응급실 환자 방사선학적 검사 시 midazolam과 propofol 사용의 효율성 비교

주신,조남수,조수형,김명룡,이철갑 대한응급의학회 2002 대한응급의학회지 Vol.13 No.2

Purpose: This study was performed to evaluate the usefulness of propofol in radiology studies by comparing propofol sedation with midazolam for patients who do not comply with their doctor's requests and need an injection of a sedative to be treated for a safe and quick recovery without complications. Methods: Among adult patients who were admitted and checked using CT and MRI in our emergency medical center from February 2001 to August 2001, the patients who required sedation because of the lack of cooperation with ER doctors were studied. Of 49 patients, 23 patients (Group M) were injected with midazolam, and 26 patients (Group P) were injected with propofol. Results: In both groups, the systolic BP and the diastolic BP decreased, but group P's BP decreased more than group M's (p<0.05). In group M, the decrease of SPO_2 was statistically significant, but neither of the groups required emergency care. Although, Group M didn't require emergency care for SpO_2, they did require more emergency care for apnea than Group P did. Group P's time required for an examination to be performed was shorter than group M's Group P's duration for occurrence of movement was shorter than Group M's, but this difference was not statistically significant. Regardless of which sedative was used, there was no difference in the satisfaction of the radiology technician with regards to group M and group P. Conclusion: When the patients were injected with a low-dosage of propofol, they showed effects similar to those observed in patients in injected with midazolam, and there were no complications that required emergency care. The usage of propofol is thought to be a good choice, except for contraindications, for short-time radiology examinations.

응급의료센터에 내원한 뇌졸중 환자의 임상적 연구

주신,조수형,조남수 조선대학교 부설 의학연구소 2002 The Medical Journal of Chosun University Vol.27 No.2

Background: Cerebrovascular disease has a high death rate and serious aftereffects, and after one year, over 50% of stroke patients die or live in dependency. Recently in Korea, many studies about risk factors of cerebrovacular disease are reported, but according to changes of dietary (food) style, society and economy, there are some epidemiologic changes. This study was performed to correlate incidence of cerebrovascular disease with hypertension and diabetes mellitus, and also to investigate the incidence rate of ischemic stroke and hemorrhagic stroke and incidence time, season. Methods: During January 1,2001 to December 31,2001, 375 patients were diagnosed to cerebrovascular disease by CT and MRI. 304 patients were selected to have further studies performed who had a sufficient registry (chart, records). We investigated a retrospective study on ischemic stroke and hemorrhagic stroke respectively, about the age of incidence, sex, territory, season and the correlation between stroke and hypertension, diabetes mellitus. Results: Of the 304 patients, 102 patients were of ischemic stroke, and the average age of males were 62.7 years old, and that of females were 61.7 years old. Male to female ratio was 1: 1.125. Male patients were 47.1% (48 patients). and female patients were 52.9% (54 patients). In the distribution of the disease site, the middle cerebral arterial territory was the highest, with 50% (61 patients), and the risk factors of stroke were hypertension, 60.7% (67 patients) and diabetes mellitus, 24.5% (25 patients), respectively. 202 patients were of hemorrhagic stroke, and the average age of males were 52.4 years old and females were 68.1 years old. Male to female ratio was 1.126:1 (Male patients were 52.9% (107 patients), and female patients were 48.1%(95 patients). The distribution of disease site, subarachnoid hemorrhage were the highest, with 32.6% (66 patients), and the risk factors of stroke were hypertension, 57. 9% (117 patients), diabetes mellitus, 12.5% (25 patients), respectively. Conclusion: In the current status of cerebrovascular disease in Korea. it is reported that the incidence of hemorrhagic stroke has decreased, but in our study, hemorrhagic stroke has doubled, from what it had done before. Because it is considered that hospitals which can treat cerebral hemorrhagic patients are of a small number, relatively in Gwangju and the Chonnam area comparing to other areas. The age of incidence were early sixties, but it showed that the trends of getting older were greater, than those reported up until now in Korea.

