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Streptococcus agalactiae에 의한 인공 슬관절의 화농성 관절염
이상훈 ( Sang Hoon Lee ),이원호 ( Won Ho Lee ),허정원 ( Jeong Won Heo ),최장원 ( Jang Won Choi ),정철민 ( Chul Min Jung ),오원섭 ( Won Sup Oh ),문기원 ( Ki Won Moon ) 대한류마티스학회 2012 대한류마티스학회지 Vol.19 No.5
Recently the incidence of Group B streptococcus (Streptococcus agalactiae) infection has been increased in non- pregnant adults, especially including the elderly and those with underlying diseases. One year ago, a 72-year-old diabetic woman underwent both total knee replacement and then received intermittently acupuncture due to both knee pain. Five days ago, she developed painful swelling on right knee joint. The synovial fluid showed leukocytosis WBC 8,200/mm³), she was diagnosed as prosthetic joint infection, and treated with cefazolin. Her condition was rapidly aggravated despite of antibiotics therapy, open debridement and drainage was performed. But she expired due to sepsis. Both blood and synovial fluid culture yielded S. agalactiae. We reported a case of prosthetic knee joint infection caused by S.
불명열 환자의 원인 질환 및 악성종양 예측인자에 대한 분석
류성열 ( Seong Yeol Ryu ),허상택 ( Sang Taek Heo ),권기태 ( Ki Tae Kwon ),오원섭 ( Won Sup Oh ),백경란 ( Kyong Ran Peck ),송재훈 ( Jae Hoon Song ) 대한내과학회 2006 대한내과학회지 Vol.71 No.3
Background: Fever of unknown origin (FUO) remains a challenging problem despite recent advances in diagnostic modalities. The spectrum of disease causing FUO seems to change with time as well as geographical factors. To evaluate the causes of FUO and identify important trends, a retrospective study was performed. Methods: All adult patients with FUO admitted to the hospital from January 1995 to August 2005 were included. The criteria for diagnosis of FUO were adopted from Durack and Street. Results: A total of 148 patients (mean age, 42.5 years; M:F, 70:78) were enrolled. Of these, 116 (79%) patients were finally diagnosed with one of the following etiologies: infectious disease (37%), connective tissue disorders (16%), malignancy (14%), and miscellaneous disorders (12%) including Kikuchi`s disease, factitious fever, drug-related fever and thyroiditis. Lymphoma (14%) was the most common cause of FUO, followed by tuberculosis (12.8%) and adult-onset Still`s disease (6.8%). An older age (>50 years), thrombocytopenia, lower CRP level and splenomegaly were predictive factors for malignant disease.. However, 31 patients (21%) did not fit a definite diagnosis despite intensive investigation. Moreover, the proportion (26%) of undiagnosed patients during the period of 2000~2005 was significantly higher than that (13%) during the period of 1995~1999 (p<0.044). Conclusions: Although infectious disease remains a major cause of FUO, lymphoma was identified as the most common disease entity. The presence of older age, thrombocytopenia, lower CRP and splenomegaly were predictive of malignant disease and therefore require intensive diagnostic work-up.(Korean J Med 71:302-308, 2006)
허상택 ( Sang Taek Heo ),박미연 ( Mi Yeoun Park ),최영실 ( Young Sill Choi ),오원섭 ( Won Sup Oh ),고관수 ( Kwan Soo Ko ),백경란 ( Kyong Ran Peck ),송재훈 ( Jae Hoon Song ) 대한내과학회 2008 대한내과학회지 Vol.74 No.1
Q열은 국내에서도 드물지 않은 질환으로 생각되며, 조기에 진단하지 못하는 경우에 심내막염이나 혈관염 등의 만성 Q열로 진행하여 사망에 이를 수 있다. 물론 급성 Q열은 비특이적 증상에서 폐렴이나 간염 소견으로 내원하는 환자가 대부분이나 발열의 원인이 확실한 경우 원인균이 밝혀지지 않아도 Q열의 혈청학적 의뢰를 요하는 경우는 흔하지 않다. 하지만 발열을 주소로 내원한 환자들에 대하여 상기 증례들처럼 불명열의 경우 가축이나 이들의 부산물에 접촉력이 있는 경우 뿐만 아니라 특별한 접촉력이나 직업력이 없더라도 불명열로 내원한 환자들의 감별진단에서 Q열의 가능성을 고려하여 혈청학적 검사 및 핵형 분석을 시행해야 하겠다. 