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Yamakawa H, Oda T, Sugino K, Hirama T, Komatsu M, Katano T, Fukuda T, Takemura T, Kubota Y, Kishaba T, Norisue Y, Araya J, Ogura T. Proposed Clinical Algorithm for Pleuroparenchymal Fibroelastosis (PPFE). J Clin Med 2024; 13:3675. [PMID: 38999241 PMCID: PMC11242275 DOI: 10.3390/jcm13133675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/19/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
Pleuroparenchymal fibroelastosis (PPFE) is characterized by fibrosis involving the pleura and subpleural lung parenchyma, predominantly in the upper lobes. As PPFE appears to occur in patients with heterogeneous etiologies, the disease course is thus also heterogenous, with some patients showing rapid progression while others have slow progression. Therefore, it is very difficult to predict prognosis with PPFE. Needless to say, this problematic matter has influenced the treatment strategy of PPFE patients. In fact, until now no evidence has been shown for use in creating an appropriate management algorithm for PPFE. We speculate that "uncoordinated breathing" is the most important reason for dyspnea in PPFE patients. Because monitoring of physique and not just pulmonary function and radiological evaluation is also very important, particularly in PPFE patients, this review focused on the characteristics of PPFE through an overview of previous studies in this field, and we proposed an algorithm as precision medicine based on the current evidence. Multiple views by the pulmonologist are needed to standardize a clinical algorithm that is necessary to correctly assess PPFE patients under the premise of maintenance of physique by providing appropriate nutritional care and pulmonary rehabilitation.
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Affiliation(s)
- Hideaki Yamakawa
- Department of Respiratory Medicine, Saitama Red Cross Hospital, Saitama 330-8553, Japan
- Department of Respiratory Medicine, Tokyo Jikei University Hospital, Tokyo 105-8461, Japan
| | - Tsuneyuki Oda
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Yokohama 236-0051, Japan
| | - Keishi Sugino
- Department of Respiratory Medicine, Tsuboi Hospital, Fukushima 963-0197, Japan
| | - Takashi Hirama
- Department of Thoracic Surgery, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
- Division of Organ Transplantation, Tohoku University, Sendai 980-8574, Japan
| | - Masamichi Komatsu
- First Department of Internal Medicine, Shinshu University School of Medicine, Matsumoto 390-8621, Japan
| | - Takuma Katano
- Department of Respiratory Medicine and Allergology, Aichi Medical University, Nagakute 480-1195, Japan
| | - Taiki Fukuda
- Department of Radiology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Tamiko Takemura
- Department of Pathology, Kanagawa Cardiovascular and Respiratory Center, Yokohama 236-0051, Japan
| | - Yoshiaki Kubota
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo 113-0022, Japan
| | - Tomoo Kishaba
- Department of Respiratory Medicine, Okinawa Chubu Hospital, Okinawa 904-2293, Japan
| | - Yasuhiro Norisue
- Department of Emergency and Critical Care Medicine, Tokyo Bay Urayasu Ichikawa Medical Center, Chiba 279-0001, Japan
| | - Jun Araya
- Department of Respiratory Medicine, Tokyo Jikei University Hospital, Tokyo 105-8461, Japan
| | - Takashi Ogura
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Yokohama 236-0051, Japan
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Lucà S, Pagliuca F, Perrotta F, Ronchi A, Mariniello DF, Natale G, Bianco A, Fiorelli A, Accardo M, Franco R. Multidisciplinary Approach to the Diagnosis of Idiopathic Interstitial Pneumonias: Focus on the Pathologist's Key Role. Int J Mol Sci 2024; 25:3618. [PMID: 38612431 PMCID: PMC11011777 DOI: 10.3390/ijms25073618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/14/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Idiopathic Interstitial Pneumonias (IIPs) are a heterogeneous group of the broader category of Interstitial Lung Diseases (ILDs), pathologically characterized by the distortion of lung parenchyma by interstitial inflammation and/or fibrosis. The American Thoracic Society (ATS)/European Respiratory Society (ERS) international multidisciplinary consensus classification of the IIPs was published in 2002 and then updated in 2013, with the authors emphasizing the need for a multidisciplinary approach to the diagnosis of IIPs. The histological evaluation of IIPs is challenging, and different types of IIPs are classically associated with specific histopathological patterns. However, morphological overlaps can be observed, and the same histopathological features can be seen in totally different clinical settings. Therefore, the pathologist's aim is to recognize the pathologic-morphologic pattern of disease in this clinical setting, and only after multi-disciplinary evaluation, if there is concordance between clinical and radiological findings, a definitive diagnosis of specific IIP can be established, allowing the optimal clinical-therapeutic management of the patient.
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Affiliation(s)
- Stefano Lucà
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (F.P.); (A.R.); (M.A.)
| | - Francesca Pagliuca
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (F.P.); (A.R.); (M.A.)
| | - Fabio Perrotta
- Department of Translational Medical Science, Università degli Studi della Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (F.P.); (D.F.M.); (A.B.)
| | - Andrea Ronchi
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (F.P.); (A.R.); (M.A.)
| | - Domenica Francesca Mariniello
- Department of Translational Medical Science, Università degli Studi della Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (F.P.); (D.F.M.); (A.B.)
| | - Giovanni Natale
- Division of Thoracic Surgery, Università degli Studi della Campania “Luigi Vanvitelli”, Piazza Miraglia, 2, 80138 Naples, Italy; (G.N.); (A.F.)
| | - Andrea Bianco
- Department of Translational Medical Science, Università degli Studi della Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (F.P.); (D.F.M.); (A.B.)
| | - Alfonso Fiorelli
- Division of Thoracic Surgery, Università degli Studi della Campania “Luigi Vanvitelli”, Piazza Miraglia, 2, 80138 Naples, Italy; (G.N.); (A.F.)
| | - Marina Accardo
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (F.P.); (A.R.); (M.A.)
| | - Renato Franco
- Pathology Unit, Department of Mental and Physical Health and Preventive Medicine, Università degli Studi della Campania “Luigi Vanvitelli”, 80138 Naples, Italy; (S.L.); (F.P.); (A.R.); (M.A.)
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Piciucchi S, Fernades LS, Ravaglia C, Tomassetti S, Garo ML, Poletti V. "Gallia est omnis divisa in partes tres": Is it time to divide Pleuroparenchymal Fibroelastosis in three different forms? Pulmonology 2023; 29:550-554. [PMID: 37210339 DOI: 10.1016/j.pulmoe.2023.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/23/2023] [Accepted: 04/12/2023] [Indexed: 05/22/2023] Open
Affiliation(s)
- Sara Piciucchi
- Department of Radiology, GB Morgagni Pierantoni Hospital/University of Bologna, Italy.
| | | | - Claudia Ravaglia
- Pulmonology Unit, G.B. Morgagni Hospital/University of Bologna, Forlì, Italy
| | - Sara Tomassetti
- Department of Experimental & Clinical Medicine, University of Florence, Florence, Italy
| | - Maria Luisa Garo
- Università Campus Bio-medico di Roma, UOC di Cardiochirurgia, Rome, Italy
| | - Venerino Poletti
- Alma Mater Studiorum University of Bologna, DIMEC, Bologna, Italy; Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
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Gentili F, Di Martino V, Forestieri M, Mazzei F, Guerrini S, Bargagli E, Sisinni AG, Volterrani L, Mazzei MA. Pleuroparenchymal Fibroelastosis-like Lesions in Clinical Practice: A Rare Entity? Review of a Radiological Database. Diagnostics (Basel) 2023; 13:diagnostics13091627. [PMID: 37175018 PMCID: PMC10178180 DOI: 10.3390/diagnostics13091627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/29/2023] [Accepted: 04/04/2023] [Indexed: 05/15/2023] Open
Abstract
Background: Pleuroparenchymal Fibroelastosis (PPFE) is a rare disease that consists of elastofibrosis that involves the pleura and subpleural lung parenchyma; it is an unusual pulmonary disease with unique clinical, radiological and pathological characteristics. According to recent studies, PPFE may not be a definite disease but a form of chronic lung injury. The aim of this retrospective study is to determine the incidence and to evaluate the distribution, severity and progression of this radiological entity on high-resolution CT (HRCT) exams of the chest, performed in routine clinical practice. In total, 1514 HRCT exams performed in the period January 2016-June 2018 were analyzed. For each exam, the presence of PPFE was evaluated and a quantitative score was assigned (from 0 to 7 points, based on the maximum depth of fibrotic involvement of the parenchyma). When available, two exams with a time interval of at least 6 months were compared for each patient in order to evaluate progression (defined as the increase in the disease score). Patients were divided into different groups according to exposure and their associated diseases. Statistical analysis was performed by using the Wilcoxon test and Kruskal-Wallis test. Results: PPFE was detected in 174 out of 1514 patients (11.6%), with a mean score of 6.1 ± 3.9 (range 1-14). In 106 out of 174 patients (60.9%), a previous CT scan was available and an evolution of PPFE was detected in 19 of these (11.5%). Among these 19 patients with worsening PPFE, 4 had isolated PPFE that was associated with chronic exposure or connective tissue disorders, and the other 15 had an associated lung disease and/or a chronic exposure. In this group, it was found that the ventral segments of the upper lobes, fissures and apical segments of the lower lobes had a greater statistically significant involvement in the progression of the disease compared to the non-progressive group. In 16 of 174 patients (9.2%, 7 of which belonged to the radiological progression group) a biopsy through video-assisted thoracoscopic surgery or apicoectomy confirmed PPFE. Conclusion: PPFE-like lesions are not uncommon on HRCT exams in routine clinical practice, and are frequently found in patients with different forms of chronic lung injury. Further studies are necessary to explain why the disease progresses in some cases, while in most, it remains stationary over time.
