Comparison of the ulnar nerve blockade between intertruncal and corner pocket approaches for supraclavicular block: a randomized controlled trial

조유민,Park Jiho,오차현,정우석,송승현,이지은,강한솔,고영권,김윤희,Boo Hwi Hong 대한마취통증의학회 2021 Korean Journal of Anesthesiology Vol.74 No.6

Background: The corner pocket (CP) approach for supraclavicular block (SCB) prevents ulnar nerve (UN) sparing due to needle proximity to the lower trunk. Improved ultrasound resolution has suggested that the intertruncal (IT) approach is a suitable alternative method. We compared efficiency of these two approaches on the UN blockade.Methods: Sixty patients were randomized to undergo SCB using the ultrasound-guided CP or IT approach. For lower trunk blockade, 10 ml of local anesthetic agents (1 : 1 mixture of 0.75% ropivacaine and 1% lidocaine) were injected in the CP (CP approach) or between the lower and middle trunks (IT approach). Additional 15 ml was injected identically to block the middle and upper trunks in both groups. Sensory and motor blockade was evaluated after intervention. Results: Complete sensory blockade (75.9% [22/29] vs. 43.3% [13/30], P = 0.023) and complete motor blockade (82.8% [24/29] vs. 50.0% [15/30], P = 0.017) of the UN at 15 min after SCB were significantly more frequent in the IT than in the CP group. Sensory block onset time of the UN was significantly shorter in the IT compared to the CP group (15.0 [10.0; 15.0] min vs. 20.0 [15.0; 20.0] min; P = 0.012). Conclusions: The IT approach provided a more rapid onset of UN blockade than the CP approach. These results suggest that the IT approach is a suitable alternative to the CP approach and can provide faster surgical readiness.

Regional analgesia techniques for video-assisted thoracic surgery: a frequentist network meta-analysis

조유민,Park Seyeon,오차현,Pak Yujin,Jeong Kuhee,Yun Sangwon,Noh Chan,정우석,김윤희,고영권,홍부휘 대한마취통증의학회 2022 Korean Journal of Anesthesiology Vol.75 No.3

Background: Various regional analgesia techniques are used to reduce postoperative pain in patients undergoing video-assisted thoracic surgery (VATS). This study aimed to determine the relative efficacy of regional analgesic interventions for VATS using a network meta-analysis (NMA). Methods: We searched the Medline, EMBASE, Cochrane Controlled Trial Register, Web of Science, and Google Scholar databases to identify all randomized controlled trials (RCTs) that compared the analgesic effects of the following interventions: control, thoracic paravertebral block (TPVB), erector spinae plane block (ESPB), serratus plane block (SPB), and intercostal nerve block (INB). The primary outcome was opioid consumption during the first 24-h postoperative period. Pain scores were also collected during three different postoperative periods: the early (0–6 h), middle (6–18 h), and late (18–24 h) periods. Results: A total of 21 RCTs (1391 patients) were included. TPVB showed the greatest effect on opioid consumption compared with the control (mean difference [MD] = −13.2 mg; 95% CI [−16.2, −10.1]). In terms of pain scores in the early period, ESPB had the greatest effect compared to control (MD = −1.6; 95% CI [−2.3, −0.9]). In the middle and late periods, pain scores showed that TPVB, ESPB and INB had superior analgesic effects compared to controls, while SPB did not. Conclusions: TPVB had the best analgesic efficacy following VATS, though the analgesic efficacy of ESPBs was comparable. However, further studies are needed to determine the optimal regional analgesia technique to improve postoperative pain control following VATS.

Design and Implementation of a Service Platform that Recommends the Optimal Shortest Distance as a Patrol Route

조유민,장예진,백종호 한국인터넷정보학회 2022 인터넷정보학회논문지 Vol.23 No.1

Recently, interest in living safety and crime prevention is increasing. The reality is that most women have anxiety about social safety and ultimately want a safe return to home. As a result of these issues, the Seoul Metropolitan Government and the National Police Agency are implementing various services to alleviate them. However, there are limitations such as that the service can be used only during a limited time or the process of checking whether the patrol is really completed is complicated. Therefore, in this paper, we propose a service platform that overcomes these limitations and suggests the best and shortest patrol route to the police based on the desired patrol location applied by citizens. It is designed based on the MVC pattern, and the functions are divided for each user. It is hoped that the platform will reduce crime rates and allow citizens to ultimately return home with peace of mind. Also we expect that the police will ablet to find places where they did not know about or need to patrol with more attention through the recommended route of the platform, which will be helpful in their task.

