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Mei H, Peng J, Wang T, Zhou T, Zhao H, Zhang T, Yang Z. Overcoming the Limits of Cross-Sensitivity: Pattern Recognition Methods for Chemiresistive Gas Sensor Array. NANO-MICRO LETTERS 2024; 16:269. [PMID: 39141168 PMCID: PMC11324646 DOI: 10.1007/s40820-024-01489-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 07/21/2024] [Indexed: 08/15/2024]
Abstract
As information acquisition terminals for artificial olfaction, chemiresistive gas sensors are often troubled by their cross-sensitivity, and reducing their cross-response to ambient gases has always been a difficult and important point in the gas sensing area. Pattern recognition based on sensor array is the most conspicuous way to overcome the cross-sensitivity of gas sensors. It is crucial to choose an appropriate pattern recognition method for enhancing data analysis, reducing errors and improving system reliability, obtaining better classification or gas concentration prediction results. In this review, we analyze the sensing mechanism of cross-sensitivity for chemiresistive gas sensors. We further examine the types, working principles, characteristics, and applicable gas detection range of pattern recognition algorithms utilized in gas-sensing arrays. Additionally, we report, summarize, and evaluate the outstanding and novel advancements in pattern recognition methods for gas identification. At the same time, this work showcases the recent advancements in utilizing these methods for gas identification, particularly within three crucial domains: ensuring food safety, monitoring the environment, and aiding in medical diagnosis. In conclusion, this study anticipates future research prospects by considering the existing landscape and challenges. It is hoped that this work will make a positive contribution towards mitigating cross-sensitivity in gas-sensitive devices and offer valuable insights for algorithm selection in gas recognition applications.
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Affiliation(s)
- Haixia Mei
- Key Lab Intelligent Rehabil & Barrier Free Disable (Ministry of Education), Changchun University, Changchun, 130022, People's Republic of China
| | - Jingyi Peng
- Key Lab Intelligent Rehabil & Barrier Free Disable (Ministry of Education), Changchun University, Changchun, 130022, People's Republic of China
| | - Tao Wang
- Shanghai Key Laboratory of Intelligent Sensing and Detection Technology, School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Tingting Zhou
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, People's Republic of China
| | - Hongran Zhao
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, People's Republic of China
| | - Tong Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, People's Republic of China.
| | - Zhi Yang
- National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Department of Micro/Nano Electronics, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
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Guler SA, Scheschkowski T, Renner A, Kämpf L, Gasser M, Maurer B. Interdisciplinary Diagnosis and Management of Patients With Interstitial Lung Disease and Connective Tissue Disease. Chest 2024; 166:352-361. [PMID: 38447641 DOI: 10.1016/j.chest.2024.02.045] [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: 12/28/2023] [Revised: 02/07/2024] [Accepted: 02/26/2024] [Indexed: 03/08/2024] Open
Abstract
A diagnosis of interstitial lung diseases (ILD) can be challenging, and the identification of an associated connective tissue disease (CTD) is crucial to estimate prognosis and to establish the optimal treatment approach. Diagnostic delay, limited expertise, and fragmented care are barriers that impede the delivery of comprehensive health care for patients with rare, complex, and multiorgan diseases such as CTD and ILD. In this article, we present our perspective on the interdisciplinary diagnosis and interprofessional treatment of patients with ILD and suspected CTD or CTD at risk of ILD. We outline the structure of our service, delineating the roles and responsibilities of the team members. Additionally, we provide an overview of our patient population, including diagnostic approaches and specific treatments, and illustrate a patient case. Furthermore, we focus on specific benefits and challenges of joint interdisciplinary and interprofessional patient consultations. The importance of rheumatology and pulmonology assessments in specific patient populations is emphasized. Finally, we explore future directions and discuss potential strategies to improve care delivery for patients with CTD-associated ILD.
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Affiliation(s)
- Sabina A Guler
- Department for Pulmonary Medicine, Allergology and Clinical Immunology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Lung Precision Medicine, Department for BioMedical Research, University of Bern, Bern, Switzerland.
| | - Tobias Scheschkowski
- Department for Pulmonary Medicine, Allergology and Clinical Immunology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Anja Renner
- Department for Pulmonary Medicine, Allergology and Clinical Immunology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Lea Kämpf
- Department for Pulmonary Medicine, Allergology and Clinical Immunology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Matthias Gasser
- Department of Rheumatology and Immunology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Britta Maurer
- Department of Rheumatology and Immunology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Lung Precision Medicine, Department for BioMedical Research, University of Bern, Bern, Switzerland
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Bando M, Chiba H, Miyazaki Y, Suda T. Current challenges in the diagnosis and management of idiopathic pulmonary fibrosis in Japan. Respir Investig 2024; 62:785-793. [PMID: 38996779 DOI: 10.1016/j.resinv.2024.06.006] [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: 03/19/2024] [Revised: 05/17/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024]
Abstract
Idiopathic pulmonary fibrosis (IPF) is the archetypal interstitial lung disease. It is a chronic progressive condition that is challenging to manage as the clinical course of the disease is often difficult to predict. The prevalence of IPF is rising globally and in Japan, where it is estimated to affect 27 individuals per 100,000 of the population. Greater patient numbers and the poor prognosis associated with IPF diagnosis mean that there is a growing need for disease management approaches that can slow or even reverse disease progression and improve survival. Considerable progress has been made in recent years, with the approval of two antifibrotic therapies for IPF (pirfenidone and nintedanib), the availability of Japanese treatment guidelines, and the creation of global and Japanese disease registries. Despite this, significant unmet needs remain with respect to the diagnosis, treatment, and management of this complex disease. Each of these challenges will be discussed in this review, including making a timely and differential diagnosis of IPF, uptake and adherence to antifibrotic therapy, patient access to pulmonary rehabilitation, lung transplantation and palliative care, and optimal strategies for monitoring and staging disease progression, with a particular focus on the status in Japan. In addition, the review will reflect upon how ongoing research, clinical trials of novel therapies, and technologic advancements (including artificial intelligence, biomarkers, and genomic classification) may help address these challenges in the future.
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Affiliation(s)
- Masashi Bando
- Division of Pulmonary Medicine, Department of Medicine, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi, 329-0498, Japan.
| | - Hirofumi Chiba
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, South-1 West-16, Chuo-ku, Sapporo, 060-8543, Japan
| | - Yasunari Miyazaki
- Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Takafumi Suda
- Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, 431-3192, Japan
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Aburto M, Rodríguez-Portal JA, Fernandez-Fabrellas E, García Sevila R, Herrera Lara S, Bollo de Miguel E, González Ruiz JM, Molina-Molina M, Safont Muñoz B, Godoy Mayoral R, Romero Ortiz AD, Soler Sempere MJ, Castillo Villegas D, Gaudó Navarro J, Tomás López L, Nuñez Sanchez B, Palacios Hidalgo Z, Sellares Torres J, Sacristán Bou L, Nieto Barbero MA, Casanova Espinosa A, Portillo-Carroz K, Cano-Jimenez E, Acosta Fernández O, Legarreta MJ, Valenzuela C. [Influence of Clinical Practice Guidelines on the Diagnosis and Treatment of Idiopathic Pulmonary Fibrosis. Data from the Registry of the Spanish Society of Pulmonology and Thoracic Surgery]. OPEN RESPIRATORY ARCHIVES 2024; 6:100334. [PMID: 39021619 PMCID: PMC11253673 DOI: 10.1016/j.opresp.2024.100334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/26/2024] [Indexed: 07/20/2024] Open
Abstract
Objective The objective of the study was to analyze the diagnostic process and the time until the start of treatment of patients with idiopathic pulmonary fibrosis in relation to the publication of successive clinical practice guide. Material and methods Multicenter, observational, ambispective study, in which patients includes in the idiopathic pulmonary fibrosis registry of the Spanish Society of Pulmonologist and Thoracic Surgery were analyzed. An electronic data collection notebook was enabled on the society's website. Sociodemographic and clinical variables were collected at diagnosis and follow-up of the patients. Results From January 2012 to december 2019, 1064 patients were included in the registry, with 929 finally analyzed. The diagnosis process varied depending on the year in which it was performed, and the radiological pattern observed in the high-resolution computed tomography. Up to 26.3% of the cases (244) were diagnosed with chest high-resolution computed tomography and clinical evaluation. Surgical biopsy was used up to 50.2% of cases diagnosed before 2011, while it has been used in 14.2% since 2018. The median time from the onset of symptoms to diagnosis was 360 days (IQR 120-720), taking more than 2 years in the 21.0% of patients. A percentage of 79.4 of patients received antifibrotic treatment. The average time from diagnosis to the antifibrotic treatment has been 309 ± 596.5 days, with a median of 49 (IQR 0-307). Conclusions The diagnostic process, including the time until diagnosis and the type of test used, has changed from 2011 to 2019, probably due to advances in clinical research and the publication of diagnostic-therapeutic consensus guidelines.
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Affiliation(s)
- Myriam Aburto
- Servicio de Neumología, Hospital Universitario Galdakao-Usansolo, Galdakao, Bizkaia, España
- Departamento de Medicina, Universidad del País Vasco- Euskal Herriko Unibertsitatea, País Vasco, España
- Biobizkaia, Barakaldo, Bizkaia, España
| | | | - Estrella Fernandez-Fabrellas
- Servicio de Neumología, Consorci Hospital General Universitari de Valencia, Valencia, España
- Departamento de Medicina, Universidad de Valencia, Valencia, España
| | - Raquel García Sevila
- Servicio de Neumología, Hospital General Universitario de Dr. Balmis, Alicante, España
- Departamento de Medicina Clínica, Universidad Miguel Hernández, Elche, Alicante, España
| | - Susana Herrera Lara
- Servicio de Neumología, Hospital Universitario Doctor Peset, Valencia, España
| | | | | | - María Molina-Molina
- Unidad de EPID, Servicio de Neumología, Hospital Universitari de Bellvitge, IDIBELL, L’Hospitalet de Llobregat, Barcelona, España
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, España
| | - Belén Safont Muñoz
- Servicio de Neumología, Hospital Clínico Universitario de Valencia, Valencia, España
| | - Raul Godoy Mayoral
- Servicio de Neumología, Hospital Universitario de Albacete, Albacete, España
| | | | | | | | | | - Laura Tomás López
- Departamento de Medicina, Universidad del País Vasco- Euskal Herriko Unibertsitatea, País Vasco, España
- Servicio de Neumología, Hospital Universitario de Araba, Vitoria-Gazteiz, Araba, Vitoria-Gazteiz, Araba, España
| | - Belén Nuñez Sanchez
- Servicio de Neumología, Hospital Universitario Son Espases, Palma de Mallorca, Islas Baleares, España
| | | | | | - Lirios Sacristán Bou
- Servicio de Neumología, Hospital General Universitario de Ciudad Real, Ciudad Real, España
| | | | | | - Karina Portillo-Carroz
- Servicio de Neumología, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, España
| | | | - Orlando Acosta Fernández
- Servicio de Neumología, Complejo Hospitalario Universitario de Canarias, San Cristóbal de La Laguna, Santa Cruz de Tenerife, España
| | - María José Legarreta
- Research Unit, Osakidetza Basque Health Service, Galdakao-Usansolo University Hospital, Galdakao, Bizkaia, España
- Biosistemak Kronikgune Institute for Health Services Research, Galdakao, Bizkaia, España
- Network for Research On Chronicity, Primary Care, and Health Promotion (RICAPPS), Galdakao, Bizkaia, España
| | - Claudia Valenzuela
- Servicio de Neumología, Hospital Universitario de La Princesa, Madrid, España
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Zhang M, Zhang J, Hu H, Zhou Y, Lin Z, Jing H, Sun B. Multiomic analysis of monocyte-derived alveolar macrophages in idiopathic pulmonary fibrosis. J Transl Med 2024; 22:598. [PMID: 38937806 PMCID: PMC11209973 DOI: 10.1186/s12967-024-05398-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 06/13/2024] [Indexed: 06/29/2024] Open
Abstract
BACKGROUND Monocyte-derived alveolar macrophages (Mo_AMs) are increasingly recognised as potential pathogenic factors for idiopathic pulmonary fibrosis (IPF). While scRNAseq analysis has proven valuable in the transcriptome profiling of Mo_AMs, the integration analysis of multi-omics may provide additional dimensions of understanding of these cellular populations. METHODS We performed multi-omics analysis on 116 scRNAseq, 119 bulkseq and five scATACseq lung tissue samples from IPF. We built a large-scale IPF scRNAseq atlas and conducted the Monocle 2/3 as well as the Cellchat to explore the developmental path and intercellular communication on Mo_AMs. We also reported the difference in metabolisms, tissue repair and phagocytosis between Mo_AMs and tissue-resident alveolar macrophages (TRMs). To determine whether Mo_AMs affected pulmonary function, we projected clinical phenotypes (FVC%pred) from the bulkseq dataset onto the scRNAseq atlas. Finally, we used scATATCseq to uncover the upstream regulatory mechanisms and determine key drivers in Mo_AMs. RESULTS We identified three Mo_AMs clusters and the trajectory analysis further validated the origin of these clusters. Moreover, via the Cellchat analysis, the CXCL12/CXCR4 axis was found to be involved in the molecular basis of reciprocal interactions between Mo_AMs and fibroblasts through the activation of the ERK pathway in Mo_AMs. SPP1_RecMacs (RecMacs, recruited macrophages) were higher in the low-FVC group than in the high-FVC group. Specifically, compared with TRMs, the functions of lipid and energetic metabolism as well as tissue repair were higher in Mo_AMs than TRMs. But, TRMs may have higher level of phagocytosis than TRMs. SPIB (PU.1), JUNB, JUND, BACH2, FOSL2, and SMARCC1 showed stronger association with open chromatin of Mo_AMs than TRMs. Significant upregulated expression and deep chromatin accessibility of APOE were observed in both SPP1_RecMacs and TRMs. CONCLUSION Through trajectory analysis, it was confirmed that SPP1_RecMacs derived from Monocytes. Besides, Mo_AMs may influence FVC% pred and aggravate pulmonary fibrosis through the communication with fibroblasts. Furthermore, distinctive transcriptional regulators between Mo_AMs and TRMs implied that they may depend on different upstream regulatory mechanisms. Overall, this work provides a global overview of how Mo_AMs govern IPF and also helps determine better approaches and intervention therapies.
