosis. The patient died during the surgery. The etiology, pathology, diagnosis, and treatment of this complication are discussed. Previously reported cases of subcapsular hematoma of the liver secondary to amyloidosis are reviewed. This knowledge and an awareness of the possible diagnosis will help to decrease the high mortality rate associated with this complication.

Adolescent↗
PubMed1997

[Menetrier disease associated with ulcerative colitis. Response to the treatment with octreotide. Review of the diagnostic criteria and etiopathogenesis].

The case of a patient with Ménétrier's disease in association with inactive ulcerative colitis of 7 years of evolution is presented. Diagnosis was confirmed by exploratory laparotomy and the symptoms of anemia and hypoproteinemia improved following treatment with octreotide. On review of the literature this was found to be the third case of Ménétrier's disease associated with ulcerative colitis described in the world literature. A possible relationship with an increase in alpha TGF is suggested. The diagnostic criteria and the possible etiopathogenic factors of the disease are herein reviewed.

Colitis, Ulcerative↗
PubMed1997

[Hepatotoxicity caused by cloxacillin].

We describe acute mixed hepatitis (cholestatic and hepatocellular) in two women probably induced by cloxacillin. Viral causes, autoimmune hepatitis, biliary tree obstruction and other risk factors were excluded. After discontinuation of the drug evolution was favorable and clinical signs and hepatic laboratory tests became normal in both cases. We also review the literature about hepatotoxicity induced by anti-Staphylococci semisynthetic penicillins.

Acute Disease↗
PubMed1997

[Chronic anemia and intestinal pseudoobstruction as presentation form of hamartomatous polyp of the Vater's ampulla].

We report the case of a 70-year-old female with chronic anemia and intestinal pseudoobstruction from a large hamartomatous polyp of the ampulla of Vater. The patient had been operated by obstructive jaundice of possible biliary etiology and a cholecystojejunostomy was performed. Later, due to cholangytis of unknown etiology cholecystectomy and choledochoduodenostomy were done. The polyp was resected by surgery.

Aged↗