Endocrinology and Metabolism

Chul Woo Yang (Yang CW)

2 Articles

Central Diabetes Insipidus Surmised as from Post-obstructive Diuresis after Decompression Treatment for Neurogenic Bladder.: Kang Woo Lee, Chul Woo Yang, Dong Jun Lim, Hyuk Sang Kwon, Mi Ja Kang, Eun Sook Kim, Kun Ho Yoon, Ho Young Son, Bong Yun Cha; J Korean Endocr Soc. 2009;24(2):144-147. Published online June 1, 2009; DOI: https://doi.org/10.3803/jkes.2009.24.2.144

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Post-obstructive diuresis after treatment for neurogenic bladder-induced obstructive kidney disease is a common symptom. As polyuria may develop in many other conditions as well, the present case is about a patient with a chief complaint of polyuria accompanied by nocturia, that was initially diagnosed as hydronephrosis due to the presence of neurogenic bladder and bladder dysfunction. The result of the water deprivation test, which was conducted for persistent diluted polyuria, yielded a final diagnosis of central diabetes insipidus, notwithstanding the strong impression of post-obstructive diuresis initially made because of a sudden increase in urine output after an indwelling catheter was inserted for bladder decompression.

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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

Effect of Intermittent Etidronate Therapy on the Prevention of Bone Loss after Kidney Transplantation.: Hye Soo Kim, Jong Min Lee, Sung Kwon Kim, Cheol Whee Park, Chul Woo Yang, Moo Il Kang, Suk Young Kim, Sung Koo Kang, Byung Kee Bang; J Korean Endocr Soc. 2001;16(4-5):426-437. Published online October 1, 2001

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Abstract PDF: BACKGROUND
Osteopenia or osteoporosis is one of the most frequently encountered complications in patients receiving various immunosuppressants after kidney transplantation. The few available preventive strategies for these complications tend to result in various outcomes. In this study, we evaluated the effect of intermittent etidronate therapy for the prevention of bone loss after kidney transplantation. METHODS: Fifty patients who received kidney transplantation for various reasons were recruited and followed for one year. Thirty-eight of these patients commenced etidronate treatment 7 days after operation, the other 12 were followed without etidronate therapy. The treatment consisted of 400mg of etidronate administered orally for 14 days, then repeated four-times every three months. Blood chemistry, iPTH and aluminium levels were tested periodically in all patients. Also checked were bone mineral density of the lumbar spine(L2-4) and femur at baseline, 6 and 12 months after kidney transplantation, as well as D-L spine lateral x-ray at baseline and 12 months. Serum osteocalcin and urine deoxypyridinoline were measured at baseline, 7 days and then every 3 months. RESULTS: Both the etidronate-treated and control groups showed significant decreases in bone mineral densities of the lumbar spine, femur neck and total femur at 6 and 12 months after kidney transplantation(p<0.005). Bone loss was significantly lower in the etidronate-treated group than the control at 12 months after kidney transplantation; lumbar spine(-3.54% vs. -9.51%, p<0.0005), femur neck (-5.41% vs. -8.91%, p<0.0005), total femur (-7.59% vs. -9.07%, p<0.005). Osteocalcin was decreased and deoxypyridinoline increased in both groups. No significant differences in the level or pattern of osteocalcin and deoxypyridinoline were observed in either group. New radiologic compression fractures were found in two patients of the treated group who exhibited severe osteoporosis at baseline during follow-up. CONCLUSIONS: The intermittent administration of etidronate seems to be effective in preventing rapid bone loss after kidney transplantation. Furthermore, this method is safe and convenient for administration and follow-up. Further studies will be required to elucidate the most effective treatment course for the prevention of fractures after kidney transplantation, especially in patients with established severe osteoporosis.

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