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대한결핵 및 호흡기학회> Tuberculosis and Respiratory Diseases> Korean Guidelines for Diagnosis and Management of Interstitial Lung Diseases: Part 4. Cryptogenic Organizing Pneumonia

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Korean Guidelines for Diagnosis and Management of Interstitial Lung Diseases: Part 4. Cryptogenic Organizing Pneumonia

Sue In Choi , Won Jai Jung , Eun Joo Lee
  • : 대한결핵 및 호흡기학회
  • : Tuberculosis and Respiratory Diseases 84권3호
  • : 연속간행물
  • : 2021년 07월
  • : 171-175(5pages)
Tuberculosis and Respiratory Diseases

DOI


목차

Introduction
Clinical Manifestation and Diagnosis
Treatment
Natural Course and Prognosis
Authors’ Contributions
Conflicts of Interest
Funding
References

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Cryptogenic organizing pneumonia (COP) is a type of idiopathic interstitial pneumonia with an acute or subacute clinical course. Bilateral lung consolidations located in the subpleural area and bronchovascular bundle are the most common findings on chest high-resolution computed tomography. The pathologic manifestations include granulation tissue in the alveoli, alveolar ducts, and bronchioles. COP responds fairly well to glucocorticoid monotherapy with rapid clinical improvement, but recurrence is common. However, treatment with combined immunosuppressant agents is not recommended, even if the COP patient does not respond to glucocorticoid monotherapy with expert opinion.

UCI(KEPA)

I410-ECN-0102-2022-500-000684581

간행물정보

  • : 의약학분야  > 내과학
  • : KCI등재
  • : SCOPUS
  • : 계간
  • : 1738-3536
  • : 2005-6184
  • : 학술지
  • : 연속간행물
  • : 1954-2023
  • : 5086


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Background: Umeclidinium/vilanterol (UMEC/VI; ANORO ELLIPTA, GSK) is a commonly used dual bronchodilator. This study evaluated the safety and effectiveness of UMEC/VI in Korean patients with chronic obstructive pulmonary disease (COPD) over a 6-year period.
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Conclusion: This study confirmed UMEC/VI administered to Korean patients according to the prescribing information was well-tolerated and can be considered an effective option for COPD treatment.

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1Korean Guidelines for Diagnosis and Management of Interstitial Lung Diseases: Part 4. Cryptogenic Organizing Pneumonia

저자 : Sue In Choi , Won Jai Jung , Eun Joo Lee

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 171-175 (5 pages)

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Cryptogenic organizing pneumonia (COP) is a type of idiopathic interstitial pneumonia with an acute or subacute clinical course. Bilateral lung consolidations located in the subpleural area and bronchovascular bundle are the most common findings on chest high-resolution computed tomography. The pathologic manifestations include granulation tissue in the alveoli, alveolar ducts, and bronchioles. COP responds fairly well to glucocorticoid monotherapy with rapid clinical improvement, but recurrence is common. However, treatment with combined immunosuppressant agents is not recommended, even if the COP patient does not respond to glucocorticoid monotherapy with expert opinion.

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2Experience of Treating Critically Ill COVID-19 Patients in Daegu, South Korea

저자 : Kyeong-cheol Shin

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 176-181 (6 pages)

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At the beginning of February 2020, Daegu faced a serious situation due to the rapid outbreak of coronavirus disease 2019 (COVID-19), which is caused by severe acute respiratory syndrome coronavirus-2. The healthcare system in Daegu Metropolitan City was ill-prepared for this sudden disaster situation. The COVID-19 pandemic is still ongoing in South Korea. Daegu has limited medical resources compared to the Seoul Metropolitan Area, and it is hypothesized that a review of the outbreak therein could provide information that will be valuable for dealing with future outbreaks. The likelihood of death due to COVID-19 depends on the capacity of the area for the treatment of critically ill patients. This report reviews the overall treatment process followed for critically ill patients in Daegu.

