연구배경: 본 연구를 통해 2005년도 ATS/ERS 폐활량검사 지침에서 제시한 재현성 기준을 한국 성인들에게 적용할 수 있는 지와, 한국 성인들의 폐활량 검사 시 재현성에 영향을 미치는 요인들을 알아보고자 하였다. 방 법: 국민건강영양조사, COPD 코호트, 지역사회 코호트로부터 얻은 성인 4,663명의 폐활량검사 결과를 이용하여 dFVC 및 dFEV1를 계산하여 분포를 알아보고, 1994년도 ATS 지침 및 2005년도 ATS/ERS 지침을 만족하는 검사의 비율을 비교하였다. 다중회귀분석을 통해 개인적 특성 및 재현성 기준의 변화가 재현성에 영향을 미치는가를 알아보았다. 결 과: 폐활량검사를 시행한 사람들 중 95% 이상이 150 ml 이내의 재현성 기준을 만족시켰다. 1994년도 ATS 지침에 따라 검사를 시행한 경우 재현성을 만족하지 않는 경우가 증가하였다. 다중회귀분석 결과 재현성에 영향을 주는 요인들은 신장, 연령, 체중, 폐쇄성폐질환 여부, 재현성 기준의 변화 등이었으나 재현성에 영향을 미치는 정도는 매우 작았다(0.5∼3.0%).
Background: The objective of this study was to evaluate the clinical applicability of the repeatability criteria recommended by the American Thoracic Society/European Respiratory Society (ATS/ERS) spirometry guidelines and to determine which factors affect the repeatability of spirometry in Korean adults. Methods: We reviewed the spirometry data of 4,663 Korean adults from the Korean National Health and Nutritional Examination Survey (KNHANES) Chronic Obstructive Pulmonary Disease Cohort (COPD cohort) and the Community-based Cohort Study VI-Fishing village/Islands (community cohort). We measured the anthropometric factors and differences between the highest and second-highest FVC (dFVC) and FEV1 (dFEV1) from prebronchodilator spirometry. Analyses included the distribution of dFVC and dFEV1, comparison of the values meeting the 1994 ATS repeatability criteria with the values meeting the 2005 ATS/ERS repeatability criteria, and the performance of linear regression for evaluating the influence of subject characteristics and the change of criteria on the spirometric variability. Results: About 95% of subjects were able to reproduce FVC and FEV1 within 150 ml. The KNHANES based on the 1994 ATS guidelines showed poorer repeatability than the COPD cohort and community cohort based on the 2005 ATS/ERS guidelines. Demographic and anthropometric factors had little effect on repeatability, explaining only 0.5 to 3%. Conclusion: We conclude that the new spirometry repeatability criteria recommended by the 2005 ATS/ERS guidelines is also applicable to Korean adults. The repeatability of spirometry depends little on individual characteristics when an experienced technician performs testing. Therefore, we suggest that sustained efforts for public awareness of new repeatability criteria, quality control of spirograms, and education of personnel are needed for reliable spirometric results. (Tuberc Respir Dis 2007;63:405-411)
연구배경: 폐결핵의 발생은 연령이 증가함에 따라 그 빈도가 증가하는 것으로 알려져 있어 기관지 결핵의 발생률도 고령에서 증가할 것으로 생각된다. 본 연구는 70세 이상의 고령에서 발생한 기관지 결핵의 임상적 특징을 알아보고자 하였다. 방 법: 2003년 3월부터 2006년 6월까지 경상대학교병원에서 기관지 결핵으로 진단 받은 74명의 환자(남：여=12：62, 평균나이: 64.6±16.2세)를 대상으로 70세 이상 환자군과 70세 미만 환자군으로 나누어 임상적 특징을 후향적으로 조사하였다. 결 과: 1) 70세 이상의 환자는 41명(55%), 70세 미만의 환자는 33명(45%)이었다. 2) 양군 모두에서 가장 흔한 증상은 기침이었으며, 호흡곤란의 빈도는 70세 이상 환자군이 70세 미만 환자군보다 높았다(31.7% vs. 12.1%). 3) 기관지내시경 소견상 70세 이상의 환자군이 70세 미만의 환자군보다 건락성 괴사형의 비율은 낮았고(39% vs. 66.7%), 부종 충혈형은 상대적으로 높았다(53.7% vs. 27.2%)(p＜0.05). 4) 병변의 위치는 기관 또는 주 기관지를 침범하는 경우가 70세 이상의 환자군이 70세 미만의 환자군보다 유의하게 많았다(9.7% vs. 30.3%). 5) 객담 및 기관지 세척액의 항산균 도말 양성률과 배양 양성률은 유의한 차이가 없었다.