향후 국내에서도 사람뿐만 아니라 가축에서의 대규모의 역학적 조사가 추가적으로 필요할 것으로 생각된다. Q fever is an orthozoonotic infection caused by Coxiella burnetii, which was recently reclassified from the order Rickettsials to the order Legionellales. Although Q fever is usually mild and self-limiting, it may be manifested as a serious disease, such as pneumonia, endocarditis, or meningoencephalitis. We describe three separate cases of acute Q fever, which were diagnosed by an indirect micro-immunofluorescence assay (MIFA) test and DNA amplification (PCR). Three adult patients were admitted between December 2004 and August 2006 because of a fever of greater than three weeks duration. Only one patient had contact history with a dog. Of the three patients, two patients had myalgia, headache, skin rash, lymphadenopathy, and hepatosplenomegaly. Although all sets of blood cultures were negative, anti-phase II antibody titers by using an indirect MIFA (IgG 1:512-1,024 and IgM 1:320) were markedly increased in sera from all of three patients. Concomitant PCR assays also demonstrated the presence of OMP com1 for C. burnetii in blood from all of the three patients. Two patients had complete resolution of symptoms and signs with a two-week course of doxycycline, while one patient had spontaneous defervescence. Although the incidence of Q fever is not well known yet in Korea, it should be considered in the differential diagnosis of patients with fever of unknown origin. (Korean J Med 74:100-105, 2008)
주외막단백 유전자 분석을 이용한 Brucella abortus의 동정
이유지 ( Yu Ji Lee ),고관수 ( Kwan Soo Ko ),박미연 ( Mi Yeoun Park ),오원섭 ( Won Sup Oh ),권기태 ( Ki Tae Kwon ),류성열 ( Seong Yeol Ryu ),허상택 ( Sang Taek Heo ),백경란 ( Kyong Ran Peck ),이남용 ( Nam Yong Lee ),송재훈 ( Jae Ho 대한내과학회 2006 대한내과학회지 Vol.71 No.1
Background: As the incidence of bovine brucellosis increases in Korea, the incidence of human brucellosis is also increasing since 2002. However, it is difficult to identify Brucella species by using the conventional methods. Methods: Three strains of gram-negative coccobacilli were isolated from blood specimens of three patients with prolonged fever, which were not identified by using the conventional methods. After extracting total DNA from these isolates, PCR amplification of 16S rRNA and omp2 genes was performed. These sequences secured by PCR assay were compared with known sequences by using GenBank BLAST. Results: DNA sequences were obtained from 3 isolates by using PCR amplification of 16S rRNA. These sequences had more than 99.9% similarities with Brucella species by using GenBank BLAST. In the second place, after comparing DNA sequences secured by PCR amplification of omp2a and omp2b by using GenBank BLAST, these isolates were confirmed as B. abortus. Conclusions: DNA sequence analysis is a rapid and accurate method for identification of uncommon microorganisms, such as Brucella species.(Korean J Med 71:10-16, 2006)
폐암 환자에서 발생한 원발성 피부 Nocardia 감염증
장우익 ( Woo Ik Chang ),김수진 ( Sue Jin Kim ),김영찬 ( Young Chan Kim ),권기태 ( Ki Tae Kwon ),오원섭 ( Won Sup Oh ),백경란 ( Kyong Ran Peck ),송재훈 ( Jae Hoon Song ) 대한내과학회 2007 대한내과학회지 Vol.73 No.3
Nocardiosis is a rare opportunistic bacterial infection. The majority of nocardial infections are acquired through inhalation and smaller numbers of cutaneous nocardiosis are caused by traumatic inoculation of organisms percutaneously. We experienced a patient with lung cancer that developed a primary cutaneous nocardiosis. A 57-year-old man was admitted to the Samsung Medical Center because of a painful swelling lesion of the right foot that developed 3 weeks prior. Three months prior, the patient had been diagnosed with a non-small cell lung cancer, and then underwent palliative bronchial stent insertion, radiation therapy and corticosteroid treatment for an obstructive endobronchial lesion. Incision and drainage was performed as magnetic resonance imaging (MRI) of the foot showed an abscess cavity. Nocardia was isolated from the pus. The antibiotic therapy was changed to oral trimethoprim/sulfamethoxazole (TMP/SMX) treatment. The skin lesion was improving and the patient was discharged 20 days later. TMP/SMX was continued for a total of three months. The patient has been in good health and the skin lesion had completely healed two months after discharge.(Korean J Med 73:342-345, 2007)