• Tuberculosis and Respiratory Diseases
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• 제74권3호
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• pp.124-128
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• 2013

Pleural effusion is a rare complication in non-tuberculous mycobacterial infection. We report a case of Mycobacterium intracellulare pleuritis with idiopathic pulmonary fibrosis in a 69-year-old man presenting with dyspnea. Pleural effusion revealed lymphocyte dominant exudate. M. intracellulare was identified using a polymerase chain reaction-restriction fragment length polymorphism method and liquid cultures of pleural effusion and pleural biopsy. After combination therapy for M. intracellulare pulmonary disease, the patient was clinically well at a 1-month follow-up.

• Tuberculosis and Respiratory Diseases
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• 제85권4호
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• pp.320-331
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• 2022

Coronavirus disease 2019 (COVID-19) has become a major health burden worldwide, with over 450 million confirmed cases and 6 million deaths. Although the acute phase of COVID-19 management has been established, there is still a long way to go to evaluate the long-term clinical course or manage complications due to the relatively short outbreak of the virus. Pulmonary fibrosis is one of the most common respiratory complications associated with COVID-19. Scarring throughout the lungs after viral or bacterial pulmonary infection have been commonly observed, but the prevalence of post-COVID-19 pulmonary fibrosis is rapidly increasing. However, there is limited information available about post-COVID-19 pulmonary fibrosis, and there is also a lack of consensus on what condition should be defined as post-COVID-19 pulmonary fibrosis. During a relatively short follow-up period of approximately 1 year, lesions considered related to pulmonary fibrosis often showed gradual improvement; therefore, it is questionable at what time point fibrosis should be evaluated. In this review, we investigated the epidemiology, risk factors, pathogenesis, and management of post-COVID-19 pulmonary fibrosis.

• Tuberculosis and Respiratory Diseases
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• 제45권4호
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• pp.870-875
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• 1998

방선균과 아스페르질루스종 각각은 비교적 흔한 질환이나 폐의 동일 병변에서 방선균과 아스페르질루스가 혼합 감염된 예는 보고 된 바가 없는데 최근 객혈로 내원한 62세 여자 환자의 고립성 폐결절에서 방선균파 아스페르질루스의 혼합 감염을 확인하였기에 보고 하는 바이다.

• Tuberculosis and Respiratory Diseases
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• 제82권4호
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• pp.306-310
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• 2019

Background: Tuberculosis (TB) is increasing in immigrants. We aimed to investigate the current status of latent tuberculosis infection (LTBI) treatment for North Korean Refugees (NKR) compared to South Koreans Contacts (SKC). Methods: TB close contacts in a closed facility of SKC and NKR who underwent LTBI screening in a settlement support center for NKR were analyzed retrospectively. Results: Among tuberculin skin test (TST) ${\geq}10mm$ (n=298) reactors, the males accounted for 72.2% in SKC (n=126) and 19.5% in NKR (n=172) (p<0.01). The mean age was higher in South Korea ($42.8{\pm}9.9years$ vs. $35.4{\pm}10.0years$, p<0.01). Additionally, the mean TST size was significantly bigger in NKR ($17.39{\pm}3.9mm$ vs. $16.57{\pm}4.2mm$, p=0.03). The LTBI treatments were initiated for all screened NKR, and LTBI completion rate was only 68.0%. However, in NKR, LTBI treatment completion rate was significantly increased by shorter 4R regimen (odds ratio [OR], 9.296; 95% confidence interval [CI], 4.159-20.774; p<0.01) and male (OR, 3.447; 95% CI, 1.191-9.974; p=0.02). Conclusion: LTBI treatment compliance must be improved in NKR with a shorter regimen. In addition, a larger study regarding a focus on LTBI with easy access to related data for NKR should be conducted.