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Affiliation(s)
- Miaomiao Zhang
- Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
- Department of Internal Medicine II, University Hospital Bonn, Section of Pneumology, Bonn, Germany
| | - Jinghao Zhang
- Department of Respiratory and Critical Care Medicine, Xuzhou Central Hospital, Xuzhou, China
| | - Haisheng Hu
- Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuan Zhou
- Department of Medicine II, Heart Center Bonn, University Hospital Bonn, Bonn, Germany
| | - ZhiWei Lin
- Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hui Jing
- Department of Respiratory and Critical Care Medicine, Xuzhou Central Hospital, Xuzhou, China
| | - Baoqing Sun
- Department of Clinical Laboratory, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
- Guangzhou Laboratory, Guangzhou, 510005, China.
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Park S, Kim JH, Woo JH, Park SY, Cha YK, Chung MJ. Pixel-Wise Interstitial Lung Disease Interval Change Analysis: A Quantitative Evaluation Method for Chest Radiographs Using Weakly Supervised Learning. Bioengineering (Basel) 2024; 11:562. [PMID: 38927798 PMCID: PMC11201158 DOI: 10.3390/bioengineering11060562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Interstitial lung disease (ILD) is characterized by progressive pathological changes that require timely and accurate diagnosis. The early detection and progression assessment of ILD are important for effective management. This study introduces a novel quantitative evaluation method utilizing chest radiographs to analyze pixel-wise changes in ILD. Using a weakly supervised learning framework, the approach incorporates the contrastive unpaired translation model and a newly developed ILD extent scoring algorithm for more precise and objective quantification of disease changes than conventional visual assessments. The ILD extent score calculated through this method demonstrated a classification accuracy of 92.98% between ILD and normal classes. Additionally, using an ILD follow-up dataset for interval change analysis, this method assessed disease progression with an accuracy of 85.29%. These findings validate the reliability of the ILD extent score as a tool for ILD monitoring. The results of this study suggest that the proposed quantitative method may improve the monitoring and management of ILD.
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Affiliation(s)
- Subin Park
- Department of Health Sciences es and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Republic of Korea; (S.P.)
| | - Jong Hee Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 0631, Republic of Korea; (J.H.K.)
| | - Jung Han Woo
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 0631, Republic of Korea; (J.H.K.)
| | - So Young Park
- Department of Health Sciences es and Technology, SAIHST, Sungkyunkwan University, Seoul 06351, Republic of Korea; (S.P.)
| | - Yoon Ki Cha
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 0631, Republic of Korea; (J.H.K.)
| | - Myung Jin Chung
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 0631, Republic of Korea; (J.H.K.)
- Medical AI Research Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Republic of Korea
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Shankar R, Hadinnapola CM, Clark AB, Adamali H, Chaudhuri N, Spencer LG, Wilson AM. Assessment of the impact of social deprivation, distance to hospital and time to diagnosis on survival in idiopathic pulmonary fibrosis. Respir Med 2024; 227:107612. [PMID: 38677526 DOI: 10.1016/j.rmed.2024.107612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/13/2024] [Accepted: 03/25/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) is a progressive condition associated with a variable prognosis. The relationship between socioeconomic status or distance travelled to respiratory clinics and prognosis is unclear. RESEARCH QUESTION To determine whether socioeconomic status, distance to hospital and time to referral affects survival in patients with IPF. STUDY DESIGN AND METHODS In this retrospective cohort study, we used data collected from the British Thoracic Society Interstitial Lung Diseases Registry, between 2013 and 2021 (n = 2359) and calculated the quintile of Index of Multiple Deprivation 2019 score, time from initial symptoms to hospital attendance and distance as the linear distance between hospital and home post codes. Survival was assessed using Cox proportional hazards models. RESULTS There was a significant association between increasing quintile of deprivation and duration of symptoms prior to hospital presentation, Gender Age Physiology (GAP) index and receipt of supplemental oxygen and antifibrotic therapies at presentation. The most deprived patients had worse overall survival compared to least deprived after adjusting for smoking status, GAP index, distance to hospital and time to referral (HR = 1.39 [1.11, 1.73]; p = 0.003). Patients living furthest from a respiratory clinic also had worse survival compared to those living closest (HR = 1.29 [1.01, 1.64]; p = 0.041). INTERPRETATION The most deprived patients with IPF have more severe disease at presentation and worse outcomes. Living far from hospital was also associated with poor outcomes. This suggests inequalities in access to healthcare and requires consideration in delivering effective and equitable care to patients with IPF.
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Affiliation(s)
- Rashmi Shankar
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Charaka M Hadinnapola
- Norwich Medical School, University of East Anglia, Norwich, UK; Department of Respiratory Medicine, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK
| | - Allan B Clark
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Huzaifa Adamali
- Bristol Interstitial Lung Disease Service, Southmead General Hospital, Bristol, UK
| | | | - Lisa G Spencer
- Liverpool Regional Interstitial Lung Disease Service, Liverpool University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Andrew M Wilson
- Norwich Medical School, University of East Anglia, Norwich, UK; Department of Respiratory Medicine, Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, UK.
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Faye F, Crocione C, Anido de Peña R, Bellagambi S, Escati Peñaloza L, Hunter A, Jensen L, Oosterwijk C, Schoeters E, de Vicente D, Faivre L, Wilbur M, Le Cam Y, Dubief J. Time to diagnosis and determinants of diagnostic delays of people living with a rare disease: results of a Rare Barometer retrospective patient survey. Eur J Hum Genet 2024:10.1038/s41431-024-01604-z. [PMID: 38755315 DOI: 10.1038/s41431-024-01604-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 05/18/2024] Open
Abstract
Timely diagnosis is one of the most serious challenges faced by people living with a rare disease (PLWRD), and this study estimates that in Europe, the average total diagnosis time (TDT) is close to 5 years. We investigated the duration of the TDT for PLWRD in Europe, the difficulties associated with their diagnosis odyssey and the main determinants of diagnosis delays for all rare diseases (RD). We conducted a survey of PLWRD and their families using Rare Barometer, the survey initiative of EURORDIS-Rare Diseases Europe. In geographical Europe, we surveyed 6507 people living with 1675 RD in 41 countries. We then performed a descriptive analysis and ordinal logistic regressions to identify the main determinants of diagnosis delays. Average TDT is 4.7 years. 56% of respondents were diagnosed more than 6 months after a first medical contact. The main determinants of diagnosis delays are symptom onset before 30 years of age, especially during childhood (OR = 3.11; 95% CI: 2.4-4.0) and adolescence (OR = 4.79; 95% CI: 3.7-6.2), being a woman (OR = 1.22; 95% CI:1.1-1.4), living in Northern Europe (OR = 2.15; 95% CI:1.8-2.6) or Western Europe (OR = 1.96; 95% CI:1.6-2.3), the number of healthcare professionals consulted (OR = 5.15; 95% CI:4.1-6.4), misdiagnosis (OR = 2.48; 95% CI:2.1-2.9), referral to a centre of expertise (OR = 1.17; 95% CI:1.0-1.3), unmet needs for psychological support (OR = 1.34; 95% CI:1.2-1.5) and financial support (OR = 1.16; 95% CI:1.0-1.3), having a genetic disease (OR = 1.33; 95% CI:1.1-1.5) and a family history of an RD (OR = 1.36; 95% CI:1.1-1.6). These determinants can inform policies and actions to improve access to diagnosis for all PLWRD.
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Affiliation(s)
| | | | | | | | | | | | - Lene Jensen
- Sjaeldne Diagnoser - Rare Diseases Denmark, Taastrup, Denmark
| | - Cor Oosterwijk
- VSOP - Vereniging Samenwerkende Ouder En Patiëntenorganisaties, Soest, Netherlands
| | - Eva Schoeters
- RaDiOrg - Rare Diseases Belgium asbl/vzw, Brussels, Belgium
| | | | - Laurence Faivre
- Centre Hospitalier Universitaire Dijon-Bourgogne, Dijon, France
| | | | - Yann Le Cam
- EURORDIS-Rare Diseases Europe, Paris, France
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9
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Grant-Orser A, Pooler C, Archibald N, Fell C, Ferrara G, Johannson KA, Kalluri M. The diagnostic pathway for patients with interstitial lung disease: a mixed-methods study of patients and physicians. BMJ Open Respir Res 2024; 11:e002333. [PMID: 38688689 PMCID: PMC11086372 DOI: 10.1136/bmjresp-2024-002333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 04/11/2024] [Indexed: 05/02/2024] Open
Abstract
OBJECTIVES The diagnostic process for patients with interstitial lung diseases (ILD) remains complex. The aim of this study was to characterise the diagnostic care pathway and identify barriers and potential solutions to access a timely and accurate ILD diagnosis. DESIGN This mixed-method study was comprised of a quantitative chart review, patient and physician surveys and focus groups. RESULTS Chart review was completed for 97 patients. Median time from symptom onset to ILD diagnosis was 12.0 (IQR 20.5) months, with 46% diagnosed within 1 year. Time from first computed tomography (CT) scan to respirology referral was 2.4 (IQR 21.2) months. Referrals with a prior CT were triaged sooner than referrals without (1.7±1.6 months vs 3.9±3.3 months, p=0.013, 95% CI 0.48 to 2.94). On patient surveys (n=70), 51% felt that their lung disease was not recognised early enough. Commonly reported challenges to timely diagnosis included delayed presentation to primary care, initial misdiagnoses and long wait-times for specialists. Forty-five per cent of physicians (n=20) identified diagnostic delays, attributed to delayed presentations to primary care (58%), initial misdiagnoses (67%) and delayed chest imaging (75%). Themes from patient and respirologist focus groups included patient-related, healthcare provider-related and system-related factors leading to delays in diagnosis. CONCLUSIONS This mixed-methods study identified patient and system-related factors that contribute to diagnostic delays for patients with ILD, with most delays occurring prior to respirology referral. ILD awareness and education, earlier presentation to primary care, expedited access to chest imaging and earlier referral to respirology may expedite diagnosis.
