• 조명전기설비학회논문지
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• 제26권1호
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• pp.87-93
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• 2012

Due to the development of information and communication, there is a rising interest on WBAN(Wireless Body Area Network) that maintain and check the human being health. According to the application of different quality of service and a special mechanism for transferring medical data are required in WBAN environment. In this paper, we proposed the new formed superframe that has CSMA/CA based TDMA scheduling and CSMA/CA used IEEE 802.15.4 in order to process emergency data and on-demand data in WBAN environment. We estimated performance of the proposed MAC protocol by compared performance of other MAC protocols that are IEEE 802.15.4 MAC protocl and Z-MAC protocol has contention access period based TDMA scheduling.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2009년도 춘계학술대회
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• pp.749-751
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• 2009

반도체 검사장비의 제어 및 모니터링을 위해서 zigbee를 사용하여 센서네트워크를 구성하였다. 그러나 일반적인 센서네트워크와는 달리 반도체 검사장비는 검사데이터 중 긴급한 조치를 요하는 데이터가 발생할 경우 다른 어떤 데이터에 비해 우선적으로 관리서버에 데이터를 전송하여야 한다. 따라서 본 논문에서는 데이터의 우선순위 및 긴급 데이터전송을 위한 MAC 프로토콜 설계하고 이를 제안하려한다.

• International Journal of Computer Science & Network Security
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• 제21권3호
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• pp.165-171
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• 2021

Vehicular Ad hoc Network (VANET) is an extension paradigm of moving vehicles to communicate with wireless transmission devices within a certain geographical limit without any fixed infrastructure. The vehicles have most important participation in this model is usually positioned quite dimly within the certain radio range. Fuzzy based multi-hop broadcast protocol is better than conventional message dissemination techniques in high-mobility VANETs, is proposed in this research work. Generally, in a transmission range the existing number of nodes is obstacle for rebroadcasting that can be improved by reducing number of intermediate forwarding points. The proposed protocol stresses on transmission of emergency message projection by utilization subset of surrounding nodes with consideration of three metrics: inter-vehicle distance, node density and signal strength. The proposed protocol is fuzzy MHB. The method assessment is accomplished in OMNeT++, SUMO and MATLAB environment to prove the efficiency of it.

• 중환자간호학회지
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• 제9권1호
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• pp.15-26
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• 2016

Purpose: The aim of this study was to identify thinking strategies in the complicated decision-making process based on real patient-based data of triage nurses in the emergency department (ED). Methods: This study used the 'think aloud' method to collect data from 8 triage nurses from one general hospital ED in South Korea. The data were analyzed with protocol analysis using thinking strategies. Results: The triage process was divided into three stages. The first stage consisted of 8 thinking strategies, including searching for information. They used intuition based on directly observed concepts for identifying a crisis. The second stage consisted of 17 thinking strategies related to the decision-making process. They assessed patients and generated a hypothesis to try to understand their health problems through analytic thinking. The third stage consisted of 10 thinking strategies, including qualifying. They considered the situation of the ED and properly triaged the patients. During the triage process, they frequently used judging the value and searching for information on 17 thinking strategies. Conclusions: Triage nurses demonstrated various connected thinking strategies for each stage. Based on our results, further studies should be done to develop a triage education program.

• 한국응급구조학회지
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• 제13권2호
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• pp.87-98
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• 2009