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Affiliation(s)
- Francesco Gentili
- Diagnostic Imaging, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
| | - Vito Di Martino
- Diagnostic Imaging, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
| | | | - Francesco Mazzei
- Diagnostic Imaging, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
| | - Susanna Guerrini
- Diagnostic Imaging, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
| | - Elena Bargagli
- Respiratory Diseases and Lung Transplant Unit, Department of Medical and Surgical Sciences and Neurosciences, University of Siena, 53100 Siena, Italy
| | | | - Luca Volterrani
- Department of Radiological Sciences, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
| | - Maria Antonietta Mazzei
- Department of Radiological Sciences, Azienda Ospedaliera Universitaria Senese, 53100 Siena, Italy
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Buschulte K, Cottin V, Wijsenbeek M, Kreuter M, Diesler R. The world of rare interstitial lung diseases. Eur Respir Rev 2023; 32:32/167/220161. [PMID: 36754433 PMCID: PMC9910344 DOI: 10.1183/16000617.0161-2022] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 12/21/2022] [Indexed: 02/10/2023] Open
Abstract
The world of rare interstitial lung diseases (ILDs) is diverse and complex. Diagnosis and therapy usually pose challenges. This review describes a selection of rare and ultrarare ILDs including pulmonary alveolar proteinosis, pulmonary alveolar microlithiasis and pleuroparenchymal fibroelastosis. In addition, monogenic ILDs or ILDs in congenital syndromes and various multiple cystic lung diseases will be discussed. All these conditions are part of the scope of the European Reference Network on rare respiratory diseases (ERN-LUNG). Epidemiology, pathogenesis, diagnostics and treatment of each disease are presented.
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Affiliation(s)
- Katharina Buschulte
- Center for Interstitial and Rare Lung Diseases, Thoraxklinik, University of Heidelberg, German Center for Lung Research (DZL), ERN-LUNG, Heidelberg, Germany
| | - Vincent Cottin
- National Reference Centre for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, UMR 754, Claude Bernard University Lyon 1, ERN-LUNG, Lyon, France
| | - Marlies Wijsenbeek
- Center for Interstitial Lung Diseases and Sarcoidosis, Department of Respiratory Medicine, Erasmus MC-University Medical Center, ERN-LUNG, Rotterdam, The Netherlands
| | - Michael Kreuter
- Center for Interstitial and Rare Lung Diseases, Thoraxklinik, University of Heidelberg, German Center for Lung Research (DZL), ERN-LUNG, Heidelberg, Germany
| | - Rémi Diesler
- National Reference Centre for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, UMR 754, Claude Bernard University Lyon 1, ERN-LUNG, Lyon, France
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Pleuroparenchymal Fibroelastosis: A Review with a Focus on a Non-Infectious Complications after Hematopoietic Stem Cell Transplant. Biomedicines 2023; 11:biomedicines11030924. [PMID: 36979903 PMCID: PMC10046474 DOI: 10.3390/biomedicines11030924] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/19/2023] Open
Abstract
Pleuroparenchymal fibroelastosis (PPFE) is a rare disease that is currently classified as an idiopathic interstitial pneumonia. Although originally described as an idiopathic disease, PPFE has now been identified as a rare complication following hematopoietic stem cell transplant (HSCT). Unlike other pulmonary complications after HSCT, PPFE occurs very late after transplant. Etiologies for PPFE after HSCT remain to be fully established. Infections and adverse effects to alkylating chemotherapy have been suggested as possible causes. In several cases, there is an association of PPFE with bronchiolitis obliterans syndrome after HSCT, suggesting that PPFE may be another manifestation of pulmonary chronic graft versus host disease after HSCT. Algorithms have been designed to assist in confirming a diagnosis of PPFE without the need for a surgical lung biopsy, however at present, no biomarker is established for the diagnosis or to predict the progression of disease. Presently, there is no current therapy for PPFE, but fortunately the disease progresses slowly in most patients.
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Clinical features of idiopathic pleuroparenchymal fibroelastosis with progressive phenotype showing a decline in forced vital capacity. Respir Investig 2023; 61:210-219. [PMID: 36773509 DOI: 10.1016/j.resinv.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/12/2022] [Accepted: 01/06/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND Idiopathic pleuroparenchymal fibroelastosis (IPPFE) is heterogeneous, with some patients showing a progressive decline in forced vital capacity (FVC). However, the clinical features of these cases with progressive phenotypes remain unknown. METHODS This retrospective study included 48 patients diagnosed with IPPFE who underwent longitudinal pulmonary function tests at our institution from 2005 to 2021. The progressive phenotype was defined as a relative decline of ≥10% in %FVC within two years from diagnosis of IPPFE, and its clinical features were evaluated. RESULTS Of the 48 patients, 23 (47.9%) were classified as progressive IPPFE. They were significantly older with a higher rate of dyspnea, fine crackles on chest auscultation, lower-lobe usual interstitial pneumonia (UIP) pattern on high-resolution computed tomography, and lower %FVC at diagnosis than non-progressive IPPFE. Additionally, progressive IPPFE had a significantly higher rate of long-term oxygen therapy requirement, the incidence of pneumothorax, and weight loss after diagnosis, which showed worse survival than non-progressive IPPFE. The relative decline in %FVC and weight loss showed a significant positive correlation. Multivariate analysis revealed that lower body mass index tended to predict early progression, and the coexistence of lower-lobe UIP pattern was significantly associated with early progression. A decline in %FVC was an independent poor prognostic factor in IPPFE. CONCLUSIONS With a progressive decline in %FVC, IPPFE often has an advanced stage at diagnosis and lower-lobe UIP pattern and is associated with weight loss and worse survival.
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Matsumura T, Makino T, Yagisawa M, Ishige M, Akimoto Y, Ito K, Anami Y, Kono M. Acute exacerbation of pleuroparenchymal fibroelastosis with lower lobe usual interstitial pneumonia: An autopsy case. Respir Med Case Rep 2023; 43:101846. [PMID: 37077237 PMCID: PMC10106554 DOI: 10.1016/j.rmcr.2023.101846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/24/2023] [Accepted: 04/06/2023] [Indexed: 04/21/2023] Open
Abstract
An 87-year-old man presented with dyspnea. Computed tomography revealed progressive subpleural consolidation in the apex, reticular shadows in the lower lobes, and bilateral ground glass opacifications. He died of respiratory failure on day 3. The post-mortem examination showed exudative stage diffuse alveolar damage and pulmonary edema. Intraalveolar collagenous fibrosis and subpleural elastosis were observed in the upper lobes, accompanied by interlobular septal and pleural thickening and lung architecture remodeling in the lower lobes. He was diagnosed with acute exacerbation of pleuroparenchymal fibroelastosis with lower lobe usual interstitial pneumonia, which can be fatal.
