Hyun Seop Cho
Gyeongsang National University
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Publication
Featured researches published by Hyun Seop Cho.
Renal Failure | 2014
Eun Jin Bae; Kyungo Hwang; Ha Nee Jang; Min-Jeong Kim; Dae-Hong Jeon; Hyun Jung Kim; Hyun Seop Cho; Se-Ho Chang; Dong Jun Park
Abstract Purpose: Acute renal infarction is often missed or diagnosed late due to its rarity and non-specific clinical manifestations. This study analyzed the clinical and laboratory findings of patients diagnosed with renal infarction to determine whether it affects short- or long-term renal prognosis. Methods: We retrospectively reviewed the medical records of 100 patients diagnosed as acute renal infarction from January 1995 to September 2012 at Gyeongsang National University Hospital, Jinju, South Korea. Results: Acute kidney injury (AKI) occurred in 30 patients. Infarct size was positively correlated with the occurrence of AKI (p = 0.004). Compared with non-AKI patients, AKI occurrence was significantly correlated with degree of proteinuria (p < 0.001) and the presence of microscopic hematuria (p = 0.035). AKI patients had higher levels of aspartate transaminase (p < 0.001), alanine transaminase (p < 0.001), and lactated dehydrogenase (p = 0.027). AKI after acute renal infarction was more common in patients with chronic renal failure (CRF) (eGFR < 60 mL/min), compared with non-CRF patients, whose baseline eGFR was >60 mL/min (p = 0.003). Most patients recovered from AKI, except for seven patients (7%) who developed persistent renal impairment (chronic kidney disease progression) closely correlated with magnitude of infarct size (p = 0.015). Six AKI patients died due to combined comorbidity. Conclusions: AKI is often associated with acute renal infarction. Although most AKI recovers spontaneously, renal impairment following acute renal infarction can persist. Thus, early diagnosis and intervention are needed to preserve renal function.
Journal of Clinical Pharmacy and Therapeutics | 2014
Yeojin Kang; Min Jeong Kim; Ha Nee Jang; Eunjin Bae; Seong Eun Yun; Hyun Seop Cho; Se-Ho Chang; Dong-Jun Park
Febuxostat is now recommended as the first‐line pharmacological urate‐lowering therapy for gout in the American College of Rheumatology guidelines. There is no case of rhabdomyolysis associated with febuxostat among reported side effects of the drug. Our objective is to report on a case of rhabdomyolysis associated with initiation of febuxostat in a patient with chronic kidney disease (CKD).
Hemodialysis International | 2009
Eun Young Jung; Hyun Seop Cho; Jong Woo Seo; Dong-Wook Kim; Hyun Jung Kim; Se-Ho Chang; Dong Jun Park
A 51‐year‐old Korean man with end‐stage renal disease and who was on intermittent hemodialysis was admitted with progressive dysarthria, gait disturbance, and myoclonus. The liver function tests and the electrolyte and arterial gas analyses were normal. The Magnetic resonance imaging scan showed a diffuse symmetric high signal intensity in the basal ganglia on the T2‐weighted image. After a thorough history taking, we knew that he had been treated with metformin for 3 months at other hospital without our hospitals staffs knowledge. After stopping the metformin, the patients neurologic signs and symptoms disappeared and the Magnetic resonance imaging findings after 20 days were markedly improved.
Hemodialysis International | 2013
Yeojin Kang; Eun Jin Bae; Jong Woo Seo; Dae-Hong Jeon; Hyun Seop Cho; Hyun-Jung Kim; Se-Ho Chang; Dong Jun Park
We report on two additional cases of metformin‐associated encephalopathy in patients with end‐stage renal disease (ESRD) undergoing hemodialysis. Two patients were seen at our hospital with abnormal neurological signs and symptoms. Magnetic resonance imaging (MRI) revealed the same pattern of high signal intensity in both basal ganglia in T2‐weighted images in the two patients. The two patients had started taking metformin 5 and 6 weeks earlier at the same dose of 1000 mg per day. Metformin was immediately stopped, and regular hemodialysis was conducted. Their signs and symptoms resolved completely after these measures. The high signal intensity in both ganglia in T2‐weighted MRI also disappeared. We should suspect metformin‐induced encephalopathy and withdraw the drug when presented with diabetic patients with chronic kidney disease and neurological signs and symptoms of unknown cause.