• Journal of Chest Surgery
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• 제24권11호
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• pp.1149-1153
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• 1991

A modified procedure for the operative management of the corrected transposition of the great arteries with ventricular septal defect and pulmonary stenosis or atresia was performed in 4 patients. (age ; 18 months-9 years). The operation consists of a venous switch procedure (Senning), intraventricular baffling directing the blood flow from the morphologic left ventricle into the aorta via ventricular septal defect through the right ventriculotomy, and insertion of valved conduit between the morphologic right ventricle and the pulmonary artery. All the four patients had large non-restrictive ventriular septal defects and no evidence of significant mitral valve regurgitation. Both ventricles were well-developed. Three cases had pulmonary atresia, and the remainder had severe subpulmonic stenosis. Postperatively, all patients showed no findings of systemic or pulmonary venous obstruction withnormal sinus rhythm. One patient died of sepsis due to infection by Methicillin-resistant S. aureus on the thirteenth postoperative day. Follow-up is done on the survivors, and all of them are dong well with regular sinus rhythm, with their functional class I or II at 2 to 8 months after the operation.

• Journal of Chest Surgery
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• 제28권4호
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• pp.419-422
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• 1995

Pulmonary actinomycosis is a chronic pulmonary infection characterized by suppuration, abscess formation, and dense scarring. The causative agent, Actinomyces israelii, is a gram-positive, microaerophilic bacterium that resemble fungi. We recently treated two cases of pulmonary actinomycosis. A patient was underwent right lower lobectomy under the impression of bronchiectasis. Pulmonary actinomycosis was diagnosed of postoperatively. He was medicated with high-dose penicillin parenterally. The other patient was also undergone right lower lobectomy under the impression of broncholithiasis and received parenteral penicillin and oral roxythromycin. There was no recurrence or development of empyema. The purpose of this paper is to review of our experience and to enhance consideration of pulmonary actinomycosis.

• Journal of Chest Surgery
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• 제18권3호
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• pp.517-528
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• 1985

Pulmonary function studies today are generally accepted as an integral part of the evaluation of poor-risk patients who are to have pulmonary surgery. The effect of various pulmonary surgery on lung function was investigated in 54 patients in whom comprehensive lung function test were performed before and between 2 months and 14 months after operation at the Department of Thoracic Surgery, Seoul National University Hospital. According to the result of analysis, the effect of pulmonary resection on forced flow rate was keeping with the change of lung volume, and the preoperative level of ventilatory function plays a major role in determining postoperative loss of functioning lung. Although all measures of expiratory flow [FVC, FEV1, FEFO.2-1.2, MEF50, FEF25-75] have the same percentage of reproducibility, but FEV1 shows most sensitive, reliable linear correlation with the functioning pulmonary tissue loss than other parameters. The linear regression lines derived from the correlation between preoperative [X] and postoperative [Y] FEV1 on various surgical procedures were as follows: 1. Y = 0.57X 0.03. in pneumonectomy group of lung cancer[r=0.84]. 2. Y = 0.56X + 0.33. in lobectomy group of lung cancer[r=0.79]. 3. Y = 0.69X + 0.25. in lobectomy group of pulmonary infection[r=0.91].

• Journal of Chest Surgery
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• 제33권3호
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• pp.245-251
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• 2000

Backround: Pulmonary aspergilloma is a potential life-threatening disease resulting from massive hemoptysis. Pulmonary aspergilloma has been treated surgically for many years, however, it has also had higher risk of mortality and complication rate. The purpose of this study is to analyze the operative methods and the types of complications. Material and Method: Sixty patients who underwent surgical resection for pulmonary their medical reconrds. Result: The mean age was 46.3$\pm$13.4 years(range 20 to 76 years). The most common clinical presentation was hemoptysis which occurred in 48 patients(80%). Pulmonary tuberculosis was the most common pre-existing disease, occurri9ng in 28 patients(46.7%). The other associated lung diseases were bronchiectasis(n=11), silicosis(n=2), and chronic pnumonia(n=1). Operative proceudres wer lobectomy in 35 patients, pneumonectomy in 6, segmentectomy in 5, lobectomy and thoracoplasty in 3, segmentectomy and thoracopasty in 1, and cavernostomy in 10. The operative mortality was 6%(n=3) in lung resection patients but 0% in cavernostomy patients. The most common complications were prolonged air leakage, wound infection and postoperative bleeding. Conclusion: In most cases of pulmonary aspergilloma surgical resectin remains the only effective therapy. However, cavernostomy may be more effective for pulmonary aspergilloma patients with decreased pulmonary functions and for patients with high risk for lung resection.