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Affiliation(s)
- Takuma Matsumura
- Department of Respiratory Medicine, Tokyo Rosai Hospital, 4-13-21, Ohmori-Minami, Ohta-ku, Tokyo, Japan
- Corresponding author.
| | - Takashi Makino
- Department of Respiratory Surgery, Tokyo Rosai Hospital, 4-13-21, Ohmori-Minami, Ohta-ku, Tokyo, Japan
| | - Marie Yagisawa
- Department of Respiratory Medicine, Tokyo Rosai Hospital, 4-13-21, Ohmori-Minami, Ohta-ku, Tokyo, Japan
| | - Masaki Ishige
- Department of Respiratory Medicine, Tokyo Rosai Hospital, 4-13-21, Ohmori-Minami, Ohta-ku, Tokyo, Japan
| | - Yuto Akimoto
- Department of Respiratory Medicine, Tokyo Rosai Hospital, 4-13-21, Ohmori-Minami, Ohta-ku, Tokyo, Japan
| | - Kosuke Ito
- Department of Respiratory Medicine, Tokyo Rosai Hospital, 4-13-21, Ohmori-Minami, Ohta-ku, Tokyo, Japan
| | - Yoichi Anami
- Department of Respiratory Surgery, Tokyo Rosai Hospital, 4-13-21, Ohmori-Minami, Ohta-ku, Tokyo, Japan
| | - Masakazu Kono
- Department of Respiratory Medicine, Tokyo Rosai Hospital, 4-13-21, Ohmori-Minami, Ohta-ku, Tokyo, Japan
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Aono Y, Hozumi H, Kono M, Hashimoto D, Nakamura H, Yokomura K, Imokawa S, Shirai M, Akahori D, Inoue Y, Mori K, Karayama M, Suzuki Y, Furuhashi K, Enomoto N, Fujisawa T, Nakamura Y, Inui N, Suda T. Prognostic significance of radiological pleuroparenchymal fibroelastosis in Mycobacterium aviumcomplex lung disease: a multicentre retrospective cohort study. Thorax 2022:thorax-2022-219116. [DOI: 10.1136/thorax-2022-219116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 10/18/2022] [Indexed: 11/13/2022]
Abstract
BackgroundMycobacterium aviumcomplex (MAC) causes chronic respiratory infectious diseases with diverse clinical features and prognoses. Pleuroparenchymal fibroelastosis (PPFE) is a rare disease characterised by pleural fibrosis with subjacent intra-alveolar fibrosis and alveolar septal elastosis, with unique chest high-resolution CT (HRCT) features (radiological PPFE). An association between recurrent respiratory infections and PPFE formation has been hypothesised; however, the clinical significance of PPFE in MAC lung disease remains unclear.MethodsThis retrospective, multicentre study investigated the prevalence of radiological PPFE in patients with MAC lung disease and its association with clinical features and outcomes. Radiological PPFE was diagnosed on the basis of HRCT findings. Prognostic factors were identified using Cox proportional hazards and Fine-Gray models.ResultsOf 850 consecutive patients with definite MAC lung disease, 101 (11.9%) exhibited radiological PPFE. Patients with radiological PPFE had unique characteristics, such as lower body mass index, lower survival rate (5-year cumulative survival rate, 63.1% vs 91.7%; p<0.001) and a higher incidence of respiratory-related death (5-year cumulative incidence, 31.1% vs 3.6%; p<0.001), than those without radiological PPFE. In the multivariable analysis, the presence of radiological PPFE was independently associated with all-cause mortality (adjusted HR, 4.78; 95% CI, 2.87 to 7.95; p<0.001) and respiratory-related death (adjusted HR, 3.88; 95% CI, 2.14 to 7.01; p<0.001).InterpretationThis large-scale study demonstrated that in patients with MAC lung disease, radiological PPFE was common, a phenotype associated with unique clinical features and poor prognosis, particularly respiratory-related death. The specific management of this subgroup should be established.
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Cottin V, Si-Mohamed S, Diesler R, Bonniaud P, Valenzuela C. Pleuroparenchymal fibroelastosis. Curr Opin Pulm Med 2022; 28:432-440. [PMID: 35855575 DOI: 10.1097/mcp.0000000000000907] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
PURPOSE OF REVIEW Pleuroparenchymal fibroelastosis (PPFE) is a clinico-radiologic-pathologic interstitial lung disease (ILD) characterized by fibrosis that has upper lobe and subpleural predominance, involving both the visceral pleura and the subjacent subpleural lung parenchyma, and comprises dense fibroelastic changes with prominent elastosis of the alveolar walls together with fibrous thickening of the visceral pleura. The goal of this review is to summarize the state-of-the-art understanding in PPFE. RECENT FINDINGS PPFE was described in an increasing number of conditions. The course of disease is heterogeneous. Idiopathic PPFE, cases associated with telomerase-related gene mutations, cases related to a history of chemotherapy, and cases combining PPFE with a pattern of usual interstitial pneumonia, may have a particularly poor prognosis. Well-conducted retrospective studies identified marked PPFE features in approximately 10% of patients with idiopathic pulmonary fibrosis, 11% of patients with systemic sclerosis-associated ILD, 6.5% of patients with rheumatoid arthritis-associated ILD, and 23% of patients with hypersensitivity pneumonitis. Drug therapy has not been evaluated prospectively. A small retrospective study suggests that nintedanib may slow disease progression. However, whether the efficacy of antifibrotics is comparable in PPFE and in other forms of progressive pulmonary fibrosis warrants further evaluation. SUMMARY Accumulating data indicate that PPFE features are associated with poor prognosis in fibrosing ILDs. Further research on the management of PPFE is warranted.
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Affiliation(s)
- Vincent Cottin
- Department of Respiratory Medicine, National Reference Centre for Rare Pulmonary Diseases
| | - Salim Si-Mohamed
- Department of Thoracic Imaging, Louis Pradel Hospital, Hospices Civils de Lyon, UMR 754, Claude Bernard University Lyon 1, Lyon
| | - Rémi Diesler
- Department of Respiratory Medicine, National Reference Centre for Rare Pulmonary Diseases
| | - Philippe Bonniaud
- Constitutive Reference Center for Rare Pulmonary Diseases, Department of Pulmonary Medicine and Intensive Care Unit, Inserm U1231, University of Bourgogne-Franche Comté, Dijon, France
| | - Claudia Valenzuela
- Department of Respiratory Medicine, Hospital universitario de la Princesa, Universitad autónoma de Madrid, Madrid, Spain
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Muto Y, Sekine A, Hagiwara E, Komatsu S, Baba T, Oda T, Tabata E, Sakayori M, Fukui K, Iwasawa T, Takemura T, Misumi T, Ogura T. Clinical characteristics of pulmonary hypertension in patients with pleuroparenchymal fibroelastosis. Respir Investig 2022; 60:543-550. [PMID: 35387760 DOI: 10.1016/j.resinv.2022.02.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 02/18/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND This study aimed to investigate the clinical characteristics and prognosis of patients with pleuroparenchymal fibroelastosis (PPFE) and pulmonary hypertension (PH). METHODS We retrospectively analyzed the data of patients who were diagnosed with PPFE and underwent transthoracic echocardiography (TTE) for the evaluation of their right heart systems within 3 months of their first visit between 2011 and 2018. Patients were divided into the PH and non-PH groups based on their peak tricuspid regurgitation velocity (TRV) on TTE (cutoff, 2.8 m/s). The clinical characteristics of PH and association between PH and survival among patients with PPFE were investigated. RESULTS In total, 83 patients were enrolled. Sixteen (19.3%) patients were included in the PH group. The PH group had a lower body mass index, percent predicted forced vital capacity (FVC), 6-min walk distance, and partial pressure of arterial oxygen than the non-PH group. There was no significant difference in the presence of usual interstitial pneumonia patterns in the lower lobes between the two groups. The survival period was significantly shorter in the PH group than in the non-PH group (median survival 16.3 versus 50.2 months, log-rank p < 0.001). The multivariate Cox proportional hazard model showed that male sex (hazard ratio [HR] = 4.83, p < 0.001), Krebs von den Lungen-6 (KL-6) > 550 U/mL (HR = 3.48, p = 0.005), %FVC < 50% (HR = 3.04, p = 0.028), and peak TRV > 2.8 m/s (HR = 3.26, p = 0.038) were independently associated with poor survival. CONCLUSIONS PH was not rare in patients with PPFE. Male sex, increased KL-6, lower FVC, and PH were independently associated with poor survival in patients with PPFE.
