Completion thyroidectomy is defined as the surgical removal of the remnant thyroid tissue following procedures less than total or near-total thyroidectomy. The extent of surgical management for differentiated thyroid carcinoma (DTC) is controversial. Although some authors advocate subtotal thyroidectomy with lower complication rates, total or near-total thyroidectomy and completion thyroidectomy have been defended by others because of the improved survival and lower morbidity that is comparable with subtotal thyroidectomy. In this study, the incidence of residual tumor and surgical complication rates in patients who underwent completion thyroidectomy were investigated. The medical records of 165 patients undergoing completion thyroidectomy for DTC were reviewed. Seventy-seven (46.6%) of these patients were found to have residual tumor in the remaining thyroid tissue. Anaplastic transformation developed in two of these patients. Permanent bilateral recurrent laryngeal nerve palsy occurred in three patients, and permanent hypoparathyroidism was seen in one patient. We recommend completion thyroidectomy as an efficient and safe method of surgical treatment with a low complication rate for DTC.
Gastric adenocarcinoma can be divided into two histopathological types: intestinal and diffuse. In addition to the role of environmental factors, an association between gastric cancer and Helicobacter pylori has been suggested. A retrospective study was therefore carried out among 46 patients who had gastric cancer. As a control group, 40 patients with non-malignant disorders were selected (11 patients with peptic ulcer, 12 with chronic superficial gastritis, 17 with chronic atrophic gastritis). Twenty-six cancers were classified as intestinal type and 20 as diffuse type. H. pylori was found in 23 (88 per cent) of the intestinal type and 11 (55 per cent) of the diffuse type (P < 0.05). Patients with the intestinal-type gastric cancer had a higher prevalence of H. pylori infection than those with gastric ulcer (55 per cent) and chronic superficial gastritis (50 per cent) (P < 0.05). These findings suggest that there is a possible association between the intestinal type of gastric cancer and H. pylori infection.
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