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진료 현장에서 소아 마이코플라스마 폐렴을 어떻게 치료할 것인가?
양현종 대한 소아알레르기 호흡기학회 2020 Allergy Asthma & Respiratory Disease Vol.8 No.2
. 마크로라이드 내성 소아 마이코플라스마 폐렴의 최선의 치료는 무엇인가? 매 3–4년 주기의 대유행으로 인한 심각한 보건학적 문제 극복을 위해 우리는 무엇을 어떻게 하여야 하는가? 마크로라이드제로 쉽게 치료되던 마이코플라스마 폐렴 치료는 2000년을 기점으로 치료하기 어려운 질환으로 패러다임의 변화를 맞이하고 있다. 마이코플라스마 폐렴은 소아청소년 연령에서 가장 흔한 세균성폐렴으로, 2000년대 이후 전 세계적인 마크로라이드 내성 마이코플라스마 균주의 출현으로 심각한 보건학적 문제가 되고 있다.1 마이코플라스마 폐렴은 일반적으로 생명을 위협하지 않는 경증 질환이나, 직접적인 기도 상피 손상 또는 이차적인 숙주 면역 반응을 통한 과도한 염증 반응을 통해 0.5%–2.0%에서 심각한 질환으로 진행할 수 있다.2 이러한 기전을 기반으로 국내외 치료지침에서는 마크로라이드제를 일차 치료제로, 마크로라이드제에 내성인 중증 폐렴에 한하여 이차적으로 이차 항생제(플루오로퀴놀론제 또는 테트라사이클린제) 또는 코르티코스테로이드제 치료를 권고하고 있다.3
양현종,홍성철,배종면,Yang, Hyun-Jong,Hong, Seong-Chul,Bae, Jong-Myon 대한예방의학회 2000 Journal of Preventive Medicine and Public Health Vol.33 No.3
Background : Congenital rubella syndrome (CRS) can be controlled by vaccination. Because rubella is typically a childhood disease, occurring predominantly in the 5 to 14 year age group, female school teachers nay be a high-risk population for CRS. Objectives : To determine the prevalence rate of rubella antibodies in school teachers of child bearing age. Methods : The study population consisted of primary, middle and high school teachers of child bearing age. The subjects were aged 35 years and younger, and consented to immunoglobulin (Ig) level testing using the ELISA method. Results : The positive rate of IgG was 77.9% in the study subjects (n=314). Sixty-three teachers (21.4%) were susceptible to rubella infection. Thirty-seven teachers (11.8%) had a history of rubella vaccination. Among the female teachers with no vaccination history, the proportion of negative IgM and IgG was 21.7%, and the proportion of positive IgM was 2.9%. Seventy-nine percent of the study subjects did not know that they should not become pregnant for three months after receiving the rubella vaccine. Conclusion : School teachers of child bearing age should be considered a high risk group for CRS, and should be vaccinated if they are found to be seronegative.
제주도 고등학교 학생의 톡소포자충 항체 양성률 및 감염 위험요인
양현종,배종면,최현식,황환식,오훈규,윤동헌,홍성철,Yang, Hyun-Jong,Bae, Jong-Myon,Choi, Hyun-Sik,Hwang, Hwan-Sik,Oh, Hoon-Kyu,Yun, Dong-Hyun,Hong, Seong-Chul 대한예방의학회 2000 Journal of Preventive Medicine and Public Health Vol.33 No.3
Objectives : To assess the seroprevalence and risk factors of toxoplasmosis in high school students in Cheju Province, Korea. Methods : A total of 4,570 high school students from 18 schools in Cheju Province were investigated for Toxoplasma gondii antibodies(IgG) by enzyme linked immunosorbent assay (ELISA). Risk factors for toxoplasmosis, such as place of residence, type of house, contact with cats and other pets, and rare meat consumption, were examined by questionnaire. Results . The overall antibody positive rate was 5.5% and ranged from 2.6 to 11.5% by school. There was no significant difference between males and females. Statistical analyses of the questionnaire data indicated that the risk factors for seropositivity were: (1) birth place (Cheju/others), (2) place of residence (rural/urban), (3) dietary habits (vegetarian/non vegetarian), (4) eating rare meat, (5) exposure to pets and (6) hepatitis B. Conclusion : We confirmed that the prevalence of the anti-Toxoplasma gondii antibody in a population of high school students in Cheju Province was to the previously reported prevalence.