Background: The possibility of developing pulmonary tuberculosis usually increases with increasing age. Therefore, the incidence of endobronchial tuberculosis in older people may increase. We evaluated the clinical characteristics in patients with endobronchial tuberculosis above the age of 70 years. Methods: We enrolled 74 patients (12 males and 62 females; mean age 64.6±16.2 years) that were diagnosed with endobronchial tuberculosis from March 2003 to July 2006 at Gyeongsang University Hospital. We retrospectively evaluated the clinical characteristics of endobronchial tuberculosis for patients 70 years or older (older group) and for patients below the age of 70 years (younger group). Results: The number of patients in the older group was 41 (55%). Cough was the most common symptom in the two groups of patients and dyspnea on exertion was more common in the older group of patients than in the younger group of patients (31.7% vs. 12.1%). The actively caesating type of disease was more common in the younger group of patients than in the older group of patients (66.7% vs. 39%). The edematous type of disease was more common in the older group of patients than in the younger group of patients (53.7% vs. 27.2%) (p＜0.05). Tracheal and main bronchial involvement of lesions were more common for the younger group of patients than for the older group of patients (30.3% vs. 9.7%) (p＜0.05). Conclusion: Endobronchial tuberculosis was commonly observed in patients older than 70 years and this group of patients had some clinical characteristics that were different from the younger group of patients. (Tuberc Respir Dis 2007;63:412-416)
연구배경: 일차 항결핵제 치료 5개월 이후 배양 음전되었으나 도말 양성을 보이는 폐결핵 환자들의 임상적 특성과 치료 후 경과에 대하여 알아보고자 하였다.방 법: 2002년 1월 1일부터 2003년 12월 31일까지 일개 결핵 전문 병원에 입원한 환자 중 일차 항결핵제로 치료를 종결하였고 약제감수성 검사상 일차 항결핵제에 모두 감성이거나 리팜핀을 제외한 단일 약제 내성이면서 추적관찰이 되었던 환자를 대상으로 임상적 특성과 재발여부와 이에 관련한 위험인자를 후향적으로 분석하였다.결 과: 대상 환자는 60명이었고 모두 치료에 성공하였다. 객담 도말 검사상 음전은 평균 8.3±2.3개월이었고, 객담 배양 검사상 음전은 평균 2.0±0.8개월이었다. 당뇨는 14명(23%), 초치료는 46명(77%), 약제감수성 검사상 일차 항결핵제에 모두 감성인 경우가 37명(62%), 흉부방사선 사진상 중증인 경우가 49명(81%)이었다. 재발률은 치료 1년 후 3.8%, 2년 후 10%, 5년 후 25.8%이었고 나이, 성별, 당뇨, 치료 2개월째의 배양검사 결과, 과거 치료력, 흉부방사선 사진 소견, 치료기간에 따라 재발률의 차이는 통계적으로 유의하지 않았다.
