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S Tamames

Publications and source records attributed to S Tamames.

29 records · Page 2Linked to original sources
PubMedDate not supplied

DNA content by flow cytometry in gastric carcinoma: pathology, ploidy and prognosis.

BACKGROUND/AIMS: The prognostic relevance of histopathologic findings in gastric carcinoma is well established. Studies on DNA-ploidy are still scanty and contradictory. METHODOLOGY: Histopathologic parameters, DNA ploidy and S-phase were evaluated in 78 cancer patients curatively resected, using formalin-fixed paraffin-embedded tissue. RESULTS: Thirty-nine tumors (50%) were aneuploid. No significant correlation was found between histologic data and ploidy, but tumors with nodal involvement were more frequently aneuploid. In univariate analysis, tumor location (p=0.05), tumor size (p=0.01), differentiation grade (p=0.02), Lauren classification (p=0.01), deeper infiltration of gastric wall (p=0.001), nodal affectation (p=0.0000) and number of lymph nodes (p=0.01), TNM stage (p=0.0000), type of gastrectomy performed (p=0.04), and DNA ploidy (p=0.04) significantly influenced survival. S-phase values had no effect on prognosis. In the multiple regression model, factors independently associated with survival were TNM stage (p=0.0009), nodal affectation (p=0.01) and, marginally, ploidy (p=0.08). CONCLUSIONS: In gastric carcinoma curatively resected, the more relevant prognostic factors were stage and nodal involvement. Fifty percent of the tumors were aneuploid. Aneuploidy was significantly associated with poorer prognosis.

Adult↗
PubMedDate not supplied

Surgical management of malignant tumors of the esophagogastric junction: a retrospective review of 188 patients.

A series of 188 patients with cancer of the esophagogastric junction were operated from 1960 to 1985. Their age range was 18-79 years old and 73% were males. Mean duration of symptomatology was five months and 93% were affected by dysphagia. Surgery was limited to exploratory laparotomy in 17 patients (9%), feeding gastrostomy in 14 (7.5%), Celestin endoluminal tube in 31 (16.5%), jejunal by-pass in one and tumoral resection in 125 (66.5%). The predominant procedures of resection were total (64%) and proximal gastrectomy (28%). To restore digestive continuity, the stomach was used in 40 (32%) cases, jejunum in 67 (53.6%) and colon in 18 (14.4%). Eighty-eight per cent of tumors were adenocarcinomas. Seventeen per cent of patients died in the post-operative period: 18.4% following resection (17.5% following partial gastrectomy and 18.8% following total gastrectomy) and 14% following palliative measures. Five-year survival rates were 11.8% for resected cases, 8.7% for total gastrectomized patients and 18.2% for partial gastrectomized tumors.

Adenocarcinoma↗
PubMedDate not supplied

[Normal values for basal serum gastrin with and without stimulation].

In the present work we report a study of the basal gastrin serum levels and stimulated serum gastrin levels after an hyperproteic meal, in a group of 20 healthy volunteers, with neither actual nor previous digestive symptoms. 60% were males, with a mean age of 35, 7 years, the highest percentage (40%) belonging to the fourth decade of life. The procedure used to determine serum gastrin levels is described. The mean value of the 3 samples obtained in basal conditions was of 51.01 pg/ml. The mean value of the 6 samples obtained after the stimulation meal was of 73.4 pg/ml. The results obtained in this study are discussed and compared with the ones of the reviewed literature.

Adolescent↗