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Affiliation(s)
- Amanda Grant-Orser
- Department of Medicine, Division of Respirology, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Charlotte Pooler
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada
- Palliative and End of Life Program, Alberta Health Services, Edmonton, Alberta, Canada
| | - Nathan Archibald
- Department of Medicine, Division of Respirology, University of Alberta, Edmonton, Alberta, Canada
| | - Charlene Fell
- Department of Medicine, Division of Respirology, University of Calgary, Calgary, Alberta, Canada
| | - Giovanni Ferrara
- Department of Medicine, Division of Respirology, University of Alberta, Edmonton, Alberta, Canada
| | - Kerri A Johannson
- Department of Medicine, Division of Respirology, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Meena Kalluri
- Department of Medicine, Division of Respirology, University of Alberta, Edmonton, Alberta, Canada
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10
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Yoon HY, Kim H, Bae Y, Song JW. Smoking status and clinical outcome in idiopathic pulmonary fibrosis: a nationwide study. Respir Res 2024; 25:191. [PMID: 38685071 PMCID: PMC11059669 DOI: 10.1186/s12931-024-02819-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 04/22/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Smoking status has been linked to the development of idiopathic pulmonary fibrosis (IPF). However, the effect of smoking on the prognosis of patients with IPF is unclear. We aimed to investigate the association between smoking status and all-cause mortality or hospitalisation by using national health claims data. METHODS IPF cases were defined as people who visited medical institutions between January 2002 and December 2018 with IPF and rare incurable disease exempted calculation codes from the National Health Insurance Database. Total 10,182 patients with available data on smoking status were included in this study. Ever-smoking status was assigned to individuals with a history of smoking ≥ 6 pack-years. The multivariable Cox proportional hazard model was used to evaluate the association between smoking status and prognosis. RESULTS In the entire cohort, the mean age was 69.4 years, 73.9% were males, and 45.2% were ever smokers (current smokers: 14.2%; former smokers: 31.0%). Current smokers (hazard ratio [HR]: 0.709; 95% confidence interval [CI]: 0.643-0.782) and former smokers (HR: 0.926; 95% CI: 0.862-0.996) were independently associated with all-cause mortality compared with non-smokers. Current smokers (HR: 0.884; 95% CI: 0.827-0.945) and former smokers (HR: 0.909; 95% CI: 0.862-0.959) were also associated with a reduced risk of all-cause hospitalisation compared with non-smokers. A non-linear association between smoking amount and prognosis was found in a spline HR curve and showed increasing risk below 6 pack-years. CONCLUSION Ever-smoking status may be associated with favourable clinical outcomes in patients with IPF.
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Affiliation(s)
- Hee-Young Yoon
- Division of Allergy and Respiratory Diseases, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Hoseob Kim
- Department of Data Science, Hanmi Pharm. Co., Ltd, Seoul, Republic of Korea
| | - Yoonjong Bae
- Department of Data Science, Hanmi Pharm. Co., Ltd, Seoul, Republic of Korea
| | - Jin Woo Song
- 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, Republic of Korea.
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11
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Althobiani MA, Russell AM, Jacob J, Ranjan Y, Folarin AA, Hurst JR, Porter JC. Interstitial lung disease: a review of classification, etiology, epidemiology, clinical diagnosis, pharmacological and non-pharmacological treatment. Front Med (Lausanne) 2024; 11:1296890. [PMID: 38698783 PMCID: PMC11063378 DOI: 10.3389/fmed.2024.1296890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/26/2024] [Indexed: 05/05/2024] Open
Abstract
Interstitial lung diseases (ILDs) refer to a heterogeneous and complex group of conditions characterized by inflammation, fibrosis, or both, in the interstitium of the lungs. This results in impaired gas exchange, leading to a worsening of respiratory symptoms and a decline in lung function. While the etiology of some ILDs is unclear, most cases can be traced back to factors such as genetic predispositions, environmental exposures (including allergens, toxins, and air pollution), underlying autoimmune diseases, or the use of certain medications. There has been an increase in research and evidence aimed at identifying etiology, understanding epidemiology, improving clinical diagnosis, and developing both pharmacological and non-pharmacological treatments. This review provides a comprehensive overview of the current state of knowledge in the field of interstitial lung diseases.
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Affiliation(s)
- Malik A. Althobiani
- Royal Free Campus, UCL Respiratory, University College London, London, United Kingdom
- Department of Respiratory Therapy, Faculty of Medical Rehabilitation Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Anne-Marie Russell
- School of Health and Care Professions, University of Exeter, Exeter, United Kingdom
- School of Medicine and Health, University of Birmingham, Birmingham, United Kingdom
| | - Joseph Jacob
- UCL Respiratory, University College London, London, United Kingdom
- Satsuma Lab, Centre for Medical Image Computing, University College London Respiratory, University College London, London, United Kingdom
| | - Yatharth Ranjan
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
| | - Amos A. Folarin
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, United Kingdom
- NIHR Biomedical Research Centre at South London and Maudsley NHS Foundation Trust, King's College London, London, United Kingdom
- Institute of Health Informatics, University College London, London, United Kingdom
- NIHR Biomedical Research Centre at University College London Hospitals, NHS Foundation Trust, London, United Kingdom
| | - John R. Hurst
- Royal Free Campus, UCL Respiratory, University College London, London, United Kingdom
| | - Joanna C. Porter
- UCL Respiratory, University College London, London, United Kingdom
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12
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Lee HJ, Bernau K, Harr TJ, Rosenkrans ZT, Kessler GA, Stott K, Oler AT, Rahar B, Zhu T, Medina-Guevara Y, Gupta N, Cho I, Gari MK, Burkel BM, Jeffery JJ, Weichmann AM, Tomasini-Johansson BR, Ponik SM, Engle JW, Hernandez R, Kwon GS, Sandbo N. [ 64Cu]Cu-PEG-FUD peptide for noninvasive and sensitive detection of murine pulmonary fibrosis. SCIENCE ADVANCES 2024; 10:eadj1444. [PMID: 38598637 PMCID: PMC11006221 DOI: 10.1126/sciadv.adj1444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 03/05/2024] [Indexed: 04/12/2024]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease resulting in irreversible scarring within the lungs. However, the lack of biomarkers that enable real-time assessment of disease activity remains a challenge in providing efficient clinical decision-making and optimal patient care in IPF. Fibronectin (FN) is highly expressed in fibroblastic foci of the IPF lung where active extracellular matrix (ECM) deposition occurs. Functional upstream domain (FUD) tightly binds the N-terminal 70-kilodalton domain of FN that is crucial for FN assembly. In this study, we first demonstrate the capacity of PEGylated FUD (PEG-FUD) to target FN deposition in human IPF tissue ex vivo. We subsequently radiolabeled PEG-FUD with 64Cu and monitored its spatiotemporal biodistribution via μPET/CT imaging in mice using the bleomycin-induced model of pulmonary injury and fibrosis. We demonstrated [64Cu]Cu-PEG-FUD uptake 3 and 11 days following bleomycin treatment, suggesting that radiolabeled PEG-FUD holds promise as an imaging probe in aiding the assessment of fibrotic lung disease activity.
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Affiliation(s)
- Hye Jin Lee
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
| | - Ksenija Bernau
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
| | - Thomas J. Harr
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
| | - Zachary T. Rosenkrans
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI 53705, USA
| | - Grace A. Kessler
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
| | - Kristen Stott
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
| | - Angie Tebon Oler
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
| | - Babita Rahar
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
| | - Terry Zhu
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
| | - Yadira Medina-Guevara
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI 53705, USA
| | - Nikesh Gupta
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
| | - Inyoung Cho
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
| | - Metti K. Gari
- Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI 53705, USA
| | - Brian M. Burkel
- Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI 53705, USA
| | - Justin J. Jeffery
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI, USA
| | - Ashley M. Weichmann
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI, USA
| | - Bianca R. Tomasini-Johansson
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
- Arrowhead Pharmaceuticals, 502 S. Rosa Rd., Madison, WI 53719, USA
| | - Suzanne M. Ponik
- Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI 53705, USA
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI, USA
| | - Jonathan W. Engle
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI 53705, USA
| | - Reinier Hernandez
- Department of Medical Physics, School of Medicine and Public Health, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI 53705, USA
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI, USA
| | - Glen S. Kwon
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI 53705, USA
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, 1111 Highland Avenue, Madison, WI, USA
| | - Nathan Sandbo
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792, USA
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Tinker RJ, Fisher M, Gimeno AF, Gill K, Ivey C, Peterson JF, Bastarache L. Diagnostic delay in monogenic disease: A scoping review. Genet Med 2024; 26:101074. [PMID: 38243783 PMCID: PMC11140588 DOI: 10.1016/j.gim.2024.101074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/21/2024] Open
Abstract
PURPOSE Diagnostic delay in monogenic disease is reportedly common. We conducted a scoping review investigating variability in study design, results, and conclusions. METHODS We searched the academic literature on January 17, 2023, for original peer reviewed journals and conference articles that quantified diagnostic delay in monogenic disease. We abstracted the reported diagnostic delay, relevant study design features, and definitions. RESULTS Our search identified 259 articles quantifying diagnostic delay in 111 distinct monogenetic diseases. Median reported diagnostic delay for all studies collectively in monogenetic diseases was 5.0 years (IQR 2-10). There was major variation in the reported delay within individual monogenetic diseases. Shorter delay was associated with disorders of childhood metabolism, immunity, and development. The majority (67.6%) of articles that studied delay reported an improvement with calendar time. Study design and definitions of delay were highly heterogenous. Three gaps were identified: (1) no studies were conducted in the least developed countries, (2) delay has not been studied for the majority of known, or (3) most prevalent genetic diseases. CONCLUSION Heterogenous study design and definitions of diagnostic delay inhibit comparison across studies. Future efforts should focus on standardizing delay measurements, while expanding the research to low-income countries.
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Affiliation(s)
- Rory J Tinker
- Division of Medical Genetics and Genomic Medicine, Vanderbilt University Medical Center, Nashville, TN.
| | - Miles Fisher
- Vanderbilt University Medical Center, Department of Child Neurology, Nashville, TN
| | - Alex F Gimeno
- Vanderbilt University School of Medicine, Nashville, TN
| | - Kayce Gill
- Annette and Irwin Eskind Family Biomedical Library and Learning Center, Vanderbilt University, Nashville, TN
| | - Camille Ivey
- Annette and Irwin Eskind Family Biomedical Library and Learning Center, Vanderbilt University, Nashville, TN
| | - Josh F Peterson
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN; Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Lisa Bastarache
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN
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14
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Ebert C, Walsh AM, Sereda L, Wilson CL, Schafer PH, Fischer A, Zhao L, Ramirez-Valle F, Gordon D, Schnapp LM. Circulating biomarker analyses in a longitudinal cohort of patients with IPF. Am J Physiol Lung Cell Mol Physiol 2024; 326:L303-L312. [PMID: 38226605 PMCID: PMC11281789 DOI: 10.1152/ajplung.00222.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/21/2023] [Accepted: 01/05/2024] [Indexed: 01/17/2024] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is an incurable interstitial lung disease characterized by fibrosis. Two FDA-approved drugs, pirfenidone and nintedanib, only modestly prolong survival. In this study, we asked whether levels of select circulating biomarkers in patients with IPF demonstrated changes in response to treatment over time and whether treatment with pirfenidone and nintedanib led to differential biomarker expression. Serial plasma samples from 48 patients with IPF on usual treatment and six healthy volunteers were analyzed to identify differentially expressed blood protein. Hypothesis-driven potential biomarker selection was based on recent literature, internal preclinical data, and the PROLIFIC Consortium (Schafer P. 6th Annual IPF Summit. Boston, MA, 2022) proposed biomarkers of pulmonary fibrosis. We compared our findings to public databases to provide insights into relevant signaling pathways in IPF. Of the 26 proteins measured, we found that 11 (SP-D, TIMP1, MMP7, CYFRA21-1, YKL40, CA125, sICAM, IP-10, MDC, CXCL13) were significantly elevated in patients with IPF compared with healthy volunteers but their levels did not significantly change over time. In the IPF samples, seven proteins were elevated in the treatment group compared with the no-treatment group. However, protein profiles were not distinguishable between patients on pirfenidone versus nintedanib. We demonstrated that most proteins differentially detected in our samples were predicted to be secreted from the lung epithelial or interstitial compartments. However, a significant minority of the proteins are not known to be transcriptionally expressed by lung cells, suggesting an ongoing systemic response. Understanding the contributions of the systemic response in IPF may be important as new therapeutics are developed.NEW & NOTEWORTHY In this study, we confirmed protein expression differences in only a subset of predicted biomarkers from IPF and control subjects. Most differentially expressed proteins were predicted to be secreted from lung cells. However, a significant minority of the proteins are not known to be transcriptionally expressed by lung cells, suggesting an ongoing systemic response. The contributions of the systemic response in IPF may be important as new therapeutics are developed.