Purpose : This study set out to compare the educational effects of a video self-instruction program for child CPR education on childcare teachers by applying the 2006 KACPR Guideline. By adopting the nonequivalent control group posttest quasi-experimental design, the study examined the educational effects on a group that did not receive instructions from the instructor, another group that received his instructions, and the other group that received an extra three-minute practice training session in addition to instructions. Methods : Data were gathered from August 6 to 18, 2008. As for research tools, the Knowledge Instrument of CPR by Connolly (2006) was used along with the National Practice Test Protocol for C1ass 1 Emergency Medical Technicians (2007) and Common Protocol for CPR (2006) to examine the performance of child CPR. By shooting the guide screen of $Resusci^{(R)}$ Junior CPR Manikin of Leardal with a video camera and using the Skill Guide Checklist of the Common Protocol for CPR (2006), the subjects' technical accuracy of chi1d CPR was evaluated. There were three subject groups: 29 childcare teachers randomly assigned to received the video self-instruction program training for chi1d CPR and no instructions from the instructor made up the control group; 22 childcare teachers randomly assigned to received the program training and instructions from the instructor made up experiment group I; 23 childcare teachers randomly assigned to received an extra three-minute practice training session in addition to the program training and the instructions made up experiment group II. The gathered data were analyzed with SPSS/PC+ (Version 14.0) in frequency, percentage, $X^2$-test, ANOVA, Scheffe test. Results : 1) There were no statistically significant differences (F=1.030, p=.362) among the groups in terms of knowledge scores after the child CPR education. 2) There were statistically significant differences (F=13.625, p=.000) among the groups in terms of performance abilities after the child CPR education. 3) There were no statistically significant differences (F=1.610, p=.207) among the groups in terms of technical accuracy of mouth-to-mouth resuscitation after the child CPR education 4) There were no statistically significant differences (F=1.484, p=.234) among the groups in terms of technical accuracy of chest compression after the child CPR education. Conclusion : The results indicate that childcare teachers can improve their performance abilities in child CPR when the instructors are active with their instructions and extra practice hours are secured through a VSI program. It's also needed to provide education with increasing concentration ratio about the items of lower knowledge points in order to help the teachers learn the accurate theory of child CPR. And there should be VSI programs of diverse conditions to increase the effects of child CPR training among childcare teachers.

• 한국의료질향상학회지
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• 제2권1호
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• pp.58-67
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• 1995

이 연구는 3차 진료기관 응급실의 기능을 정상화하기 위한 기초 자료를 수집하기 위하여, 한 3차 진료기관 응급실을 방문한 환자를 대상으로, 입원 결정서 발부와 환자의 입원 결정 양상 및 이에 영향을 미치는 요인을 파악하였다. 또한 적절성 평가 지침을 이용하여 응급실을 통한 입원의 적절성을 평가하였고 입원의 적절성과 응급실 입원 대기시간의 적절성에 영향을 미치는 요인을 분석하였다. 입원 결정서 발부에 영향을 미치는 요인은 환자의 내 외과계 구분, 진료과수, 환자 상태, 방문 경로, 방문 시간과 방문 요일이었다. 입원 결정서 발부 후 환자의 입원 여부는 환자의 성, 환자 상태, 방문 경로, 방문 요일에 따라 달리 나타났다. 환자의 연령, 내 외과계 구분과 방문 요일에 따라 입원의 적절성에 차이를 보였다. 입원 대기시간은 환자의 연령이 증가할수록 적절성이 낮았다. 이 연구를 통하여 응급실을 통한 입원 중 반수 이상의 입원이 부적절한 입원으로 평가되었고, 이 중 일부는 입원을 빨리 하기 위한 방법의 하나로 응급실을 편법으로 이용하고 있기 때문인 것으로 판단되었다. 또한 입원 결정서가 발부된 환자 중 상당수의 환자가 병상을 구할 수 없어 입원하지 못하고 있는 것으로 보아, 3차 진료기관의 환자 집중 현상과 응급실 과밀화 요인 해소를 위한 의료정책의 수립이 필요함을 확인할 수 있었다.

• 대한임상독성학회지
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• 제2권2호
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• pp.96-100
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• 2004

Purpose: This study was to investigate the effects of ethanol in ingested patients by analyzing data from a single institution's registry, Methods: We conducted a prospective study of 50 patients who has ingested drugs with/without ethanol came to emergency department from January 2004 to May 2004. Only patients over 18 years of age were included. Clinical characteristics, general and specific treatment, laboratory finding, complication, and clinical outcomes were obtained from protocol. Patients were divided into two groups: drug ingested with alcohol (ethanol group, n=18), and ingested without alcohol (non-ethanol group, n=32). Results: The age, the amout of ingestion, the time to treatment, the systolic blood pressure, the diastolic blood pressure and the shock duration were not different between two groups. The AST level with the ethanol group was higher than with the non-ethanol group ($230.94\pm518.88$ U/L vs $43.22\pm63.39$ U/L, p=0.002). The ALT level with the ethanol group was higher than with the non-ethanol group ($97.06\pm152.98$ U/L vs $32.75\pm43.10$ U/L, p=0.001). The lactic acid level with the ethanol group was higher than with the non-ethanol group ($7.40\pm6.33$ mmol/L vs $3.77\pm3.10$ mmol/L, p=0.001). The hospital stay duration and the admission rate were not different between two groups. Conlusions: The ethanol increased the levels of serum AST, ALT and lactic acid in intoxicated patients. But the ethanol dose not increase admission rate and duration of admission stay in intoxicated patients.