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Affiliation(s)
- Yutaka Muto
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan.
| | - Akimasa Sekine
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Eri Hagiwara
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Shigeru Komatsu
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Tomohisa Baba
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Tsuneyuki Oda
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Erina Tabata
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Masashi Sakayori
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Kazuki Fukui
- Department of Cardiology, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Tae Iwasawa
- Department of Radiology, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Tamiko Takemura
- Department of Pathology, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
| | - Toshihiro Misumi
- Department of Biostatistics, School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa-ku, Yokohama, 236-0004, Japan
| | - Takashi Ogura
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, 6-16-1 Tomioka-higashi, Kanazawa-ku, Yokohama, 236-0051, Japan
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12
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Ikeda T, Kinoshita Y, Miyamura T, Ueda Y, Yoshida Y, Kushima H, Ishii H. Platythorax progresses with lung involvement in pleuroparenchymal fibroelastosis. Respir Investig 2021; 60:293-299. [PMID: 34732291 DOI: 10.1016/j.resinv.2021.09.010] [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: 09/02/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 01/17/2023]
Abstract
BACKGROUND Patients diagnosed with pleuroparenchymal fibroelastosis (PPFE) exhibit unique clinical features, including upper lobe-dominant lung involvement and platythorax (or flattened thoracic cage). Although platythorax have been shown to be a sign of disease progression, the temporal relationship between the progression of platythorax and the extent of lung involvement has not been closely investigated. METHODS We retrospectively investigated patients diagnosed with PPFE, who did not exhibit fibrotic lesions other than PPFE in the lower lobes. We estimated the fibrosis score, which is a visual score indicating the percentage of lung parenchyma occupied by the disease on computed tomography images selected every 2 cm from the lung apex to the lung base, and the flat chest index (the ratio of the anteroposterior diameter of the thoracic cage to the transverse diameter of the thoracic cage). Additionally, we investigated serial changes in the flat chest index and fibrosis score. RESULTS A total of 29 patients were included in this study. The fibrosis score was found to be weakly and inversely correlated with forced vital capacity %predicted at the diagnosis (r = -0.40, p = 0.038). Furthermore, the annual changes in the flat chest index and fibrosis score was found to be moderately and inversely correlated (r = -0.663, p = 0.0037). CONCLUSIONS These results indicate that there is a causal relationship between the progression of fibroelastosis and that of platythorax in patients with PPFE.
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Affiliation(s)
- Takato Ikeda
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Yoshiaki Kinoshita
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Takuto Miyamura
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Yusuke Ueda
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Yuji Yoshida
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Hisako Kushima
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Hiroshi Ishii
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
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Kinoshita Y, Ikeda T, Miyamura T, Ueda Y, Yoshida Y, Kushima H, Fujita M, Ogura T, Watanabe K, Ishii H. A proposed prognostic prediction score for pleuroparenchymal fibroelastosis. Respir Res 2021; 22:215. [PMID: 34330287 PMCID: PMC8400711 DOI: 10.1186/s12931-021-01810-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/17/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Clinical course of pleuroparenchymal fibroelastosis (PPFE) shows considerable variation among patients, but there is no established prognostic prediction model for PPFE. METHODS The prediction model was developed using retrospective data from two cohorts: our single-center cohort and a nationwide multicenter cohort involving 21 institutions. Cox regression analyses were used to identify prognostic factors. The total score was defined as the weighted sum of values for the selected variables. The performance of the prediction models was evaluated by Harrell's concordance index (C-index). We also examined the usefulness of the gender-age-physiology (GAP) model for predicting the prognosis of PPFE patients. RESULTS We examined 104 patients with PPFE (52 cases from each cohort). In a multivariate Cox analysis, a lower forced vital capacity (FVC [defined as FVC < 65%]; hazard ratio [HR], 2.23), a history of pneumothorax (HR, 3.27), the presence of a lower lobe interstitial lung disease (ILD) (HR, 2.31), and higher serum Krebs von den Lungen-6 (KL-6) levels (> 550 U/mL, HR, 2.56) were significantly associated with a poor prognosis. The total score was calculated as 1 × (FVC, < 65%) + 1 × (history of pneumothorax) + 1 × (presence of lower lobe ILD) + 1 × (KL-6, > 550 U/mL). PPFE patients were divided into three groups based on the prognostic score: stage I (0-1 points), stage II (2 points), and stage III (3-4 points). The survival rates were significantly different in each stage. The GAP stage was significantly associated with the prognosis of PPFE, but no difference was found between moderate (stage II) and severe (stage III) disease. Our new model for PPFE patients (PPFE Prognosis Score) showed better performance in the prediction of mortality in comparison to the GAP model (C-index of 0.713 vs. 0.649). CONCLUSIONS Our new model for PPFE patients could be useful for predicting their prognosis.
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Affiliation(s)
- Yoshiaki Kinoshita
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Takato Ikeda
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Takuto Miyamura
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Yusuke Ueda
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Yuji Yoshida
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Hisako Kushima
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Masaki Fujita
- Department of Respiratory Medicine, Fukuoka University Hospital, Fukuoka, Japan
| | - Takashi Ogura
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Kanagawa, Japan
| | - Kentaro Watanabe
- Department of Respiratory Medicine, Nishi Fukuoka Hospital, Fukuoka, Japan
| | - Hiroshi Ishii
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan.
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Ricoy J, Suárez-Antelo J, Antúnez J, Martínez de Alegría A, Ferreiro L, Toubes ME, Casal A, Valdés L. Pleuroparenchymal fibroelastosis: Clinical, radiological and histopathological features. Respir Med 2021; 191:106437. [PMID: 33992495 DOI: 10.1016/j.rmed.2021.106437] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/10/2021] [Accepted: 04/21/2021] [Indexed: 01/24/2023]
Abstract
Pleuroparenchymal fibroelastosis (PPFE) is a rare, generally idiopathic form of interstitial pneumonia with unique clinical, radiological and histopathological features. It is named after the presence of upper lobe pleural and subjacent parenchymal fibrosis, with accompanying elastic fibers. Although it is usually an idiopathic disease, it has been linked to other co-existent diseases. Diagnostic suspicion of PPFE is based on the identification of typical abnormalities on chest CT scan, which are prevailingly located in the upper lobes, adjacent to the apex of the lungs. Diagnosis can be confirmed by histological analysis, although biopsy is not always feasible. The disease is generally progressive, but not uniformly. The course of the disease is frequently slow and involves a progressive loss of upper lobe volume, which results in platythorax, associated with a significant reduction of body mass. PPFE concomitant to other interstitial lung diseases is associated with a poorer prognosis. The disease occasionally progresses rapidly causing irreversible respiratory insufficiency, which leads to death. Currently, there is no effective pharmacological therapy available, and lung transplantation is the best therapeutic option. The purpose of this review is to draw the attention to PPFE, describe its clinical, radiological and histopathological features, analyze its diagnostic criteria, and provide an update on the management of the disease.
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Affiliation(s)
- Jorge Ricoy
- Department of Pulmonology, Complejo Hospitalario Clínico-Universitario de Santiago, Santiago de Compostela, Spain.
| | - Juan Suárez-Antelo
- Department of Pulmonology, Complejo Hospitalario Clínico-Universitario de Santiago, Santiago de Compostela, Spain.
| | - José Antúnez
- Department of Pathology, Complejo Hospitalario Clínico-Universitario de Santiago, Santiago de Compostela, Spain.
| | - Anxo Martínez de Alegría
- Department of of Radiology, Complejo Hospitalario Clínico-Universitario de Santiago, Santiago de Compostela, Spain.
| | - Lucía Ferreiro
- Department of Pulmonology, Complejo Hospitalario Clínico-Universitario de Santiago, Santiago de Compostela, Spain; Multidisciplinary Research Group on Pulmonology, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain.
| | - María Elena Toubes
- Department of Pulmonology, Complejo Hospitalario Clínico-Universitario de Santiago, Santiago de Compostela, Spain.
| | - Ana Casal
- Department of Pulmonology, Complejo Hospitalario Clínico-Universitario de Santiago, Santiago de Compostela, Spain.
| | - Luis Valdés
- Department of Pulmonology, Complejo Hospitalario Clínico-Universitario de Santiago, Santiago de Compostela, Spain; Multidisciplinary Research Group on Pulmonology, Health Research Institute of Santiago de Compostela (IDIS), Santiago de Compostela, Spain.