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Affiliation(s)
| | - Alice M Walsh
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | - Larisa Sereda
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | - Carole L Wilson
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, United States
- Medical University of South Carolina, Charleston, South Carolina, United States
| | | | - Aryeh Fischer
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | - Lei Zhao
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | | | - David Gordon
- Bristol Myers Squibb, Princeton, New Jersey, United States
| | - Lynn M Schnapp
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, United States
- Medical University of South Carolina, Charleston, South Carolina, United States
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15
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Bradley J, Huang J, Kalra A, Reicher J. External validation of Fibresolve, a machine-learning algorithm, to non-invasively diagnose idiopathic pulmonary fibrosis. Am J Med Sci 2024; 367:195-200. [PMID: 38147938 DOI: 10.1016/j.amjms.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/19/2023] [Accepted: 12/21/2023] [Indexed: 12/28/2023]
Abstract
BACKGROUND Previous work has shown the ability of Fibresolve, a machine learning system, to non-invasively classify idiopathic pulmonary fibrosis (IPF) with a pre-invasive sensitivity of 53% and specificity of 86% versus other types of interstitial lung disease. Further external validation for the use of Fibresolve to classify IPF in patients with non-definite usual interstitial pneumonia (UIP) is needed. The aim of this study is to assess the sensitivity for Fibresolve to positively classify IPF in an external cohort of patients with a non-definite UIP radiographic pattern. METHODS This is a retrospective analysis of patients (n = 193) enrolled in two prospective phase two clinical trials that enrolled patients with IPF. We retrospectively identified patients with non-definite UIP on HRCT (n = 51), 47 of whom required surgical lung biopsy for diagnosis. Fibresolve was used to analyze the HRCT chest imaging which was obtained prior to invasive biopsy and sensitivity for final diagnosis of IPF was calculated. RESULTS The sensitivity of Fibresolve for the non-invasive classification of IPF in patients with a non-definite UIP radiographic pattern by HRCT was 76.5% (95% CI 66.5-83.7). For the subgroup of 47 patients who required surgical biopsy to aid in final diagnosis of IPF, Fibresolve had a sensitivity of 74.5% (95% CI 60.5-84.7). CONCLUSION In patients with suspected IPF with non-definite UIP on HRCT, Fibresolve can positively identify cases of IPF with high sensitivity. These results suggest that in combination with standard clinical assessment, Fibresolve has the potential to serve as an adjunct in the non-invasive diagnosis of IPF.
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Affiliation(s)
- James Bradley
- Division of Pulmonary, Critical Care Medicine, and Sleep Disorders, Department of Medicine, University of Louisville, Louisville, KY, United States
| | - Jiapeng Huang
- Department of Anesthesiology and Perioperative Medicine, University of Louisville, Louisville, KY, United States
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16
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Ukita J, Nishikiori H, Hirota K, Honda S, Hatanaka K, Nakamura R, Ikeda K, Mori Y, Asai Y, Chiba H, Ogaki K. Detection of fibrosing interstitial lung disease-suspected chest radiographs using a deep learning-based computer-aided detection system: a retrospective, observational study. BMJ Open 2024; 14:e078841. [PMID: 38262640 PMCID: PMC10806761 DOI: 10.1136/bmjopen-2023-078841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 01/03/2024] [Indexed: 01/25/2024] Open
Abstract
OBJECTIVES To investigate the effectiveness of BMAX, a deep learning-based computer-aided detection system for detecting fibrosing interstitial lung disease (ILD) on chest radiographs among non-expert and expert physicians in the real-world clinical setting. DESIGN Retrospective, observational study. SETTING This study used chest radiograph images consecutively taken in three medical facilities with various degrees of referral. Three expert ILD physicians interpreted each image and determined whether it was a fibrosing ILD-suspected image (fibrosing ILD positive) or not (fibrosing ILD negative). Interpreters, including non-experts and experts, classified each of 120 images extracted from the pooled data for the reading test into positive or negative for fibrosing ILD without and with the assistance of BMAX. PARTICIPANTS Chest radiographs of patients aged 20 years or older with two or more visits that were taken during consecutive periods were accumulated. 1251 chest radiograph images were collected, from which 120 images (24 positive and 96 negative images) were randomly extracted for the reading test. The interpreters for the reading test were 20 non-expert physicians and 5 expert physicians (3 pulmonologists and 2 radiologists). PRIMARY AND SECONDARY OUTCOME MEASURES The primary outcome was the comparison of area under the receiver-operating characteristic curve (ROC-AUC) for identifying fibrosing ILD-positive images by non-experts without versus with BMAX. The secondary outcome was the comparison of sensitivity, specificity and accuracy by non-experts and experts without versus with BMAX. RESULTS The mean ROC-AUC of non-expert interpreters was 0.795 (95% CI; 0.765 to 0.825) without BMAX and 0.825 (95% CI; 0.799 to 0.850) with BMAX (p=0.005). After using BMAX, sensitivity was improved from 0.744 (95% CI; 0.697 to 0.791) to 0.802 (95% CI; 0.754 to 0.850) among non-experts (p=0.003), but not among experts (p=0.285). Specificity and accuracy were not changed after using BMAX among either non-expert or expert interpreters. CONCLUSION BMAX was useful for detecting fibrosing ILD-suspected chest radiographs for non-expert physicians. TRIAL REGISTRATION NUMBER jRCT1032220090.
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Affiliation(s)
| | - Hirotaka Nishikiori
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Kenichi Hirota
- Department of Medical Information Planning, Sapporo Medical University Hospital, Sapporo, Hokkaido, Japan
| | | | - Kiwamu Hatanaka
- Device and Application Development Support Center, Mediscience Planning, Inc, Tokyo, Japan
| | | | - Kimiyuki Ikeda
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Yuki Mori
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Yuichiro Asai
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine Graduate School of Medicine, Sapporo, Hokkaido, Japan
| | - Hirofumi Chiba
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine Graduate School of Medicine, Sapporo, Hokkaido, Japan
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17
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Bermudo G, Roman-Rodriguez M, Molina-Molina M. Interstitial lung diseases: never forget to think about it in primary care. Expert Rev Respir Med 2024; 18:9-15. [PMID: 38486433 DOI: 10.1080/17476348.2024.2331763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 03/13/2024] [Indexed: 03/20/2024]
Affiliation(s)
- Guadalupe Bermudo
- ILD Unit, Respiratory Department, University Hospital of Bellvitge, IDIBELL, University of Barcelona, Hospitalet de Llobregat, Barcelona, Spain
- Respiratory Diseases Network Research Consortium (CIBERES), Spain
| | - Miguel Roman-Rodriguez
- Primary Care Respiratory Research Unit, Instituto de Investigación Sanitaria de Baleares (IdISBa), Palma de Mallorca, Spain
- Son Pisa Primary Care health centre, Palma de Mallorca, Spain
| | - Maria Molina-Molina
- ILD Unit, Respiratory Department, University Hospital of Bellvitge, IDIBELL, University of Barcelona, Hospitalet de Llobregat, Barcelona, Spain
- Respiratory Diseases Network Research Consortium (CIBERES), Spain
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18
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Deri O, Ovadia D, Huszti E, Peled M, Saute M, Hod T, Onn A, Seluk L, Furie N, Shafran I, Mass R, Chatterji S, Levy L. Referral rates and barriers to lung transplantation based on pulmonary function criteria in interstitial lung diseases: a retrospective cohort study. Ther Adv Respir Dis 2024; 18:17534666231221750. [PMID: 38179653 PMCID: PMC10771041 DOI: 10.1177/17534666231221750] [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: 03/25/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Interstitial lung diseases (ILD) unresponsive to medical therapy often require lung transplantation (LTx), which prolongs quality of life and survival. Ideal timing for referral for LTx remains challenging, with late referral associated with significant morbidity and mortality. Among other criteria, patients with ILD should be considered for LTx if forced vital capacity (FVC) is less than 80% or diffusion capacity for carbon monoxide (DLCO) is less than 40%. However, data on referral rates are lacking. OBJECTIVES To evaluate referral rates for LTx based on pulmonary function tests (PFTs) and identify barriers associated with non-referral. DESIGN A single-center retrospective cohort study. METHODS The study consisted of ILD patients who performed PFT between 2014 and 2020. Patients with FVC < 80% or a DLCO < 40% were included in the study. Patients with absolute contraindications to LTx were excluded. Referral rates were computed, and a comparison was made between referred and non-referred subjects. RESULTS Out of 114 ILD patients meeting criteria for referral to LTx, 35 were referred (30.7%), and 7 proceeded to undergo LTx. Median time from PFT to referral for assessment was 255 days [interquartile range (IQR) 35-1077]. Median time from referral to LTx was 89 days (IQR 59-143). Referred patients were younger (p = 0.003), had lower FVC (p < 0.001), DLCO (p < 0.001), and a higher rate of pulmonary hypertension (p = 0.04). Relatively better PFT, and older age, were significantly associated with non-referral of patients. CONCLUSION There is under-referral of ILD patients who are eligible for LTx, which is associated with severe disease and missed opportunities for LTx. Further research is required to validate these findings.
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Affiliation(s)
- Ofir Deri
- Institute of Pulmonary Medicine, Sheba Medical Center Hospital – Tel Hashomer, Office #32, Derech Sheba 2, Ramat Gan, Tel Hashomer 52621, Israel
| | - David Ovadia
- Department of Respiratory Care and Rehabilitation, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ella Huszti
- Biostatistics Research Unit, University Health Network, Toronto, ON, Canada
| | - Michael Peled
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Milton Saute
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Tammy Hod
- Renal Transplant Center, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Amir Onn
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Lior Seluk
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nadav Furie
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Inbal Shafran
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ronen Mass
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sumit Chatterji
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Liran Levy
- The Sheba Lung Transplant Program, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Institute of Pulmonary Medicine, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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19
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Koudstaal T, Funke-Chambour M, Kreuter M, Molyneaux PL, Wijsenbeek MS. Pulmonary fibrosis: from pathogenesis to clinical decision-making. Trends Mol Med 2023; 29:1076-1087. [PMID: 37716906 DOI: 10.1016/j.molmed.2023.08.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/21/2023] [Accepted: 08/28/2023] [Indexed: 09/18/2023]
Abstract
Pulmonary fibrosis (PF) encompasses a spectrum of chronic lung diseases that progressively impact the interstitium, resulting in compromised gas exchange, breathlessness, diminished quality of life (QoL), and ultimately respiratory failure and mortality. Various diseases can cause PF, with their underlying causes primarily affecting the lung interstitium, leading to their referral as interstitial lung diseases (ILDs). The current understanding is that PF arises from abnormal wound healing processes triggered by various factors specific to each disease, leading to excessive inflammation and fibrosis. While significant progress has been made in understanding the molecular mechanisms of PF, its pathogenesis remains elusive. This review provides an in-depth exploration of the latest insights into PF pathophysiology, diagnosis, treatment, and future perspectives.