Background: It is not known with certainty whether patients with persistently positive sputum smear results who have also had negative sputum culture results require prolongation of treatment for tuberculosis in order to avoid an increased risk of eventual relapse. The purpose of the present study was to retrospectively describe the treatment characteristics and evaluate the appropriate duration of treatment in these patients. Methods: Sixty of 69 patients with sputum smear positive and culture negative tests at 5 months after first line anti-tuberculous chemotherapy from 2002 to 2003 were retrospectively analyzed. Exclusion criteria included incomplete treatment or resistance to rifampicin or two additional antibiotics, as determined by a drug susceptibility test (DST). Results: Smear conversion of the study subjects was observed after 8.3±2.3 months treatment, and the patients were culture negative after 2.0±0.8 months. The relapse rates of the study subjects were 3.8, 10.0, and 25.8% after 1, 2, and 5 years of anti-tuberculosis chemotherapy, respectively. The relapse rates were not significantly affected by a series of risk factors such as age, sex, presence of diabetes, a sputum culture examination after 2 months treatment, previous treatment history, chest radiograph, and duration of the treatment (p＞0.05). Conclusion: Regimen change is not required for patients with persistent smear positive but culture negative tests in the fifth month for first line antituberculous treatment. However, a further study will be needed to clarify the high relapse rate in this specific group of patients. (Tuberc Respir Dis 2007;63:417-422)
연구배경: 급성폐손상과 급성호흡곤란증후군 대상자에서 폐포모집술의 적절한 방법에 대해서는 정해진 것이 없다. 이 연구를 통해 폐포모집술들 중 압력조절환기법을 이용한 폐포모집술의 효과와 안정성을 확인하고자 하였다.방 법: 급성폐손상 및 급성호흡곤란증후군에 해당하는 대상자들을 대상으로 압력조절환기 방식에서 30 cmH2O의 흡입압력과 20 cmH2O의 호기말양압으로 2분 동안 폐포모집술을 시행하였다. 동맥혈 산소분압, 정맥혈 산소포화도, 혈압과 맥박, 중심정맥압, 폐탄성, 호기말양압, 흉부 X-ray를 시술 전ㆍ후로 확인하였다.결 과: 16명의 대상자들 중에서, 3명은 폐외 급성폐손상 및 급성호흡곤란증후군 대상자였고 나머지 13명은 폐내 급성폐손상 및 급성호흡곤란증후군 대상자였다. 평균 나이는 61.0±11.8세였고, 평균 APACHE II score는 21.6± 11.9이었으며, SAPS score는 44.6±14이었다. 폐포모집술 시행 전, 평균 호기말양압은 11.3±1.5 mmHg이었으며 평균 동맥혈산소분압/흡입산소분율은 130.3±60.2이었다. 폐포모집술 시행 20분 후, 동맥혈산소분압/흡입산소분율의 비를 측정하여 50% 이상 상승한 경우를 반응군으로 50% 이하로 상승하거나 감소한 경우를 비반응군으로 분류하였다. 8명의 대상자들은 반응군이었고 8명의 대상자들은 비반응군이었다. 두 군간의 인구학적인 특성과 기계호흡의 패턴, APACHE II score, SAPS score, 동맥혈산소분압/흡입산소분율과 혈역동학적 특성 사이에는 차이가 없었다. 폐포모집술 이후, 동맥혈산소분압/흡입산소분율의 비는 상승하였다(p＜0.001). 그 최대치는 폐포모집술 이후 60분에서 관찰되었다. 동맥혈 이산화탄소분압은 상승하는 경향을 보였다(p=0.05). 폐포모집술 전ㆍ후의 평균동맥압의 차이는 없었다(p=0.08). 기흉 등의 압력 손상에 의한 합병증은 없었으며, 단 한 예에서만 혈압 저하로 인해 폐포모집술을 중단하였으나 수액 공급 후 바로 회복되었다.
Background: Alveolar recruitment (RM) is one of the primary goals of respiratory care for an acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). The purposes of alveolar recruitment are an improvement in pulmonary gas exchange and the protection of atelectrauma. This study examined the effect and safety of the alveolar RM using pressure control ventilation (PCV) in early ALI and ARDS patients. Methods: Sixteen patients with early ALI and ARDS who underwent alveolar RM using PCV were enrolled in this study. The patients' data were recorded at the baseline, and 20 minutes, and 60 minutes after alveolar RM, and on the next day after the maneuver. Alveolar RM was performed with an inspiratory pressure of 30 cmH2O and a PEEP of 20 cmH2O in a 2-minute PCV mode. The venous O2 saturation, central venous pressure, blood pressure, pulse rate, PaO2/FiO2 ratio, PEEP, and chest X-ray findings were obtained before and after alveolar RM. Results: Of the 16 patients, 3 had extra-pulmonary ALI/ARDS and the remaining 13 had pulmonary ALI/ARDS. The mean PEEP was 11.3 mmHg, and the mean PaO2/FiO2 ratio was 130.3 before RM. The PaO2/FiO2 ratio increased by 45% after alveolar RM. The PaO2/FiO2 ratio reached a peak 60 minutes after alveolar RM. The PaCO2 increased by 51.9 mmHg after alveolar RM. The mean blood pressure was not affected by alveolar RM. There were no complications due to pressure injuries such as a pneumothorax, pneumomediastinum, and subcutaneous emphysema. Conclusion: In this study, alveolar RM using PCV improved the level of oxygenation in patients with an acute lung injury and acute respiratory distress syndrome. Moreover, there were no significant complications due to hemodynamic changes and pressure injuries. Therefore, alveolar RM using PCV can be applied easily and safely in clinical practice with lung protective strategy in early ALI and ARDS patients. (Tuberc Respir Dis 2007;63:423-429)
저자들은 71세 여자환자가 대량객혈을 주소로 내원하여 폐동맥과 기관지의 누공을 확인한 증례를 경험하였기에 문헌고찰과 함께 보고하는 바이다.
