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Article: Endobronchial Ultrasound Using Guide Sheath-Guided Transbronchial Lung Biopsy in Ground-Glass Opacity Pulmonary Lesions without Fluoroscopic Guidance.

Park, Jongsoo / Kim, Changwoon / Jang, Jong Geol / Lee, Seok Soo / Hong, Kyung Soo / Ahn, June Hong

2024 Volume 16, Issue 6

Abstract: Diagnosing ground-glass opacity (GGO) pulmonary lesions poses challenges. This study evaluates the utility of radial probe endobronchial ultrasound-guided transbronchial lung biopsy (RP-EBUS-TBLB) in diagnosing GGO pulmonary lesions. A total of 1651 RP- ... ...

Abstract	Diagnosing ground-glass opacity (GGO) pulmonary lesions poses challenges. This study evaluates the utility of radial probe endobronchial ultrasound-guided transbronchial lung biopsy (RP-EBUS-TBLB) in diagnosing GGO pulmonary lesions. A total of 1651 RP-EBUS procedures were performed during the study period. This study analyzed 115 GGO lesions. The EBUS visualization yield was 80.1%. Of 115 lesions, 69 (60%) were successfully diagnosed. The average size of diagnosed lesions was significantly larger than that of undiagnosed lesions (21.9 ± 7.3 vs. 17.1 ± 6.6 mm,
Language	English
Publishing date	2024-03-19
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2527080-1
ISSN	2072-6694
ISSN	2072-6694
DOI	10.3390/cancers16061203
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Article ; Online: Both quality of life and exacerbation are important outcomes of work-related asthma.

Jang, Jong Geol / Lee, Hyun / Min, Kyung Hoon / Kim, Sang-Heon / Yoon, Ho Joo / Moon, Ji-Yong

The journal of allergy and clinical immunology. In practice

2024 Volume 12, Issue 3, Page(s) 803–804

MeSH term(s)	Humans ; Quality of Life ; Asthma/epidemiology ; Surveys and Questionnaires
Language	English
Publishing date	2024-02-24
Publishing country	United States
Document type	Letter
ZDB-ID	2843237-X
ISSN	2213-2201 ; 2213-2198
ISSN (online)	2213-2201
ISSN	2213-2198
DOI	10.1016/j.jaip.2023.12.044
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Article ; Online: The Author's Response: Prognostic Accuracy of the SIRS, qSOFA, and NEWS for Early Detection of Clinical Deterioration in SARS-CoV-2 Infected Patients.

Jang, Jong Geol / Ahn, June Hong

Journal of Korean medical science

2020 Volume 35, Issue 30, Page(s) e275

MeSH term(s)	Betacoronavirus ; COVID-19 ; Clinical Deterioration ; Coronavirus Infections ; Humans ; Organ Dysfunction Scores ; Pandemics ; Pneumonia, Viral ; Prognosis ; SARS-CoV-2 ; Systemic Inflammatory Response Syndrome
Keywords	covid19
Language	English
Publishing date	2020-08-03
Publishing country	Korea (South)
Document type	Letter ; Comment
ZDB-ID	639262-3
ISSN	1598-6357 ; 1011-8934
ISSN (online)	1598-6357
ISSN	1011-8934
DOI	10.3346/jkms.2020.35.e275
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Article: Diagnosis and treatment of multidrug-resistant tuberculosis.

Jang, Jong Geol / Chung, Jin Hong

Yeungnam University journal of medicine

2020 Volume 37, Issue 4, Page(s) 277–285

Abstract: Tuberculosis (TB) is still a major health problem worldwide. Especially, multidrug-resistant TB (MDR-TB), which is defined as TB that shows resistance to both isoniazid and rifampicin, is a barrier in the treatment of TB. Globally, approximately 3.4% of ... ...

Abstract	Tuberculosis (TB) is still a major health problem worldwide. Especially, multidrug-resistant TB (MDR-TB), which is defined as TB that shows resistance to both isoniazid and rifampicin, is a barrier in the treatment of TB. Globally, approximately 3.4% of new TB patients and 20% of the patients with a history of previous treatment for TB were diagnosed with MDR-TB. The treatment of MDR-TB requires medications for a long duration (up to 20-24 months) with less effective and toxic second-line drugs and has unfavorable outcomes. However, treatment outcomes are expected to improve due to the introduction of a new agent (bedaquiline), repurposed drugs (linezolid, clofazimine, and cycloserine), and technological advancement in rapid drug sensitivity testing. The World Health Organization (WHO) released a rapid communication in 2018, followed by consolidated guidelines for the treatment of MDR-TB in 2019 based on clinical trials and an individual patient data meta-analysis. In these guidelines, the WHO suggested reclassification of second-line anti-TB drugs and recommended oral treatment regimens that included the new and repurposed agents. The aims of this article are to review the treatment strategies of MDR-TB based on the 2019 WHO guidelines regarding the management of MDR-TB and the diagnostic techniques for detecting resistance, including phenotypic and molecular drug sensitivity tests.
Language	English
Publishing date	2020-09-04
Publishing country	Korea (South)
Document type	Journal Article
ISSN	2384-0293
ISSN	2384-0293
DOI	10.12701/yujm.2020.00626
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Article: Reasons and Risk Factors for Readmission Following Hospitalization for Community-acquired Pneumonia in South Korea.