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Affiliation(s)
- Thomas Koudstaal
- Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - Manuela Funke-Chambour
- Department of Pulmonary Medicine, Inselspital, University Hospital Bern, Bern, Switzerland
| | - Michael Kreuter
- Mainz Center for Pulmonary Medicine, Departments of Pneumology, Mainz University Medical Center and of Pulmonary, Critical Care & Sleep Medicine, Marienhaus Clinic Mainz, Mainz, Germany
| | - Philip L Molyneaux
- Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Marlies S Wijsenbeek
- Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
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20
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Case AH, Beegle S, Hotchkin DL, Kaelin T, Kim HJ, Podolanczuk AJ, Ramaswamy M, Remolina C, Salvatore MM, Tu C, de Andrade JA. Defining the pathway to timely diagnosis and treatment of interstitial lung disease: a US Delphi survey. BMJ Open Respir Res 2023; 10:e001594. [PMID: 38007235 PMCID: PMC10680004 DOI: 10.1136/bmjresp-2022-001594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 10/31/2023] [Indexed: 11/27/2023] Open
Abstract
INTRODUCTION Timely diagnosis of interstitial lung disease (ILD) is limited by obstacles in the current patient pathway. Misdiagnosis and delays are common and may lead to a significant burden of diagnostic procedures and worse outcomes. This Delphi survey aimed to identify consensus on the key steps that facilitate the patient journey to an accurate ILD diagnosis and appropriate management in the US. METHODS A modified Delphi analysis was conducted, comprising three online surveys based on a comprehensive literature search. The surveys spanned five domains (guidelines, community screening, diagnosis, management and specialist referral) and were completed by a panel of US physicians, including primary care physicians and pulmonologists practising in community or academic settings. A priori definitions of consensus agreement were median scores of 2-3 (agree strongly/agree), with an IQR of 0-1 for questions on a 7-point Likert scale from -3 to 3, or ≥80% agreement for binary questions. RESULTS Forty-nine panellists completed the surveys and 62 statements reached consensus agreement. There was consensus agreement on what should be included in the primary care evaluation of patients with suspected ILD and the next steps following workup. Regarding diagnosis in community pulmonology care, consensus agreement was reached on the requisition and reporting of high-resolution CT scans and the appropriate circumstances for holding multidisciplinary discussions. Additionally, there was consensus agreement on which symptoms and comorbidities should be monitored, the frequency of consultations and the assessment of disease progression. Regarding specialist referral, consensus agreement was reached on which patients should receive priority access to ILD centres and the contents of the referral package. CONCLUSIONS These findings clarify the most common issues that should merit further evaluation for ILD and help define the steps for timely, accurate diagnosis and appropriate collaborative specialty management of patients with ILD.
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Affiliation(s)
- Amy Hajari Case
- Pulmonary, Critical Care, and Sleep Medicine, Piedmont Healthcare Inc, Atlanta, Georgia, USA
| | - Scott Beegle
- Division of Pulmonary & Critical Care Medicine, Albany Medical College, Albany, New York, USA
| | - David L Hotchkin
- Division of Pulmonary, Critical Care & Sleep Medicine, The Oregon Clinic, Portland, Oregon, USA
| | - Thomas Kaelin
- Lowcountry Lung and Critical Care, Charleston, South Carolina, USA
| | - Hyun Joo Kim
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care, and Sleep, University of Minnesota, Minneapolis, Minnesota, USA
| | - Anna J Podolanczuk
- Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Murali Ramaswamy
- LeBauer Pulmonary and Critical Care and PulmonIx, LLC at Cone Health, Greensboro, North Carolina, USA
| | - Carlos Remolina
- Department of Pulmonology, Trinitas Regional Medical Center, Elizabeth, New Jersey, USA
| | - Mary M Salvatore
- Department of Radiology, Columbia University Irving Medical Center, New York, New York, USA
| | - Conan Tu
- Internal Medicine, ProHEALTH, part of Optum, New York, New York, USA
| | - Joao A de Andrade
- Medicine, Div. of Allergy, Pulmonary, and Critical Care, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Arcana RI, Crișan-Dabija RA, Caba B, Zamfir AS, Cernomaz TA, Zabara-Antal A, Zabara ML, Arcana Ș, Marcu DT, Trofor A. Speaking of the "Devil": Diagnostic Errors in Interstitial Lung Diseases. J Pers Med 2023; 13:1589. [PMID: 38003904 PMCID: PMC10672616 DOI: 10.3390/jpm13111589] [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: 09/29/2023] [Revised: 11/05/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Interstitial lung diseases are respiratory diseases, which affect the normal lung parenchyma and can lead to significant pulmonary fibrosis, chronic respiratory failure, pulmonary hypertension, and ultimately death. Reuniting more than 200 entities, interstitial lung diseases pose a significant challenge to the clinician, as they represent rare diseases with vague and insidious respiratory symptoms. As such, there are many diagnostic errors that can appear along the journey of the patient with ILD, which leads to significant delays with implications for the prognosis and the quality of life of the patient.
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Affiliation(s)
- Raluca Ioana Arcana
- Doctoral School of the Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania; (R.I.A.); (A.Z.-A.); (Ș.A.)
- Clinical Hospital of Pulmonary Diseases, 700115 Iasi, Romania; (R.A.C.-D.); (A.-S.Z.); (D.T.M.); (A.T.)
| | - Radu Adrian Crișan-Dabija
- Clinical Hospital of Pulmonary Diseases, 700115 Iasi, Romania; (R.A.C.-D.); (A.-S.Z.); (D.T.M.); (A.T.)
- Department of Medical Sciences III, Pulmonology, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania;
| | - Bogdan Caba
- Department of Biomedical Sciences, Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | - Alexandra-Simona Zamfir
- Clinical Hospital of Pulmonary Diseases, 700115 Iasi, Romania; (R.A.C.-D.); (A.-S.Z.); (D.T.M.); (A.T.)
- Department of Medical Sciences III, Pulmonology, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania;
| | - Tudor Andrei Cernomaz
- Department of Medical Sciences III, Pulmonology, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania;
- Regional Institute of Oncology, 700483 Iasi, Romania
| | - Andreea Zabara-Antal
- Doctoral School of the Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania; (R.I.A.); (A.Z.-A.); (Ș.A.)
- Clinical Hospital of Pulmonary Diseases, 700115 Iasi, Romania; (R.A.C.-D.); (A.-S.Z.); (D.T.M.); (A.T.)
| | - Mihai Lucian Zabara
- Department of Surgery, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania;
- St. Spiridon Emergency Hospital, Clinic of Surgery (II), 700111 Iasi, Romania
| | - Ștefăniță Arcana
- Doctoral School of the Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania; (R.I.A.); (A.Z.-A.); (Ș.A.)
| | - Dragoș Traian Marcu
- Clinical Hospital of Pulmonary Diseases, 700115 Iasi, Romania; (R.A.C.-D.); (A.-S.Z.); (D.T.M.); (A.T.)
- Department of Medical Sciences I, Cardiology, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania
| | - Antigona Trofor
- Clinical Hospital of Pulmonary Diseases, 700115 Iasi, Romania; (R.A.C.-D.); (A.-S.Z.); (D.T.M.); (A.T.)
- Department of Medical Sciences III, Pulmonology, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa”, 700115 Iasi, Romania;
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van der Sar IG, Wijsenbeek MS, Braunstahl GJ, Loekabino JO, Dingemans AMC, In 't Veen JCCM, Moor CC. Differentiating interstitial lung diseases from other respiratory diseases using electronic nose technology. Respir Res 2023; 24:271. [PMID: 37932795 PMCID: PMC10626662 DOI: 10.1186/s12931-023-02575-3] [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: 08/25/2023] [Accepted: 10/22/2023] [Indexed: 11/08/2023] Open
Abstract
INTRODUCTION Interstitial lung disease (ILD) may be difficult to distinguish from other respiratory diseases due to overlapping clinical presentation. Recognition of ILD is often late, causing delay which has been associated with worse clinical outcome. Electronic nose (eNose) sensor technology profiles volatile organic compounds in exhaled breath and has potential to detect ILD non-invasively. We assessed the accuracy of differentiating breath profiles of patients with ILD from patients with asthma, chronic obstructive pulmonary disease (COPD), and lung cancer using eNose technology. METHODS Patients with ILD, asthma, COPD, and lung cancer, regardless of stage or treatment, were included in a cross-sectional study in two hospitals. Exhaled breath was analysed using an eNose (SpiroNose) and clinical data were collected. Datasets were split in training and test sets for independent validation of the model. Data were analyzed with partial least squares discriminant and receiver operating characteristic analyses. RESULTS 161 patients with ILD and 161 patients with asthma (n = 65), COPD (n = 50) or lung cancer (n = 46) were included. Breath profiles of patients with ILD differed from all other diseases with an area under the curve (AUC) of 0.99 (95% CI 0.97-1.00) in the test set. Moreover, breath profiles of patients with ILD could be accurately distinguished from the individual diseases with an AUC of 1.00 (95% CI 1.00-1.00) for asthma, AUC of 0.96 (95% CI 0.90-1.00) for COPD, and AUC of 0.98 (95% CI 0.94-1.00) for lung cancer in test sets. Results were similar after excluding patients who never smoked. CONCLUSIONS Exhaled breath of patients with ILD can be distinguished accurately from patients with other respiratory diseases using eNose technology. eNose has high potential as an easily accessible point-of-care medical test for identification of ILD amongst patients with respiratory symptoms, and could possibly facilitate earlier referral and diagnosis of patients suspected of ILD.
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Affiliation(s)
- Iris G van der Sar
- Department of Respiratory Medicine, Center of Excellence for Interstitial Lung Disease, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Marlies S Wijsenbeek
- Department of Respiratory Medicine, Center of Excellence for Interstitial Lung Disease, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Gert-Jan Braunstahl
- Department of Respiratory Medicine, Center of Excellence for Interstitial Lung Disease, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Respiratory Medicine, Franciscus Gasthuis & Vlietland, Center of Excellence for Asthma, COPD, and Respiratory Allergy, Rotterdam, The Netherlands
| | - Jason O Loekabino
- Department of Respiratory Medicine, Center of Excellence for Interstitial Lung Disease, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Anne-Marie C Dingemans
- Department of Respiratory Medicine, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, The Netherlands
| | - Johannes C C M In 't Veen
- Department of Respiratory Medicine, Center of Excellence for Interstitial Lung Disease, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Respiratory Medicine, Franciscus Gasthuis & Vlietland, Center of Excellence for Asthma, COPD, and Respiratory Allergy, Rotterdam, The Netherlands
| | - Catharina C Moor
- Department of Respiratory Medicine, Center of Excellence for Interstitial Lung Disease, Erasmus University Medical Center, Rotterdam, The Netherlands.
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Wojcik R, Morris A. Aiming to Improve Equity in Lung Health: Sex and Gender. Clin Chest Med 2023; 44:613-622. [PMID: 37517839 DOI: 10.1016/j.ccm.2023.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Sex and gender impact risk factors, presentations of, and response to therapy in lung diseases such as chronic obstructive pulmonary disease, asthma, lung cancer, interstitial lung disease, and obstructive sleep apnea. Many physicians lack training in the impact of sex and gender on lung disease, resulting in diagnostic delays. Scales and indices taught in the health care system are largely validated in male populations, thereby limiting their application to females. For transgender and lesbian, gay, bisexual, transgender, and questioning + patients, high rates of bias in health care may limit patients' willingness to seek health care.
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Affiliation(s)
- Rachel Wojcik
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Alison Morris
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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Koudstaal T, Wijsenbeek MS. Idiopathic pulmonary fibrosis. Presse Med 2023; 52:104166. [PMID: 37156412 DOI: 10.1016/j.lpm.2023.104166] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/14/2023] [Accepted: 05/02/2023] [Indexed: 05/10/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive devastating lung disease with substantial morbidity. It is associated with cough, dyspnea and impaired quality of life. If left untreated, IPF has a median survival of 3 years. IPF affects ∼3 million people worldwide, with increasing incidence in older patients. The current concept of pathogenesis is that pulmonary fibrosis results from repetitive injury to the lung epithelium, with fibroblast accumulation, myofibroblast activation, and deposition of matrix. These injuries, in combination with innate and adaptive immune responses, dysregulated wound repair and fibroblast dysfunction, lead to recurring tissue remodeling and self-perpetuating fibrosis as seen in IPF. The diagnostic approach includes the exclusion of other interstitial lung diseases or underlying conditions and depends on a multidisciplinary team-based discussion combining radiological and clinical features and well as in some cases histology. In the last decade, considerable progress has been made in the understanding of IPF clinical management, with the availability of two drugs, pirfenidone and nintedanib, that decrease pulmonary lung function decline. However, current IPF therapies only slow disease progression and prognosis remains poor. Fortunately, there are multiple clinical trials ongoing with potential new therapies targeting different disease pathways. This review provides an overview of IPF epidemiology, current insights in pathophysiology, diagnostic and therapeutic management approaches. Finally, a detailed description of current and evolving therapeutic approaches is also provided.