Massive and untreated hemoptysis is associated with a ＞50% mortality rate. Since bleeding has a bronchial arterial origin in most patients, bronchial artery embolization (BAE) has become an accepted treatment in massive hemoptysis. The possibility of bleeding from pulmonary artery should be considered in patients in whom the bleeding focus cannot be found by Bronchial angiogram. Indeed, the bleeding occurs from a pulmonary artery in approximately 10% of patients with massive hemoptysis. The most common causes of bleeding from the pulmonary artery are pulmonary artery rupture associated with a Swan-Ganz catheter, infectious diseases and vasculitis. We report a rare case of a fistula between the right upper lobar pulmonary artery and the right upper lobar bronchus in a 71-year-old woman who presented with massive hemoptysis. (Tuberc Respir Dis 2007;63: 430-434)
PZA에 의한 독성 간염은 약 2% 정도 보고되고 있으나 전격성 간염으로 진행하여 사망하는 경우는 드물게 보고되고 있다. 본 증례에서는 항결핵제에 의해 중증 독성 간염을 보였다가 회복된 후 저용량의 PZA을 재투여 하고 전격성 간염으로 진행하는 양상을 보였다. 이번 사례를 통해 저용량의 PZA를 투약시 전격성 간부전으로 진행하는 경우를 경험했고 항결핵제 투여시 면밀한 관찰이 필요하고 항결핵 약제 투여시 신중을 기울여야겠다.
Standard antituberculous therapy, including isoniazid (INH), rifampin, ethambutol, and pyrazinamide (PZA), is widely used to treat active tuberculosis. The most important side effect is hepatotoxicity. In a standard four-drug regimen, PZA was the most common cause of drug-induced hepatitis and was dose-related. The incidence of drug-induced hepatitis is high at doses of 40∼70 mg/kg per day but has fallen significantly since the recommended dose was reduced. Liver toxicity induced by PZA is rare at doses of 25 mg/kg per day or less. PZA-induced fulminant hepatic failure is also rare but fatal. We report a case of fulminant hepatic failure caused by a re-challenge of PZA. (Tuberc Respir Dis 2007;63:435-439)
폐흡충증은 임상양상이나 방사선학적 소견이 폐결핵과 매우 유사하고 최근 우리나라에서 유병률이 낮아 조기 진단이 어렵다. 저자들은 폐결핵으로 오인된 폐흡충증 1예를 경험 하였으며 폐결핵이 의심되더라도 균이 증명되지 않거나 항결핵제 치료에 반응하지 않는 경우에 폐흡충증에 관한 병력 청취와 충란 검사 및 ELISA 검사를 통한 감별진단이 정확한 진단 및 치료에 도움이 될 것으로 사료된다.
Paragonimiasis mainly occurs by ingestion of raw or undercooked freshwater crabs or crayfish. In our country, the prevalence of paragonimiasis was high until late 1960s due to eating habits, but after the 1970s the prevalence of the disease has markedly decreased and now the disease is rarely seen. As the clinical and radiological features as well as the laboratory findings are similar to that of pulmonary tuberculosis, the differential diagnosis of pulmonary paragonimiasis is very difficult. We experienced a case of a patient with pulmonary paragonimiasis who was treated as having pulmonary tuberculosis. (Tuberc Respir Dis 2007;63:440-443)
저자 등은 대학 병원 응급실을 내원한 2명의 환자에서 근육내 자극 요법 후 부작용으로 발생한 의인성 기흉의 증례를 경험하였기에 보고하는 바이다.