Jang, Jong Geol / Ahn, June Hong

Tuberculosis and respiratory diseases

2020 Volume 83, Issue 2, Page(s) 147–156

Abstract: Background: Limited studies have been performed to assess readmission following hospitalization for community-acquired pneumonia (CAP) in an Asian population. We evaluated the rates, reasons, and risk factors for 30-day readmission following ... ...

Abstract	Background: Limited studies have been performed to assess readmission following hospitalization for community-acquired pneumonia (CAP) in an Asian population. We evaluated the rates, reasons, and risk factors for 30-day readmission following hospitalization for CAP in the general adult population of Korea. Methods: We performed a retrospective observational study of 1,021 patients with CAP hospitalized at Yeungnam University from March 2012 to February 2014. The primary end point was all-cause hospital readmission within 30 days following discharge after the initial hospitalization. Hospital readmission was classified as pneumonia-related or pneumonia-unrelated readmission. Results: During the study period, 862 patients who survived to hospital discharge were eligible for inclusion and among them 72 (8.4%) were rehospitalized within 30 days. In the multivariable analysis, pneumonia-related readmission was associated with para/hemiplegia, malignancy, pneumonia severity index class ≥4 and clinical instability ≥1 at hospital discharge. Comorbidities such as chronic lung disease and chronic kidney disease, treatment failure, and decompensation of comorbidities were associated with the pneumonia-unrelated 30-day readmission rate. Conclusion: Rehospitalizations within 30 days following discharge were frequent among patients with CAP. The risk factors for pneumonia-related and -unrelated readmission were different. Aspiration prevention, discharge at the optimal time, and close monitoring of comorbidities may reduce the frequency of readmission among patients with CAP.
Language	English
Publishing date	2020-03-10
Publishing country	Korea (South)
Document type	Journal Article
ZDB-ID	2161256-0
ISSN	1738-3536 ; 0378-0066
ISSN	1738-3536 ; 0378-0066
DOI	10.4046/trd.2019.0073
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Article ; Online: Delayed onset of mediastinitis with tracheomediastinal fistula following endobronchial ultrasound-guided transbronchial needle aspiration; A case report.

Jang, Jong Geol / Ahn, June Hong / Lee, Seok Soo

Thoracic cancer

2021 Volume 12, Issue 7, Page(s) 1134–1136

Abstract: Infectious complications after endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) are rare but serious. Here, we report a very rare case of delayed onset of mediastinitis with tracheomediastinal fistula after EBUS-TBNA. Surgical ...

Abstract	Infectious complications after endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) are rare but serious. Here, we report a very rare case of delayed onset of mediastinitis with tracheomediastinal fistula after EBUS-TBNA. Surgical debridement was performed, antibiotics were administered, and the postoperative course of the patient was good. Careful monitoring is needed to prevent the possible development of infectious complications after EBUS-TBNA.
MeSH term(s)	Aged ; Bronchoscopy/adverse effects ; Endoscopic Ultrasound-Guided Fine Needle Aspiration/adverse effects ; Female ; Humans ; Mediastinitis/diagnosis
Language	English
Publishing date	2021-02-19
Publishing country	Singapore
Document type	Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2625856-0
ISSN	1759-7714 ; 1759-7706
ISSN (online)	1759-7714
ISSN	1759-7706
DOI	10.1111/1759-7714.13888
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Article ; Online: Low diffusion capacity predicts poor prognosis in extensive stage small cell lung cancer: a single-center analysis of 10 years.

Kim, Jee Seon / Kim, Eun Ji / Jang, Jong Geol / Hong, Kyung Soo / Ahn, June Hong

Journal of cancer research and clinical oncology

2023 Volume 149, Issue 10, Page(s) 7275–7283

Abstract: Background: Poor pulmonary function and chronic obstructive pulmonary disease (COPD) are associated with poorer overall survival (OS) in non-small-cell lung cancer (NSCLC) patients. Few studies have investigated the association between pulmonary ... ...