개인맞춤형 건강기능식품 추천용 설문지 개발

전유민,원정현,이승우,홍수연,백유진,조비룡,이형기 대한임상건강증진학회 2022 Korean Journal of Health Promotion Vol.22 No.1

연구배경: 최근 셀프메이케이션 트렌드가 확산되면서 건강기능식품 시장에서 개인맞춤형 서비스의 견고한 성장세가 전망된다. 그러나 개인맞춤형 건강기능식품 추천에 필요한 개인의 생활습관이나 건강상태를 파악하기 위한 표준화된 설문지는 아직 개발된 바 없다. 방법: 본 연구에서는 개인맞춤형 건강기능식품 추천에 필요한 개인의 생활습관 및 건강정보를 평가하기 위한 임상적근거 기반의 설문지를 개발하였다. 먼저 건강기능식품 기능성 영역별로 건강상태에 영향을 미치는 항목을 파악하고자관련 문헌 및 이미 개발된 건강 설문지를 분석하였다. 설문지의 타당도를 높이기 위해 일반적인 건강상태를 파악하는공통 설문지와 건강기능식품 기능성 영역별로 생체조절기능의 저하요인 혹은 저하 증상을 파악하는 상세 설문지로분류하여 문항을 선정하였다. 문항별 답안은 건강 관리가필요할수록 높은 점수가 부여되도록 최저 0점부터 최대 1점까지 점수를 구성하였으며, 이후 전문가 검토를 실시하였다. 결과: 최종 공통 설문지는 ‘기본정보’, ‘과거 병력 및 알레르기’, ‘의약품 투약 및 건강기능식품 복용’, ‘식습관’, ‘생활습관’, ‘기능성 선택’의 6개의 범주 내 총 31개 문항으로 구성됐다. 최종 상세 설문지에는 총 171개의 문항이 포함됐으며, 28개의 건강기능식품 기능성 영역별로 건강 유지·증진에 영향을 미치는 개인 특성을 파악하는 생체조절기능 저하요인 문항과 생체조절기능이 정상적으로 이루어지지 않을때 나타나는 신체적·행동적·정신적 자각 증상의 유무와 정도를 파악하는 생체조절기능 저하 증상 문항으로 구성하였다. 건강기능식품 기능성 영역별 상세 설문지로 도출된 개인 설문 점수를 기반으로 해당 기능성 영역의 건강기능식품이 추천된다. 결론: 본 설문지를 이용하면 개인이 건강기능식품 기능성영역과 관련된 지표들로부터 건강상태를 측정할 수 있다. 아울러 설문지의 임상적 유용성을 높이기 위해 실제 임상에서 사용되는 주관적 평가지표에 기반한 문항으로 구성하였다. 추후 연구를 통해 개발한 설문지의 타당도와 신뢰도를검증하고, 이후 개인맞춤형 건강기능식품 사용자를 대상으로 실제 적용해 본 설문지의 타당도를 재검증하는 작업이필요하다. 이러한 과정을 통해 문항을 보완한다면 개인맞춤형 건강기능식품 추천 서비스에 필요한 표준화된 설문지로써 활용 가능성이 높아지리라 기대한다 Background: This study describes the development of a multi-dimensional questionnaire for the personalized recommendation of health functional foods. Methods: The questionnaire was designed to include two parts: common and detailed. Each question was formulated based on clinical evidence and physician-administered diagnostic tools provided by reputable sources such as government agencies and medical institutions. The common questions were intended to assess overall health status. The detailed questions were organized into 28 categories based on the classification of health functional foods’ health claims by the Ministry of Food and Drug Safety. Each question’s response was evaluated on a scale from 0 to 1. The final score of each category was calculated as the sum of the scores normalized by the number of questions in each category. Two expert physicians in health functional food assessed the content validity of the questionnaire, and the questionnaire was revised accordingly. Results: A total of 31 common questions evaluated overall health conditions based on demographic information, medical history, allergies, prescription medicines, dietary habits, and lifestyle. A question that surveys interest areas was also included to let the responders choose up to three categories for the detailed question part. A total of 173 detailed questions assessed risk factors and symptoms relevant to each healthConclusions: This questionnaire recommends health functional foods by measuring health risks and symptoms, following the classification of health functional foods by the Ministry of Food and Drug Safety. This questionnaire may serve as an evidence-based information collecting tool for a personalized health functional foods recommendation system.

Post-CMP Cleaning에서 PVA 브러시 오염이 세정 효율에 미치는 영향

조한철,유민종,김석주,정해도,Cho, Han-Chul,Yuh, Min-Jong,Kim, Suk-Joo,Jeong, Hae-Do 한국전기전자재료학회 2009 전기전자재료학회논문지 Vol.22 No.2

PVA (polyvinyl alcohol) brush cleaning method is a typical cleaning method for semiconductor cleaning process especially post-CMP cleaning. PVA brush contacts with the wafer surface and abrasive particle, generating the contact rotational torque of the brush, which is the removal mechanism. The brush rotational torque can overcome theoretically the adhesion force generated between the abrasive particle and wafer by zeta potential. However, after CMP (chemical mechanical polishing) process, many particles remained on the wafer because the brush was contaminated in previous post-CMP cleaning step. The abrasive particle on the brush redeposits to the wafer. The level of the brush contamination increased according to the cleaning run time. After cleaning the brush, the level of wafer contamination dramatically decreased. Therefore, the brush cleanliness effect on the cleaning performance and it is important for the brush to be maintained clearly.