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3Measurement of Fractional Exhaled Nitric Oxide in Adults: Comparison of Two Different Analyzers (NIOX VERO and NObreath)

저자 : Sung-yoon Kang , Sang Min Lee , Sang Pyo Lee

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 182-187 (6 pages)

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Background: Fractional exhaled nitric oxide (FeNO) is a non-invasive marker for eosinophilic airway inflammation and a good predictor of response to corticosteroids. There is a need for a reliable and accurate measurement method, as FeNO measurements have been widely used in clinical practice. Our study aimed to compare two FeNO analyzers and derive a conversion equation for FeNO measurements in adults.
Methods: We included 99 participants who had chief complaints of chronic cough and difficulty in breathing. The participants underwent concurrent FeNO measurement using NIOX VERO (Circassia AB) and NObreath (Bedfont). We compared the values of the two devices and analyzed their correlation and agreement. We then formulated an equation to convert FeNO values measured by NObreath into those obtained by NIOX VERO.
Results: The mean age of the participants was 51.2±17.1 years, with a female predominance (58.6%). Approximately 60% of the participants had asthma. The FeNO level measured by NIOX VERO (median, 27; interquartile range [IQR], 15-45) was significantly lower than that measured by NObreath (median, 38; IQR, 22-58; p<0.001). There was a strong positive correlation between the two devices (r=0.779, p<0.001). Additionally, Bland-Altman plots and intraclass correlation coefficient demonstrated a good agreement. Using linear regression, we derived the following conversion equation: natural log (Ln) (NObreath)=0.728×Ln (NIOX VERO)+1.244.
Conclusion: The FeNO values of NIOX VERO and NObreath were in good agreement and had positive correlations. Our proposed conversion equation could help assess the accuracy of the two analyzers.

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4Correlation between Telomere Length and Chronic Obstructive Pulmonary Disease-Related Phenotypes: Results from the Chronic Obstructive Pulmonary Disease in Dusty Areas (CODA) Cohort

저자 : Da Hye Moon , Jeeyoung Kim , Myoung Nam Lim , So Hyen Bak , Woo Jin Kim

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 188-203 (16 pages)

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Background: Chronic obstructive pulmonary disease (COPD) is a common chronic respiratory disease with increased prevalence in the elderly. Telomeres are repetitive DNA sequences found at the end of the chromosome, which progressively shorten as cells divide. Telomere length is known to be a molecular marker of aging. This study aimed to assess the relationship between telomere length and the risk of COPD, lung function, respiratory symptoms, and emphysema index in Chronic Obstructive Pulmonary Disease in Dusty Areas (CODA) cohort.
Methods: We extracted DNA from the peripheral blood samples of 446 participants, including 285 COPD patients and 161 control participants. We measured absolute telomere length using quantitative real-time polymerase chain reaction. All participants underwent spirometry and quantitative computed tomography scan. Questionnaires assessing respiratory symptoms and the COPD Assessment Test was filled by all the participants.
Results: The mean age of participants at the baseline visit was 72.5±7.1 years. Males accounted for 72% (321 participants) of the all participants. The mean telomere length was lower in the COPD group compared to the non-COPD group (COPD, 16.81±13.90 kb; non-COPD, 21.97±14.43 kb). In COPD patients, 112 (75.7%) were distributed as tertile 1 (shortest), 91 (61.1%) as tertile 2 and 82 (55%) as tertile 3 (longest). We did not find significant associations between telomere length and lung function, exacerbation, airway wall thickness, and emphysema index after adjusting for sex, age, and smoking status.
Conclusion: In this study, the relationship between various COPD phenotypes and telomere length was analyzed, but no significant statistical associations were shown.

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5Role of Krebs von den Lungen-6 (KL-6) in Assessing Hypersensitivity Pneumonitis

저자 : Amira Ismail Mostafa , Ayman Elsayed Salem , Heba Allah Moussa Ahmed , Aml Ibrahim Bayoumi , Radwa M. Abdel Halim , Rasha M. Abdel Samie

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 200-208 (9 pages)

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Background: Hypersensitivity pneumonitis (HP) is an increasingly recognized form of diffuse parenchymal lung disease. Krebs von den Lungen-6 (KL-6) is now classified as a human MUC1 mucin protein, and regenerating type II pneumocytes are the primary cellular source of KL-6/MUC1 in the affected lungs of patients with interstitial lung diseases (ILD). Serum KL-6/MUC1 levels have been demonstrated to be useful for the evaluation of various ILD. To determine the role of circulating KL-6 in evaluating the disease activity and management of HP.
Methods: An observational cross-sectional study was conducted on 51 patients with HP and 20 healthy controls. Serum KL-6 levels were measured in both groups. Patients were further assessed based on chest high-resolution computed tomography (HRCT), pulmonary function test, 6-minute walk test, echocardiography, bronchioalveolar lavage, and/or transbronchial biopsy. Patients were divided into the fibrotic and non-fibrotic groups according to the HRCT findings.
Results: The median serum KL-6 levels were significantly higher in HP patients as compared to the control group. The median serum KL-6 levels were found to be higher in the non-fibrotic HP group (1,900 IU/mL) as compared to the fibrotic group (1,200 IU/mL). There was a significant inverse correlation between serum KL-6 serum level and the dose of steroids as well as the duration of steroid therapy.
Conclusion: The presence of higher KL-6 levels in the non-fibrotic HP group implies its enhanced production by regenerating pneumocytes in response to alveolar injury. The significant association between serum KL-6 levels and the dose and the duration of steroid therapy emphasizes the significant role of steroids in the stabilization of the disease.