Abstract	Background: Poor pulmonary function and chronic obstructive pulmonary disease (COPD) are associated with poorer overall survival (OS) in non-small-cell lung cancer (NSCLC) patients. Few studies have investigated the association between pulmonary function and OS in small-cell lung cancer (SCLC) patients. We compared the clinical characteristics of extensive disease SCLC (ED-SCLC) with or without moderately impaired diffusion capacity for carbon monoxide (DLco) and investigated the factors associated with survival in ED-SCLC patients. Methods: This retrospective single-center study was performed between January 2011 and December 2020. Of the 307 SCLC patients who received cancer therapy during the study, 142 with ED-SCLC were analyzed. The patients were divided into DLco < 60% group and DLco ≥ 60% groups. OS and predictors of poor OS were analyzed. Results: The median OS of the 142 ED-SCLC patients was 9.3 months and the median age was 68 years. In total, 129 (90.8%) patients had a history of smoking, and 60 (42.3%) had COPD. Thirty-five (24.6%) patients were assigned to the DLco < 60% group. Multivariate analysis revealed that DLco < 60% (odds ratio [OR], 1.609; 95% confidence interval [CI], 1.062-2.437; P = 0.025), number of metastases (OR, 1.488; 95% CI, 1.262-1.756; P < 0.001), and < 4 cycles of first-line chemotherapy (OR, 3.793; 95% CI, 2.530-5.686; P < 0.001) were associated with poor OS. Forty (28.2%) patients received < 4 cycles of first-line chemotherapy; the most common reason for this was death (n = 22, 55%) from grade 4 febrile neutropenia (n = 15), infection (n = 5), or massive hemoptysis (n = 2). The DLco < 60% group had a shorter median OS than the DLco ≥ 60% group (10.6 ± 0.8 vs. 4.9 ± 0.9 months, P = 0.003). Conclusions: In this study, approximately one quarter of the ED-SCLC patients had DLco < 60%. Low DLco (but not forced expiratory volume in 1 s or forced vital capacity), a large number of metastases, and < 4 cycles of first-line chemotherapy were independent risk factors for poor survival outcomes in patients with ED-SCLC.
MeSH term(s)	Humans ; Aged ; Small Cell Lung Carcinoma/drug therapy ; Lung Neoplasms/pathology ; Carcinoma, Non-Small-Cell Lung/drug therapy ; Carcinoma, Non-Small-Cell Lung/complications ; Retrospective Studies ; Pulmonary Disease, Chronic Obstructive ; Prognosis
Language	English
Publishing date	2023-03-13
Publishing country	Germany
Document type	Journal Article
ZDB-ID	134792-5
ISSN	1432-1335 ; 0171-5216 ; 0084-5353 ; 0943-9382
ISSN (online)	1432-1335
ISSN	0171-5216 ; 0084-5353 ; 0943-9382
DOI	10.1007/s00432-023-04686-2
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Article: The Author's Response: Prognostic Accuracy of the SIRS, qSOFA, and NEWS for Early Detection of Clinical Deterioration in SARS-CoV-2 Infected Patients

Jang, Jong Geol / Ahn, June Hong

J Korean Med Sci

Keywords	covid19
Publisher	WHO
Document type	Article
Note	WHO #Covidence: #693056
Database	COVID19

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Article ; Online: Incidence and Prognostic Factors of Respiratory Viral Infections in Severe Acute Exacerbation of Chronic Obstructive Pulmonary Disease.

Jang, Jong Geol / Ahn, June Hong / Jin, Hyun Jung

International journal of chronic obstructive pulmonary disease

2021 Volume 16, Page(s) 1265–1273

Abstract: Purpose: Severe acute exacerbations of chronic obstructive pulmonary disease (AECOPD) that require hospitalization and emergency department visits are associated with considerable morbidity and mortality. Respiratory viral infection is an important ... ...

