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Trauma surgery without proper compensation under the current Korean National Health Insurance System
Kyoungwon Jung,Yunjung Heo,John Cook-Jong Lee,Mijin Lee,Suni Son,Hee Suk Park,Joo-Ok Kim,Jeong Hee Lee 대한외과학회 2017 Annals of Surgical Treatment and Research(ASRT) Vol.92 No.5
Purpose: This study aimed to evaluate the situations and problems of the current health insurance fees for trauma surgeries. Methods: We reviewed the medical records and billing data from trauma surgeries performed in the hospital from August 2012 to July 2014. The name and number of surgeries were investigated and the code and number of operations prescribed by surgeons were compared with the number of cases actually billed to insurance. In addition, the results returned by the Health Insurance Review & Assessment Services (HIRA) after deduction were investigated and compared to verify the insurance review findings. Results: During the study period, total 1,534 trauma surgical procedures were performed for a total of 253 trauma patients. Based on names, 1,092 procedures were performed; however, 442 cases (28.8%) could not be prescribed because of lack of proper insurance codes for the procedures. A total of 1,046.5 surgical procedures were prescribed by surgeons, adjusted by the insurance team, and finally billed to the HIRA; 162 bills were returned from the HIRA after rate reductions, corresponding to a reduction rate of 15.5%. The major reason for reduction was “fee criteria and limited number”. The compensation rate for billed surgical procedures was 84.5%. Conclusion: The high reduction and low compensation rate for trauma surgery under the current Korean National Health Insurance System need to be reviewed and improved. Furthermore, it is necessary to establish new criteria for surgical procedures fees for latest ones such as damage control surgery performed on severe trauma patients.
권준식,Jin-Hee Lee,황경진,Heo Yunjung,조항주,이국종,정경원 대한의학회 2020 Journal of Korean medical science Vol.35 No.50
Background: Trauma mortality review is the first step in assessing the quality of the trauma treatment system and provides an important basis for establishing a regional inclusive trauma system. This study aimed to obtain a reliable measure of the preventable trauma death rate in a single province in Korea. Methods: From January to December 2017, a total of 500 sample cases of trauma-related deaths from 64 hospitals in Gyeonggi Province were included. All cases were evaluated for preventability and opportunities for improvement using a multidisciplinary panel review approach. Results: Overall, 337 cases were included in the calculation for the preventable trauma death rate. The preventable trauma death rate was estimated at 17.0%. The odds ratio was 3.97 folds higher for those who arrived within “1–3 hours” than those who arrived within “1 hour.” When the final treatment institution was not a regional trauma center, the odds ratio was 2.39 folds higher than that of a regional trauma center. The most significant stage of preventable trauma death was the hospital stage, during which 86.7% of the cases occurred, of which only 10.3% occurred in the regional trauma center, whereas preventable trauma death was more of a problem at emergency medical institutions. Conclusion: The preventable trauma death rate was slightly lower in this study than in previous studies, although several problems were noted during inter-hospital transfer; in the hospital stage, more problems were noted at emergency medical care facilities than at regional trauma centers. Further, several opportunities for improvements were discovered regarding bleeding control.
초발수성 마이크로 포어에서 액적 충돌 기반의 마이크로 액적 생성
전병은(Byeongeun Jeon),고영수(Youngsu Ko),최인희(Inhee Choi),허윤정(Yunjung Heo),이충엽(Choongyeop Lee) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
When an aqueous liquid drop is impinged on a superhydrophobic porous surface, the liquid penetration may occur in the form of a liquid jet or micro droplets depending on an impact velocity. Here by impacting a liquid drop on a superhydrophobic surface with a single micro pore, we demonstrate that it is possible to dispense a single micro drop of a controlled size in a reproducible way, while proposing the impact condition (i.e., impact velocity) under which a single micro droplet is generated, as a function of a micro pore size and a liquid viscosity. It is found that a larger impact velocity is required to generate a single micro drop as a micro pore size decreases, while an impact velocity for a single micro drop generation appears to be rather insensitive to the liquid viscosity. Also, the diameter of micro drop is found to be roughly 1.5 times of the diameter of micro pore for all tested pore sizes, such that about 75 μm-diameter micro droplet is obtained with a 50 μm-diameter micro pore. As an application example, we demonstrate the successful printing of an array of micro droplets on a paper. We believe that the present approach can be a simple and effective strategy to micro droplet printing without the typical issues associated with droplet printing, such as clogging or satellite droplet generation.