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15
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Prognostic and Clinical Value of Cluster Analysis in Idiopathic Pleuroparenchymal Fibroelastosis Phenotypes. J Clin Med 2021; 10:jcm10071498. [PMID: 33916508 PMCID: PMC8038478 DOI: 10.3390/jcm10071498] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/26/2021] [Accepted: 04/01/2021] [Indexed: 02/07/2023] Open
Abstract
Idiopathic pleuroparenchymal fibroelastosis (PPFE) is a distinctive interstitial pneumonia with upper lobe predominance that shows unique morphological features among idiopathic interstitial pneumonias (IIPs). Affected patients have a variety of clinical presentations with heterogeneous clinical courses. Cluster analysis is a valuable tool for identifying distinct clinical phenotypes under heterogeneous conditions. This study aimed to identify the phenotypes of patients with idiopathic PPFE. Using cluster analysis, novel PPFE phenotypes were identified among subjects from our multicenter cohort, and outcomes were stratified according to phenotypic clusters. Among the subjects with baseline data (N = 84), four clusters were identified. Cluster 1 included younger male subjects with coexisting non-UIP-like patterns. Cluster 2 included elderly female nonsmokers with low body mass index (BMI). Cluster 3 included elderly male smokers with a coexisting IP-like pattern. Cluster 4 included younger male smokers without lower lobe lesions. Patients in cluster 3 had significantly worse survival outcomes than those in clusters 1, 2, and 4 (p < 0.001, p = 0.0041, and p = 0.0155, respectively). Among idiopathic PPFE patients, cluster analysis using baseline characteristics identified four distinct clinical phenotypes that might predict survival outcomes.
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16
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Shiiya H, Sato M. Lung Transplantation for Pleuroparenchymal Fibroelastosis. J Clin Med 2021; 10:jcm10050957. [PMID: 33804467 PMCID: PMC7957581 DOI: 10.3390/jcm10050957] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/20/2021] [Accepted: 02/20/2021] [Indexed: 12/26/2022] Open
Abstract
Pleuroparenchymal fibroelastosis (PPFE), a new disease entity associated with interstitial pneumonia, is characterized by fibrosis and elastosis involving the pleura and subpleural lung parenchyma, predominantly in the upper lobe. As the awareness of this disease entity has increased, many studies have revealed the prevalence and incidence, clinical and pathological characteristics, and disease course of PPFE. Patients with PPFE reportedly have several unique clinical characteristics—including an extremely low body mass index with a slender body and chest wall deformity, known as “flat chest”. As this disease progresses, shrinking of the lungs often causes life-threatening complications, such as pneumothorax, and associated air leak syndrome. Lung transplantation is considered the only effective treatment for patients with advanced PPFE; however, little is known about the influences of the characteristics of PPFE on the outcome of lung transplantation. This review focuses on the unique clinicopathologic characteristics of PPFE and associated outcomes of lung transplantation for these patients.
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Affiliation(s)
- Haruhiko Shiiya
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan;
- Department of Cardiovascular and Thoracic Surgery, Hokkaido University Graduate School of Medicine, Kita 15 Nishi 7, Kita-ku, Sapporo 060-8638, Hokkaido, Japan
| | - Masaaki Sato
- Department of Thoracic Surgery, The University of Tokyo Graduate School of Medicine, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan;
- Correspondence: ; Tel.: +81-3-3815-5411; Fax: +81-3-5800-9156
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Lee JH, Chae EJ, Song JS, Kim M, Song JW. Pleuroparenchymal fibroelastosis in Korean patients: clinico-radiologic-pathologic features and 2-year follow-up. Korean J Intern Med 2021; 36:S132-S141. [PMID: 32088939 PMCID: PMC8009146 DOI: 10.3904/kjim.2019.303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 12/17/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND/AIMS Pleuroparenchymal fibroelastosis (PPFE) is a type of rare idiopathic interstitial pneumonia that is characterized by predominantly upper lobe involvement with pleural fibrosis and subjacent parenchymal fibrosis. This study aimed to determine the clinico-radiologic-pathologic features and prognosis of Korean patients with PPFE. METHODS A total of 26 patients who were confirmed to have PPFE by lung biopsy, were included, and their clinico-radiologic-pathologic findings were retrospectively analyzed. RESULTS The mean follow-up period was 23.8 months, and the mean age of the patients was 62.5 years; 61.5% were men and 50% were smokers. Cough and dyspnea were the most frequent presenting symptoms, and restrictive pattern was the most common observation in lung function. In 84.6% of the subjects, lower lobe involvement was found on chest computed tomography, and the usual interstitial pneumonia (UIP) pattern was the most common (59.1%). Among patients whose lower lobe was biopsied (n = 13), the UIP pattern was the most common (46.2%). Patients with lower lobe involvement were older and walked a shorter distance during the 6-minute walk test, compared to those without. Spontaneous pneumothorax was a common complication (26.9%), and 15.4% of the patients died mostly due to pneumonia (100%). The 1- and 3-year survival rates were 90.2% and 84.5%, respectively. CONCLUSION Clinical features of Korean patients with PPFE were similar to those reported previously; however, lower lobe involvement was more frequent. During follow-up, one-fourth of the patients experienced pneumothorax and one-fifth died from pneumonia.