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6Comparison of Clinical and Radiologic Characteristics between Anthracofibrosis and Endobronchial Lung Cancer

저자 : Seo Young Yun , Tae Yun Park

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 209-216 (8 pages)

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Background: Endobronchial lung cancer (EBLC) and bronchial anthracofibrosis (BAF) share similar symptoms and radiological findings. The aim of this study was to describe clinical and radiological differences between BAF and EBLC, both of which were confirmed by bronchoscopy.
Methods: This was a retrospective study of patients with BAF or EBLC from 2008 to 2014. Data were derived from a bronchoscopy registry made since January 1, 2008. Clinical and radiological characteristics of both diseases were analyzed.
Results: Among 3,214 patients who underwent bronchoscopy, 167 and 117 patients were enrolled in BAF and EBLC groups, respectively. BAF occurred more predominantly in older non-smoking female patients with a higher chance of tuberculosis (38.3%) than EBLC (6.0%). Cough, sputum, and dyspnea were common symptoms reported for both groups. Bronchoscopic findings revealed that BAF lesions were more common in multiple lobar bronchi (85.0%) or bilateral bronchi (73.7%). Radiologic findings revealed that bronchial stenosis was the most commonly found lesion in both groups (49.1% and 78.6%, respectively). Rates of peribronchial calcification and bronchial wall thickening were higher in the BAF group. The number of patients with lymph node calcification was also higher in the BAF group.
Conclusion: Results of this study demonstrated characteristics of clinical and radiologic findings of BAF and EBLC. Increasing the awareness of both diseases may help clinicians differentiate these two diseases from each other, thus avoiding unnecessary invasive diagnostic procedures.

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7The Effect of the Timing of Dexamethasone Administration in Patients with COVID-19 Pneumonia

저자 : Hyun Woo Lee , Jimyung Park , Jung-kyu Lee , Tae Yeon Park , Eun Young Heo

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 217-226 (10 pages)

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Background: Despite the proven benefits of dexamethasone in hospitalized coronavirus disease 2019 (COVID-19) patients, the optimum time for the administration of dexamethasone is unknown. We investigated the progression of COVID-19 pneumonia based on the timing of dexamethasone administration.
Methods: A single-center, retrospective cohort study based on medical record reviews was conducted between June 10 and September 21, 2020. We compared the risk of severe COVID-19, defined as the use of a high-flow nasal cannula or a mechanical ventilator, between groups that received dexamethasone either within 24 hours of hypoxemia (early dexamethasone group) or 24 hours after hypoxemia (late dexamethasone group). Hypoxemia was defined as room-air SpO2 <90%.
Results: Among 59 patients treated with dexamethasone for COVID-19 pneumonia, 30 were in the early dexamethasone group and 29 were in the late dexamethasone group. There was no significant difference in baseline characteristics, the time interval from symptom onset to diagnosis or hospitalization, or the use of antiviral or antibacterial agents between the two groups. The early dexamethasone group showed a significantly lower rate of severe COVID-19 compared to the control group (75.9% vs. 40.0%, p=0.012). Further, the early dexamethasone group showed a significantly shorter total duration of oxygen supplementation (10.45 days vs. 21.61 days, p=0.003) and length of stay in the hospital (19.76 days vs. 27.21 days, p=0.013). However, extracorporeal membrane oxygenation and in-hospital mortality rates were not significantly different between the two groups.
Conclusion: Early administration of dexamethasone may prevent the progression of COVID-19 to a severe disease, without increased mortality.

