1.The Effect of alpha-MSH on Long-term Histologic Changes after Acute Ischemic Kidney Injury in Rats.
So Young LEE ; Won Yong CHO ; Hyoung Kyu KIM ; Nan Hee WON
Korean Journal of Nephrology 2005;24(2):191-203
BACKGROUND: Ischemic acute renal failure (ARF) is increasingly recognized as involving chronic functional and structural sequelae. Ischemia reperfusion injury (I/R) plays a major role in delayed graft function and long-term changes after kidney transplantation, also. The present study was designed to evaluate the long-term changes after acute ischemic injury and whether renoprotection by alpha-MSH in the acute ischemic stage, could reduce the long-term sequelae. METHODS: In control group, ischemia/reperfusion injury was induced in male Sprague-Dawley rats by clamping Lt. renal pedicle for 15, 45, 60 minutes after removal of Rt. Kidney and followed by reperfusion. The animals in alpha-MSH group were injected alpha-MSH prior to reperfusion and then every day for 1 week. We measured BUN, creatinine at 24 hour after I/R injury, and in each group, 6 animals were sacrified at 1 week and 4 weeks after I/R injury to evaluate apoptosis, ED1, PCNA, and histopathologic changes. RESULTS: At 4 weeks after I/R injury, the remnant structural damage such as apoptosis, ED1 stained cells, MT (+) tubulointerstitial fibrosis were observed. alpha-MSH could reduce the initial functional injury, and apoptosis, ED1 stained monocyte, MT (+) tubulointerstitial fibrosis, also. CONCLUSION: Renal function was recoverd at 4 weeks after I/R injury, but structural sequelae such as apoptosis, fibrosis were remnant. alpha-MSH could attenuate initial functional damage and remnant fibrosis.
Acute Kidney Injury
;
alpha-MSH*
;
Animals
;
Apoptosis
;
Constriction
;
Creatinine
;
Delayed Graft Function
;
Fibrosis
;
Humans
;
Kidney Transplantation
;
Kidney*
;
Male
;
Monocytes
;
Proliferating Cell Nuclear Antigen
;
Rats*
;
Rats, Sprague-Dawley
;
Reperfusion
;
Reperfusion Injury
2.Epidemiological Study of an Outbreak of KPC-2-producing Klebsiella pneumoniae in a Tertiary Hospital in Korea
Jun Sung HONG ; Byeol Yi PARK ; Dokyun KIM ; Kunhan KIM ; Kyoung Hwa LEE ; Nan Hyoung CHO ; Seok Hoon JEONG
Annals of Clinical Microbiology 2020;23(2):81-92
Background:
The prevalence of carbapenemase-producing Enterobacteriaceae (CPE), especially the KPC-2-producing Klebisella pneumoniae, is rapidly increasing and becoming a menace to global public health. This study aims to present the molecular epidemiology of the KPC-2-producing K. pneumoniae isolates emerged in a tertiary hospital in South Korea and describe its clinical significance.
Methods:
This study included carbapenem-resistant K. pneumoniae isolates collected from a tertiary hospital from April to December in 2018. Antimicrobial susceptibility of K. pneumoniae isolates was tested using disk diffusion method. PCR and DNA sequence analyses were performed to identify the resistance genotype. In addition, the molecular epidemiology was investigated using pulsed-field gel electrophoresis (PFGE) and multilocus sequencing typing (MLST).
Results:
Total 100 KPC-2-producing K. pneumoniae isolates were collected, which were mainly classified into two pulsotypes according to the XbaI restriction digestion pattern by PFGE analysis (pulsotype A, n = 31; pulsotype B, n = 63). The isolates exhibiting pulsotype A belonged to ST395 and the remaining isolates exhibiting pulsotype B were attributed to ST307 by MLST analysis.
Conclusion
This study investigated clinical information and molecular bacterial profiles for KPC-2-producing K. pneumoniae isolates. These findings indicate that the proper infection control activities are needed to prevent the spread of multidrug-resistant organisms such as CPE, which could cause high mortality in clinical field.
3.Clinical Efficiency after Fixation with Cable in Patellar Fracture.
Jong Min SOHN ; Ju Hae JAHNG ; Nan Kyung HA ; Seong Tae CHO ; Hyoung Jun KIM ; Young Jun YANG
Journal of the Korean Knee Society 2005;17(1):127-132
PURPOSE: To evaluate the clinical results of cable fixation in patellar fractures followed by early ROM exercise and early weight bearing. MATERIALS AND METHODS: We analyzed 46 patients who had operation for transverse or comminuted patellar fractures with cable fixation from April 1995 to January 2003. Mean term of follow up was 15 months (range, 15~24 months). We reviewed the clinical and radiologic bony unions, ROM, time of weight bearings retrospectively. All cases were fixed with Dall-Miles' cable, and additional fixation was done with K-wires in 25 cases and with screws in 11 cases. At next day after surgery, all patients started CPM, except 3 cases who had severly comminuted fractures. Full weight bearing was started 2-3 days after surgery with LMB in full extended state. RESULTS: We gained bony union in all cases, Average ROM was 115 degree(80-130 degree) at postoperative 2nd week, all patients showed more than 130 degree at 8th week and final results showed normal ROM compared with opposite knee. During follow up, K-wires were migrated in 2 cases, but there was no difference in ROM or bony union compared with other patients. CONCLUSION: Fixations using Dall-Miles' cable for transverse or comminuted patellar fractures are considered to be enough stable for early ROM exercise and early weight bearing without major complications.
