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Batra K, Adams TN. Imaging Features of Idiopathic Interstitial Lung Diseases. J Thorac Imaging 2023; 38:S19-S29. [PMID: 37505195 DOI: 10.1097/rti.0000000000000728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Idiopathic interstitial pneumonias (IIPs) are a group of diffuse parenchymal lung diseases of unclear etiology and are distinguished from diffuse parenchymal lung diseases of known cause, such as connective tissue disease-related interstitial lung diseases or hypersensitivity pneumonitis by history, physical exam, imaging, serologic testing, and, when necessary, histopathology. The 2013 American Thoracic Society (ATS)/European Respiratory Society (ERS) guidelines are the most widely accepted classification of IIPs and include the following diagnoses: idiopathic pulmonary fibrosis, idiopathic nonspecific interstitial pneumonia, cryptogenic organizing pneumonia, acute interstitial pneumonia, idiopathic lymphocytic interstitial pneumonia, idiopathic pleuro-parenchymal fibroelastosis, respiratory bronchiolitis-interstitial lung disease, and desquamative interstitial pneumonia. The gold standard for diagnosis of IIP involves multidisciplinary discussion among pulmonologists, radiologists, and pathologists. The focus of this review will be to discuss the imaging features of the most common IIPs and the role of multidisciplinary discussion as the gold standard for diagnosis.
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Affiliation(s)
| | - Traci N Adams
- Department of Medicine, University of Texas Southwestern Medical Center, Dallas, TX
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2
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Awano N, Jo T, Izumo T, Inomata M, Morita K, Matsui H, Fushimi K, Urushiyama H, Nagase T, Yasunaga H. Efficacy of initial high- versus low-dose intravenous corticosteroid therapy in patients with acute exacerbation of idiopathic interstitial pneumonia: A nationwide observational study. ANNALS OF CLINICAL EPIDEMIOLOGY 2022; 5:37-47. [PMID: 38505731 PMCID: PMC10944999 DOI: 10.37737/ace.23006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 09/23/2022] [Indexed: 03/21/2024]
Abstract
BACKGROUND Acute exacerbation of idiopathic interstitial pneumonias (AE-IIPs) has a high mortality. However, there is no established treatment for AE-IIPs. Therefore, we aimed to compare the efficacy of high- and low-dose corticosteroid therapies in AE-IIPs patients. METHODS Data were retrospectively collected from the Japanese Diagnosis Procedure Combination database from July 2010 to March 2018. Adult patients with AE-IIPs who received high-dose (methylprednisolone at a dose of 500-1000 mg/day for 3 days starting within 4 days after admission) or low-dose (methylprednisolone at a dose of 100-200 mg/day for at least 5 days starting within 4 days after admission) corticosteroid therapy were identified. Eligible patients (n = 17,317) were divided into the high-dose (n = 16,998) and low-dose (n = 319) groups. A stabilized inverse probability of treatment weighting using propensity scores was performed to compare outcomes between the groups. RESULTS The primary outcome was in-hospital mortality, and the secondary outcomes were 28-day mortality, infections during hospitalization, length of hospitalization, duration of steroid use, and discharge to home. The in-hospital mortality rates of the high- and low-dose corticosteroid groups were 50.6% and 47.0%, respectively. In-hospital mortality did not significantly differ between the two groups after stabilized inverse probability of treatment weighting, and the odds ratio in the low-dose corticosteroid group was 0.86 (95% confidence interval: 0.64-1.16; p = 0.33). The secondary outcomes also did not significantly differ between the groups. CONCLUSIONS There was no significant difference in outcomes between patients with AE-IIPs who received high- and low-dose corticosteroid therapies.