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Affiliation(s)
- Thomas Koudstaal
- Center for Interstitial Lung Diseases and Sarcoidosis, Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands.
| | - Marlies S Wijsenbeek
- Center for Interstitial Lung Diseases and Sarcoidosis, Department of Pulmonary Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
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25
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Herberts MB, Teague TT, Thao V, Sangaralingham LR, Henk HJ, Hovde KT, Dempsey TM, Limper AH. Idiopathic pulmonary fibrosis in the United States: time to diagnosis and treatment. BMC Pulm Med 2023; 23:281. [PMID: 37532984 PMCID: PMC10398946 DOI: 10.1186/s12890-023-02565-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 07/16/2023] [Indexed: 08/04/2023] Open
Abstract
OBJECTIVE Create a timeline of diagnosis and treatment for IPF in the US. DESIGN, SETTING, AND PARTICIPANTS A retrospective analysis was performed in collaboration with the OptumLabs Data Warehouse using an administrative claims database of Medicare Fee for Service beneficiaries. Adults 50 and over with IPF were included (2014 to 2019). EXPOSURE To focus on IPF, the following diagnoses were excluded: post-inflammatory fibrosis, hypersensitivity pneumonitis, rheumatoid arthritis, sarcoidosis, scleroderma, and connective tissue disease. MAIN OUTCOMES AND MEASURES Data were collected from periods prior, during, and following initial clinical diagnosis of IPF. This included prior respiratory diagnoses, number of respiratory-related hospitalizations, anti-fibrotic and oxygen use, and survival. RESULTS A total of 44,891 with IPF were identified. The most common diagnoses prior to diagnosis of IPF were upper respiratory infections (47%), acute bronchitis (13%), other respiratory disease (10%), chronic obstructive pulmonary disease and bronchiectasis (7%), and pneumonia (6%). The average time to a diagnosis of IPF was 2.7 years after initial respiratory diagnosis. Half of patients had two or more respiratory-related hospitalizations prior to IPF diagnosis. Also, 37% of patients were prescribed oxygen prior to diagnosis of IPF. These observations suggest delayed diagnosis. We also observed only 10.4% were treated with anti-fibrotics. Overall survival declined each year after diagnosis with median survival of 2.80 years. CONCLUSIONS AND RELEVANCE Our retrospective cohort demonstrates that IPF is often diagnosed late, usually preceded by other respiratory diagnoses and hospitalizations. Use of available therapies is low and outcomes remain poor.
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Affiliation(s)
- Michelle B Herberts
- Department of Pulmonary and Critical Care Medicine, Mayo Clinic, Gonda 18-South, 200 1st St SW, Rochester, MN, 55905, USA
| | - Taylor T Teague
- Department of Pulmonary and Critical Care Medicine, Mayo Clinic, Gonda 18-South, 200 1st St SW, Rochester, MN, 55905, USA
| | - Viengneesee Thao
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Gonda 18-South, 200 1st St SW, Rochester, MN, 55905, USA
| | - Lindsey R Sangaralingham
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Gonda 18-South, 200 1st St SW, Rochester, MN, 55905, USA
| | - Henry J Henk
- OptumLabs ®, 1 Main Street #10, Cambridge, MA, 02142, USA
| | - Kevin T Hovde
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Gonda 18-South, 200 1st St SW, Rochester, MN, 55905, USA
| | - Timothy M Dempsey
- Department of Pulmonary and Critical Care Medicine, Mayo Clinic, Gonda 18-South, 200 1st St SW, Rochester, MN, 55905, USA
- David Grant Medical Center, US Air Force, Travis AFB, CA, 94535, USA
| | - Andrew H Limper
- Department of Pulmonary and Critical Care Medicine, Mayo Clinic, Gonda 18-South, 200 1st St SW, Rochester, MN, 55905, USA.
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Gonda 18-South, 200 1st St SW, Rochester, MN, 55905, USA.
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Alsomali H, Palmer E, Aujayeb A, Funston W. Early Diagnosis and Treatment of Idiopathic Pulmonary Fibrosis: A Narrative Review. Pulm Ther 2023; 9:177-193. [PMID: 36773130 PMCID: PMC10203082 DOI: 10.1007/s41030-023-00216-0] [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: 11/23/2022] [Accepted: 01/19/2023] [Indexed: 02/12/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive fibrosing interstitial lung disease of unknown aetiology. Patients typically present with symptoms of chronic dyspnoea and cough over a period of months to years. IPF has a poor prognosis, with an average life expectancy of 3-5 years from diagnosis if left untreated. Two anti-fibrotic medications (nintedanib and pirfenidone) have been approved for the treatment of IPF. These drugs slow disease progression by reducing decline in lung function. Early diagnosis is crucial to ensure timely treatment selection and improve outcomes. High-resolution computed tomography (HRCT) plays a major role in the diagnosis of IPF. In this narrative review, we discuss the importance of early diagnosis, awareness among primary care physicians, lung cancer screening programmes and early IPF detection, and barriers to accessing anti-fibrotic medications.
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Affiliation(s)
- Hana Alsomali
- Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK
| | - Evelyn Palmer
- Department of Respiratory Medicine, The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, NE1 4LP, UK.
| | - Avinash Aujayeb
- Department of Respiratory Medicine, Northumbria Healthcare NHS Trust, Northumbria Way, Cramlington, NE23 6NZ, UK
| | - Wendy Funston
- Faculty of Medical Sciences, Newcastle University, Newcastle Upon Tyne, NE1 7RU, UK.,Department of Respiratory Medicine, The Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, NE1 4LP, UK
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Nishikiori H, Kuronuma K, Hirota K, Yama N, Suzuki T, Onodera M, Onodera K, Ikeda K, Mori Y, Asai Y, Takagi Y, Honda S, Ohnishi H, Hatakenaka M, Takahashi H, Chiba H. Deep-learning algorithm to detect fibrosing interstitial lung disease on chest radiographs. Eur Respir J 2023; 61:13993003.02269-2021. [PMID: 36202411 PMCID: PMC9932351 DOI: 10.1183/13993003.02269-2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 09/29/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Antifibrotic therapies are available to treat chronic fibrosing interstitial lung diseases (CF-ILDs), including idiopathic pulmonary fibrosis. Early use of these treatments is recommended to slow deterioration of respiratory function and to prevent acute exacerbation. However, identifying patients in the early stages of CF-ILD using chest radiographs is challenging. In this study, we developed and tested a deep-learning algorithm to detect CF-ILD using chest radiograph images. METHOD From the image archive of Sapporo Medical University Hospital, 653 chest radiographs from 263 patients with CF-ILDs and 506 from 506 patients without CF-ILD were identified; 921 were used for deep learning and 238 were used for algorithm testing. The algorithm was designed to output a numerical score ranging from 0 to 1, representing the probability of CF-ILD. Using the testing dataset, the algorithm's capability to identify CF-ILD was compared with that of doctors. A second dataset, in which CF-ILD was confirmed using computed tomography images, was used to further evaluate the algorithm's performance. RESULTS The area under the receiver operating characteristic curve, which indicates the algorithm's detection capability, was 0.979. Using a score cut-off of 0.267, the sensitivity and specificity of detection were 0.896 and 1.000, respectively. These data showed that the algorithm's performance was noninferior to that of doctors, including pulmonologists and radiologists; performance was verified using the second dataset. CONCLUSIONS We developed a deep-learning algorithm to detect CF-ILDs using chest radiograph images. The algorithm's detection capability was noninferior to that of doctors.
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Affiliation(s)
- Hirotaka Nishikiori
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Koji Kuronuma
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kenichi Hirota
- Department of Medical Information Planning, Sapporo Medical University Hospital, Sapporo, Japan
| | - Naoya Yama
- Department of Diagnostic Radiology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | | | - Maki Onodera
- Department of Diagnostic Radiology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Koichi Onodera
- Department of Diagnostic Radiology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kimiyuki Ikeda
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yuki Mori
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yuichiro Asai
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | | | | | - Hirofumi Ohnishi
- Department of Public Health, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Masamitsu Hatakenaka
- Department of Diagnostic Radiology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hiroki Takahashi
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Hirofumi Chiba
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan
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28
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Kashkash F, Khorri A. Observational findings of transbronchial lung biopsy in patients with interstitial lung disease: a retrospective study in Aleppo University Hospital. Ann Med Surg (Lond) 2023; 85:146-152. [PMID: 36845790 PMCID: PMC9949756 DOI: 10.1097/ms9.0000000000000180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 12/24/2022] [Indexed: 02/28/2023] Open
Abstract
Clinicians face a significant obstacle when attempting to diagnose interstitial lung disease (ILD) patients. However, a thorough clinical examination together with the proper imaging and diagnostic techniques may provide a reliable diagnosis of a particular kind of ILD, and invasive tests such as rigid bronchoscopy or surgical lung biopsy may not be necessary. The aim of this study is to determine the histologic outcomes of an ILD transbronchial lung biopsy (TBLB) carried out at the university hospital in Aleppo. Methods This retrospective cohort research was done between 1 January 2020 and 18 April 2022 at the pulmonary department of Aleppo University Hospital, Syria, using patient records. In our study, 174 patients were examined. We included patients over the age of 18 who were referred or admitted to our department at Aleppo University Hospital after being diagnosed with diffuse parenchymal lung disease based on high-resolution computed tomography and clinical symptoms, while excluding other respiratory diseases such as tuberculosis and coronavirus disease 2019. Results Patients in the research were 53±7.1 years old on average. Cough and dyspnea were the most common clinical complaints among the patients, which accounted for 79.12 and 78.16%, respectively. A significant fraction of ground-glass opacity was detected on the high-resolution computed tomography, amounting to 102 (58.62%) and 74 (42.53%) for the reticular lesions, respectively. As a complication there were 40 patients with bleeding, of whom 24 had moderate bleeding, and 11 had major bleeding. We also had three patients with pneumothorax. The diagnostic yield of the TBLB in our ILD patients was 66.66%. Conclusion An adequate diagnostic accuracy (66.66%) was detected in the TBLB in confirming the diagnosis of ILD; in addition, the bleeding was the most prevalent complication of this procedure. More interventional studies are needed to compare the diagnostic accuracy of this procedure with other invasive and noninvasive diagnostic methodologies of ILD.
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Affiliation(s)
- Fateh Kashkash
- Department of Pulmonology, Faculty of Medicine, Aleppo University Hospital, University of Aleppo, Aleppo, Syria
| | - Abdullah Khorri
- Department of Pulmonology, Faculty of Medicine, Aleppo University Hospital, University of Aleppo, Aleppo, Syria
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Johansen MB, Bendstrup E, Davidsen JR, Shaker SB, Martin HM. The diagnostic trajectories of Danish patients with autoimmune rheumatologic disease associated interstitial lung disease: an interview-based study. Eur Clin Respir J 2023; 10:2178601. [PMID: 36891195 PMCID: PMC9987749 DOI: 10.1080/20018525.2023.2178601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Background Autoimmune rheumatologic disease associated interstitial lung diseases (ARD-ILD) are rare conditions and the association between ARDs and respiratory symptoms often goes unrecognised by ARD patients and general practitioners (GPs). The diagnostic trajectory from the first respiratory symptoms to an ARD-ILD diagnosis is often delayed and may increase the burden of symptoms and allow further disease progression.The aim of this study was to 1) characterise the diagnostic trajectories of ARD-ILD patients and to 2) identify barriers for obtaining a timely ILD diagnosis based on the experiences and perceptions of both patients and healthcare professionals. Method Semi-structured qualitative interviews were conducted with Danish ARD-ILD patients, rheumatologists, pulmonologists and ILD nurses. Results Sixteen patients, six rheumatologists, three ILD nurses and three pulmonologists participated. Five characteristics of diagnostic trajectories were identified in the patient interviews: 1) early referral to lung specialists; 2) early delay; 3) delay or shortcut depending on specific circumstances; 4) parallel diagnostic trajectories connected late in the process; 5) early identification of lung involvement without proper interpretation. With the exception of early referral to lung specialists, all of the diagnostic trajectory characteristics identified led to delayed diagnosis. Delayed diagnostic trajectories resulted in patients experiencing increased uncertainty. Inconsistent disease terminology, insufficient knowledge and lack of awareness of ARD-ILD among central healthcare professionals and delayed referral to ILD specialists were main contributors to the diagnostic delay identified by the informants. Conclusion Five characteristics of the diagnostic trajectories were identified, four of which led to diagnostic delay of ARD-ILD. Improved diagnostic trajectories can shorten the diagnostic trajectory and increase early access to appropriate specialist medical care. Improved awareness and expertise in ARD-ILD across different medical specialties, especially among GPs, may contribute to more efficient and timely diagnostic trajectories and improved patient experiences.