• Journal of Yeungnam Medical Science
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• 제34권2호
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• pp.231-237
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• 2017

Background: Deep vein thrombosis (DVT) and pulmonary embolism (PE) are conditions with significant morbidity and mortality. Proximal DVT has a significant association with PE and possible fatal outcomes. Traditionally, PE is subdivided into symptomatic PE and asymptomatic PE, which have different treatments, preventions and prognoses. The growing utilization of computed tomography pulmonary angiography has led to increased detection of PE in DVT patients. This study examined the clinical characteristics and compared symptomatic PE and asymptomatic PE following proximal DVT. Methods: The medical records of 258 DVT inpatients from July, 2012 to June, 2015 were reviewed retrospectively. After excluding the patients who did not performed PE evaluation and were not diagnosed with PE, 95 patients diagnosed with PE following proximal DVT were enrolled in this study. They were divided into the symptomatic PE group and asymptomatic PE group. Results: The body weight, body mass index, thrombus size, thrombus length and location were similar in the two groups. The symptomatic PE following proximal DVT group showed an older age, higher incidence of emergency department access (85.0% vs. 38.7%, p<0.001) and preceding infection (25.0% vs. 1.3%, p<0.001) as well as a higher incidence of immobilization (45.0% vs 13.3%, p=0.016). In the multivariate logistic regression study, preceding infection and emergency department access showed significant association with symptomatic PE. Conclusion: In proximal DVT inpatients, symptomatic PE was associated with emergency department access and preceding infection. The possibility of a symptomatic PE event should be considered in proximal DVT patients, especially those who were admitted through the emergency department and had preceding infection.

• Tuberculosis and Respiratory Diseases
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• 제52권2호
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• pp.107-116
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• 2002

연구배경 : Matrix metalloproteinase(MMP)는 세포외 기질중 기저막의 용해 및 혈관 생성에 관여하여 전이를 일으키며, 이중 MMP-9 과 STR-3 가 폐암에서 발현된 경우 예후가 나쁘며 림프절 전이와 연관이 있다는 보고가 있다. 말초혈액에서 MMP-9와 STR-3의 발현이 폐암의 진단 표지자로 사용될 수 있는 지를 평가하고 자하였다. 방 법 : 44명의 폐암 환자, 19명의 감염성 폐질환 환자, 33명의 정상인의 혈액을 채취하여 단핵구를 분리하여 MMP-9과 STR-3의 RT-PCR을 시행하였고, 혈청내 MMP-9 단백질을 ELISA로 측정하여 비교 분석하였다. 결 과 : MMP-9은 폐암환자 (26/44, 59.1%)와 정상 대조군(23/33, 69.7%)에 비해 폐감염환자 (18/19, 94.7%)에서 유의하게 높게 발현되며(p=0.018), STR-3은 폐감염환자(8/19, 42.1%)와 정상 대조군 (20/33, 60.6%)에 비해 폐암환자(37/44, 84.1%)에서 유의하게 높게 발현되었다(p=0.003). MMP-9는 폐암 환자들 사이에서 림프절 전이가 있는 군(17/24, 70.8%)에서 없는 군 (3/13, 23.1%)보다 유의하게 높게 발현되었으며(p=0.005), 그 이외에 T 병기, 원격전이 유무, 종양의 병리소견, 연령, 성별에 따른 MMP-9과 STR-3 mRNA의 발현차이는 관찰되지 않았다. 세 군간 혈청내 MMP-9 농도의 차이는 관찰되지 않았다. 결 론 : RT-PCR을 이용한 말초혈액 단핵세포에서의 STR-3 mRNA 발현 측정은 폐암의 진단 표지자로 사용될 가능성이 있을 것으로 사료된다.