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Affiliation(s)
- Nobuyasu Awano
- Department of Respiratory Medicine, Japanese Red Cross Medical Center
| | - Taisuke Jo
- Department of Health Services Research, Graduate School of Medicine, The University of Tokyo
- Department of Respiratory Medicine, Graduate School of Medicine, The University of Tokyo
| | - Takehiro Izumo
- Department of Respiratory Medicine, Japanese Red Cross Medical Center
| | - Minoru Inomata
- Department of Respiratory Medicine, Japanese Red Cross Medical Center
| | - Kojiro Morita
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
- Department of Health Services Research, Faculty of Medicine, University of Tsukuba
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine
| | - Hirokazu Urushiyama
- Department of Respiratory Medicine, Graduate School of Medicine, The University of Tokyo
| | - Takahide Nagase
- Department of Respiratory Medicine, Graduate School of Medicine, The University of Tokyo
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo
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Cherian SV, Patel D, Machnicki S, Naidich D, Stover D, Travis WD, Brown KK, Naidich JJ, Mahajan A, Esposito M, Mina B, Lakticova V, Cohen SL, Muller NL, Schulner J, Shah R, Raoof S. Algorithmic Approach to the Diagnosis of Organizing Pneumonia: A Correlation of Clinical, Radiologic, and Pathologic Features. Chest 2022; 162:156-178. [PMID: 35038455 PMCID: PMC9899643 DOI: 10.1016/j.chest.2021.12.659] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 11/23/2021] [Accepted: 12/27/2021] [Indexed: 01/19/2023] Open
Abstract
Organizing pneumonia (OP), characterized histopathologically by patchy filling of alveoli and bronchioles by loose plugs of connective tissue, may be seen in a variety of conditions. These include but are not limited to after an infection, drug reactions, radiation therapy, and collagen vascular diseases. When a specific cause is responsible for this entity, it is referred to as "secondary OP." When an extensive search fails to reveal a cause, it is referred to as "cryptogenic OP" (previously called "bronchiolitis obliterans with OP"), which is a clinical, radiologic, and pathologic entity classified as an interstitial lung disease. The clinical presentation of OP often mimics that of other disorders, such as infection and cancer, which can result in a delay in diagnosis and inappropriate management of the underlying disease. The radiographic presentation of OP is polymorphous but often has subpleural consolidations with air bronchograms or solitary or multiple nodules, which can wax and wane. Diagnosis of OP sometimes requires histopathologic confirmation and exclusion of other possible causes. Treatment usually requires a prolonged steroid course, and disease relapse is common. The aim of this article is to summarize the clinical, radiographic, and histologic presentations of this disease and to provide a practical diagnostic algorithmic approach incorporating clinical history and characteristic imaging patterns.
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Affiliation(s)
- Sujith V. Cherian
- Divisions of Critical Care, Pulmonary and Sleep Medicine, Dept. Of Internal Medicine, University of Texas Health-McGovern Medical School, Houston, TX
| | - Dhara Patel
- Pulmonary Medicine, Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, Hempstead, NY
| | - Stephen Machnicki
- Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, Hempstead, NY
| | - David Naidich
- Department of Radiology, Center for Biologic Imaging, NYU-Langone Medical Center, New York, NY
| | - Diane Stover
- Pulmonary, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, NY
| | - William D. Travis
- Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, NY
| | - Kevin K. Brown
- Department of Medicine, National Jewish Health, Denver, CO
| | - Jason J. Naidich
- Departments of Radiology, Northwell Health, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY,Pathology, Northwell Health, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY,Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY,Northwell Health Lung Institute, and Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
| | - Akhilesh Mahajan
- Division of Pulmonary and Critical Care Medicine, Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, Hempstead, NY
| | - Michael Esposito
- Pathology, Northwell Health, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
| | - Bushra Mina
- Internal Medicine, Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, Hempstead, NY
| | - Viera Lakticova
- Division of Pulmonary and Critical Care Medicine, Zucker School of Medicine at Hofstra/Northwell, Lenox Hill Hospital, Hempstead, NY
| | - Stuart L. Cohen
- Department of Radiology, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
| | - Nestor L. Muller
- Department of Radiology, University of British Columbia, Vancouver, BC, Canada
| | - Jenna Schulner
- Division of Pulmonary and Critical Care Medicine, Lenox Hill Hospital, New York, NY
| | - Rakesh Shah
- Departments of Radiology, Northwell Health, Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
| | - Suhail Raoof
- Northwell Health Lung Institute, and Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY.