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Affiliation(s)
- M B Johansen
- VIVE Health, The Danish Center for Social Science Research, Copenhagen, Denmark
| | - E Bendstrup
- Center for Rare Lung Diseases, Department of Respiratory Disease and Allergy, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - J R Davidsen
- South Danish Center for Interstitial Lung Diseases (SCILS), Department of Respiratory Medicine, Odense University Hospital, Odense, Denmark.,Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - S B Shaker
- Department of Respiratory Medicine, Herlev-Gentofte Hospital, Gentofte, Denmark
| | - H M Martin
- VIVE Health, The Danish Center for Social Science Research, Copenhagen, Denmark.,SDCC Trial Unit, Steno Diabetes Center Copenhagen, Herlev, Denmark
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30
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Zheng Q, Otahal P, Cox IA, de Graaff B, Campbell JA, Ahmad H, Walters EH, Palmer AJ. The influence of immortal time bias in observational studies examining associations of antifibrotic therapy with survival in idiopathic pulmonary fibrosis: A simulation study. Front Med (Lausanne) 2023; 10:1157706. [PMID: 37113607 PMCID: PMC10126672 DOI: 10.3389/fmed.2023.1157706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/27/2023] [Indexed: 04/29/2023] Open
Abstract
Background Immortal time bias (ITB) has been overlooked in idiopathic pulmonary fibrosis (IPF). We aimed to identify the presence of ITB in observational studies examining associations between antifibrotic therapy and survival in patients with IPF and illustrate how ITB may affect effect size estimates of those associations. Methods Immortal time bias was identified in observational studies using the ITB Study Assessment Checklist. We used a simulation study to illustrate how ITB may affect effect size estimates of antifibrotic therapy on survival in patients with IPF based on four statistical techniques including time-fixed, exclusion, time-dependent and landmark methods. Results Of the 16 included IPF studies, ITB was detected in 14 studies, while there were insufficient data for assessment in two others. Our simulation study showed that use of time-fixed [hazard ratio (HR) 0.55, 95% confidence interval (CI) 0.47-0.64] and exclusion methods (HR 0.79, 95% CI 0.67-0.92) overestimated the effectiveness of antifibrotic therapy on survival in simulated subjects with IPF, in comparison of the time-dependent method (HR 0.93, 95% CI 0.79-1.09). The influence of ITB was mitigated using the 1 year landmark method (HR 0.69, 95% CI 0.58-0.81), compared to the time-fixed method. Conclusion The effectiveness of antifibrotic therapy on survival in IPF can be overestimated in observational studies, if ITB is mishandled. This study adds to the evidence for addressing the influence of ITB in IPF and provides several recommendations to minimize ITB. Identifying the presence of ITB should be routinely considered in future IPF studies, with the time-dependent method being an optimal approach to minimize ITB.
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Affiliation(s)
- Qiang Zheng
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
- NHMRC Centre of Research Excellence for Pulmonary Fibrosis, Camperdown, NSW, Australia
- Department of Anaesthesiology (High–Tech Branch), First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Petr Otahal
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Ingrid A. Cox
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
- NHMRC Centre of Research Excellence for Pulmonary Fibrosis, Camperdown, NSW, Australia
| | - Barbara de Graaff
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
- NHMRC Centre of Research Excellence for Pulmonary Fibrosis, Camperdown, NSW, Australia
| | - Julie A. Campbell
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
| | - Hasnat Ahmad
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
- Australian Government Department of Health and Aged Care, Tasmania (TAS) Office, Hobart, TAS, Australia
| | - E. Haydn Walters
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
- NHMRC Centre of Research Excellence for Pulmonary Fibrosis, Camperdown, NSW, Australia
- School of Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Andrew J. Palmer
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS, Australia
- NHMRC Centre of Research Excellence for Pulmonary Fibrosis, Camperdown, NSW, Australia
- *Correspondence: Andrew J. Palmer,
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31
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Li S, Zhao P, Wang C, Xia Y, Wang H, Qi W. Hotspots and Frontiers of Host Immune Response in Idiopathic Pulmonary Fibrosis: A Bibliometric and Scientific Visual Research from 2000 to 2022. J Immunol Res 2023; 2023:4835710. [PMID: 37124548 PMCID: PMC10132898 DOI: 10.1155/2023/4835710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 05/02/2023] Open
Abstract
Background Idiopathic pulmonary fibrosis (IPF) is a disease with significant morbidity, progressive deterioration of lung function till death, and lack of effective treatment options. This study aims to explore the global research trends in IPF and immune response to predict the research hotspot in the future. Materials and methods. All related publications on IPF and immune response since the establishment of diagnostic criteria for IPF were retrieved using the Web of Science (WOS) database. VOSviewer, GraphPad Prism 6, CiteSpace version 5.6. R5 64-bit, and a bibliometrics online platform were used to extract and analyze the trends in relevant fields. Results From March 1, 2000, to September 30, 2022, a total of 658 articles with 25,126 citations met the inclusion criteria. The United States ranked first in number of publications (n = 217), number of citations (n = 14,745), and H-index (62). China ranked second in publications (n = 124) and seventh and fifth for citation frequency and H-index, respectively. The American Journal of Respiratory and Critical Care Medicine (impact factor = 30.528) published the most articles in the field. The author Kaminski N. from the United States was the most influential author with 26 publications and an H-index of 24. Among the 52 keywords that co-occurred at least 20 times, the main keywords were concentrated in "Inflammation related" and "Biomarker related" clusters. "biomarker" (AAY 2018.64, 25 times) was a newly emerged keyword. Conclusions The United States has an unequivocal advantage in IPF and immunization, but China shows a faster developing trend. The American Journal of Respiratory and Critical Care Medicine should be prioritized for leading articles. This study indicates that exploration of ideal immune-related biomarkers to provide evidence for the clinical work of IPF might be a hotspot in the near future.
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Affiliation(s)
- Shirong Li
- Department of Infectious Disease, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Pengyue Zhao
- Department of General Surgery, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Chao Wang
- Department of Infectious Disease, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Yun Xia
- Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan 430000, China
| | - Haoyan Wang
- Department of Respiratory, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Wenjie Qi
- Department of Infectious Disease, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
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32
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Patel AS, Miller E, Regis SM, Hunninghake GM, Price LL, Gawlik M, McKee AB, Rieger-Christ KM, Pinto-Plata V, Liesching TN, Wald C, Hashim J, McKee BJ, Gazourian L. Interstitial lung abnormalities in a large clinical lung cancer screening cohort: association with mortality and ILD diagnosis. Respir Res 2023; 24:49. [PMID: 36782326 PMCID: PMC9926562 DOI: 10.1186/s12931-023-02359-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Interstitial lung abnormalities (ILA) are CT findings suggestive of interstitial lung disease in individuals without a prior diagnosis or suspicion of ILD. Previous studies have demonstrated that ILA are associated with clinically significant outcomes including mortality. The aim of this study was to determine the prevalence of ILA in a large CT lung cancer screening program and the association with clinically significant outcomes including mortality, hospitalizations, cancer and ILD diagnosis. METHODS This was a retrospective study of individuals enrolled in a CT lung cancer screening program from 2012 to 2014. Baseline and longitudinal CT scans were scored for ILA per Fleischner Society guidelines. The primary analyses examined the association between baseline ILA and mortality, all-cause hospitalization, and incidence of lung cancer. Kaplan-Meier plots were generated to visualize the associations between ILA and lung cancer and all-cause mortality. Cox regression proportional hazards models were used to test for this association in both univariate and multivariable models. RESULTS 1699 subjects met inclusion criteria. 41 (2.4%) had ILA and 101 (5.9%) had indeterminate ILA on baseline CTs. ILD was diagnosed in 10 (24.4%) of 41 with ILA on baseline CT with a mean time from baseline CT to diagnosis of 4.47 ± 2.72 years. On multivariable modeling, the presence of ILA remained a significant predictor of death, HR 3.87 (2.07, 7.21; p < 0.001) when adjusted for age, sex, BMI, pack years and active smoking, but not of lung cancer and all-cause hospital admission. Approximately 50% with baseline ILA had progression on the longitudinal scan. CONCLUSIONS ILA identified on baseline lung cancer screening exams are associated with all-cause mortality. In addition, a significant proportion of patients with ILA are subsequently diagnosed with ILD and have CT progression on longitudinal scans. TRIAL REGISTRATION NUMBER ClinicalTrials.gov; No.: NCT04503044.
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Affiliation(s)
- Avignat S. Patel
- grid.415731.50000 0001 0725 1353Division of Pulmonary and Critical Care Medicine, Department of Medicine, Lahey Hospital and Medical Center, Burlington, MA 01805 USA ,grid.67033.310000 0000 8934 4045Tufts University School of Medicine, Boston, MA 02111 USA
| | - Ezra Miller
- grid.415731.50000 0001 0725 1353Division of Pulmonary and Critical Care Medicine, Department of Medicine, Lahey Hospital and Medical Center, Burlington, MA 01805 USA ,grid.67033.310000 0000 8934 4045Tufts University School of Medicine, Boston, MA 02111 USA
| | - Shawn M. Regis
- grid.415731.50000 0001 0725 1353Division of Radiation Oncology, Department of Medicine, Lahey Hospital and Medical Center, Burlington, MA 01805 USA
| | - Gary M. Hunninghake
- grid.62560.370000 0004 0378 8294Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115 USA ,grid.38142.3c000000041936754XHarvard Medical School, Boston, MA 02115 USA
| | - Lori Lyn Price
- grid.67033.310000 0000 8934 4045Institute for Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA 02111 USA ,grid.429997.80000 0004 1936 7531Tufts Clinical and Translational Science Institute, Tufts University, Boston, MA 02111 USA
| | - Melissa Gawlik
- grid.415731.50000 0001 0725 1353Quality and Safety, Lahey Hospital and Medical Center, Burlington, MA 01805 USA
| | - Andrea B. McKee
- grid.415731.50000 0001 0725 1353Division of Radiation Oncology, Department of Medicine, Lahey Hospital and Medical Center, Burlington, MA 01805 USA
| | - Kimberly M. Rieger-Christ
- grid.415731.50000 0001 0725 1353Translational Research, Lahey Hospital and Medical Center, Burlington, MA 01805 USA
| | - Victor Pinto-Plata
- grid.415731.50000 0001 0725 1353Division of Pulmonary and Critical Care Medicine, Department of Medicine, Lahey Hospital and Medical Center, Burlington, MA 01805 USA ,grid.67033.310000 0000 8934 4045Tufts University School of Medicine, Boston, MA 02111 USA
| | - Timothy N. Liesching
- grid.415731.50000 0001 0725 1353Division of Pulmonary and Critical Care Medicine, Department of Medicine, Lahey Hospital and Medical Center, Burlington, MA 01805 USA ,grid.67033.310000 0000 8934 4045Tufts University School of Medicine, Boston, MA 02111 USA
| | - Christoph Wald
- grid.415731.50000 0001 0725 1353Department of Radiology, Lahey Hospital and Medical Center, Burlington, MA 01805 USA
| | - Jeffrey Hashim
- grid.415731.50000 0001 0725 1353Department of Radiology, Lahey Hospital and Medical Center, Burlington, MA 01805 USA
| | - Brady J. McKee
- grid.415731.50000 0001 0725 1353Department of Radiology, Lahey Hospital and Medical Center, Burlington, MA 01805 USA
| | - Lee Gazourian
- grid.415731.50000 0001 0725 1353Division of Pulmonary and Critical Care Medicine, Department of Medicine, Lahey Hospital and Medical Center, Burlington, MA 01805 USA ,grid.67033.310000 0000 8934 4045Tufts University School of Medicine, Boston, MA 02111 USA
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Maher TM, Schiffman C, Kreuter M, Moor CC, Nathan SD, Axmann J, Belloni P, Bengus M, Gilberg F, Kirchgaessler KU, Wijsenbeek MS. A review of the challenges, learnings and future directions of home handheld spirometry in interstitial lung disease. Respir Res 2022; 23:307. [PMID: 36369156 PMCID: PMC9651119 DOI: 10.1186/s12931-022-02221-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/10/2022] [Indexed: 11/13/2022] Open
Abstract
Background Patients with interstitial lung disease (ILD) require regular physician visits and referral to specialist ILD clinics. Difficulties or delays in accessing care can limit opportunities to monitor disease trajectory and response to treatment, and the COVID-19 pandemic has added to these challenges. Therefore, home monitoring technologies, such as home handheld spirometry, have gained increased attention as they may help to improve access to care for patients with ILD. However, while several studies have shown that home handheld spirometry in ILD is acceptable for most patients, data from clinical trials are not sufficiently robust to support its use as a primary endpoint. This review discusses the challenges that were encountered with handheld spirometry across three recent ILD studies, which included home spirometry as a primary endpoint, and highlights where further optimisation and research into home handheld spirometry in ILD is required. Abstract body Rate of decline in forced vital capacity (FVC) as measured by daily home handheld spirometry versus site spirometry was of primary interest in three recently completed studies: STARLINER (NCT03261037), STARMAP and a Phase II study of pirfenidone in progressive fibrosing unclassifiable ILD (NCT03099187). Unanticipated practical and technical issues led to problems with estimating FVC decline. In all three studies, cross-sectional correlations for home handheld versus site spirometry were strong/moderate at baseline and later timepoints, but longitudinal correlations were weak. Other issues observed with the home handheld spirometry data included: high within-patient variability in home handheld FVC measurements; implausible longitudinal patterns in the home handheld spirometry data that were not reflected in site spirometry; and extreme estimated rates of FVC change. Conclusions Home handheld spirometry in ILD requires further optimisation and research to ensure accurate and reliable FVC measurements before it can be used as an endpoint in clinical trials. Refresher training, automated alerts of problems and FVC changes, and patient support could help to overcome some practical issues. Despite the challenges, there is value in incorporating home handheld spirometry into clinical practice, and the COVID-19 pandemic has highlighted the potential for home monitoring technologies to help improve access to care for patients with ILD.
