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Hyun Kyu Kim  (Kim HK) 4 Articles
The Effect of Low Dose and High Dose ACTH in the Evaluation of Adrenal Function.
Hyung Joon Yoo, Sung Hee Ihm, Sung Woo Park, Jae Hwan Jee, Hyun Kyu Kim, Doo Man Kim, Jae Myoung Yoo, Moon Ki Choi
J Korean Endocr Soc. 1998;13(4):580-589.   Published online January 1, 2001
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BACKGROUND
Pharmacological ACTH test provide information only about the ability of the adrenal gland to respond to unusual stimuli and may not reflect the daily cortisol secretion. There were some controversies in the diagnosis of mild adrenal insufficiency by using a pharmacological dose of ACTH. The purpose of the present study was to assess and compare the effect of low dose 1 pg ACTH and high dose 249 pg ACTH in the evaluation of adrenal function. The intravenous injection of a pharmacological dose(250 pg) of ACTH has been used as a standard test in the initial assessment of adrenal function. So we low dose ACTH to evaluate the adrenal function and compare the result of high dose ACTH. METHOD: Basal serum cortisol sampling was done at 2:00 p.m.. And after 1 pg ACTH iv bolus injection, cortisol sampling was done at 20, 30, 45 and 60 min respectively. On the next day same procedure was repeated at same time, but 249 mg ACTH was given instead of the low dose. Normal adrenal function was diagnosed with the criteria of stimulated serum cortisol concentration over 20 mg/dL. Total 65 patients took part in this study. Three hypopituitarism patients and one Addisons disease were included. Sixty-one patients had the history of glucocorticoid ingestion or had physical findings of cushingoid features with symptoms suggest the adrenal insufficiency. RESULTS: Sixteen patients showed normal response to both low dose and high dose ACTH. Thirty-six patients were not stimulated to both low dose and high dose ACTH. The remaining thirteen patients revealed normal response to high dose ACTH, but not to low dose ACTH. CONCLUSION: It appears that low dose ACTH stimulation test is more sensitive and specific than high dose ACTH and is capable of revealing mild adrenal insufficiency.
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A Case of Cushing's Syndrome in Pregnancy due to Adrenal Adenoma.
Hyung Joon Yoo, Sung Hee Ihm, Sung Woo Park, Hae Sung Yim, Yong Tae Kim, Chul Hee Park, Hyun Kyu Kim, Doo Man Kim, Jae Myoung Yoo, Moon Ki Choi
J Korean Endocr Soc. 1998;13(2):264-270.   Published online January 1, 2001
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  • 16 Download
AbstractAbstract PDF
Cushings syndrome in pregnancy is rare. This is explained by the syndromes association with amencerhea, infertility and abortions. Matemal and fetal risks increase markedly when pregnancy does occur in woman with hypercortisolism. Since pregnant women without Cushings syndrome develop some features of Cushings syndrome, such as hypertension, hyperglycemia and striae, a high index of clinical suspician must be maintained to prevent delay in diagnosis. The physiologic changes in adrenocorticostemid metabolism during pregnancy further complieate the diagnosis. We describe a case of Cushings syndmme in pregnancy secondary to an adrenal cortical adenoma which was diagnosed immediately after a preterm delivery in 24-year-old woman with preeclampsia.
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Relationship between Blood Pressure and Insulin Level or Red Cell Membrane Na+ Transport in Acromegaly.
Seong Yeon Kim, Hyun Kyu Kim, Kyung Soo Park, Bo Youn Cho, Hong Kyu Lee, Chang Soon Koh
J Korean Endocr Soc. 1995;10(1):35-44.   Published online November 6, 2019
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  • 18 Download
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To test the hypothesis that hyperinsulinemia and/or abnormalities of red cell membrane Na^+ transport are concerned in the pathogenesis of hypertension, we investigated the relationship between blood pressure, insulin level and red cell membrane Na^+ transport in patients with acromegaly which is frequently associated with hypertension, hyperinsulinemia and abnormalities of red cell membrane Na^+ transport.The results were as follows;1) BMI and both systolic and diastolic blood pressure were significantly higher in patients with acromegaly than in control subjects.2) Fasting glucose and insulin levels were higher, and both serum glucose and insulin responses after a 75g glucose load were significantly increased in patients with acromegaly as compared with control subjects.3) Vmax of Na^+-Li^+ countertransport were significantly higher in patients with acromegaly than in control subjects while red cell Na^+ concentration and Vmax of Na^+, K^+ ATPase were similar in the two groups.4) In multiple stepwise regression analysis, age was directly correlated with both systolic and diastolic blood pressure in acromegaly. On the other hand both insulin level and red cell membrane Na^+ transport showed little correlation with either systolic or diastolic pressure. 5) Prevalence of hypertension in acromegaly was 39%(9 out of 23) and only age except for blood pressure was significantly higher in hypertensive acromegalic patients than in normotensive acromegalic patients while GH level, insulin levels and red cell membrane Na^+ transport were similar in the two groupsThese results suggest that hyperinsulinemia or abnormalities of red cell membrane Na^+ transport are not causally related to hypertension in patients with acromegaly.
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Preoperative treatment of acromegaly with long-acting somatostatin analog octreotide.
Seok In Lee, Hyun Kyu Kim, Kyung Soo Ko, Kyong Soo Park, Seong Yeon Kim, Bo Youn Cho, Hong Kyu Lee, Chang Soon Koh, Hun Ki Min, Hyun Jip Kim, Heu Won Jeong, Dae Hee Han
J Korean Endocr Soc. 1993;8(1):35-41.   Published online January 1, 2001
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  • 16 Download
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No abstract available.
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