Follow-Up Studies
;
Fractures, Comminuted
;
Humans
;
Knee
;
Retrospective Studies
;
Weight-Bearing
4.Effect of Central Line Bundle Compliance on Central Line-Associated Bloodstream Infections.
Kyoung Hwa LEE ; Nan Hyoung CHO ; Su Jin JEONG ; Mi Na KIM ; Sang Hoon HAN ; Young Goo SONG
Yonsei Medical Journal 2018;59(3):376-382
PURPOSE: The present study aimed to evaluate the effect of central line (CL) bundle compliance on central line-associated bloodstream infections (CLABSIs) in different departments of the same hospital, including the intensive care unit (ICU) and other departments. MATERIALS AND METHODS: The four components of the CL bundle were hand hygiene, use of maximal sterile barrier precautions, chlorhexidine use, and selection of an appropriate site for venous access. Compliance of the CL bundle and CLABSIs were measured for every department [emergency room (ER), ICU, general ward (GW), and operating room (OR)]. A total of 1672 patients were included over 3 years (August 2013 through July 2016). RESULTS: A total of 29 CLABSI episodes (1.73%) were identified, and only 53.7% of the patients completed CL bundles. The performance rates of all components of the CL bundle were 22.3%, 28.5%, 36.5%, and 84.6% for the ER, ICU, GW, and OR, respectively. The highest CLABSI rate was observed in patients of the ICU, for whom all components were not performed perfectly. Conversely, the lowest CLABSI rate was observed for patients of GWs, for whom all components were performed. Among individual components, femoral insertion site [relative risk (RR), 2.26; 95% confidence interval (CI), 1.09–4.68], not using a full body drape (RR, 3.55; 95% CI, 1.44–8.71), and not performing all CL bundle components (RR, 2.79; 95% CI, 1.19–6.54) were significant variables associated with CLABSIs. CONCLUSION: This study provides direct evidence that completing all CL bundle components perfectly is essential for preventing CLABSIs. Customized education should be provided, according to specific weaknesses of bundle performance.
Catheter-Related Infections
;
Central Venous Catheters
;
Chlorhexidine
;
Compliance*
;
Education
;
Hand Hygiene
;
Humans
;
Intensive Care Units
;
Operating Rooms
;
Patients' Rooms
5.Safety and Effectiveness of Empagliflozin in Korean Patients with Type 2 Diabetes Mellitus: Results from a Nationwide Post-Marketing Surveillance
Jun Sung MOON ; Nam Hoon KIM ; Jin Oh NA ; Jae Hyoung CHO ; In-Kyung JEONG ; Soon Hee LEE ; Ji-Oh MOK ; Nan Hee KIM ; Dong Jin CHUNG ; Jinhong CHO ; Dong Woo LEE ; Sun Woo LEE ; Kyu Chang WON
Diabetes & Metabolism Journal 2023;47(1):82-91
Background:
To evaluate the safety and effectiveness of empagliflozin in routine clinical settings, we collected and assessed the clinical profiles of Korean patients with type 2 diabetes mellitus.
Methods:
This was a post-marketing surveillance study of empagliflozin 10 and 25 mg. Information on adverse events and adverse drug reactions (ADRs) was collected as safety data sets. Available effectiveness outcomes, including glycosylated hemoglobin (HbA1c) level, fasting plasma glucose, body weight, and blood pressure, were assessed.
Results:
The incidence rate of ADRs was 5.14% in the safety dataset (n=3,231). Pollakiuria, pruritis genital, and weight loss were the most common ADRs. ADRs of special interest accounted for only 1.18%, and there were no serious events that led to mortality or hospitalization. In the effectiveness data set (n=2,567), empagliflozin significantly reduced the mean HbA1c level and body weight during the study period by –0.68%±1.39% and –1.91±3.37 kg (both P<0.0001), respectively. In addition, shorter disease duration, absence of dyslipidemia, and higher baseline HbA1c levels were identified as the clinical features characteristic of a “responder” to empagliflozin therapy.
