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오홍상,김준호,우명렬,Kim Ji Yeon,박철희,Won Hyejin,Lim Seungkwan,Jeong Hyeonju,Ham Sin Young,Kim Eun Jin,신승수,강유민,Yoon Doran,Lee Seung Youp,Song Kyoung-Ho 대한감염학회 2021 Infection and Chemotherapy Vol.53 No.4
In preparation for the surge of coronavirus disease 2019 (COVID-19), it is crucial to allocate medical resources efficiently for distinguishing people who remain asymptomatic until the end of the disease. Between January 27, 2020, and April 21, 2020, 517 COVID-19 cases from 13 healthcare facilities in Gyeonggi province, Korea, were identified out of which the epidemiologic and clinical information of 66 asymptomatic patients at the time of diagnosis were analyzed retrospectively. An exposure-diagnosis interval within 7 days and abnormal aspartate aminotransferase levels were identified as characteristic symptom development in asymptomatic COVID-19 patients. If asymptomatic patients without these characteristics at the time of diagnosis could be differentiated early, more medical resources could be secured for mild or moderate cases in this COVID-19 surge.
대한민국 육군훈련소의 상기도 호흡기 감염증 유행 차단을 위한 환경 및 매개물 소독 연구: 집단 무작위 대조 시험
오홍상 ( Hong Sang Oh ),고재훈 ( Jae-hoon Ko ),조동호 ( Dong Ho Jo ),박규은 ( Qu-eun Park ),권순환 ( Soon-hwan Kwon ),장해봉 ( Haebong Jang ) 국군의무사령부 2022 대한군진의학학술지 Vol.53 No.1
Objective: Human adenovirus type 55 (HAdV-55) is an emerging pathogen causing outbreak of pneumonia in Korean military since 2014. Since the vaccines are developed yet, nonpharmacological interventions (NPIs) including environmental disinfection may play a key role in controlling the outbreak. To evaluate effect of environmental disinfection, we conducted a randomized controlled trial in the Korea Army Training Center. Method: The study population included 60 companies of five regiments. The companies are divided into environmental disinfection company (intervention arm) and control company (control arm). The environmental disinfection company performed disinfection of environmental surfaces using 70% alcohol-based disinfectant and 2,000ppm sodium hypochlorite. The disinfection procedures were performed at the beginning and end of training. The control companies maintained routine hygiene procedures. For primary outcome, the number of patients with fever or acute upper respiratory infection per week is evaluated. Results: Study period included March 11, 2019 to June 9, 2019 and pre-intervention period included January 7, 2019 to April 14, 2019. The average numbers of weekly patient visit were 42.51 ± 9.21 persons in the intervention arm and 45.12 ± 9.38 persons (P-value = 0.281) in the control arm. Compared to the pre-intervention period, the average numbers of weekly patient visit during the intervention period were weakly decreased without statistical significance [2.1 ± 10.4 persons in the intervention arm and 7.45 ± 13.28 persons in the pre-intervention (P-value = 0.091)]. Conclusion: Although there is no statistical significance, fever or acute upper respiratory infections was reduced by intervention (environmental disinfection). Further defined controlled investigations for the effect of NPIs in controlling outbreaks of acute upper respiratory tract infection including HAdV-55 is needed.
Middle East Respiratory Syndrome Coronavirus Superspreading Event Involving 81 Persons, Korea 2015
오명돈,최평균,오홍상,박완범,이상민,박진경,이상국,송정섭,김남중 대한의학회 2015 Journal of Korean medical science Vol.30 No.11
Since the first imported case of Middle East respiratory syndrome coronavirus (MERS-CoV) infection was reported on May 20, 2015 in Korea, there have been 186 laboratoryconfirmed cases of MERS-CoV infection with 36 fatalities. Ninety-seven percent (181/186) of the cases had exposure to the health care facilities. We are reporting a superspreading event that transmitted MERS-CoV to 81 persons at a hospital emergency room (ER) during the Korean outbreak in 2015. The index case was a 35-yr-old man who had vigorous coughing while staying at the ER for 58 hr. As in severe acute respiratory syndrome outbreaks, superspreading events can cause a large outbreak of MERS in healthcare facilities with severe consequences. All healthcare facilities should establish and implement infection prevention and control measure as well as triage policies and procedures for early detection and isolation of suspected MERS-CoV cases.