Abstract	Purpose: Severe acute exacerbations of chronic obstructive pulmonary disease (AECOPD) that require hospitalization and emergency department visits are associated with considerable morbidity and mortality. Respiratory viral infection is an important cause of severe AECOPD. We evaluated the incidence and prognostic factors of viral infection in severe AECOPD. Patients and methods: We performed a retrospective study of 262 cases of severe AECOPD in 192 patients who required hospitalization and emergency department visits at a tertiary teaching hospital in Daegu, Korea. A multiplex polymerase chain reaction panel using a nasopharyngeal swab sample was performed to detect viral infection. Results: Viral infection was detected in 108 events (41.2%) from 96 patients. The most common virus was rhinovirus/enterovirus (27.5%), followed by influenza virus (22.5%), respiratory syncytial virus (13.3%), parainfluenza virus (12.5%), coronavirus (12.5%), metapneumovirus (7.5%), and adenovirus (4.2%). Virus-positive exacerbations, compared to virus-negative exacerbations, had a higher frequency of symptoms of rhinopharyngitis, higher neutrophil count and C-reactive protein (CRP) level, and lower eosinophil count. Multivariate analysis demonstrated that elevated CRP levels (odds ratio [OR], 2.76; 95% confidence interval [CI], 1.24-6.15), symptoms of rhinopharyngitis (OR, 1.98; 95% CI, 1.03-3.78), low eosinophil count (OR, 1.74; 95% CI, 1.03-2.92), and inhaled corticosteroid (ICS) use (OR, 1.70; 95% CI 1.04-2.80) were associated with viral infection in severe AECOPD. Conclusion: The incidence of viral infection in severe AECOPD was 41.2%, and the most commonly detected virus was rhinovirus/enterovirus. Increased CRP level, symptoms of rhinopharyngitis, low eosinophil count, and use of ICS were associated with viral infection in severe AECOPD.
MeSH term(s)	Acute Disease ; Humans ; Incidence ; Prognosis ; Pulmonary Disease, Chronic Obstructive/diagnosis ; Pulmonary Disease, Chronic Obstructive/epidemiology ; Republic of Korea/epidemiology ; Respiratory Tract Infections/diagnosis ; Respiratory Tract Infections/epidemiology ; Retrospective Studies ; Virus Diseases/diagnosis ; Virus Diseases/epidemiology
Language	English
Publishing date	2021-05-07
Publishing country	New Zealand
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1178-2005
ISSN (online)	1178-2005
DOI	10.2147/COPD.S306916
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Article ; Online: Radial probe endobronchial ultrasound-guided transbronchial lung biopsy for the diagnosis of cavitary peripheral pulmonary lesions.

Hong, Kyung Soo / Jang, Jong Geol / Ahn, June Hong

Thoracic cancer

2021 Volume 12, Issue 11, Page(s) 1735–1742

Abstract: Background: Cavitary peripheral pulmonary lesions (PPLs) are often diagnosed via transthoracic needle biopsy. However, today, radial probe endobronchial ultrasound (RP-EBUS) is widely used to diagnose PPLs. The efficacy and safety of RP-EBUS-guided ... ...

Abstract	Background: Cavitary peripheral pulmonary lesions (PPLs) are often diagnosed via transthoracic needle biopsy. However, today, radial probe endobronchial ultrasound (RP-EBUS) is widely used to diagnose PPLs. The efficacy and safety of RP-EBUS-guided transbronchial lung biopsy (RP-EBUS-TBLB) used to diagnose cavitary PPLs remain poorly known. We investigated the utility of RP-EBUS-TBLB using a guide sheath (GS) without fluoroscopy to diagnose PPLs. Methods: Of 743 RP-EBUS procedures conducted to diagnose PPLs performed at our institution from January 2019 to October 2020, we analyzed 77 cavitary PPLs. TBLB was performed using RP-EBUS with a GS without fluoroscopy. The diagnostic accuracy and complications were assessed. All lung lesions with a definitive diagnosis were included in analyses. Results: The overall diagnostic accuracy was 85.7% (66/77). Of malignant lesions (n = 34), 29 (85.3%) were diagnosed successfully. Of benign lesions (n = 43), 37 (86.0%) were diagnosed successfully. In multivariate analyses, a thicker cavity wall (≥10 mm, odds ratio [OR] 14.22, 95% confidence interval [CI] 2.58-78.35, p = 0.002) and EBUS imaging with the probe within the lesion (OR 12.02, 95% CI 1.91-75.53, p = 0.008) independently affected diagnostic success. The likelihood of success increased with increasing thickness of the cavity wall (p < 0.001, test for trend). The specimens obtained for molecular confirmation of malignancy were satisfactory. There were four cases of infection (5.2%) and three cases of pneumothorax (3.9%). Conclusions: RP-EBUS-TBLB of cavitary PPLs affords high diagnostic accuracy with acceptable complication rates.
MeSH term(s)	Biopsy/methods ; Bronchoscopy/methods ; Female ; Humans ; Lung Neoplasms/diagnosis ; Lung Neoplasms/pathology ; Lung Neoplasms/surgery ; Male ; Ultrasonography, Interventional/methods
Language	English
Publishing date	2021-05-04
Publishing country	Singapore
Document type	Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2625856-0
ISSN	1759-7714 ; 1759-7706
ISSN (online)	1759-7714
ISSN	1759-7706
DOI	10.1111/1759-7714.13980
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