Clinical and Experimental Nephrology | 2011
Hyun Seop Cho; Jong Woo Seo; Yeojin Kang; Eun Jin Bae; Hyun-Jung Kim; Se-Ho Chang; Dong Jun Park
BackgroundTranscatheter arterial chemoembolization (TACE) is an effective treatment for unresectable hepatocellular carcinoma (HCC); however, large volumes of radiocontrast agents are used for TACE and may induce renal dysfunction. Most patients with HCC have coexisting liver cirrhosis (LC) at the time of diagnosis. Advanced cirrhosis is characterized by peripheral vasodilatation associated with decreased renal perfusion due to the activation of vasoconstrictor systems. We retrospectively investigated patients with HCC who had undergone TACE to determine the incidence and risk factors for radiocontrast-induced nephropathy (RCIN).MethodsA total of 101 patients with HCC who underwent a combined 221 TACE treatment sessions were included. Follow-up serum creatinine levels within 96 h after TACE were confirmed in these patients. RCIN was defined as an increase of at least 25% in baseline serum creatinine levels between 48 and 96 h after TACE.ResultsRCIN developed in 20 (9%) of the 221 treatment sessions after TACE. A univariate analysis showed that the Child–Pugh score (6.0 ± 1.3 vs. 6.7 ± 1.9, P = 0.005), ascites (14.4 vs. 40%, P = 0.008), contrast medium volume (257.3 ± 66.8 vs. 275.0 ± 44.0 ml, P = 0.009), total bilirubin (1.3 ± 1.7 vs. 3.4 ± 8.0 mg/dl, P < 0.001), basal serum creatinine levels (0.9 ± 0.3 vs. 1.0 ± 0.5 mg/dl, P < 0.001) and glomerular filtration rate using the modification of diet in renal disease formula (90.5 ± 21.8 vs. 88.4 ± 29.6 ml/min, P = 0.015) were significantly associated with the development of RCIN. A multivariate analysis revealed that the Child–Pugh score was associated with RCIN [odds ratio (OR) 1.5; P = 0.015]. Overall, in-hospital mortality after TACE was 4.07% (with RCIN, 30%; without RCIN, 1.5%; P < 0.001). The multivariate analysis also showed that the Child–Pugh score and the occurrence of RCIN were associated with in-hospital mortality after TACE (OR 2.8; P = 0.001; OR 26.7, P = 0.002, respectively).ConclusionsRCIN after TACE was closely associated with the severity of LC. Effective preventive measures remain to be determined in patients with HCC and advanced LC who are undergoing TACE.
Renal Failure | 2012
Eun Jin Bae; Yeojin Kang; Jong Woo Seo; Kyungo Hwang; Hyun Seop Cho; Se-Ho Chang; Dong Jun Park
A 74-year-old woman was admitted to our emergency room complaining of general weakness and anorexia that started 20 days earlier. She denied other underlying diseases that might have provoked chronic renal disease. Her serum creatinine was 12.35 mg/dL. A pelvic examination and computed tomography revealed severe bilateral hydroureteronephrosis with marked cortical thinning induced by total uterine prolapse. She was started on emergency hemodialysis due to her uremic symptoms and severe metabolic acidosis. Despite Foley catheter insertion and manual reduction of uterus for 1 month, renal function was not recovered. The department of gynecology was strongly opposed to performing a procedure to reverse the hydroureteronephrosis due to the irreversibility of her renal function. She is undergoing chronic maintenance hemodialysis. This is a case report of rare end-stage renal disease (ESRD) caused by obstructive uropathy due to pelvic organ prolapse (POP). We should consider POP as a cause of ESRD.
Hemodialysis International | 2011
Hyeon Jeong Lee; Jong Woo Seo; Hyun Seop Cho; Yeojin Kang; Eun Jin Bae; Dong Won Lee; Dae-Hong Jeon; Jong Sil Lee; Se-Ho Chang; Dong Jun Park
Mantle cell lymphoma (MCL), owing to its insensitivity to chemotherapy, has a poor prognosis, with a median survival of 3 years to 4 years. MCL frequently infiltrates other organs. However, reports involving kidney in living patients are rare. Here, we report a case of MCL with renal involvement leading to end stage renal disease that required renal replacement therapy. A 69‐year‐old man diagnosed with MCL 3 years earlier was admitted to our emergency room due to uremic symptoms. After eight cycles of chemotherapy, he had displayed complete remission, but experienced a recurrence 1.5 years later; after refusing chemotherapy, the patient was lost on follow‐up in the final 10 months. On presentation at the emergency room, the patients serum blood urea nitrogen was 109.5 mg/dL, and creatinine was 11.1 mg/dL. All serological markers for secondary glomerulonephritis were negative. Renal biopsy revealed 50% sclerosis of the glomerulus and small dense lymphocyte infiltration of the tubulo‐interstitium. Similar cells were found on the gastric mucosa. Despite our recommendation for chemotherapy, he refused all treatments except for hemodialysis, which was maintained for 12 months until his death. This patient represents the first case report of the renal involvement of MCL leading to end stage renal disease.