Conclusion
Empagliflozin is a safe and potent glucose-lowering drug in routine use among Korean patients with type 2 diabetes mellitus. It is expected to have better glycemic efficacy in Korean patients with poorly controlled type 2 diabetes mellitus.
6.Relation between Diet and Metabolic Acidosis in Chronic Dialysis Patients.
Young Ki LEE ; Young Joo KWON ; Nan Hee KIM ; Jong Woo YOON ; Sang Kyung JO ; Kyung So WE ; Yong Seop KIM ; Dae Ryong CHA ; Won Yong CHO ; Hee Jung PYO ; Hyoung Kyu KIM ; In Sun HUR
Korean Journal of Nephrology 1997;16(2):309-315
OBJECTIVES: It has been known that the incidence of protein malnutrition is high in patients with chronic renal failure(CRF). Although the effect of uremia on protein metabolism has not been known clearly, some reports suggest that metabolic acidosis, one of the uremic manifestations, increases protein catabolism. In a steady state, acid production is mainly related to dietary protein intake. Also severe acidosis causes anorexia and may decreases protein intake. But the relationship between diet and metabolic acidosis in chronic dialysis patients has not been established. In order to investigate the relation between metabolic acidosis and diet in CRF patients, we analyzed the diet intake and the nutritional status in chronic dialysis patients with or without severe metabolic acidosis. METHODS: We selected 10 patients as an acidosis group (total CO2 < 14.0mEq/L) and 10 patients with acid-base balance as control group (total CO2 > 17.5mEq/L) among patients who have been receiving hemodialysis. RESULTS: The mean ages and male to female ratios were similar in both groups, but in the underlying diseases of acidosis group, non-chronic glomerular nephritis (nonCGN) was more prevalent. Weekly hemodialysis time of the acidosis and the control group were 10.20, 11.45hours per week, respectively. The concentrations of pre-dialysis BUN were 89.74 vs. 71.25mg/dL and nPCR were 1.289 vs. 1.035g/kg/ day in each group.. However, the analysis of dietary protein intake showed no significant difference between both groups. The nutritional status of both groups were similar. CONCLUSION: In CRF patients, metabolic acidosis increases protein catabolism by stimulated amino acid oxidation and protein degradation in muscle. This study therefore suggests that patients with metabolic acidosis need to receive more adequate dialysis to correct the acidosis. And we recommend the indivisualization of protein intakes rather than the indiscriminate protein restriction in CRF patients with metabolic acidosis.
Acid-Base Equilibrium
;
Acidosis*
;
Anorexia
;
Dialysis*
;
Diet*
;
Dietary Proteins
;
Female
;
Humans
;
Incidence
;
Kidney Failure, Chronic
;
Male
;
Malnutrition
;
Metabolism
;
Nephritis
;
Nutritional Status
;
Proteolysis
;
Renal Dialysis
;
Uremia
7.2011 Clinical Practice Guidelines for Type 2 Diabetes in Korea.
Seung Hyun KO ; Sung Rea KIM ; Dong Joon KIM ; Seung Joon OH ; Hye Jin LEE ; Kang Hee SHIM ; Mi Hye WOO ; Jun Young KIM ; Nan Hee KIM ; Jae Taik KIM ; Chong Hwa KIM ; Hae Jin KIM ; In Kyung JEONG ; Eun Kyung HONG ; Jae Hyoung CHO ; Ji Oh MOK ; Kun Ho YOON
Diabetes & Metabolism Journal 2011;35(5):431-436
As in other countries, type 2 diabetes is major health concern in Korea. A dramatic increase in the prevalence of type 2 diabetes and its chronic complications has led to an increase in health costs and economic burdens. Early detection of high risk individuals, hidden diabetic patients, and improvement in the quality of care for the disease are the first steps to mitigate the increase in prevalence. The Committee of Clinical Practice Guidelines of the Korean Diabetes Association revised and updated the '3rd Clinical Practice Guidelines' at the end of 2010. In the guidelines, the committee recommended active screening of high risk individuals for early detection and added the hemoglobin A1c level to the diagnostic criteria for type 2 diabetes based on clinical studies performed in Korea. Furthermore, the committee members emphasized that integrating patient education and self-management is an essential part of care. The drug treatment algorithm based on the degree of hyperglycemia and patient characteristics were also updated.