• 중환자간호학회지
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• 제13권1호
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• pp.15-26
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• 2020

Purpose : This study aimed to examine factors affecting radiation protective behaviors among emergency room nurses by assessing knowledge, attitude, and environment for radiation protection. Methods : The study employed a cross-sectional design. Subjects were a convenience sample of 129 nurses working in emergency rooms of three general hospitals. Data were collected using self-report questionnaires and analyzed using t-test, ANOVA, Pearson correlation coefficients, and multiple regression. Results : The more the nurses received radiation safety education (t=2.26, p=.026), used protective gear (t=4.40, p<.001), and took health screenings (t=2.65, p=.009), the higher their levels of radiation protection behavior. There were significant relations between radiation protective behaviors and attitude (r=.27, p=.002), and radiation protective behaviors and environment for radiation protection (r=.55, p<.001). The factors affecting radiation protective behaviors were protective environment (β=.53, p<.001), protective attitude (β=.32, p<.001), and the use of protective gear (β=.24, p=.002). Conclusions : The government, hospital administrators, and radiation protection-related organization should adopt the following measures to protect emergency room nurses from radiation: research and development of shield instrument, medical examination for emergency room nurses, protocol development of radiation protection behaviors, extension of education chances of radiation protection, and encouraging the use of protective equipment.

• 한국응급구조학회지
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• 제22권2호
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• pp.79-91
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• 2018

Purpose: To assess the satisfaction of continuing education and need assessment according to job characteristics in emergency medical technicians (EMTs). Methods: A self-reported questionnaire was completed by 222 EMTs from May 28 to July 6, 2018. It consisted of questions on the method and need of continuing education, and satisfaction regarding education time, assessed using a 5-point Likert scale. Descriptive statistics, a chi-square test, and ANOVA were used to analyze the data. Results: The responses to questions on the method of continuing education (${\rho}=.000$), satisfaction of regarding the duration of continuing education (${\rho}=.029$), method (${\rho}$< .001), and topic (${\rho}=.000$) varied according to the differences in job characteristics of EMTs. Assessment and management of patients with multiple trauma ($4.17{\pm}.735$) emerged as the most important while license examination protocol for EMTs ($3.33{\pm}.968$) was rated the least important among topics for continuing education. Separation of continuing education (${\rho}$< .001), education method (${\rho}$< .001), education topic (${\rho}$< .001), and necessity of quality management of continuing education (${\rho}$< .001) differed according to the job characteristics of EMTs. Conclusion: It is important to provide a suitable program catering to the diverse requirements of EMTs. The education programs must be tailored to the needs of level 1 and level 2 EMTs separately. To improve the quality of education, it is necessary to evaluate the continuing effects.

• Journal of Trauma and Injury
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• 제31권3호
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• pp.151-158
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• 2018

Purpose: The regional emergency medical centers manage the patients with major blunt trauma according to the process appropriate to each hospital rather than standardized protocol of the major trauma centers. The primary purpose of this study is to evaluate the effectiveness and influence on prognosis of additional cervical-thoracic-lumbar-spine computed tomography (CTL-spine CT) scan in diagnosis of spinal injury from the victim of major blunt trauma with impaired consciousness. Methods: The study included patients visited the urban emergency medical center with major blunt trauma who were over 18 years of age from January 2013 to December 2016. Data were collected from retrospective review of medical records. Sensitivity, specificity, positive predictive value, and negative predictive value were measured for evaluation of the performance of diagnostic methods. Results: One hundred patients with Glasgow coma scale ${\leq}13$ underwent additional CTL-spine CT scan. Mechanism of injury was in the following order: driver, pedestrian traffic accident, fall and passenger accident. Thirty-one patients were diagnosed of spinal injury, six of them underwent surgical management. The sensitivity of chest, abdomen and pelvis CT (CAP CT) was 72%, specificity 97%, false positive rate 3%, false negative rate 28% and diagnostic accuracy 87%. Eleven patients were not diagnosed of spinal injury with CAP CT and C-spine lateral view, but all of them were diagnosed of stable fractures. Conclusions: C-spine CT scan be actively considered in the initial examination process. When CAP CT scan is performed in major blunt trauma patients with impaired consciousness, CTL-spine CT scan or simple spinal radiography has no significant effect on the prognosis of the patient and can be performed if necessary.