Scientific Reports | 2017
Hyun Seop Cho; Jinhyun Kim; Ha Nee Jang; Tae Won Lee; Myeong Hee Jung; Tae-Ho Kim; Se-Ho Chang; Dong Jun Park
The epithelial-to-mesenchymal transition (EMT) is one of mechanisms that induce renal interstitial fibrosis. Understanding EMT in renal fibrosis has important therapeutic implications for patients with kidney disease. Alpha-lipoic acid (ALA) is a natural compound with antioxidant properties. Studies for ALA are performed in acute kidney injury with renal tubular apoptosis, renal inflammation, and oxidative stress. We investigated the effects of ALA on EMT-mediated renal interstitial fibrosis in mice with unilateral ureteral obstruction (UUO). UUO mice developed severe tubular atrophy and tubulointerstitial fibrosis, with a robust EMT response and ECM deposition after 7 postoperative days. In contrast, ALA-treated UUO mice showed only moderate injury and minimal fibrosis and also larger reductions in the expression of ECM proteins, inflammatory factors, and EMT markers. ALA was shown to be involved in the suppression of infiltrating macrophages associated with EMT and the progression of interstitial fibrosis. It also lessened the destruction of the tubular basement membrane, by reducing the expression of matrix metalloproteinases. This is the first study to show that ALA modulates EMT in a UUO mouse model. Our results suggest that ALA merits further exploration as a therapeutic agent in the prevention and treatment of chronic kidney disease.
BMJ Open | 2017
Kyungo Hwang; Ha Nee Jang; Tae Won Lee; Hyun Seop Cho; Eunjin Bae; Se-Ho Chang; Dong Jun Park
Objectives Renal involvement in scrub typhus ranges from simple urinary abnormalities to acute kidney injury (AKI) leading to death. This study evaluated the incidence, predictors and prognosis of AKI associated with scrub typhus according to the RIFLE (risk, injury, failure, loss, end-stage kidney disease) criteria. Methods We retrospectively evaluated the medical records of patients diagnosed with scrub typhus from January 2001 to November 2013 in Gyeongsang National University Hospital. Results During the study period, 510 patients were diagnosed with scrub typhus and the incidence of AKI was 35.9%. There were 132 (25.9%) patients at risk, 37 (7.3%) with injury and 14 (2.7%) with failure. In comparison with the non-AKI group, the AKI group was older (73.9 vs 63.4 years, p<0.001) and had more comorbidities such as hypertension, diabetes mellitus and chronic kidney disease (CKD). AKI frequently occurs in hypertensive patients taking angiotensin receptor blockers or ACE inhibitors (p=0.002), and in patients with diabetes with higher glycated haemoglobin levels (p=0.033). Haematuria and proteinuria were more frequent in the AKI group. There was no relationship between the severity of proteinuria and occurrence of AKI. Intensive care unit admission and death were more frequent in the AKI group. The renal function of most patients with AKI recovered without sequelae, except for 1 patient who had underlying CKD. Multivariate analysis showed that age, presence of CKD, serum albumin level and time to hospital presentation after symptom onset were independent predictors of AKI in patients with scrub typhus. Conclusions Our current results suggest that the presence of underlying CKD, older age, lower serum albumin level and time to hospital presentation after symptom onset were important risk factors to determine occurrence of AKI. Whether earlier diagnosis and treatment in patients with the above risk factors reduce the incidence and severity of AKI deserves to be investigated.
Medicine | 2016
Dae-Hong Jeon; Yire Kim; Min-Jeong Kim; Hyun Seop Cho; Eun Jin Bae; Se-Ho Chang; Dong Jun Park
Background:Proton pump inhibitors are usually safe, although serious adverse effects can occur. We report the first case of rhabdomyolysis associated with single-dose intravenous esomeprozole administration. Methods:A 45-year-old Korean male visited our emergency room because of persistent lower chest discomfort that started 10 hours before. He had been diagnosed with diabetes and coronary heart disease, but discontinued oral hypoglycemic agents 1 month earlier. He continued to take medications for coronary heart disease. There was no abnormality on an electrocardiogram or in cardiac enzymes. Initial laboratory findings did not show abnormalities for muscle enzymes. Esomeprozole 40 mg was administrated intravenously for the control of his ambiguous chest discomfort. Then, 12 hours later, he complained of abrupt severe right buttock pain. An area of tender muscle swelling 8 cm in diameter was seen on his right buttock area. Creatine kinase and lactate dehydrogenase were elevated to 40,538 and 1326 U/L, respectively. A bone scan using 20 mCi of 99mTc-hydroxymethylene diphosphonate was compatible with rhabdomyolysis. Results:His muscular symptoms, signs, and laboratory findings improved markedly with conservative management, including hydration and urine alkalinization. He is being followed in the outpatient department with no evidence of recurrence. Conclusion:We should keep in mind that single-dose intravenous administration of esomeprazole can induce rhabdomyolysis.