Recently, intra-Muscular Stimulation (IMS) therapy is being increasingly used for musculoskeletal pain. This procedure is generally regarded as a safe procedure for the general public. Some cases of iatrogenic pneumothorax caused by acupuncture have been reported in the medical literature. However, a case of an IMS therapy associated pneumothorax has not reported. We experienced two cases of iatrogenic pneumothorax after IMS therapy. A 62 year-old man received IMS therapy on the right shoulder due to posterior neck pain. After IMS therapy, acute dyspnea and chest discomfort developed. The other patient was a 74 year-old woman who also received IMS therapy. This patient experienced a nonproductive cough and acute dyspnea after the treatment. As the popularity of this form of alternative medicine increases, we might expect to see more cases of iatrogenic pneumothorax. Physicians should be aware of the adverse events associated with IMS therapy. (Tuberc Respir Dis 2007;63:444-448)
항암제 치료 등을 위해서 피하매몰 중심정맥포트를 유치한 환자에서 도관 골절 및 원위부의 색전증은 드물게 발생하는 합병증으로 일반적인 경우는 경피적으로 도관의 제거가 가능하나, 임상의사들이 미리 이러한 합병증을 예측할 수 있는 임상적 및 방사선학적인 소견을 인지하고 조기에 발견하여 올바른 처치를 하는 것이 중요하며, 이러한 합병증을 예방하기 위한 방법 등에 대해서 숙지하는 것이 필요하다.
Totally implanted central venous access devices for chemotherapy (chemoport) are being used increasingly in lung cancer patients. Vascular catheters are associated with various complications including infection, thrombosis as well as spontaneous fractures and embolization of the catheter, which is known as 'pinch-off syndrome'. 'Pinch-off syndrome' refers to the compression of a subclavian central venous catheter between the clavicle and first rib resulting in an intermittent or permanent obstruction, which can lead to tears, transection, or embolization. We report two cases of fractured and embolized implanted subclavian venous catheters in which the fragments were removed percutaneously. A 62-year-old man presented with back pain with a duration of a few weeks. The chest radiograph revealed complete transsection and embolization of the catheter into the right atrium. In addition, a 47-year-old woman with a chemoport had a grade 3 pinch-off sign in a chest radiograph demonstrating complete transsection and embolization of the catheter into the pulmonary artery. Both cases were managed by retrieving the embolized distal fragment percutaneously and removing the proximal section of the catheter. (Tuberc Respir Dis 2007;63:449-453)
저자들은 심한 빈혈에 의한 전신무력감과 어지러움 증상을 주소로 내원한 환자에서 전종격동 종양이 관찰되어 조직검사를 시행하였으며, 흉선종에 동반된 PRCA로 진단하였다. 치료를 위해 흉선종 적출을 시행하였으며 수술 후 1년 6개월까지 더 이상의 수혈 없이 혈색소가 11.0 g/ dL 이상으로 유지되어 수술적 제거를 통한 흉선종에 동반된 PRCA의 완치를 경험하였다.
Thymomas are associated with different paraneoplastic syndromes, with the most clinically important association being with myasthenia gravis, hypogammaglobulinemia, and pure red cell aplasia (PRCA). The optimal therapy for PRCA that complicates a thymoma is unknown, given the rarity of the clinical situation. It has been suggested that remission following surgery alone is uncommon and most patients will require some other form of therapy. We report a case of PRCA with a thymoma in a 59-year-old man who remained in complete remission of the PRCA after surgical resection of the thymoma. (Tuberc Respir Dis 2007;63:454-457)
저자들은 기침과 호흡 곤란을 주소로 내원한 환자에서 원인 모를 건삭 파열로 인하여 발생한 나비 양상의 폐부종 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.
The typical radiographic findings of pulmonary edema from the increased hydrostatic pressure shows centrally localized consolidation, which is known as a "butterfly or bat's wing" pattern. These terms describe the anatomic distribution of edema that uniformly involve the hilum and medulla of the lung but not the peripheral region of the lung parenchyma (cortex). We present a case of butterfly wing-like pulmonary edema on a chest radiograph by mitral regurgitation due to an idiopathic chordal rupture. (Tuberc Respir Dis 2007;63:458-461)