1.Statistical Analysis of Death Cases in Pediatric Ward.
Kui Ae JANG ; Kyeung Bae PARK ; Jae Ock PARK ; Chang Hwi KIM ; Sang Jhoo LEE
Journal of the Korean Pediatric Society 1990;33(1):1-9
No abstract available.
2.Unmet healthcare Needs Status and Trend of Korea in 2019
Bich Na JANG ; Jae Hong JOO ; Hwi Jun KIM ; Eun-Cheol PARK ; Sung In JANG
Health Policy and Management 2021;31(2):225-231
Unmet healthcare is an important indicator to measure accessibility of healthcare services. To examine the latest status of unmet healthcare needs in South Korea, the four different data which is composed of nationally representative sample of South Korean population were used; the Korea Health and Nutrition Examination Survey (KNAHANES, 2007–2019), the Community Health Survey (CHS, 2008–2019), the Korea Health Panel Survey (KHP, 2011–2017), and the Korean Welfare Panel Study (KOWEPS, 2006–2019). The proportion of individuals reporting unmet healthcare needs were 5.8% (KNHANES), 5.3% (CHS), and 11.6% (KHP). Annual percentage change (APC) which identifies trend for the follow-up period was -9.5%, -8.0%, and -6.5%, respectively. The proportion of individuals reporting unmet healthcare needs due to cost were 1.1% (KNAHANES), 0.7% (CHS), 2.4% (KHP), and 0.4% (KOWEPS). The APC was -10.5%, -14.2%, -12.2%, and -19.6%, respectively. Compared to last year, the rate of unmet healthcare needs has declined in general.However, the low-income and the elderly population were reporting the highest rate of unmet health care needs, and the disparity between lowest and highest groups were remained. These results suggest that adequate benefit coverage is needed for low-income and elderly population.
3.Unmet Healthcare Needs Status and Trend of Korea in 2018
Jae Hong JOO ; Hwi Jun KIM ; Jieun JANG ; Eun-Cheol PARK ; Sung-In JANG
Health Policy and Management 2020;30(1):120-125
Unmet healthcare needs lead to increased disease severity, increased likelihood of complications, and worse disease prognosis. To examine the latest status of unmet healthcare needs in South Korea, the four different data configured with nationally representative sample of South Korean population were used: the Korea Health and Nutrition Examination Survey (KNAHANES, 2007–2018), the Community Health Survey (CHS, 2008–2018), the Korea Health Panel Survey (KHP, 2011–2016), and the Korean Welfare Panel Study (KOWEPS, 2006–2018). The proportion of individuals reporting unmet healthcare needs were 7.8% (KNHANES, 2018), 8.8% (CHS), and 10.8% (KHP, 2016). Annual percentage change which characterizes trend for the follow-up period was -9.1%, -3.2%, and -6.8%, respectively. The proportion of individuals reporting unmet healthcare needs due to cost were 1.2% (KNAHANES, 2018), 1.2% (CHS, 2018), 2.5% (KHP, 2016), and 0.5% (KOWEPS, 2018). Annual percentage change which characterizes trend for the follow-up period was -10.3%, -12.0%, -11.3%, and -18.8, respectively. The low-income population and the elderly population were vulnerable groups reporting the highest rate of unmet health care needs. The rate of unmet healthcare needs has been declining since the past decade, still, the disparity between different income groups and age groups suggests that there are many challenges to address.
4.Cadmium Induced Acute Lung Injury and TUNEL Expression of Apoptosis in Respiratory Cells.
Kun Young KWON ; Jae Hwi JANG ; Sun Young KWON ; Chi Heum CHO ; Hoon Kyu OH ; Sang Pyo KIM
Journal of Korean Medical Science 2003;18(5):655-662
We examined the ultrastructural features of the lung parenchyma and the expression of apoptosis of the respiratory cells by TUNEL technique. Male Sprague-Dawley rats (n=30) were intra-tracheally injected with cadmium (2.5 mg/kg) into both lungs. The light and electron microscopic features of the lung tissues were examined on Days 1, 3, 7 and 10 after the injection of cadmium. Specimen preparations for the light and electron microscopic TUNEL stains were performed. Ultrastructurally, on Days 1 and 3, the alveolar spaces were filled with edematous fluid, and desquamated type I epithelial cells. On Days 7 and 10, the alveolar spaces and interstitium were patchy infiltrated with young fibroblasts and some collagen deposition. The light microscopic TUNEL stain showed that apoptosis of the alveolar cells was most prominent on Day 1, and then the number of apoptosis was markedly decreased on Days 3, 7 and 10. The electron microscopic TUNEL stain showed the electron dense homogenous nuclear expression, and the formation of intra-nuclear blebs which protrude to the outside of nuclei. On Days 7 and 10, there are frequent apoptotic nuclear bodies in the alveolar macrophages. We could examine the identification of the equivocal apoptotic cells and various morphologic expression of apoptotic nuclei on the electron microscopic TUNEL stain.