Risk factors for mortality of severe trauma based on 3 years` data at a single Korean institution
Joohyun Sim,Jaeheon Lee,John Cook-Jong Lee,Yunjung Heo,Heejung Wang,Kyoungwon Jung 대한외과학회 2015 Annals of Surgical Treatment and Research(ASRT) Vol.89 No.4
Purpose: This study aimed to determine the mortality rate in patients with severe trauma and the risk factors for trauma mortality based on 3 years’ data in a regional trauma center in Korea. Methods: We reviewed the medical records of severe trauma patients admitted to Ajou University Hospital with an Injury Severity Score (ISS) > 15 between January 2010 and December 2012. Pearson chi-square tests and Student t-tests were conducted to examine the differences between the survived and deceased groups. To identify factors associated with mortality after severe trauma, multivariate logistic regression was performed. Results: There were 915 (743 survived and 172 deceased) enrolled patients with overall mortality of 18.8%. Age, blunt trauma, systolic blood pressure (SBP) at admission, Glasgow Coma Scale (GCS) at admission, head or neck Abbreviated Injury Scale (AIS) score, and ISS were significantly different between the groups. Age by point increase (odds ratio [OR], 1.016; P = 0.001), SBP ≤ 90 mmHg (OR, 2.570; P < 0.001), GCS score ≤ 8 (OR, 6.229; P < 0.001), head or neck AIS score ≥ 4 (OR, 1.912; P = 0.003), and ISS by point increase (OR, 1.042; P < 0.001) were significant risk factors. Conclusion: In severe trauma patients, age, initial SBP, GCS score, head or neck AIS score, and ISS were associated with mortality.
초발수성 마이크로 포어에서 액적 충돌 기반의 마이크로 액적 생성
전병은(Byeongeun Jeon),고영수(Youngsu Ko),최인희(Inhee Choi),허윤정(Yunjung Heo),이충엽(Choongyeop Lee) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.11
When an aqueous liquid drop is impinged on a superhydrophobic porous surface, the liquid penetration may occur in the form of a liquid jet or micro droplets depending on an impact velocity. Here by impacting a liquid drop on a superhydrophobic surface with a single micro pore, we demonstrate that it is possible to dispense a single micro drop of a controlled size in a reproducible way, while proposing the impact condition (i.e., impact velocity) under which a single micro droplet is generated, as a function of a micro pore size and a liquid viscosity. It is found that a larger impact velocity is required to generate a single micro drop as a micro pore size decreases, while an impact velocity for a single micro drop generation appears to be rather insensitive to the liquid viscosity. Also, the diameter of micro drop is found to be roughly 1.5 times of the diameter of micro pore for all tested pore sizes, such that about 75 μm-diameter micro droplet is obtained with a 50 μm-diameter micro pore. As an application example, we demonstrate the successful printing of an array of micro droplets on a paper. We believe that the present approach can be a simple and effective strategy to micro droplet printing without the typical issues associated with droplet printing, such as clogging or satellite droplet generation.
Subin Kim,Min Ho An,Dong Yun Lee,Min-Gyu Kim,Gyubeom Hwang,Yunjung Heo,Seng Chan You 대한신경정신의학회 2024 PSYCHIATRY INVESTIGATION Vol.21 No.9
Objective This study aimed to investigate the impact of coronavirus disease-2019 (COVID-19) on suicide attempts and suicide deaths in South Korea, focusing on age and sex differences. Methods We analyzed the monthly number of suicide attempts and suicide deaths during pre-pandemic (January 2016–February 2020) and pandemic (March–December 2020) periods using nationally representative databases. We conducted an interrupted time series analysis and calculated the relative risk (RR) with a 95% confidence interval (CI), categorizing subjects into adolescents (<18), young adults (18–29), middle-aged (30–59), and older adults (≥60). Results During the pandemic, the number of suicide attempts abruptly declined in adolescents (RR [95% CI] level change: 0.58 [0.45–0.75]) and older adults (RR [95% CI] level change: 0.74 [0.66–0.84]). In older males, there was a significant rebound in the suicide attempt trend (RR [95% CI] slope change: 1.03 [1.01–1.05]). The number of suicide deaths did not change among age/sex strata significantly except for older males. There was a brief decline in suicide deaths in older males, while the trend showed a following increase with marginal significance (RR [95% CI] level change: 0.76 [0.66–0.88], slope change: 1.02 [1.00–1.04]). Conclusion This study suggests the heterogeneous impact of the COVID-19 pandemic on suicide attempts and suicide deaths across age and sex strata in South Korea. These findings highlight the need for more targeted mental health interventions, given the observed trends in suicide attempts and suicide deaths during the pandemic. Psychiatry Investig 2024;21(9):1007-1015