Parsonage-Turner Syndrome Following Typhoid Vaccination
김정길,김세용,오홍상,조동호 연세대학교의과대학 2021 Yonsei medical journal Vol.62 No.9
Parsonage-Turner syndrome is a rare neurological disease of varying etiology characterized by severe shoulder pain, muscleweakness, and atrophy. Mechanisms are unclear, but are thought to be genetic and immune-mediated reactions. Rarely, Parsonage-Turner syndrome occurs as a side effect of vaccination. A 20-year-old male who worked as a soldier visited the military hospitalbecause of shoulder pain after vaccination against typhoid and was diagnosed with Parsonage-Turner syndrome based onelectromyography and joint magnetic resonance imaging. Pain was controlled with a nerve block. Intravenous immunoglobulinwas administered for improvement of neurologic symptoms. This case suggests that Parsonage-Turner syndrome should be consideredas a side effect of vaccination. To the best of our knowledge, this is the first report of Parsonage-Turner syndrome followingvaccination in Korea.
서지연,이동호,조유리,이동현,오홍상,조현진,신철민,이상협,박영수,황진혁,김진욱,정숙향,김나영,정현채,송인성 대한내과학회 2011 대한내과학회 추계학술발표논문집 Vol.2011 No.1
Background: Although some studies have shown improvement of precancerous lesions and a decrease of metachronous gastric cancer after eradication of Helicobacter pylori, this is still controversial. We conducted this study to prove the effect of eradication after endoscopic resection of early gastric cancer. Materials and Methods: Materials and Methods: We identified 129 patients with early gastric cancer and who had their H. pylori eradicated after undergoing endoscopic resection between September, 2003 and September, 2010. Patients with positive or unkown resection margins were excluded. The success of eradication was verified by the campylobacter-like organism test, the urea breath test and the histology. The endoscopic biopsy specimens were reviewed on the basis of the Updated Sydney System before and after eradication. Relapse of gastric cancer was assessed from the medical records. Results: Results: Among the 74 study patients, 61 patients (82.4%) were successively eradicated. The mean time after endoscopic resection to follow-up was 27.2±18.7 months (mean±standard deviation). H. pylori colonization (p<0.001), neutrophil infiltration (p<0.001), mononuclear cell infiltration (p<0.001) and intestinal metaplasia (p=0.03) decreased after eradication; however, gastric atrophy did not significantly decrease (n=33, p=0.561). For all the patients, metachronous gastric cancer showed a decrease in the eradicated group, but this did not reach statistical significance (OR: 0.36, 95% CI: 0.07-1.70, p=0.17). However, when restricted to those patients who were followed up more than 18 months, metachronous gastric cancer was significantly decreased in the eradicated group (OR: 0.108, 95% CI: 0.016-0.726, p=0.04). Conclusions: Eradication of H. pylori decreased the precancerous lesions, and when following up for more than 18 months, eradication also reduced the metachronous gastric cancer. We suggest eradicating H. pylori after endoscopic resection of gastric cancer.