양현종,김상헌,장안수,김상훈,송우정,김태범,유영,유진호,윤종서,지혜미,서동인,김철우,예영민 대한의사협회 2015 대한의사협회지 Vol.58 No.11
Particulate matter (PM) and specifically, Asian dust (or yellow dust), have been identified as critical causes of health problems. Recent increases in the levels of ambient PM are closely associated with adverse health effects in susceptible populations, such as the elderly, children, and patients with asthma or allergic disorders, and this is cause for recent concern in Korea. The establishment of strategies for the reduction of ambient PM by the government and industry, the development of practical guidelines and recommendations to protect susceptible individuals, and an action program for implementation in the general population, will be essential to minimize adverse health impacts of PM and yellow dust. However, guidelines for the proper prevention and management of PM/yellow dust-induced effects on asthma are unclear. In the present study, we aimed to develop evidence-based practice guidelines and recommendations for pediatric or adult patients with asthma and for general physicians who care for asthmatic patients, in order to provide protection from adverse health effects of PM exposure.
양현종,송대진,심정연 대한소아청소년과학회 2017 Clinical and Experimental Pediatrics (CEP) Vol.60 No.6
Mycoplasma pneumoniae pneumonia (MPP) is one of the most common forms of community-acquired pneumonia in children and adolescents. Outbreaks of MPP occur in 3- to 7-year cycles worldwide; recent epidemics in Korea occurred in 2006–2007, 2011, and 2015–2016. Although MPP is known to be a mild, self-limiting disease with a good response to macrolides, it can also progress into a severe and fulminant disease. Notably, since 2000, the prevalence of macrolide-resistant MPP has rapidly increased, especially in Asian countries, recently reaching up to 80%–90%. Macrolide-resistant Mycoplasma pneumoniae (MRMP) harbors a point mutation in domain V of 23S rRNA with substitutions mainly detected at positions 2063 and 2064 of the sequence. The excessive use of macrolides may contribute to these mutations. MRMP can lead to clinically refractory pneumonia, showing no clinical or radiological response to macrolides, and can progress to severe and complicated pneumonia. Refractory MPP is characterized by an excessive immune response against the pathogen as well as direct injury caused by an increasing bacterial load. A change of antibiotics is recommended to reduce the bacterial load. Tetracyclines or quinolones can be alternatives for treating MRMP. Otherwise, corticosteroid or intravenous immunoglobulin can be added to the treatment regimen as immunomodulators to downregulate an excessive host immune reaction and alleviate immune-mediated pulmonary injury. However, the exact starting time point, dose, or duration of immunomodulators has not been established. This review focuses on the mechanism of resistance acquisition and treatment options for MRMP pneumonia.
Unmet Primary Physicians’ Needs for Allergic Rhinitis Care in Korea
양현종,김영효,이보라,공도윤,김동규,김미애,김봉성,김원영,김정희,박양,박소연,배우용,송기재,양민석,이상민,이영목,이현종,조재홍,지혜미,최정희,유영,고영일 대한천식알레르기학회 2017 Allergy, Asthma & Immunology Research Vol.9 No.3
Allergic rhinitis (AR) is one of the most common chronic allergic respiratory diseases worldwide. Various practical guidelines for AR have been developed and updated to improve the care of AR patients; however, up to 40% patients remain symptomatic. The unmet need for AR care is one of the greatest public health problems in the world. The gaps between guideline and real-world practice, and differences according to the region, culture, and medical environments may be the causes of unmet needs for AR care. Because there is no evidence-based AR practical guideline reflecting the Korean particularity, various needs are increasing. The purpose of the study was to evaluate whether existing guidelines are sufficient for AR patient management in real practice and whether development of regional guidelines to reflect regional differences is needed in Korea. A total of 99 primary physicians comprising internists, pediatricians, and otolaryngologists (n=33 for each) were surveyed by a questionnaire relating to unmet needs for AR care between June 2 and June 16 of 2014. Among 39 question items, participants strongly agreed on 15 items that existing guidelines were highly insufficient and needed new guidelines. However, there was some disagreement according to specialties for another 24 items. In conclusion, the survey results demonstrated that many physicians did not agree with the current AR guideline, and a new guideline reflecting Korean particularity was needed.