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Affiliation(s)
- Jae Ha Lee
- Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine, Inje niversity Haeundae Paik Hospital, Busan, Korea
| | - Eun Jin Chae
- Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Joon Seon Song
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Miae Kim
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jin Woo Song
- Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Correspondence to Jin Woo Song, M.D. Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea Tel: +82-2-3010-3993 Fax: +82-2-3010-6968 E-mail:
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18
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Sugino K, Ono H, Shimizu H, Kurosawa T, Matsumoto K, Ando M, Mori K, Tsuboi E, Homma S, Kishi K. Treatment with antifibrotic agents in idiopathic pleuroparenchymal fibroelastosis with usual interstitial pneumonia. ERJ Open Res 2021; 7:00196-2020. [PMID: 33681342 PMCID: PMC7917230 DOI: 10.1183/23120541.00196-2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 11/05/2020] [Indexed: 11/10/2022] Open
Abstract
Background There are no established therapeutic options available for idiopathic pleuroparenchymal fibroelastosis (IPPFE) apart from supportive care and lung transplantation. Furthermore, it is known that IPPFE with a usual interstitial pneumonia (UIP) pattern and lower lobe predominance is a disease entity distinct from idiopathic pulmonary fibrosis (IPF). To our knowledge, few studies are available that report on the efficacy of antifibrotic agents for IPPFE with UIP. Aim The aim of this study was to compare the efficacy of antifibrotic agents between IPPFE with UIP and typical IPF in real-world clinical practice. Patients and methods A retrospective analysis was performed on the medical records of all patients at two interstitial lung disease centres. Sixty-four patients were diagnosed as having IPPFE with UIP and 195 patients were diagnosed with typical IPF. We compared the efficacy of antifibrotic agents between these two groups. Results Survival time was significantly shorter in the patients with IPPFE with UIP. Some 125 patients were administered antifibrotic agents for over 6 months (34 with IPPFE with UIP and 91 with typical IPF). Reduced forced vital capacity (FVC) 6 months after treatment with antifibrotic agents was significantly greater in the IPPFE with UIP group than in those in the typical IPF group. Moreover, the change in % predicted FVC was significantly greater during the follow-up in patients with IPPFE with UIP compared with those with typical IPF. Conclusions The efficacy of antifibrotic agents was limited in patients with IPPFE with UIP. Thus, IPPFE with UIP remains a fatal and progressive disease. This study demonstrated that patients with IPPFE with UIP have a poorer prognosis than those with typical IPF because these patients were intractable to treatment with antifibrotic agentshttps://bit.ly/38LbAKD
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Affiliation(s)
- Keishi Sugino
- Dept of Respiratory Medicine, Tsuboi Hospital, Koriyama city, Fukushima, Japan.,Dept of Respiratory Medicine, Toho University Omori Medical Center, Tokyo, Japan
| | - Hirotaka Ono
- Dept of Respiratory Medicine, Tsuboi Hospital, Koriyama city, Fukushima, Japan
| | - Hiroshige Shimizu
- Dept of Respiratory Medicine, Toho University Omori Medical Center, Tokyo, Japan
| | - Takeyuki Kurosawa
- Dept of Respiratory Medicine, Toho University Omori Medical Center, Tokyo, Japan
| | - Keiko Matsumoto
- Dept of Radiology, Toho University Omori Medical Center, Tokyo, Japan
| | - Masahiro Ando
- Dept of Respiratory Medicine, Tsuboi Hospital, Koriyama city, Fukushima, Japan
| | - Kiyoshi Mori
- Dept of Respiratory Medicine, Tsuboi Hospital, Koriyama city, Fukushima, Japan
| | - Eiyasu Tsuboi
- Dept of Respiratory Medicine, Tsuboi Hospital, Koriyama city, Fukushima, Japan
| | - Sakae Homma
- Dept of Advanced and Integrated Interstitial Lung Diseases Research, School of Medicine, Toho University, Tokyo, Japan
| | - Kazuma Kishi
- Dept of Respiratory Medicine, Toho University Omori Medical Center, Tokyo, Japan
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Comparison of Clinical Characteristics and Outcomes between Idiopathic and Secondary Pleuroparenchymal Fibroelastosis. J Clin Med 2021; 10:jcm10040846. [PMID: 33670776 PMCID: PMC7922642 DOI: 10.3390/jcm10040846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 12/14/2022] Open
Abstract
Background: Pleuroparenchymal fibroelastosis (PPFE) is a unique clinical, radiologic, and histopathologic entity for which several potential etiologies have been reported recently. However, there has been no comprehensive study of secondary PPFE. Objective: Assessment of the clinical characteristics, outcomes, and prognostic factors of secondary and idiopathic PPFE. Methods: We retrospectively reviewed the medical records of consecutive PPFE patients between January 1999 and December 2018. We identified 132 idiopathic PPFE patients and 32 secondary PPFE patients. Results: The incidence of interstitial lung disease (ILD) pattern different from the usual interstitial pneumonia (UIP) pattern in the lower lobes was higher in secondary PPFE patients (38.5%) than in idiopathic PPFE patients (61.5%, p = 0.02). The idiopathic and secondary PPFE groups did not differ significantly in terms of laboratory data, respiratory complications, and survival (median: 5.0 years vs. 4.1 years, p = 0.95). The presence of UIP pattern was independently associated with increased mortality in multivariate analyses in idiopathic PPFE patients, but not in secondary PPFE patients. Conclusions: The frequency and prognostic impact of UIP-pattern ILD differed between idiopathic and secondary PPFE patients. Lung transplantation should be considered in secondary PPFE patients with low diffusing capacity of the lungs for carbon monoxide (DLCO) regardless of lower-lobe ILD pattern.
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20
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Kono M, Nakamura Y, Enomoto Y, Yasui H, Hozumi H, Karayama M, Suzuki Y, Furuhashi K, Miki Y, Hashimoto D, Fujisawa T, Enomoto N, Inui N, Kaida Y, Yokomura K, Koshimizu N, Toyoshima M, Imokawa S, Yamada T, Shirai T, Hayakawa H, Nakamura H, Suda T. Pneumothorax in Patients with Idiopathic Pleuroparenchymal Fibroelastosis: Incidence, Clinical Features, and Risk Factors. Respiration 2021; 100:19-26. [PMID: 33401281 DOI: 10.1159/000511965] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/29/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Idiopathic pleuroparenchymal fibroelastosis (PPFE) is a rare form of idiopathic interstitial pneumonia that is characterized by predominantly upper lobe pleural and subpleural lung parenchymal fibrosis. Pneumothorax is one of the major respiratory complications in PPFE patients; however, its clinical features are poorly understood. OBJECTIVE We aimed to investigate the complication of pneumothorax in patients with idiopathic PPFE. METHODS A retrospective multicenter study involving 89 patients who had been diagnosed with idiopathic PPFE was conducted. We investigated the cumulative incidence, clinical features, and risk factors of pneumothorax after the diagnosis of idiopathic PPFE. RESULTS Pneumothorax developed in 53 patients (59.6%) with 120 events during the observation period (41.8 ± 35.0 months). The cumulative incidence of pneumothorax was 24.8, 44.9, and 53.9% at 1, 2, and 3 years, respectively. Most events of pneumothorax were asymptomatic (n = 85; 70.8%) and small in size (n = 92; 76.7%); 30 patients (56.6%) had recurrent pneumothorax. Chest drainage was required in 23 pneumothorax events (19.2%), and a persistent air leak was observed in 13 (56.5%). Patients with pneumothorax were predominantly male and frequently had pathological diagnoses of PPFE and prior history of pneumothorax and corticosteroid use; they also had significantly poorer survival than those without pneumothorax (log-rank test; p = 0.001). Multivariate analysis revealed that a higher residual volume/total lung capacity ratio was significantly associated with the development of pneumothorax after the diagnosis. CONCLUSION Pneumothorax is often asymptomatic and recurrent in patients with idiopathic PPFE, leading to poor outcomes in some cases.
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Affiliation(s)
- Masato Kono
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan, .,Department of Pulmonary Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Japan,
| | - Yutaro Nakamura
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yasunori Enomoto
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hideki Yasui
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hironao Hozumi
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Masato Karayama
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yuzo Suzuki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Kazuki Furuhashi
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yoshihiro Miki
- Department of Pulmonary Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Japan
| | - Dai Hashimoto
- Department of Pulmonary Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Japan
| | - Tomoyuki Fujisawa
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Noriyuki Enomoto
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Naoki Inui
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yusuke Kaida
- Department of Respiratory Medicine, Enshu Hospital, Hamamatsu, Japan
| | - Koshi Yokomura
- Department of Respiratory Medicine, Seirei Mikatahara General Hospital, Hamamatsu, Japan
| | - Naoki Koshimizu
- Department of Respiratory Medicine, Fujieda Municipal General Hospital, Fujieda, Japan
| | - Mikio Toyoshima
- Department of Respiratory Medicine, Hamamatsu Rosai Hospital, Hamamatsu, Japan
| | - Shiro Imokawa
- Department of Respiratory Medicine, Iwata City Hospital, Iwata, Japan
| | - Takashi Yamada
- Department of Respiratory Medicine, Shizuoka City Shizuoka Hospital, Shizuoka, Japan
| | - Toshihiro Shirai
- Department of Respiratory Medicine, Shizuoka General Hospital, Shizuoka, Japan
| | - Hiroshi Hayakawa
- Department of Respiratory Medicine, Tenryu Hospital, National Hospital Organization, Hamamatsu, Japan
| | - Hidenori Nakamura
- Department of Pulmonary Medicine, Seirei Hamamatsu General Hospital, Hamamatsu, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
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21
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Kinoshita Y, Ishii H, Nabeshima K, Watanabe K. The pathogenesis and pathology of idiopathic pleuroparenchymal fibroelastosis. Histol Histopathol 2020; 36:291-303. [PMID: 33315234 DOI: 10.14670/hh-18-289] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Idiopathic pleuroparenchymal fibroelastosis (IPPFE) is a rare subtype of idiopathic interstitial pneumonias that consists of elastofibrosis involving the lung parenchyma and pleural collagenous fibrosis predominantly located in the upper lobes. IPPFE has various distinct clinical and physiological characteristics, including platythorax and a marked decrease of forced vital capacity with an increased residual volume on a respiratory function test. The concept of IPPFE is now widely recognized and some diagnostic criteria have been proposed. In addition, the accumulation of cases has revealed the pathological features of IPPFE. However, little is known about the pathogenesis or the process of disease formation in IPPFE. This review article will provide a summary of the pathological features and previously reported hypotheses on disease formation in IPPFE, to discuss the potential etiologies and pathogenesis of IPPFE.