Clinical Progression and Cytokine Profiles of Middle East Respiratory Syndrome Coronavirus Infection
김의석,최평균,박완범,오홍상,김은정,남은영,나선희,김문석,송경호,방지환,박상원,김홍빈,김남중,오명돈 대한의학회 2016 Journal of Korean medical science Vol.31 No.11
Clinical progression over time and cytokine profiles have not been well defined in patients with Middle East respiratory syndrome coronavirus (MERS-CoV) infection. We included 17 patients with laboratory-confirmed MERS-CoV during the 2015 outbreak in Korea. Clinical and laboratory parameters were collected prospectively. Serum cytokine and chemokine levels in serial serum samples were measured using enzyme-linked immunosorbent assay. All patients presented with fever. The median time to defervescence was 18 days. Nine patients required oxygen supplementation and classified into severe group. In the severe group, chest infiltrates suddenly began to worsen around day 7 of illness, and dyspnea developed at the end of the first week and became apparent in the second week. Median time from symptom onset to oxygen supplementation was 8 days. The severe group had higher neutrophil counts during week 1 than the mild group (4,500 vs. 2,200/µL, P = 0.026). In the second week of illness, the severe group had higher serum levels of IL-6 (54 vs. 4 pg/mL, P = 0.006) and CXCL-10 (2,642 vs. 382 pg/mL, P < 0.001). IFN-α response was not observed in mild cases. Our data shows that clinical condition may suddenly deteriorate around 7 days of illness and the serum levels of IL-6 and CXCL-10 was significantly elevated in MERS-CoV patients who developed severe diseases.
김형준,허준녕,한덕재,오홍상 연세대학교의과대학 2022 Yonsei medical journal Vol.63 No.5
Purpose: We previously developed learning models for predicting the need for intensive care and oxygen among patients withcoronavirus disease (COVID-19). Here, we aimed to prospectively validate the accuracy of these models. Materials and Methods: Probabilities of the need for intensive care [intensive care unit (ICU) score] and oxygen (oxygen score)were calculated from information provided by hospitalized COVID-19 patients (n=44) via a web-based application. The performanceof baseline scores to predict 30-day outcomes was assessed. Results: Among 44 patients, 5 and 15 patients needed intensive care and oxygen, respectively. The area under the curve of ICUscore and oxygen score to predict 30-day outcomes were 0.774 [95% confidence interval (CI): 0.614–0.934] and 0.728 (95% CI:0.559–0.898), respectively. The ICU scores of patients needing intensive care increased daily by 0.71 points (95% CI: 0.20–1.22) afterhospitalization and by 0.85 points (95% CI: 0.36–1.35) after symptom onset, which were significantly different from those in individualsnot needing intensive care (p=0.002 and <0.001, respectively). Trends in daily oxygen scores overall were not markedlydifferent; however, when the scores were evaluated within <7 days after symptom onset, the patients needing oxygen showed ahigher daily increase in oxygen scores [1.81 (95% CI: 0.48–3.14) vs. -0.28 (95% CI: 1.00–0.43), p=0.007]. Conclusion: Our machine learning models showed good performance for predicting the outcomes of COVID-19 patients andcould thus be useful for patient triage and monitoring.
의무부대 유형별 치무전개 Set 구성 기준 수립을 위한 연구
노경호 ( Roh Kyungho ),강문석 ( Kang Moonseok ),오홍상 ( Oh Hongsang ),금경림 ( Geum Kyungrim ),조준 ( Cho Joon ) 국군의무사령부 2018 대한군진의학학술지 Vol.49 No.1
Objectives; The dental mobile bus was introduced for the first time in 1999 with the aim of improving the oral health of the soldiers and the dental teatment capacity during war time. However, t is not adequately repaired or replaced after eqipment life year due to various reasons such as cost and lack of person. The purpose of this study is to sxamine the operation status of dental mobile bus and to present proper dental deploymens for each division type through the results and questionnaires. Methods; The operation status of dental equipments was reported through dental affair reports, questionnaire, and field trip. In order to present the appropriate dental deploy equipment for each type of division, questionnaires were administered to dental surgeon and chief of medical battalion. Results ; The operational status of dental mobile bus in the army for past three years is 14.2 times per year and 142.4 cases per year. The first reason of the difficulties in operation, the surgeon selected the aged eqiupment, and chief of medical battalion choose the narrow space of dental mobile. Conclusions ; It is necessary to improve the dental deploy eqipments considering the mission of the division, the economic cost, and troop reduction.