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Case Report
Reninoma: a rare cause of curable hypertension
Ji Hye Kim, Ji Hyun Kim, Myung Hyun Cho, Eujin Park, Hye Sun Hyun, Yo Han Ahn, Hee Gyung Kang, Kyung Chul Moon, Il-Soo Ha, Hae Il Cheong
Clin Exp Pediatr. 2019;62(4):144-147.   Published online October 29, 2018
The most common type of refractory hypertension found in children is secondary hypertension, which is a potentially curable disease. Reninoma, a renin-secreting juxtaglomerular cell tumor, is a rare cause of severe hypertension that is usually diagnosed in adolescents and young adults. Surgical resection of the tumor completely cures the hypertension of patients with reninoma. The typical clinical presentation of reninoma...
Original Article
p-Cresyl sulfate and indoxyl sulfate in pediatric patients on chronic dialysis
Hye Sun Hyun, Kyung Hoon Paik, Hee Yeon Cho
Clin Exp Pediatr. 2013;56(4):159-164.   Published online April 22, 2013
Purpose

Indoxyl sulfate and p-cresyl sulfate are important protein-bound uremic retention solutes whose levels can be partially reduced by renal replacement therapy. These solutes originate from intestinal bacterial protein fermentation and are associated with cardiovascular outcomes and chronic kidney disease progression. The aims of this study were to investigate the levels of indoxyl sulfate and p-cresyl sulfate as well as the...

Case Report
Idiopathic severe hypermagnesemia in an extremely low birth weight infant on the first day of life
Hye Sun Hyun, Hyun Sin Choi, Jin Kyu Kim, So Yoon Ahn, Hey Soo Yoo, Eun Sun Kim, Yun Sil Chang, Won Soon Park
Clin Exp Pediatr. 2011;54(7):310-312.   Published online July 31, 2011

A preterm female infant born at 27 weeks of gestation with a birth weight of 990 g developed acute hypotonia, apnea, hypotension and bradycardia mimicking septic shock syndrome at 14h after birth. Laboratory tests indicated a severe hypermagnesemia of 45 mg/dL. The renal function, complete blood count and maternal blood concentrations of magnesium were normal, and the blood cultures were...