warfarin has been researched along with Thyroid-Neoplasms* in 4 studies
1 review(s) available for warfarin and Thyroid-Neoplasms
3 other study(ies) available for warfarin and Thyroid-Neoplasms
Article | Year |
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Impact of short-term hypothyroidism on systemic anticoagulation in patients with thyroid cancer and coumarin therapy.
Unlike hyperthyroidism, few data exist regarding the impact of hypothyroidism on systemic anticoagulation with coumarin derivates. Therefore, we evaluated a potential impact of short-term hypothyroid conditions on systemic anticoagulation with coumarin derivates in patients after complete thyroidectomy for treatment of thyroid cancer. Fifteen patients with differentiated thyroid cancers and continued international normalized ratio (INR)-adjusted therapy with coumarin derivates were included in this retrospective analysis. A total of 88 laboratory tests was analyzed. INR values were compared between thyroid-stimulating hormone (TSH) values greater than 10 and 10 mU/L or less. An INR value of less than 2.0 was defined as being out of the therapeutic range. Analysis of significant differences between categorized TSH and INR values were performed by using X(2) analysis, correlation of continuous TSH and INR values by using the Pearson's analysis. When TSH was greater than 10 mU/L (n = 50) the INR value was less than 2.0 in 76.0% (n = 38) cases. In contrast, the INR value was less than 2.0 in only 21.1% (n = 8; p < 0.0001) of patients with TSH of 10 mU/L or less (n = 38). Correlation between continuous TSH and INR values was r = -0.589 (p < 0.0001). Based on the results of the present study, it seems to be necessary to monitor the anticoagulation parameters more often in patients with hypothyroidism and either to correct the hypothyroid state, or in cases of desired hypothyroid conditions, to adjust the therapy with coumarin derivates in order to ensure a sufficient anticoagulation. Topics: Aged; Anticoagulants; Atrial Fibrillation; Coumarins; Female; Humans; Hypothyroidism; Male; Middle Aged; Retrospective Studies; Thyroid Neoplasms; Thyroidectomy; Thyrotropin; Venous Thrombosis; Warfarin | 2006 |
Apathetic thyrotoxicosis due to hemorrhage into a hyperfunctioning thyroid nodule after excessive anticoagulation.
Hyperfunctioning thyroid nodule was diagnosed in a 72-year-old woman. When the nodule reached a diameter of 3.5 cm, overt thyrotoxicosis of the apathetic type was precipitated by hemorrhage into the nodule during a period of excessive anticoagulation. All abnormal physical signs and symptoms as well as laboratory findings returned to normal within a month, without any specific treatment. It was possible to follow this process by repeated B-mode sonographic examinations and thyroid scans. Topics: Adenoma; Aged; Female; Hemorrhage; Humans; Hyperthyroidism; Radionuclide Imaging; Thyroid Neoplasms; Ultrasonography; Warfarin | 1985 |
Treatment of delayed radiation necrosis of the brain. A clinical observation.
The authors report two cases of delayed radiation necrosis of the brain. In these cases a dramatic clinical and computerized tomographic improvement was noted after the institution of anticoagulant therapy. Based on a review of the literature, a possible causal mechanism is suggested. It was believed from both the clinical observation and the literature review that the anticoagulant agents had a direct effect upon the improvement in these patients. Laboratory data are needed to determine the role of anticoagulant therapy in the treatment of delayed radiation necrosis of the brain. Topics: Adult; Brain Diseases; Brain Neoplasms; Carcinoma; Female; Glioma; Heparin; Humans; Male; Necrosis; Radiation Injuries; Thyroid Neoplasms; Tomography, X-Ray Computed; Warfarin | 1984 |