- Duration of Preparation for Postoperative Radioiodine Administration in Differentiated Thyroid Carcinoma.
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Hyeon Kyu Kim, Min Ho Cho, Choel Young Park, Seong Jin Lee, Gi Weon Oh, In Kyung Jeong, Eun Gyung Hong, Sung Hee Ihm, Doo Man Kim, Jae Myung Yu, Moon Gi Choi, Hyung Joon Yoo, Sung Woo Park, Jin Hwan Kim, Young Soo Rho
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J Korean Endocr Soc. 2005;20(5):460-466. Published online October 1, 2005
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DOI: https://doi.org/10.3803/jkes.2005.20.5.460
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 Abstract
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- BACKGROUND
Radioiodine treatment is effective for the removal of remnant thyroid tissues after thyroidectomy in patients with differentiated thyroid carcinoma. To induce the elevation of serum TSH level which facilitates the uptake of radioiodine into remnants, a 4 to 6 week interval between thyroidectomy and radioiodine administration has been established. During the period of preparation, most patients have experienced overt symptoms of hypothyroidism which have led to the development of alternative strategies. Some reports have suggested that the interval could be reduced to about 3 weeks with less symptoms. We reevaluated the adequate time needed for the elevation of serum TSH level above 30microU/mL after thyroidectomy. METHODS: Forty five patients who had undergone total thyroidectomy for differentiated thyroid carcinoma were investigated. Serum TSH and free T4 levels were measured one or more times within 3 weeks after operation(total 97 blood samples). Eighty nine blood samples were obtained within 15 days. RESULTS: In 41 patients (91.1%) serum TSH levels increased to 30 microU/mL until 15 days after operation. Until postoperative 21 days, serum TSH levels in all the other patients reached 30microU/mL. In linear equation, the daily increment of serum TSH levels was 2.62microU/mL for the first 8 days after operation and 5.34micorU/mL for the next 7 days. The half-life of serum free T4 levels showed marked individual variations. CONCLUSION: Measurement of serum TSH level at about 15 days after total thyroidectomy for differentiated thyroid carcinoma may be useful in determining the time of radioiodine administration.
- A Case of Masked Hypoglycemia during Lactic Acidosis.
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Hee Seon Kim, Ho Sung Yoon, Chang Ok Koh, Hyeon Kyu Kim, Choel Young Park, Seong Jin Lee, Gi Weon Oh, In Kyung Jeong, Eun Gyung Hong, Cheol Soo Choi, Doo Man Kim, Sung Hee Ihm, Jae Myung Yu, Moon Gi Choi, Hyung Joon Yoo, Sung Woo Park, Dong Jin Oh
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J Korean Endocr Soc. 2004;19(4):406-410. Published online August 1, 2004
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Abstract
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- Severe hypoglycemia induces neuroglycopenic symptoms, including mental alteration, as glucose is the exclusive fuel for the central nervous system. However, some reports have shown that non-glucose fuels, like lactates and ketones, could be utilized by the brain during severe hypoglycemia. Herein, a case of extreme hypoglycemia in a 44-year old woman, subsequently diagnosed as congestive heart failure accompanied by ischemic hepatitis and lactic acidosis, is presented. In two episodes of extreme hypoglycemia, she was fully alert without obvious neurological deficits. In this unusual case, an increased supply of lactate might have maintained the cerebral function and prevented cerebral injury during the hypoglycemia that was induced as a result of starvation and hepatic and cardiac dysfunctions
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