Acetone/pharmacology
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Animals
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Apoptosis
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Cadmium/metabolism/*pharmacology
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Cell Nucleus/metabolism
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*In Situ Nick-End Labeling
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Lung/*cytology/*injuries/pathology/*ultrastructure
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Male
;
Microscopy, Electron
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Microscopy, Electron, Scanning
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Pulmonary Alveoli/metabolism
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Rats
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Rats, Sprague-Dawley
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Support, Non-U.S. Gov't
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Time Factors
5.Multiplex TaqMan qPCR Assay for Detection, Identification, and Quantification of Three Sclerotinia Species
Dong Jae LEE ; Jin A LEE ; Dae-Han CHAE ; Hwi-Seo JANG ; Young-Joon CHOI ; Dalsoo KIM
Mycobiology 2022;50(5):382-388
White mold (orSclerotinia stem rot), caused bySclerotinia species, is a major air, soil, or seed-transmitted disease affecting numerous crops and wild plants. Microscopic or culturebased methods currently available for their detection and identification are time-consuming, laborious, and often erroneous. Therefore, we developed a multiplex quantitative PCR (qPCR) assay for the discrimination, detection, and quantification of DNA collected from each of the three economically relevant Sclerotinia species, namely, S. sclerotiorum, S. minor, and S. nivalis. TaqMan primer/probe combinations specific for each Sclerotiniaspecies were designed based on the gene sequences encoding aspartyl protease. High specificity and sensitivity of each probe were confirmed for sclerotium and soil samples, as well as pure cultures, using simplex and multiplex qPCRs. This multiplex assay could be helpful in detecting and quantifying specific species of Sclerotinia, and therefore, may be valuable for disease diagnosis, forecasting, and management.
6.Hip Fracture Surgery without Transfusion in Patients with Hemoglobin Less Than 10 g/dL
You-Sung SUH ; Jae-Hwi NHO ; Jonghyeon SEO ; Byung-Woong JANG ; Jong-Seok PARK
Clinics in Orthopedic Surgery 2021;13(1):30-36
Background:
Hip fracture surgery is associated with blood loss, which may lead to adverse patient outcomes. The hemoglobin level declines gradually in most hip fracture cases involving femoral neck fractures and intertrochanteric fractures. It decreases further after hip fracture surgery due to perioperative bleeding. We developed a protocol, which avoids transfusion in hip fracture surgery, and reviewed the hemodynamic outcomes of patients with hemoglobin less than 10 g/dL without transfusion.
Methods:
From 2014 to 2019, we retrospectively recruited 34 patients with hip fractures and a hemoglobin level less than 10 g/dL, who refused to undergo transfusion. There were 19 patients with femoral neck fractures and 15 patients with intertrochanteric fractures. Our patient blood management (PBM) protocol involving 4,000 U erythropoietin (3 times a week) and 100 mg iron supplement (every day) was applied to all included patients. Intraoperatively, a cell saver and tranexamic acid were used. Postoperatively, the protocol was maintained until the patients’ hemoglobin level reached 10 g/dL. We evaluated the feasibility of our protocol, perioperative complications, and hemodynamic changes.
Results:
Nineteen patients with femoral neck fractures underwent bipolar hemiarthroplasty and 15 patients with intertrochanteric frac tures underwent internal fixation with a cephalomedullary nail. The mean hemoglobin level was 8.9 g/dL (range, 7.3–9.9 g/dL) pre operatively, 7.9 g/dL (range, 6.5–9.3 g/dL) immediately postoperatively, 7.7 g/dL (range, 4.3–9.5 g/dL) on postoperative day 1, 7.4 g/dL (range, 4.2–9.4 g/dL) on postoperative day 3, 8.1 g/dL (range, 4.4–9.7 g/dL) on postoperative day 5, 8.5 g/dL (range, 4.5–9.9 g/dL) on postoperative day 7, and 9.9 g/dL (range, 5.7–11.1 g/dL) on postoperative day 14. The average intraoperative bleeding was 206.2 ± 78.7 mL. There was no case associated with complications of anemia.