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von der Beck D, Grimminger F, Seeger W, Günther A, Löh B. Interstitial Lung Disease: Seasonality of Hospitalizations and In-Hospital Mortality 2005-2015. Respiration 2021; 101:253-261. [PMID: 34628406 DOI: 10.1159/000519214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 08/11/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The overall incidence of interstitial lung disease and disease-associated mortality have been found on the rise. Hospitalizations for interstitial lung disease are typically caused by airway infection or the acute exacerbation of the underlying disease. Seasonal variance in ambient air pollution has recently been linked to exacerbation and mortality. We sought to examine the seasonal pattern of hospitalizations in Germany, use of mechanical ventilation, and in-hospital mortality on a year-by-year basis to identify their overall trend and to characterize seasonal patterns. METHODS The national in-patient database of the federal statistical office of Germany was searched for cases of interstitial lung disease. RESULTS A total of 130,366 hospitalizations for ILD occurred from 2005 to 2015. Time series data were examined for seasonality using X-11 statistics. The incidence of hospitalizations, mechanical ventilation, and in-hospital mortality show clear seasonal peaks in the cold season. The observed seasonality cannot be attributed to the variance of selected comorbidities. Also, there is a significant overall upward trend regarding hospitalization counts, especially in the use of non-invasive ventilation. CONCLUSION Time series analysis of in-hospital data shows an ILD-related rise of hospitalizations, in-hospital mortality, and non-invasive ventilation. This emphasizes a growing importance of interstitial lung diseases for health-care systems. Strong seasonality is seen in these variables. Data therefore support previous studies of ILD exacerbation. More research on infectious causes and environmental factors is warranted.
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Affiliation(s)
- Daniel von der Beck
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany,
| | - Friedrich Grimminger
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.,Department of Pulmonology, Hochtaunus Clinic, Bad Homburg, Germany
| | - Werner Seeger
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany
| | - Andreas Günther
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.,Agaplesion Lung Clinic Waldhof Elgershausen, Greifensstein, Germany
| | - Benjamin Löh
- Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL), Giessen, Germany.,Department of Pulmonology, Hochtaunus Clinic, Bad Homburg, Germany
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Kershaw CD, Batra K, Torrealba JR, Terada LS. Characteristics and evaluation of acute exacerbations in chronic interstitial lung diseases. Respir Med 2021; 183:106400. [PMID: 33957435 DOI: 10.1016/j.rmed.2021.106400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 12/13/2020] [Accepted: 04/09/2021] [Indexed: 11/18/2022]
Abstract
Acute exacerbations of fibrosing interstitial lung disease (ILD) occur in both idiopathic pulmonary fibrosis (IPF) as well as non-IPF ILDs. An expert consensus definition has allowed for more frequent reporting of IPF exacerbations. The same is lacking for non-IPF ILD exacerbations. The incidence of non-IPF ILD exacerbations is likely less than in IPF, but the two entities share similar risk factors, such as increased frequency as physiologic derangements advance. The radiologic and histopathologic spectrum of acute ILD exacerbations extends from organizing pneumonia (OP) to the more treatment-refractory diffuse alveolar damage (DAD) pattern. Indeed, responsiveness to various therapies may depend on the relative components of these entities, favoring OP over DAD. There are no proven therapies for acute ILD exacerbations. Corticosteroids are a mainstay in any regimen although clear evidence of benefit does not exist. A variety of immunosuppressant agents have purported success in historical cohort studies - cyclophosphamide, cyclosporine A, and tacrolimus most commonly. Only one randomized controlled trial has been published, studying recombinant thrombomodulin for IPF exacerbation, but the primary outcome of survivor proportion at 90 days was not met. Other novel therapies for ILD exacerbations are still under investigation. The short and long-term prognosis of acute exacerbations of ILD is poor, especially in patients with IPF. Transplant referral should be considered early for both IPF as well as fibrosing non-IPF ILDs, given the unpredictability of the exacerbation event.
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Affiliation(s)
- Corey D Kershaw
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, UT Southwestern Medical Center, Dallas, TX, USA.
| | - Kiran Batra
- Department of Radiology and Division of Pulmonary and Critical Care Medicine, Department of Medicine, UT Southwestern Medical Center, Dallas, TX, USA
| | - Jose R Torrealba
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Lance S Terada
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, UT Southwestern Medical Center, Dallas, TX, USA
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Murakami Y, Sakamoto K, Okumura Y, Suzuki A, Mii S, Sato M, Yokoi T, Hashimoto N, Hasegawa Y. Acute Exacerbation of Pleuroparenchymal Fibroelastosis Secondary to Allogenic Hematopoietic Stem Cell Transplantation. Intern Med 2020; 59:2737-2743. [PMID: 32669500 PMCID: PMC7691016 DOI: 10.2169/internalmedicine.4995-20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
In this article, we report a case with pleuroparenchymal fibroelastosis (PPFE) following hematopoietic stem cell transplantation (HSCT) that developed acute respiratory failure with new bilateral ground glass opacity, which could not be explained by either a pulmonary infection, drug toxicity or extraparenchymal causes. Although combination therapy with multiple immunosuppressants was transiently effective, the patient died from a recurrent exacerbation. Autopsied lungs demonstrated diffuse alveolar damage superimposed on PPFE. There was no evidence of any coexisting interstitial pneumonia with the usual interstitial pneumonia (UIP) pattern. Our case suggests that acute exacerbation can occur in patients with post-HSCT PPFE, even when a coexisting UIP pattern is absent.