User Experience Research of AR Navigation in Walking Mode: A case of Baidu map APP

Zhou Xin(주신),Pan Younghwan(반영환) 대한인간공학회 2018 대한인간공학회 학술대회논문집 Vol.2018 No.11

Objective: The aim of this study is to investigate how people are affected by Navigation map app when they are in real walking environment, and analyze the user experience (UX) differences in different type walk navigation, then summarize the limitations details of AR live navigation in Baidu map app. Finally, find out the methods to improve the user experience of AR live navigation map. Background: Navigation map app has a wide range of users, walking mode is one of the major strong points of this field especially in the era of daily travel. As a case study, we analyze the impact of different walk navigation modes on user experience, mainly focus on Baidu AR live navigation. Method: This paper takes the user"s outdoor walk navigation map as the starting point for short-distance navigation. Using user experiments, assign the task requirements for the research and walk navigation, and record the user"s perception of navigation process and navigation interactive experience for data analysis. Results: Based on the findings of user experience, AR live navigation has provided effective walk navigation solutions for a variety of immersive experiences through groundbreaking technological innovations. Moving from manual to automated, from static content to real-time information, from fingertip to voice, changes the way users interact with maps. Conclusion: Creating an extreme user experience of AR live navigation with differentiated functions and emotional services is worthy of attention in the future.

CDROM 시스템용 디코더 IC 설계 및 제작 ( Design and Fabrication of Decoder IC for CDROM System )

김종선,이동철,주신 대한전자공학회 1993 대한전자공학회 학술대회 Vol.1993 No.1

저용량 항파상풍 면역 글로블린으로 치유된 파상풍 환자 1례

조수형,조남수,김명룡,주신 대한응급의학회 2002 대한응급의학회지 Vol.13 No.1

Tetanus is a neurologic disorder, characterized by increased muscle tone and spasms, that is caused by tetanospasmin, a powerful protein toxin elaborated by Clostridium tetani. In the modern society, tetanus is a rare disease, but it has a high mortality on attack and it's diagnosis depends on the clinical symptoms. The treatment for tetanus is an injection of human tetanus immunoglobulin(HTIG) to neutralize the circulating tetanospasmin, to control breathing, and to provide systemic supportive care. Recently, the 500 unit of HTIG is recommended. We report one case of generalized tetanus that was treated with 500 units of HTIG. The patient was discharged without complications.

수지절단환자의 재접합시 영향을 미치는 인자에 대한 고찰

박광철,조남수,조수형,주신,김성국 대한응급의학회 2002 대한응급의학회지 Vol.13 No.1

Purpose: To find the factors influencing the immediate and late outcome of replantation and revascularization of the digits, we carried out a prospective study from 1998 to 1999 with at least a 1-year followup. Traumatic total and subtotal amputations with inadequate circulation of the digits distal to the metacarpal head were included in the study. Methods: This study was carried out as a prospective study from 1998 to 1999 with at least a 1-year followup. The relationship between age, sex, extent of injury, type of injury, ischemic time, regular smoking, level of injury, and survival rate were analyzed. There were 234 patients with 155 males (254 digits) and 79 females(129 digits). Results: Successful operation was found in 203 patients (86.3%), 314 digits(82%). Although male patients seemed to have poorer survival rates than female, it should be noted that male patients had more severe injuries than female patients. All patients who were regular cigarette smokers were males. Cigarette smoking has been shown to cause cutaneous vasoconstriction, decrease the digital blood flow, and impair the wound healing. These two reasons might explain the lower survival rate in males than in females. Type of injury significantly affected the survival rate. The survival rate was very low in extensive crushed amputation (11.1% survival rate), followed by degloving (21.1% survival rate) and avulsion (64.7% survival rate) amputation. The level of injury also seemed to determine the survival rate as injury at Zone Ⅰ(65% survival rate) resulted in a poor sruvival rate compared to the injury at Zone Ⅱ, Ⅲ, or Ⅳ(92%, 97.6%, or 90.9% survival rate). Ischemic time longer than 8 hours might lessen the survival rate. Conclusion: All patients who successful replantation and revascularization were satisfied with the results even though they had rather poor hand movement. In single digital replantation, no patients needed reamputation, but all preferred to have their finger replanted than udergo a primary amputation. All could accommodate and adapt their injured digits to their work.