Conclusions
Hip fracture surgery in patients with hemoglobin less than 10 g/dL was feasible without the need for transfusion using our PBM protocol in 34 patients. Using this protocol, the operation was conducted safely despite the anemic condition of patients with fractures whose hemoglobin was less than 10 g/dL.
7.Arthroscopically-Assisted Reduction and Internal Fixation of Intra-Articular Fractures of the Lateral Tibial Plateau
Juhan KIM ; Dong Hwi KIM ; Jae Hwan LIM ; Hyunwoong JANG ; Young Wook KIM
The Journal of the Korean Orthopaedic Association 2019;54(3):227-236
PURPOSE: To evaluate the results of tibial lateral plateau fractures using arthroscopic-assisted reduction and internal fixation without cortical window or bone grafts. MATERIALS AND METHODS: From March 2009 to March 2017, 27 patients with Schatzker type II tibial plateau fractures with articular depression and displacement over 5 mm on a computed tomography (CT) scan, who were treated with arthroscopic reduction and internal fixation and followed-up for at least 18 months, were enrolled in this study. Under arthroscopic guidance, the depressed fracture fragment was reduced using a freer and fixed with 5.0 or 6.5 mm cannulated screws through the inframeniscal portal without a cortical window or bone graft. The clinical and radiological results were evaluated using a Rasmussen system. Second look arthroscopy was performed in thirteen patients during the implant removal operation. RESULTS: All fractures healed completely with a mean union time of 8.7 weeks (range from 8 to 12 weeks). Twenty four patients had good to excellent clinical results and 25 patients had good to excellent radiological results according to the Rasmussen classification. A well-healed articular surface with fibrocartilage was also found in 13 cases with second look arthroscopy. The 8 cases on CT scan at outpatient department follow-up showed bone union without bone grafting. CONCLUSION: Arthroscopic-assisted fixation of tibial lateral plateau fractures is a useful method without a cortical window or bone graft that produces good clinical results.
Arthroscopy
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Bone Transplantation
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Classification
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Depression
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Fibrocartilage
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Follow-Up Studies
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Humans
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Intra-Articular Fractures
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Methods
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Outpatients
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Tomography, X-Ray Computed
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Transplants
8.Comparative Study of Compliance for Venous Thromboembolism Prophylaxis (American College of Chest Physicians Guideline and American College of Orthopedic Surgeons Guideline) in High Risk Patients with a Venous Thromboembolism
You Sung SUH ; Jae Hwi NHO ; Byung Woong JANG ; Deokwon KANG ; Sung Hun WON
The Journal of the Korean Orthopaedic Association 2019;54(4):317-326
PURPOSE: To compare and analyze the rate of prevention of two venous thromboembolism prophylaxis guidelines in patients with artificial joint arthroplasty and hip joint fracture. Proper prophylaxis for preventing thromboembolism in orthopedic surgery is significant because of this fetal complication. MATERIALS AND METHODS: This study compared and retrospective analyzed the rate of prevention using the medical records and radiographs of patients who underwent orthopedic surgery from March 2009 to February 2011 according to the American College of Chest Physicians (ACCP) guidelines and from March 2012 to February 2014 according to the American Academy of Orthopedic Surgeons (AAOS) guidelines. RESULTS: The guidelines for venous thromboembolism prophylaxis have been applied to patients with artificial joint replacement and hip joint fracture, the compliance rate of the ACCP guidelines was 56.0% before surgery, 67.0% after surgery with chemical prophylaxis, and 80.5% with mechanical prophylaxis. In addition, the compliance rate of the AAOS guidelines was 74.1% with chemical prophylaxis, and 88.3% with mechanical prophylaxis, which was higher than the ACCP guidelines. The compliance rates of mechanical and chemical prophylaxis before and after surgery of the ACCP guidelines, and the compliance rate of mechanical and chemical prophylaxis of the AAOS guidelines were compared and analyzed. The results revealed statistical significance (p<0.05) before and after total knee replacement arthroplasty and hip joint fracture internal fixation and total high risk orthopedic surgery. CONCLUSION: Raising the compliance rate of prophylaxis of venous thromboembolism in high risk orthopedic surgery is necessary and people should follow the guidelines for a unified direction depending on which situation they are in.
