Journal of Yeungnam Medical Science

Jung Youn Choi

3 Articles

One Case of Lupus Nephritis Flare in Child During Tapering the Steroid: Jung Youn Choi, Yong Hoon Park; Yeungnam Univ J Med. 2007;24(2 Suppl):S755-760. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S755

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Abstract PDF: Systemic lupus erythematosus (SLE) is a chronic multisystemic inflammatory autoimmune disease. Hematologic abnormality is more frequent and the frequency of using high dose steroid and immunosuppressant as treatment is higher in children, because the number of involved major organ is numerous and the disease progress is often rapid in the SLE of children. We reported an experience of lupus nephritis flare after tapering the steroid in 9 years old boy who was diagnosed focal proliferative glomerulonephritis.

Power Doppler Sonography for the Upper Urinary Tract Infection in Children.: Jung Youn Choi, Jae Ho Cho, Yong Hoon Park; Yeungnam Univ J Med. 2007;24(2):179-185. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2.179

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BACKGROUND
Urinary tract infection (UTI) is common in children. The available gold standard methods for diagnosis, Tc-99m dimercaptosuccinic acid (DMSA) scan and computed tomography (CT) are invasive and expensive. This study was performed to assess the role of power Doppler ultrasound (PDU) for diagnosis of acute pyelonephritis (APN). MATERIALS AND METHODS: A prospective study was conducted in 25 children with aged 2 weeks to 5 years who were hospitalized with the first episode of febrile UTI suggesting acute pyelonephritis. All children were examined in the first 3-5 days of admission by PDU and Tc-99m DMSA scan. The comparison between PDU and DMSA scan was performed on the basis of patients. RESULTS: The sensitivity and specificity of PDU for the detection of affected kidneys were 38.1% and 50.0%, and the positive predictive value and negative predictive value were 61.9% and 50.0%, respectively. Vesicoureteral refluxes (VUR) were identified in 11 patients (44.4%) and 18 kidneys (36%). The PDU and DMSA scan showed a matching perfusion defect in 23.8% and 50.0% respectively. CONCLUSION: These data indicate the PDU has a relatively low sensitivity and specificity for differentiating APN from lower UTI but may be a complement tool to DMSA scan for the prediction of VUR in infants and children.

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Comparison of 99mTc-DMSA Renal Scan and Power Doppler Ultrasonography for the Detection of Acute Pyelonephritis and Vesicoureteral Reflux
Hee Jung Bae, Yong-Hoon Park, Jae Ho Cho, Kyung Mi Jang
Childhood Kidney Diseases.2018; 22(2): 47. CrossRef
Urinary tract infections in pediatric oncology patients with febrile neutropenia
Kyoo Hyun Suh, Sun Young Park, Sae Yoon Kim, Jae Min Lee
Yeungnam University Journal of Medicine.2016; 33(2): 105. CrossRef

Transient Abdominal Distension in Neonate.: Jung Youn Choi, Eun Sil Yun, Kwang Hae Choi; Yeungnam Univ J Med. 2006;23(1):138-142. Published online June 30, 2006; DOI: https://doi.org/10.12701/yujm.2006.23.1.138

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Abstract PDF: Abdominal distension is not an uncommon symptom in the neonate; it is indistinguishable from Hirschsprung disease by symptoms and X-ray findings. In three patients, severe abdominal distension was found at early infancy and improved with conservative treatment without relapse. The findings were different from those of Hirschsprung disease. Immaturity or poor coordination of peristaltic movement is postulated as the cause. With maturation such problems can normalize. However the pathogenesis remains unclear and further investigation is needed to improve our understanding.

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