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Affiliation(s)
- Yoshiaki Kinoshita
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan.
| | - Hiroshi Ishii
- Department of Respiratory Medicine, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Kazuki Nabeshima
- Department of Pathology, Fukuoka University School of Medicine and Hospital, Fukuoka, Japan
| | - Kentato Watanabe
- Department of Respiratory Medicine, Nishi Fukuoka Hospital, Fukuoka, Japan
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Sumikawa H, Johkoh T, Egashira R, Sugiura H, Yamano Y, Kataoka K, Kondoh Y, Arakawa H, Nakamura M, Kuriu A, Nakanishi K, Tomiyama N. Pleuroparenchymal fibroelastosis-like lesions in patients with interstitial pneumonia diagnosed by multidisciplinary discussion with surgical lung biopsy. Eur J Radiol Open 2020; 7:100298. [PMID: 33354595 PMCID: PMC7744711 DOI: 10.1016/j.ejro.2020.100298] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/08/2020] [Accepted: 11/12/2020] [Indexed: 11/16/2022] Open
Abstract
Purpose The present study aimed to evaluate the significance of Pleuroparenchymal fibroelastosis (PPFE)-like lesions in predicting prognosis in patients with chronic interstitial pneumonia (IP). Method The present study enrolled 207 patients with IP in whom surgical lung biopsy was performed. Among the patients enrolled in the present study, 77 had idiopathic pulmonary fibrosis (IPF), 15 had nonspecific interstitial pneumonia (NSIP), 13 had chronic hypersensitivity pneumonitis (CHP), 41 had connective tissue disease (CTD), three had PPFE, and 58 had unclassifiable diagnosis. The incidence, characteristics, and thickness of PPFE-like lesions were evaluated in each patient with IP. Additionally, the influence of PPFE-like lesions on the prognosis was also determined. Results Of 207 patients, 160 (77.3 %) showed PPFE-like lesions. The frequency of PPFE-like lesions was similar in patients with IPF, NSIP, CHP, CTD, and unclassifiable diagnosis (79.5 %, 79.5 %, 73.2 %, 65.9 %, and 81 %, respectively); however, PPFE-like lesions were present in all patients with PPFE (p = 0.42). Consequently, there was no significant difference in the characteristics of PPFE-like lesions among patients with all forms of IP, except PPFE. PPFE-like lesions were not a significant predictor of prognosis (hazard ratio [HR], 1.16; 95 % confidence interval [CI], 0.64–2.10, p = 0.62); however, patients with PPFE-like lesions under the aortic arch had significantly poorer prognoses (HR, 2.70; 95 % CI, 1.66–4.39, p < 0.001). For craniocaudal extent comparison, patients with IPF with PPFE-like lesions below the level of the carina had significantly poorer prognoses than those without PPFE-like lesions (p = 0.001, overall survival 53.1 and 80.6, respectively). Conclusion PPFE-like lesions are common in patients with IP, and their characteristics were not significantly different among all forms of IP, except idiopathic PPFE. The broad extent of PPFE-like lesions is an important predictor of prognosis in patients with IPF.
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Key Words
- %DLCO, % predicted diffusing capacity of the lungs for carbon monoxide
- %DLCO/VA, % predicted diffusing capacity of the lungs for carbon monoxide per liter alveolar volume
- 95 % CI, 95 % confidence interval
- CHP, chronic hypersensitivity pneumonitis
- CT
- CTD, connective tissue disease
- DLCO, diffusing capacity of the lungs for carbon monoxide
- FEV1.0, forced expiratory volume in 1 s
- FVC, forced vital capacity
- HR, hazard ratio
- HRCT, high-resolution computed tomography
- IP, interstitial pneumonia
- IPF, idiopathic pulmonary fibrosis
- Interstitial pneumonia
- Lung
- NSIP, nonspecific interstitial pneumonia
- PPFE, pleuroparenchymal fibroelastosis
- Pleuroparencymal fibroelastosis
- Prognosis
- RV, residual volume
- TLC, total lung capacity
- UIP, usual interstitial pneumonia
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Affiliation(s)
- Hiromitsu Sumikawa
- Department of Radiology, Sakai City Medical Center, Japan.,Department of Radiology, Osaka International Cancer Institute, Japan
| | | | - Ryoko Egashira
- Department of Radiology, Faculty of Medicine, Saga University, Japan
| | - Hiroaki Sugiura
- Department of Radiology, Keio University School of Medicine, Japan
| | - Yasuhiko Yamano
- Department of Respiratory Medicine and Allergy, Tosei General Hospital, Japan
| | - Kensuke Kataoka
- Department of Respiratory Medicine and Allergy, Tosei General Hospital, Japan
| | - Yasuhiro Kondoh
- Department of Respiratory Medicine and Allergy, Tosei General Hospital, Japan
| | | | | | - Akihiro Kuriu
- Department of Radiology, Sakai City Medical Center, Japan
| | | | - Noriyuki Tomiyama
- Department of Radiology, Osaka University Graduate School of Medicine, Japan
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Ikeda T, Kinoshita Y, Ueda Y, Sasaki T, Kushima H, Ishii H. Physiological Criteria Are Useful for the Diagnosis of Idiopathic Pleuroparenchymal Fibroelastosis. J Clin Med 2020; 9:jcm9113761. [PMID: 33266381 PMCID: PMC7700592 DOI: 10.3390/jcm9113761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Diagnostic criteria of idiopathic pleuroparenchymal fibroelastosis (IPPFE) were recently proposed, including physiological criteria of the body mass index (BMI) and percentage of the predicted values of residual volume (RV)/total lung capacity (TLC) (RV/TLC %pred.). The aim of this study was to evaluate (i) whether the physiologic criteria are useful for the diagnosis and (ii) whether the flat chest index, defined as the ratio of the anteroposterior diameter to the transverse diameter of the thoracic cage, could be an alternative parameter to RV/TLC %pred. METHODS We selected consecutive IPPFE patients and idiopathic pulmonary fibrosis (IPF) patients. We examined the diagnostic sensitivity and specificity of the physiological criteria and flat chest index for differentiating IPPFE patients from IPF patients. RESULTS This study included 37 IPPFE patients and 89 IPF patients. The physiological criteria distinguished IPPFE patients from IPF patients with a sensitivity of 78.6% and specificity of 88.0%. The combination of the flat chest index and BMI was also effective for differentiation (sensitivity of 82.1% and specificity of 89.3%). CONCLUSION We verified the good performance of the physiologic criteria in a different cohort. When the RV/TLC is not measured, using the flat chest index instead of RV/TLC %pred. may be reasonable.
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Namba M, Masuda T, Takao S, Terada H, Yamaguchi K, Sakamoto S, Horimasu Y, Miyamoto S, Nakashima T, Iwamoto H, Ohshimo S, Fujitaka K, Hamada H, Awai K, Hattori N. Extent of pulmonary fibrosis on high-resolution computed tomography is a prognostic factor in patients with pleuroparenchymal fibroelastosis. Respir Investig 2020; 58:465-472. [PMID: 32762953 DOI: 10.1016/j.resinv.2020.05.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/21/2020] [Accepted: 05/25/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Several prognostic factors for pleuroparenchymal fibroelastosis (PPFE) have recently been reported. However, detailed high-resolution computed tomography (HRCT) findings have not yet been evaluated as prognostic factors. This study retrospectively investigated whether HRCT findings are prognostic factors in patients with PPFE compared to those with idiopathic pulmonary fibrosis (IPF). METHODS Patients with PPFE and IPF diagnosed at our hospital between January 2008 and December 2016 were enrolled. Clinical and HRCT characteristics were obtained. In addition to our patients, we also analyzed data of PPFE patients whose cause of death had been identified in previous studies. RESULTS We enrolled 15 patients with PPFE and 75 patients with IPF. Consolidation and maximum pleural thickening were significantly higher in patients with PPFE than in those with IPF (both P < .001). Fibrosis score, honeycomb area, and traction bronchiectasis were not significantly different between these patient groups but were significant prognostic factors in patients with PPFE in univariate analysis (P = .021, P = .017, and P = .014, respectively). The proportions of deaths by acute exacerbation or lung cancer were significantly lower in patients with PPFE than in those with IPF (P < .001 and P = .001, respectively), whereas death by respiratory failure was significantly more frequent in PPFE patients (P < .001). CONCLUSIONS HRCT findings, such as fibrosis score, honeycomb area, and traction bronchiectasis, were independent prognostic factors in patients with PPFE. Respiratory failure, but not acute exacerbation and lung cancer, was the main cause of death in patients with PPFE.
