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박종학 ( Jong Hak Park ),김정윤 ( Jung Youn Kim ),신준현 ( Jun Hyun Shin ),윤영훈 ( Young Hoon Yoon ),조한진 ( Han Jin Cho ),문성우 ( Sung Woo Moon ),최성혁 ( Sung Hyuk Choi ),이성우 ( Sung Woo Lee ),홍윤식 ( Yun Sik Hong ) 대한외상학회 2010 大韓外傷學會誌 Vol.23 No.1
Purpose: In Korea, most abdominal penetrating wounds are caused by stab wounds rather than gun-shot wounds. However, not many studies have been performed on stab injuries and their epidemiologic characteristics. Disagreements of opinions of obligatory surgical exploration and conservative treatment exist, and this subject is still being debated. Therefore, the authors studied the epidemiologic characteristics of abdominal stab wound patients visiting the emergency department and reviewed the proportion of patients that received nontherapeutic surgery and conservative treatment. Methods: This study included patients visiting the emergency department with abdominal stab wounds. A retrospective chart review was done on the abdominal stab wound patients. Sex, age, cause of injury, location of wound, initial vital signs, operation results, injured organs and CT & LWE results were reviewed. Results: The median age of the 121 patients was 40.9 years, of these patients, 88 were males, of which 52 (43.0%) were drunken. Of the patients that received non-therapeutic operations, only 3 patients (15.0%) were drunken, significantly lower than the therapeutic operation group. For the location of the wound, most patients were injured in the right and left upper quadrants, 27 patients each. The most common injured organ was the small bowel; 13 patients were injured in the small bowel. With abdominal CT scans and local wound explorations together, the results exhibited a sensitivity of 97%, a specificity of 44%, a positive predictive value of 56%, and a negative predictive value of 95%. Conclusion: In our study, the sensitivity was 97% when CT & LWE were performed together; thus we can conclude that CT and LWE can be used together to select the treatment method. Although in our study, the surgical indications in abdominal stab wound patients is not sufficient, our results showed a higher rate of nontherapeutic surgery compared to previous studies. Therefore, more research is needed to prevent unnecessary laparotomies in hemodynamically-stable patients without symptoms. (J Korean Soc Traumatol 2010;23:21-28)
김덕환 ( Duk Hwan Kim ),조영덕 ( Young Duck Cho ),김정윤 ( Jung Youn Kim ),윤영훈 ( Young Hoon Yoon ),이성우 ( Sung Woo Lee ),문성우 ( Sung Woo Moon ),최성혁 ( Sung Hyuk Choi ) 대한외상학회 2012 大韓外傷學會誌 Vol.25 No.4
Purpose: Trauma is one of the major causes of maternal and fetal mortality, and the most common cause of maternal trauma is a traffic accident. In Korea, data about traffic accidents in pregnant women are not widely collected and classified so far. Hence, we studied and analyzed the characteristics of injured pregnant women by the traffic accidents. Methods: From January 2002 to August 2011, pregnant women who were in traffic accidents visiting Emergency Department were studied. Pregnancy out come and the degree of the damage were determined through the retrospective analysis of the medical records. Results: The pregnant women who visited after traffic accidents were total 204 patients. Among them, 176 patients had no complication related to the traffic accidents, 28 patients had complications. The incidence of the complications in the 3rd trimester pregnants was statistically significant higher than that in the other trimesters. The analysis based on the mechanism shows more complications in the pedestrian injury. In the survey by the type of the vehicles, the complications from the trauma associated with a car had lower incidence. The patients arrived at the emergency center by walking had greater numbers than who arrived by an ambulance in the groups occurred the complications. The patients suffered complications who complained pain in trunk especially in abdomen and pelvis than in extremities and complained vaginal discharge, and those showed a statistically significant greater incidence. Conclusion: When pregnant women were injured by the traffic accidents, the factors related to the poor pregnant prognosis were trimester of pregnancy, means of visiting the emergency center, trauma mechanism, and complaining symptoms. Therefore, these factors may be used as a prognostic tool to predict an incidence of complications, length of hospital stay and rate of complications and can be used to plan for treatments. (J Trauma Inj 2012;25:132-138)
외상환자에 있어서 일차조사로서 경추부 전산화 단층 촬영의 예측인자
박경애 ( Guen E Pak ),한철 ( Chul Han ),조영덕 ( Young Duck Cho ),김정윤 ( Jung Youn Kim ),윤영훈 ( Young Hoon Yoon ),이성우 ( Sung Woo Lee ),문성우 ( Sung Woo Moon ),최성혁 ( Sung Hyuk Choi ) 대한외상학회 2011 大韓外傷學會誌 Vol.24 No.1
Purpose: Missing cervical pathology after injury may lead to disability and influence long-term survival. Controversies continue to evolve concerning the initial screening methods used to predict cervical spine injury. Through a retrospective chart review, we attempted to analyze and propose factors predictive of cervical trauma. Methods: Of all the patients who had visited the Emergency Department of Korea University, from January 2009 to December 2009, a retrospective review of the clinical records of the 217 patients who had undergone cervical spine computed tomography was done. We investigated whether we could predict the need for cervical spine computed tomography shortly after presentation in trauma patients by comparing the group with fractures and group without fractures and by finding risk factors showing significant differences between the two groups that might be used as guides in decision making. Results: Of the 217 subjects who underwent cervical spine computed tomography scans, 33 were identified with fractures of the cervical spine while 184 were not. The most common mechanisms of trauma, in order, for those with fractures were falls, followed by traffic accidents. We found that the injury severity score, multiple injuries, a high-energy injury mechanism, neurologic deficit, and pain and tenderness of the cervical spine showed statistically significant differences between the two groups. Conclusion: Fractures of the cervical spine that are not observed with simple radiography occur with a relatively high frequency in trauma patients. Consideration should be given to the risk factors for cervical spine fracture, and if pertinent, cervical spine computed tomography should be performed with speed for early diagnosis of cervical spine fractures. (J Korean Soc Traumatol 2011;24:18-24)
김정윤,양경훈 한국전문가시스템학회 1997 학술대회 Vol.2 No.1
Nowadays Information is critical role in managing corporation. This paper presents a model of Virtual Corporation, which will give competitive advantage in information society. We research a definition and characteristics of Virtual Corporation and a building method using fuzzy synthetic evaluation. The reason of using fuzzy theory is providing reasonable answers against uncertain and ambiguous questions $quot;Which team is the best appropriate of this project?$quot; Chapter 1 is written for background and reason of this research, Chapter 2 presents model and characteristics of Virtual Corporation and introduction of fuzry theory, Chapter 3 gives building method of Virtual Corporation using fizzy theory, Chapter 4 is example of our methodology and Chapter 5 is summary, conclusion and further research problem