Committee Membership
;
Diabetes Mellitus, Type 2
;
Health Care Costs
;
Hemoglobins
;
Humans
;
Hyperglycemia
;
Korea
;
Mass Screening
;
Patient Education as Topic
;
Prevalence
;
Self Care
8.2011 Clinical Practice Guidelines for Type 2 Diabetes in Korea.
Seung Hyun KO ; Sung Rea KIM ; Dong Joon KIM ; Seung Joon OH ; Hye Jin LEE ; Kang Hee SHIM ; Mi Hye WOO ; Jun Young KIM ; Nan Hee KIM ; Jae Taik KIM ; Chong Hwa KIM ; Hae Jin KIM ; In Kyung JEONG ; Eun Kyung HONG ; Jae Hyoung CHO ; Ji Oh MOK ; Kun Ho YOON
Diabetes & Metabolism Journal 2011;35(5):431-436
As in other countries, type 2 diabetes is major health concern in Korea. A dramatic increase in the prevalence of type 2 diabetes and its chronic complications has led to an increase in health costs and economic burdens. Early detection of high risk individuals, hidden diabetic patients, and improvement in the quality of care for the disease are the first steps to mitigate the increase in prevalence. The Committee of Clinical Practice Guidelines of the Korean Diabetes Association revised and updated the '3rd Clinical Practice Guidelines' at the end of 2010. In the guidelines, the committee recommended active screening of high risk individuals for early detection and added the hemoglobin A1c level to the diagnostic criteria for type 2 diabetes based on clinical studies performed in Korea. Furthermore, the committee members emphasized that integrating patient education and self-management is an essential part of care. The drug treatment algorithm based on the degree of hyperglycemia and patient characteristics were also updated.
Committee Membership
;
Diabetes Mellitus, Type 2
;
Health Care Costs
;
Hemoglobins
;
Humans
;
Hyperglycemia
;
Korea
;
Mass Screening
;
Patient Education as Topic
;
Prevalence
;
Self Care
9.Erratum: Author's Name Correction.
Seung Hyun KO ; Sung Rea KIM ; Dong Joon KIM ; Seung Joon OH ; Hye Jin LEE ; Kang Hee SHIM ; Mi Hye WOO ; Jun Young KIM ; Nan Hee KIM ; Jae Taik KIM ; Chong Hwa KIM ; Hae Jin KIM ; In Kyung JEONG ; Eun Kyung HONG ; Jae Hyoung CHO ; Ji Oh MOK ; Kun Ho YOON
Diabetes & Metabolism Journal 2011;35(6):642-642
No abstract available.
10.Effect of Oliguria Within 2 Months Postoperative Period on Graft Outcome in Renal Transplantation.
Oh Sang KWON ; Young Joo KWON ; Young Gee LEE ; Gil Mann JUNG ; Nan Hee KIM ; Mi Kyoung JANG ; Yong Sub KIM ; Ja Ryong KU ; Dae Ryong CHA ; Won Yong CHO ; Heui Jung PYO ; Hyoung Kyu KIM
Korean Journal of Medicine 1998;54(1):83-89
OBJECTIVE: Graft survival rate has been improved due to newly developed immunosuppressive agents, care of recipient and operative method. However, since many risk factors are still threatening the graft survival, many studies have been underway to identify such factors, one of which has been on delayed graft function(DGF). Extending the definition of DGF to oliguria within 2 months postoperative period(POP), we began this study in order to evaluate what effects oliguria within 2 months POP have on graft survival and what are the risk factors involved. METHODS: 103 patients who have had renal transplantation performed were divided into two groups (oliguric group and non-oliguric group), based on the presence or absence of oliguria within 2 months POP. Risk factors such as the recipient factors(age, gender), donor factors(age, gender), operative factors(warm ischemia time, intraoperative urine volume), HLA typing, postoperative hypotension, postoperative hypovolemia were compared between the two groups and the impact of oliguria on graft outcome was also analysed. RESULTS: 1) 14 were Oliguric patients and 89 were nonoliguric patients. 2) One-year graft survival rate was 40% in the oliguric group and 98% in the non-oliguric group(P<0.05). 3) As the result of analyzing the risk factors, non living related donor(living non-related donor and cadaver donor) were 7(50%) in the oliguric group and 16(18%) in the non-oliguric group(P<0.05). The mean intraoperative urine volume was 442m1 in the oliguric group and 774m1 in the non-oliguric group(P<0.05). The occurrence of postoperative hypotension were 5(36%) in the oliguric group and 1(1%) in the non-oliguric group(P<0.05). Other risk factors such as the recipient fractors, donor factors, warm ischemia time, HLA typing and postoperative hypovolemia were not significantly different between the two groups. CONCLUSION: Graft survival rate in the oliguric group was lower than in the non-oliguric group. The risk factors for oliguria were non living related donor, intraoperative urine volume lower than 500m1 and postoperative hypotension. In conclusion, renal transplantation from non living related donor needs to be proceeded with caution; the maintenance of intraoperative urine volume and the prevention of postoperative hypotension are essential for better graft outcome.
Cadaver
;
Graft Survival
;
Histocompatibility Testing
;
Humans
;
Hypotension
;
Hypovolemia
;
Immunosuppressive Agents
;
Ischemia
;
Kidney Transplantation*
;
Oliguria*
;
Postoperative Period*
;
Risk Factors
;
Tissue Donors
;
Transplants*
;
Warm Ischemia