Arthroplasty
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Arthroplasty, Replacement, Knee
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Compliance
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Hip Joint
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Humans
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Joints
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Medical Records
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Orthopedic Procedures
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Orthopedics
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Retrospective Studies
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Surgeons
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Thorax
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Thromboembolism
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Venous Thromboembolism
9.Midterm Outcomes of Intramedullary Fixation of Intertrochanteric Femoral Fractures Using Compression Hip Nails: Radiologic and Clinical Results
You-Sung SUH ; Jae-Hwi NHO ; Min Gon SONG ; Dong Woo LEE ; Byung-Woong JANG
Clinics in Orthopedic Surgery 2023;15(3):373-379
Background:
Various implants are used to treat intertrochanteric fractures. However, the optimal implant to stabilize intertrochanteric femoral fractures is still a matter of debate. The purpose of the present study was to evaluate the midterm outcomes of patients treated using compression hip nails (CHNs).
Methods:
Between March 2013 and April 2018, 164 patients with intertrochanteric femoral fractures who were treated with internal fixation using CHNs were enrolled in this study. The mean age of the patients was 79.6 years. We retrospectively collected and estimated information such as reduction state, implant position, operation time, blood loss, hospital stay, time to achieve union, clinical scores (Harris hip score [HHS] and EuroQol five-dimensional [EQ-5D]), intraoperative complications (such as lag jamming and drill bit breakage), failure of fixation, avascular necrosis, and surgical site infection.
Results:
The mean follow-up period was 39.69 months. Eight percent of the patients required an open reduction. The mean operation time was 131 minutes, the mean blood loss was 221.19 mL, the mean hospital stay was 20.66 days, and the average time to union was 18 weeks. Intraoperative complications included 8 cases of breakage of the drill bit while making distal holes. The failure rate was 3.7% and revision surgery was performed in 6 cases (for cut-out in 5 and pull-out of the lag screw in 1). Asymptomatic venous thromboembolism occurred in 2 cases and hematoma requiring intervention occurred in 1 case. There were no other complications such as avascular necrosis, infection, and lateral irritation. At the 2-year follow-up, the averages of HHS and EQ-5D were 71.54 and 0.68, respectively.
Conclusions
Among the implants used to treat intertrochanteric femoral fractures, CHNs had a surgical failure of 3.7% and showed good radiologic and clinical results.
10.Management of Blood Loss in Hip Arthroplasty: Korean Hip Society Current Consensus.
Joo Hyoun SONG ; Jang Won PARK ; Young Kyun LEE ; In Sung KIM ; Jae Hwi NHO ; Kyung Jae LEE ; Kwan Kyu PARK ; Yeesuk KIM ; Jai Hyung PARK ; Seung Beom HAN
Hip & Pelvis 2017;29(2):81-90
The volume of hip arthroplasty is stiffly increasing because of excellent clinical outcomes, however it has not been shown to decrease the incidence of transfusions due to bleeding related to this surgery. This is an important consideration since there are concerns about the side effects and social costs of transfusions. First, anemia should be assessed at least 30 days before elective hip arthroplasty, and if the subject is diagnosed as having anemia, an additional examination of the cause of the anemia should be carried and steps taken to address the anemia. Available iron treatments for anemia take 7 to 10 days to facilitate erythropoiesis, and preoperative iron supplementation, either oral or intravenous, is recommended. When using oral supplements for iron storage, administer elemental iron 100 mg daily for 2 to 6 weeks before surgery, and calculate the dose using intravenous supplement. Tranexamic acid (TXA) is a synthetic derivative of the lysine component, which reduces blood loss by inhibiting fibrinolysis and clot degradation. TXA is known to be an effective agent for reducing postoperative bleeding and reducing the need for transfusions in primary and revision total hip arthroplasties. Patient blood management has improved the clinical outcome after hip arthroplasty through the introduction and research of various agents, thereby reducing the need for allogeneic blood transfusions and reducing the risk of transfusion-related infections and the duration of hospitalizations.
Anemia
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Arthroplasty*
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Blood Transfusion
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Consensus*
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Erythropoiesis
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Fibrinolysis
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Hemorrhage
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Hip*
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Hospitalization
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Humans
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Incidence
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Iron
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Lysine
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Tranexamic Acid