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8Diagnostic Accuracy of the Quidel Sofia Rapid Influenza Fluorescent Immunoassay in Patients with Influenza-like Illness: A Systematic Review and Meta-analysis

저자 : Jonghoo Lee , Jae-uk Song , Yee Hyung Kim

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 226-236 (11 pages)

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Background: Although the Quidel Sofia rapid influenza fluorescent immunoassay (FIA) is widely used to identify influenza A and B, the diagnostic accuracy of this test remains unclear. Thus, the objective of this study was to determine the diagnostic performance of this test compared to reverse transcriptase-polymerase chain reaction.
Methods: A systematic literature search was performed using MEDLINE, EMBASE, and the Cochrane Central Register. Pooled sensitivity, specificity, diagnostic odds ratio (DOR), and a hierarchical summary receiver-operating characteristic curve (HSROC) of this test for identifying influenza A and B were determined using meta-analysis. A sensitivity subgroup analysis was performed to identify potential sources of heterogeneity within selected studies.
Results: We identified 17 studies involving 8,334 patients. Pooled sensitivity, specificity, and DOR of the Quidel Sofia rapid influenza FIA for identifying influenza A were 0.78 (95% confidence interval [CI], 0.71-0.83), 0.99 (95% CI, 0.98-0.99), and 251.26 (95% CI, 139.39-452.89), respectively. Pooled sensitivity, specificity, and DOR of this test for identifying influenza B were 0.72 (95% CI, 0.60-0.82), 0.98 (95% CI, 0.96-0.99), and 140.20 (95% CI, 55.92-351.54), respectively. The area under the HSROC for this test for identifying influenza A was similar to that for identifying influenza B. Age was considered a probable source of heterogeneity.
Conclusion: Pooled sensitivities of the Quidel Sofia rapid influenza FIA for identifying influenza A and B did not quite meet the target level (≥80%). Thus, caution is needed when interpreting data of this study due to substantial between-study heterogeneity.

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9Comparative Performance of Line Probe Assay (Version 2) and Xpert MTB/RIF Assay for Early Diagnosis of Rifampicin-Resistant Pulmonary Tuberculosis

저자 : Raj Narayan Yadav , Binit Kumar Singh , Rohini Sharma , Jigyasa Chaubey , Sanjeev Sinha , Pankaj Jorwal

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 237-244 (8 pages)

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Background: The emergence of drug-resistant tuberculosis (TB), is a major menace to cast off TB worldwide. Line probe assay (LPA; GenoType MTBDRplus ver. 2) and Xpert MTB/RIF assays are two rapid molecular TB detection/diagnostic tests. To compare the performance of LPA and Xpert MTB/RIF assay for early diagnosis of rifampicin-resistant (RR) TB in acid-fast bacillus (AFB) smear-positive and negative sputum samples.
Methods: A total 576 presumptive AFB patients were selected and subjected to AFB microscopy, Xpert MTB/RIF assay and recent version of LPA (GenoType MTBDRplus assay version 2) tests directly on sputum samples. Results were compared with phenotypic culture and drug susceptibility testing (DST). DNA sequencing was performed with rpoB gene for samples with discordant rifampicin susceptibility results.
Results: Among culture-positive samples, Xpert MTB/RIF assay detected Mycobacterium tuberculosis (Mtb) in 97.3% (364/374) of AFB smear-positive samples and 76.5% (13/17) among smear-negative samples, and the corresponding values for LPA test (valid results with Mtb control band) were 97.9% (366/374) and 58.8% (10/17), respectively. For detection of RR among Mtb positive molecular results, the sensitivity of Xpert MTB/RIF assay and LPA (after resolving discordant phenotypic DST results with DNA sequencing) were found to be 96% and 99%, respectively. Whereas, specificity of both test for detecting RR were found to be 99%.
Conclusion: We conclude that although Xpert MTB/RIF assay is comparatively superior to LPA in detecting Mtb among AFB smear-negative pulmonary TB. However, both tests are equally efficient in early diagnosis of AFB smear-positive presumptive RR-TB patients.

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10Delayed Diagnosis of Tuberculosis Mistaken for Tinea Corporis in a Healthy Adult

저자 : Jae-wang Kim , Jeong Rae Yoo , Hyunjoo Oh , Misun Kim , Sang Taek Heo

발행기관 : 대한결핵 및 호흡기학회 간행물 : Tuberculosis and Respiratory Diseases 84권 3호 발행 연도 : 2021 페이지 : pp. 245-246 (2 pages)

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