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Affiliation(s)
- Masashi Namba
- Department of Clinical Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - Takeshi Masuda
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan.
| | - Shun Takao
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroaki Terada
- Department of Diagnostic Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kakuhiro Yamaguchi
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shinjiro Sakamoto
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Yasushi Horimasu
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Shintaro Miyamoto
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Taku Nakashima
- Department of Respiratory Internal Medicine, Hiroshima University Hospital, Hiroshima, Japan
| | - Hiroshi Iwamoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Shinichiro Ohshimo
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazunori Fujitaka
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hironobu Hamada
- Department of Physical Analysis and Therapeutic Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kazuo Awai
- Department of Diagnostic Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Disease course and prognosis of pleuroparenchymal fibroelastosis compared with idiopathic pulmonary fibrosis. Respir Med 2020; 171:106078. [PMID: 32917352 DOI: 10.1016/j.rmed.2020.106078] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/15/2020] [Accepted: 06/29/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND Idiopathic pleuroparenchymal fibroelastosis (iPPFE) is a rare interstitial lung disease characterized by unique radiological and pathological findings. However, pathological evaluations are available only in a limited number of patients. Therefore, several clinical diagnostic criteria have been proposed. Nevertheless, the applicability of these criteria has not yet been validated. Moreover, the clinical course of iPPFE and its prognosis have not yet been completely elucidated. METHODS The present study assessed previously proposed clinical diagnostic criteria by comparing the clinical features between pathologically diagnosed iPPFE (p-iPPFE) and clinically diagnosed iPPFE (c-iPPFE). Subsequently, the clinical features of iPPFE were characterized and compared with those of idiopathic pulmonary fibrosis (IPF, n = 323). RESULTS Clinical characteristics of c-iPPFE (n = 27) and p-iPPFE (n = 35) were similar. No significant difference was observed in terms of prognosis between c-iPPFE and p-iPPFE. The number of patients with iPPFE (both c-iPPFE and p-iPPFE) who developed lung cancer was significantly lower than that of patients with IPF. However, acute exacerbation (AE) showed similar incidence in patients with iPPFE and IPF. Survival of patients with iPPFE was significantly worse than that of patients with IPF (5-year survival rate: 38.5% vs. 63.5%, p < 0.0001), and the most common cause of death was chronic respiratory failure (73.8%), followed by AE (14.3%). Male gender was the only poor prognostic factor of iPPFE. CONCLUSION The present study demonstrated efficiency of clinical diagnosis and also revealed clinically important characteristics of iPPFE that should be considered for management of iPPFE.
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Abstract
This review discusses diagnostic pathology in idiopathic interstitial pneumonias (IIPs). Accurate understanding of basic structure of lung lobules is critical because the location of abnormalities inside the lobule is an important effector of pathology diagnosis. Depending on the method of obtaining tissue, recognition of the location may be difficult or impossible. Cryobiopsy is a new technology and its coverage of lung lobules is limited. This article discusses fundamental anatomy and approach to interstitial pneumonia. In addition, most histologic types of IIPs are covered, but the focus is on diagnosis of usual interstitial pneumonia because of its clinical importance.
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Affiliation(s)
- Yoshiaki Zaizen
- Department of Pathology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan; Division of Respirology, Neurology and Rheumatology, Department of Medicine, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011, Japan
| | - Junya Fukuoka
- Department of Pathology, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan; Department of Pathology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki 852-8501, Japan; Department of Pathology, Kameda Medical Center, 929 Higashi-machi, Kamogawa, Chiba 296-8602, Japan.
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Chua F, Desai SR, Nicholson AG, Devaraj A, Renzoni E, Rice A, Wells AU. Pleuroparenchymal Fibroelastosis. A Review of Clinical, Radiological, and Pathological Characteristics. Ann Am Thorac Soc 2019; 16:1351-1359. [PMID: 31425665 PMCID: PMC6945468 DOI: 10.1513/annalsats.201902-181cme] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/30/2019] [Indexed: 12/13/2022] Open
Abstract
Pleuroparenchymal fibroelastosis (PPFE) is an unusual pulmonary disease with unique clinical, radiological, and pathological characteristics. Designated a rare idiopathic interstitial pneumonia in 2013, its name refers to a combination of fibrosis involving the visceral pleura and fibroelastotic changes predominating in the subpleural lung parenchyma. Although a number of disease associations have been described, no single cause of PPFE has been unequivocally identified. A diagnosis of PPFE is most commonly achieved by identifying characteristic abnormalities on computed tomographic scans. The earliest changes are consistently located in the upper lobes close to the lung apices, the same locations where subsequent disease progression is also most conspicuous. When sufficiently severe, the disease leads to progressive volume loss of the upper lobes, which, in combination with decreased body mass, produces platythorax. Once regarded as a slowly progressing entity, it is now acknowledged that some patients with PPFE follow an inexorably progressive course that culminates in irreversible respiratory failure and early death. In the absence of effective medical drug treatment, lung transplant remains the only therapeutic option for this disorder. This review focuses on improving early disease recognition and evaluating its pathophysiological impact and discusses working approaches for its management.
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Affiliation(s)
| | | | | | | | | | - Alexandra Rice
- Department of Pathology, Royal Brompton Hospital, London, United Kingdom
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Kono M, Fujita Y, Takeda K, Miyashita K, Tsutsumi A, Kobayashi T, Miki Y, Hashimoto D, Enomoto N, Nakamura Y, Suda T, Nakamura H. Clinical significance of lower-lobe interstitial lung disease on high-resolution computed tomography in patients with idiopathic pleuroparenchymal fibroelastosis. Respir Med 2019; 154:122-126. [PMID: 31238182 DOI: 10.1016/j.rmed.2019.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/21/2019] [Accepted: 06/18/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Idiopathic pleuroparenchymal fibroelastosis (IPPFE) is a rare form of idiopathic interstitial pneumonias (IIP) and may have other patterns of interstitial lung disease (ILD) in the lower lobe, such as usual interstitial pneumonia (UIP). However, the clinical significance of lower-lobe ILD in patients with IPPFE is unclear. METHODS A retrospective review of 40 consecutive patients with clinically diagnosed IPPFE in our institution from 2005 to 2016 was conducted. The presence of lower-lobe ILD on high-resolution computed tomography (HRCT) was assessed and classified into UIP or non-UIP pattern according to a modification of diagnostic criteria for idiopathic pulmonary fibrosis. Clinical characteristics and prognostic factors were evaluated. RESULTS Among the 40 patients with IPPFE, 21 (53%) had lower-lobe ILD, including 13 with UIP pattern and 8 with non-UIP pattern. Patients with IPPFE who had lower-lobe ILD had significantly older age, higher frequency of fine crackles, higher serum KL-6 level, lower residual volume (RV), and lower total lung capacity (TLC) than those without lower-lobe ILD. In addition, those with lower-lobe ILD, especially UIP pattern, had a significantly poorer survival than those without lower-lobe ILD (log-rank test; p = 0.014, p < 0.001, respectively). Multivariate Cox proportional hazards regression analysis revealed that low %forced vital capacity (%FVC) at baseline and coexistence of UIP pattern were significantly associated with poor prognosis in patients with IPPFE. CONCLUSIONS The coexistence of lower-lobe ILD on HRCT, especially the UIP pattern, may predict poor survival in patients with IPPFE.
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Affiliation(s)
- Masato Kono
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan.
| | - Yuiko Fujita
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan
| | - Kenichiro Takeda
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan
| | - Koichi Miyashita
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan
| | - Akari Tsutsumi
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan
| | - Takeshi Kobayashi
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan
| | - Yoshihiro Miki
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan
| | - Dai Hashimoto
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan
| | - Noriyuki Enomoto
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Yutaro Nakamura
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Hidenori Nakamura
- Seirei Hamamatsu General Hospital, Department of Pulmonary Medicine, Japan
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