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Affiliation(s)
- Yasushi Murakami
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Koji Sakamoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Yuki Okumura
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Japan
| | - Atsushi Suzuki
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Shinji Mii
- Department of Pathology, Nagoya University Graduate School of Medicine, Japan
| | - Mitsuo Sato
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Japan
| | | | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
- Department of Respiratory Medicine, National Hospital Organization, Nagoya Medical Center, Japan
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Kato M, Yamada T, Kataoka S, Arai Y, Miura K, Ochi Y, Ihara H, Koyama R, Sasaki S, Takahashi K. Prognostic differences among patients with idiopathic interstitial pneumonias with acute exacerbation of varying pathogenesis: a retrospective study. Respir Res 2019; 20:287. [PMID: 31852459 PMCID: PMC6921398 DOI: 10.1186/s12931-019-1247-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/25/2019] [Indexed: 12/02/2022] Open
Abstract
Background Acute exacerbation of chronic fibrosing idiopathic interstitial pneumonias (AE-IIPs) is associated with a high mortality rate. In 2016, an international working group proposed a revised diagnostic criteria for AE-IIPs, suggesting that it be classified as idiopathic or triggered. Many factors are known to trigger AE-IIPs, including surgery, infection, and drugs. However, it is unknown which AE-IIPs triggers have a worse prognosis. We aimed to investigate the prognosis of patients with various clinical types of AE-IIPs, particularly infection-triggered, non-infection triggered, and idiopathic AE-IIPs. Methods We retrospectively collected data from 128 chronic fibrosing IIPs (CF-IIPs) patients who were hospitalized by respiratory failure between April 2009 and March 2019 at Juntendo University Hospital. Among these patients, we evaluated 79 patients who developed AE-IIPs and 21 who developed pneumonia superimposed on CF-IIPs. Patients with AE-IIPs were classified into three types: idiopathic, infection-triggered, and non-infection-triggered AE-IIPs. We analyzed differences in patient characteristics, examination findings; level of serum markers, results of pulmonary function, and radiological findings, prior treatment for baseline CF-IIPs, and prognosis. We then evaluated the risk factor for early death (death within 30 days from the onset of AE-IIPs) associated with AE-IIPs. Results Among the patients who developed AE-IIPs, 34 were characterized as having idiopathic, 25 were characterized as having infection-triggered, and 20 were categorized as having non-infection-triggered AE-IIPs. Survival time for pneumonia superimposed on IIPs was significantly longer than that for any AE-IIPs. Survival time for bacterial pneumonia superimposed on CF-IIPs was significantly longer than that for AE-IIPs (for each idiopathic and all triggered IIPs). Thereafter, survival time for infection-triggered was significantly longer than for idiopathic or non-infection-triggered AE-IIPs. The mortality rate was significantly lower in infection-triggered AE-IIPs than in other types of AE-IIPs. Furthermore, the incidence of infection-triggered AE-IIPs in winter was significantly higher than that in other seasons. Moreover, the clinical AE-IIPs types and radiological findings at AE-IIP onset were significant risk factors for AE-IIPs-induced early death. Conclusions Our findings suggest that patients with infection-triggered AE-IIPs can expect a better prognosis than can patients with other clinical types of AE-IIPs.
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Affiliation(s)
- Motoyasu Kato
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan.
| | - Tomoko Yamada
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Shunichi Kataoka
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Yuta Arai
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Keita Miura
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Yusuke Ochi
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Hiroaki Ihara
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Ryo Koyama
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Shinichi Sasaki
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
| | - Kazuhisa Takahashi
- Department of Respiratory Medicine, Juntendo University Graduate School of Medicine, 3-1-3, Hongo, Bunkyo-ku, Tokyo, 113-8431, Japan
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