Endocrinology and Metabolism

Sang Min Lee (Lee SM)

3 Articles

Diabetes, obesity and metabolism
Coronary Artery Calcium Score as a Sensitive Indicator of Cardiovascular Disease in Patients with Type 2 Diabetes Mellitus: A Long-Term Cohort Study: Dae-Jeong Koo, Mi Yeon Lee, Sun Joon Moon, Hyemi Kwon, Sang Min Lee, Se Eun Park, Cheol-Young Park, Won-Young Lee, Ki Won Oh, Sung Rae Cho, Young-Hoon Jeong, Eun-Jung Rhee; Endocrinol Metab. 2023;38(5):568-577. Published online October 10, 2023; DOI: https://doi.org/10.3803/EnM.2023.1770

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Abstract PDF Supplementary Material PubReader ePub: Background
Coronary artery calcium score (CACS) has become an important tool for evaluating cardiovascular disease (CVD). This study evaluated the significance of CACS for future CVD through more than 10 years of follow-up in asymptomatic Korean populations with type 2 diabetes mellitus (T2DM) known to have a relatively low CACS burden.
Methods
We enrolled 981 asymptomatic T2DM patients without CVD at baseline who underwent CACS evaluation using multidetector computed tomography between January 2008 and December 2014. They were grouped into five predefined CACS categories based on Agatston scores and followed up by August 2020. The primary endpoint was incident CVD events, including coronary, cerebrovascular, and peripheral arterial disease.
Results
The relative risk of CVD was significantly higher in patients with CACS ≥10, and the significance persisted after adjustment for known confounders. A higher CACS category indicated a higher incidence of future CVD: hazard ratio (95% confidence interval) 4.09 (1.79 to 9.36), 12.00 (5.61 to 25.69), and 38.79 (16.43 to 91.59) for 10≤ CACS <100, 100≤ CACS <400, and CACS ≥400, respectively. During the 12-year follow-up period, the difference in event-free survival more than doubled as the category increased. Patients with CACS below 10 had very low CVD incidence throughout the follow-up. The receiver operating characteristic analysis showed better area under curve when the CACS cutoff was 10 than 100.
Conclusion
CACS can be a sensitive marker of CVD risk. Specifically, CACS above 10 is an indicator of CVD high-risk requiring more intensive medical treatment in Koreans with T2DM.

Differential Diagnostic Value of Total T3/Free T4 Ratio in Graves' Disease and Painless Thyroiditis Presenting Thyrotoxicosis.: Sang Min Lee, Soo Kyoung Kim, Jong Ryeal Hahm, Jung Hwa Jung, Ho Su Kim, Sungsu Kim, Soon Il Chung, Bong Hoi Choi, Tae Sik Jung; Endocrinol Metab. 2012;27(2):121-125. Published online June 20, 2012; DOI: https://doi.org/10.3803/EnM.2012.27.2.121

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Abstract PDF

BACKGROUND
It is important to differentiate Graves' disease from that of painless thyroiditis in patients with thyrotoxicosis. In this study, we evaluated the usefulness of total T3 to free T4 ratio in making a differential diagnosis between Graves' disease and painless thyroiditis. METHODS: We reviewed medical records of thyrotoxic patients, who had been diagnosed with Graves' disease or painless thyroiditis, from October 2009 to July 2011. We assessed clinical characteristics, serum levels of total T3, free T4, thyroid stimulating hormone, thyrotropin-binding inhibitory immunoglobulin, and findings of 99mTechnetium thyroid scan. We analyzed the total T3/free T4 ratios between Graves' disease and painless thyroiditis patients. RESULTS: A total of 76 untreated thyrotoxic patients "49 Graves' disease and 27 painless thyroiditis" were examined. The total T3, free T4 levels and the total T3/free T4 ratios were significantly higher in patients with Graves' disease than in those with painless thyroiditis (P < 0.001). In the total T3/free T4 ratio > 73, the possibility of Graves' disease was significantly higher than in painless thyroiditis (sensitivity, 75.5%; specificity, 70.3%). The sensitivity and specificity of the total T3/free T4 ratio in patients with free T4 < 3.6 ng/dL have been increased (sensitivity, 100%; specificity, 71.4%). CONCLUSION: The total T3/free T4 ratios was useful for making a differential diagnosis between Graves' disease and painless thyroiditis.

Citations

Citations to this article as recorded by

Comparison of 99mTc Pertechnetate Thyroid Uptake Rates by Gamma Probe and Gamma Camera Methods for Differentiating Graves’ Disease and Thyroiditis
Meihua Jin, Jonghwa Ahn, Seong-gil Jo, Jangwon Park, Min Ji Jeon, Won Gu Kim, Tae Yong Kim, Won Bae Kim, Young Kee Shong, Jin-Sook Ryu
Nuclear Medicine and Molecular Imaging.2022; 56(1): 42. CrossRef
Interpretation of puzzling thyroid function tests
Jee Hee Yoon, Ho-Cheol Kang
Journal of the Korean Medical Association.2018; 61(4): 241. CrossRef
The High Proportion of Painless Thyroiditis as a Cause of Thyrotoxicosis in Korea
Sang Il Mo, A Jeong Ryu, Yeo Joo Kim, Sang Jin Kim
Journal of Korean Thyroid Association.2015; 8(1): 61. CrossRef

A Case of Central Diabetes Insipitus Combined with Septo-Optic Dysplasia and Schizencephaly in 31-year-old Woman.: Soo Kyoung Kim, Tae Sik Jung, Jong Ryeal Hahm, Sang Min Lee, Sung Won Moon, Kyeong Ju Lee, Soon Il Chung; J Korean Endocr Soc. 2007;22(5):339-343. Published online October 1, 2007; DOI: https://doi.org/10.3803/jkes.2007.22.5.339

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Abstract PDF

A 31-year-old woman was referred to our hospital for evaluation and management of poorly controlled epilepsy. The patient had been taking anti-epileptic drugs for six years. An MRI imaging study showed septo-optic dysplasia (SOD) and schizencephaly. SOD is a syndrome characterized by agenesis of the septum pellucidum or corpus callosum, optic nerve dysplasia and congenital hypothalamic-pituitary insufficiency. The patient was referred to the endocrine clinic for exclusion of any pituitary hormonal deficiencies. In a systemic review, the patient complained of polydipsia and polyuria for 20 years. In laboratory tests, measurements showed a serum osmolarity of 281 mOsm/kg, a serum sodium concentration of 144.7 mmol/L, a spot urine osmolarity of 183 mOsm/kg and a spot urine sodium concentration of 32 mmol/L. The patient underwent a water deprivation test, and was diagnosed with central diabetes insipidus. We report a case of central diabetes insipitus combined with SOD, schizencephaly and epilepsy.

Citations

Citations to this article as recorded by

A Case of Septo-Optic Dysplasia Resulting in Central Diabetes Insipidus and Nonobstructive Bilateral Hydronephrosis
Jong Hyun Kim, Kwang Bok Lee, Jeonghun Lee, Soo Min Nam, Kang-Woo Lee, Eu Gene Hwang, Geon Gil
Korean Journal of Medicine.2014; 87(2): 209. CrossRef
A Case of Septo-optic Dysplasia Associated with Anterior Pituitary Hormone Abnormalities
Jin-Woo Lee, Eui-Kyung Hwang, Tae-Ho Kim, Hyung-Young Yoon, Jae Ho Jung, Yong Won Choi, Suk-Woo Yong, Jae-Hong Ahn, Sun-Yong Kim, Ho Sung Kim, Yoon-Sok Chung
Journal of Korean Endocrine Society.2009; 24(1): 33. CrossRef

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