이주민의 약국 이용 및 의약품 사용 경험과 인식

조혜민(Hyemin Cho),이유민(Yumin Lee),장선미(Sunmee Jang) 대한약학회 2022 약학회지 Vol.66 No.5

Pharmacy utilization among immigrants in Korea is increasing amid the rapidly rising number of immigrants living in the country. However, few studies have investigated immigrants’ pharmacy utilization. This qualitative study used group interviews to explore immigrants’ experiences and perceptions of drug use and pharmacist services in Korea. The study participants consisted of 30 immigrants who had lived in Incheon and Gyeonggi for at least one year and had used pharmacies. The analysis results are grouped under three themes: “Reasons for visiting and selecting a pharmacy,” “Experience and perception of pharmacy and pharmacists’ services,” and “Experience and perception of taking medicine.” Our study shows that immigrants in Korea face language barriers when visiting pharmacies and struggle with Korea’s prescription-dispensing systems, forcing them to rely on their home country communities. However, immigrants who build a relationship of trust with a certain pharmacy tend to visit it regularly. Therefore, Korean pharmacists must strive to build good relationships with immigrants in order to help them adapt to Korea’s healthcare system.

국내외 교통분석모형 현황 조사 및 주민소개시간 분석 방법론 고찰

이준,유민아,이상규,이상조,이상화 한국도로학회 2021 한국도로학회 학술대회 발표논문 초록집 Vol.2021 No.10

급속 충전 정보를 활용한 버스 차량 충전 전력 분배 기법

장태욱,조유민,신지인,박지숙,백종호 한국인터넷정보학회 2023 인터넷정보학회논문지 Vol.24 No.1

충전기 인프라 시설은 일정한 전력 공급량을 기반으로 설계 및 설치되어 있다. 초기 설계된 충전 시설은 급속히 성장하는 전기 차량의 충전을 한정된 공급 전력량 기반으로 지원한다. 또한, 현재 상용차량은 완전 충전만 가능하며, 급속 균등 충전 방식으로 지원된다. 하지만 상용차량은 정해진 스케줄에 따라 운영되기에 탄력적인 충전이 필수적이다. 본 논문에서는 전기 차량의 급속한 성장 및 증가에 따라 동일 전력량을 기반으로 상용 버스의 고정 스케줄 기반 충전 스케쥴링 및 전력 분배 기법을 활용하여 20%이상 효율 향상된 전력 운영방안을 제시한다. Charger infrastructure facilities are designed and installed based on a constant power supply. Initially designed charging facilities support charging of rapidly growing electric vehicles on a limited power supply basis. In addition, current commercial vehicles can only be fully charged, and are supported by the rapid equalization charging method. However, commercial vehicles operate according to a set schedule, so flexible charging is essential. In this paper, we propose a power operation method with more than 20% efficiency improvement by using a fixed schedule-based charging scheduling and power distribution technique of a commercial bus based on the same amount of power in accordance with the rapid growth and increase of electric vehicles.

Postoperative pain control by ultrasound guided brachial plexus block reduces emergence delirium in pediatric patients

홍부휘,정춘호,조유민,윤수경,김여정,정우석,윤석화,신현대,임채성 대한마취통증의학회 2019 Anesthesia and pain medicine Vol.14 No.3

Background: Pediatric patients awakening from general anesthesia may experience emergence delirium (ED), often due to inadequate pain control. Nerve block completely inhibits innervation of the surgical site and is superior to systemic analgesics. This study assessed whether pain control through nerve block relieves ED after general anesthesia. Methods: Fifty patients aged 2–7 years with humerus condyle fractures were randomly assigned to receive ultrasound guided supraclavicular brachial plexus block (BPB group) or intravenous fentanyl (Opioid group). The primary outcome was score on the pediatric anesthesia emergence delirium (PAED) scale on arrival at the postanesthesia care unit (PACU). Secondary outcomes were severity of agitation and pain in the PACU, the incidence of ED, and postoperative administration of rescue analgesics over 24 h. Results: PAED scale was significantly lower in the BPB group at arrival in the PACU (7.2 ± 4.9 vs. 11.6 ± 3.2; mean difference [95% confidence interval (CI)] = 4.4 [2.0–6.8], P < 0.001) and at all other time points. The rate of ED was significantly lower in the BPB group (36% vs. 72%; relative risk [95% CI] = 0.438 [0.219–0.876], P = 0.023). The BPB group also had significantly lower pain scores and requiring rescue analgesics than Opioid group in the PACU. Conclusions: Ultrasound guided BPB, which is a good option for postoperative acute phase pain control, also contributes to reducing the severity and incidence of ED.

ERP 및 Microstate 분석을 활용한 어순 전형성에 따른 격조사 처리 특성 연구

성지은,오세진,조은하,김경환,송세영,신수현,유민아 한국언어치료학회 2019 한국언어치료학회 학술발표대회 논문집 Vol.2019 No.11