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Ghodrati S, Pugashetti JV, Kadoch MA, Ghasemiesfe A, Oldham JM. Diagnostic Accuracy of Chest Radiography for Detecting Fibrotic Interstitial Lung Disease. Ann Am Thorac Soc 2022; 19:1934-1937. [PMID: 35608402 PMCID: PMC9667806 DOI: 10.1513/annalsats.202112-1377rl] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
| | | | - Michael A. Kadoch
- University of California at DavisSacramento, California
- Sutter Medical Center,Sacramento, California
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35
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Impact of reduction in antifibrotic treatment on mortality in idiopathic pulmonary fibrosis. Respir Med 2022; 204:107015. [DOI: 10.1016/j.rmed.2022.107015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022]
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36
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Screening for idiopathic pulmonary fibrosis using comorbidity signatures in electronic health records. Nat Med 2022; 28:2107-2116. [PMID: 36175678 DOI: 10.1038/s41591-022-02010-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 08/12/2022] [Indexed: 11/09/2022]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a lethal fibrosing interstitial lung disease with a mean survival time of less than 5 years. Nonspecific presentation, a lack of effective early screening tools, unclear pathobiology of early-stage IPF and the need for invasive and expensive procedures for diagnostic confirmation hinder early diagnosis. In this study, we introduce a new screening tool for IPF in primary care settings that requires no new laboratory tests and does not require recognition of early symptoms. Using subtle comorbidity signatures identified from the history of medical encounters of individuals, we developed an algorithm, called the zero-burden comorbidity risk score for IPF (ZCoR-IPF), to predict the future risk of an IPF diagnosis. ZCoR-IPF was trained on a national insurance claims database and validated on three independent databases, comprising a total of 2,983,215 participants, with 54,247 positive cases. The algorithm achieved positive likelihood ratios greater than 30 at a specificity of 0.99 across different cohorts, for both sexes, and for participants with different risk states and history of confounding diseases. The area under the receiver-operating characteristic curve for ZCoR-IPF in predicting IPF exceeded 0.88 and was approximately 0.84 at 1 and 4 years before a conventional diagnosis, respectively. Thus, if adopted, ZCoR-IPF can potentially enable earlier diagnosis of IPF and improve outcomes of disease-modifying therapies and other interventions.
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37
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Górska K, Maskey-Warzęchowska M, Barnaś M, Białas A, Barczyk A, Jagielska-Len H, Jassem E, Kania A, Lewandowska K, Majewski S, Martusewicz-Boros MM, Piotrowski WJ, Siemińska A, Sładek K, Sobiecka M, Trzaska-Sobczak M, Tomkowski W, Żołnowska B, Krenke R. Therapeutic decisions in a cohort of patients with idiopathic pulmonary fibrosis: a multicenter, prospective survey from Poland. Ther Adv Chronic Dis 2022; 13:20406223221117982. [PMID: 36052286 PMCID: PMC9425901 DOI: 10.1177/20406223221117982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 07/19/2022] [Indexed: 11/16/2022] Open
Abstract
Background Pirfenidone and nintedanib are considered as the standard of care in idiopathic pulmonary fibrosis (IPF), but there is no consensus as to which of these two agents should be regarded as first-line treatment. Objective To provide real-world data on therapeutic decisions of pulmonary specialists, particularly the choice of the antifibrotic drug in patients with IPF. Methods This was a multicenter, prospective survey collecting clinical data of patients with IPF considered as candidates for antifibrotic treatment between September 2019 and December 2020. Clinical characteristics and information on the therapeutic approach were retrieved. Statistical evaluation included multiple logistic regression analysis with stepwise model selection. Results Data on 188 patients [74.5% male, median age 73 (interquartile range, 68-78) years] considered for antifibrotic therapy were collected. Treatment was initiated in 138 patients, while 50 patients did not receive an antifibrotic, mainly due to the lack of consent for treatment and IPF severity. Seventy-two patients received pirfenidone and 66 received nintedanib. Dosing protocol (p < 0.01) and patient preference (p = 0.049) were more frequently associated with the choice of nintedanib, while comorbidity profile (p = 0.0003) and concomitant medication use (p = 0.03) were more frequently associated with the choice of pirfenidone. Age (p = 0.002), lung transfer factor for carbon monoxide (TLCO) (p = 0.001), and gastrointestinal bleeding (p = 0.03) were significantly associated with the qualification for the antifibrotic treatment. Conclusion This real-world prospective study showed that dose protocol and patient preference were more frequently associated with the choice of nintedanib, while the comorbidity profile and concomitant medication use were more frequently associated with the choice of pirfenidone. Age, TLCO, and history of gastrointestinal bleeding were significant factors influencing the decision to initiate antifibrotic therapy.
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Affiliation(s)
- Katarzyna Górska
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
| | - Marta Maskey-Warzęchowska
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
| | - Małgorzata Barnaś
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Adam Białas
- Department of Pathobiology of Respiratory Diseases, Medical University of Lodz, Lodz, Poland
| | - Adam Barczyk
- Department of Pneumonology, Medical University of Silesia, Katowice, Poland
| | - Hanna Jagielska-Len
- Clinical Department of Lung Diseases, K. Marcinkowski University Hospital, Zielona Gora, Poland
| | - Ewa Jassem
- Department of Pneumonology, Medical University of Gdańsk, Gdańsk, Poland
| | - Aleksander Kania
- Department of Pulmonology, Jagiellonian University Medical College, Kraków, Poland
| | - Katarzyna Lewandowska
- 1st Lung Diseases Department, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | | | - Magdalena M Martusewicz-Boros
- 3rd Lung Diseases and Oncology Department, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | | | - Alicja Siemińska
- Department of Allergology, Medical University of Gdańsk, Gdańsk, Poland
| | - Krzysztof Sładek
- Department of Pulmonology, Jagiellonian University Medical College, Kraków, Poland
| | - Małgorzata Sobiecka
- 1st Lung Diseases Department, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | | | - Witold Tomkowski
- 1st Lung Diseases Department, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | - Beata Żołnowska
- 1st Lung Diseases Department, National Tuberculosis and Lung Diseases Research Institute, Warsaw, Poland
| | - Rafał Krenke
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, Poland
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38
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Palmer E, Kavanagh E, Visram S, Bourke AM, Forrest I, Exley C. When should palliative care be introduced for people with progressive fibrotic interstitial lung disease? A meta-ethnography of the experiences of people with end-stage interstitial lung disease and their family carers. Palliat Med 2022; 36:1171-1185. [PMID: 35694777 PMCID: PMC9446428 DOI: 10.1177/02692163221101753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
BACKGROUND Little is currently known about the perspectives of people with interstitial lung disease and their carers in relation to the timing of palliative care conversations. AIM To establish patients' and carers' views on palliative care in interstitial lung disease and identify an optimum time to introduce the concept of palliative care. DESIGN Meta-ethnography of qualitative evidence. The review protocol was prospectively registered with PROSPERO (CRD42021243179). DATA SOURCES Five electronic healthcare databases were searched (Medline, Embase, CINAHL, Scopus and Web of Science) from 1st January 1996 to 31st March 2022. Studies were included that used qualitative methodology and included patients' or carers' perspectives on living with end-stage disease or palliative care. Quality was assessed using the Critical Appraisal Skills Programme checklist. RESULTS About 1779 articles were identified by initial searches. Twelve met the inclusion criteria, providing evidence from 266 individuals across five countries. Three stages were identified in the illness journey of a person with interstitial lung disease: (1) Information seeking, (2) Grief and adjustment, (3) Fear of the future. Palliative care involvement was believed to be most appropriate in the latter two stages and should be prompted by changes in patients' health such as respiratory infections, onset of new symptoms, hospital admission, decline in physical function and initiation of oxygen. CONCLUSIONS Patients and carers prefer referral to palliative care services to be prompted by changes in health status. Future research should focus on supporting timely recognition of changes in patients' health status and how to respond in a community setting.
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Affiliation(s)
- Evelyn Palmer
- Royal Victoria Infirmary, Newcastle upon Tyne, UK.,Marie Curie Hospice Newcastle, Newcastle upon Tyne, UK.,Population Health Sciences, Newcastle University, Newcastle upon Tyne, UK
| | | | - Shelina Visram
- Population Health Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Anne-Marie Bourke
- Royal Victoria Infirmary, Newcastle upon Tyne, UK.,Marie Curie Hospice Newcastle, Newcastle upon Tyne, UK
| | - Ian Forrest
- Royal Victoria Infirmary, Newcastle upon Tyne, UK
| | - Catherine Exley
- Population Health Sciences, Newcastle University, Newcastle upon Tyne, UK
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Hoffman TW, van Es HW, Biesma DH, Grutters JC. Potential interstitial lung abnormalities on chest X-rays prior to symptoms of idiopathic pulmonary fibrosis. BMC Pulm Med 2022; 22:329. [PMID: 36038862 PMCID: PMC9426013 DOI: 10.1186/s12890-022-02122-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/22/2022] [Indexed: 11/11/2022] Open
Abstract
Background Idiopathic pulmonary fibrosis (IPF) often has significant diagnostic delay. At present it is not well-known what factors associate with time to diagnosis and if this is associated with survival after the diagnosis. There has also been increasing attention for interstitial lung abnormalities on chest CT-scans. In this study we assessed what factors associate with time to diagnosis in patients with IPF, and whether early stages of pulmonary fibrosis can be seen on chest X-rays prior to the start of symptoms. Methods In this retrospective study, 409 Dutch patients with IPF were included. Clinical characteristics, including patient demographics, medical history, time of start of symptoms, time of first visit to pulmonologist, and any previous radiographic imaging reports were collected from patient records. Results In 96 patients (23%) a chest X-ray was available that had been made prior to the start of symptoms (median of 50.5 months (IQR 26.3–83.3 months)), and this showed potential interstitial lung abnormalities in 56 patients (58%). The median time from the start of symptoms to the final diagnosis was 24.0 months (interquartile range 9.0–48.0 months). In a multivariate model that corrected for diffusion capacity of the lung for carbon monoxide, forced vital capacity, sex, and age at diagnosis, time to diagnosis did not associate with survival (hazard ratio 1.051 (95% CI 0.800–1.380; p = 0.72)). Conclusions There is a significant diagnostic delay for patients with IPF, but longer time to diagnosis did not associate with survival. Interstitial lung abnormalities were seen in more than half of the patients in whom a chest X-ray had been made prior to the start of symptoms. This illustrates that a computed tomography scan should be strongly considered for analysis of unexplained abnormalities on a chest X-ray. This could facilitate early detection and possibly prevention of disease progression for patients with pulmonary fibrosis. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-02122-8.
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Affiliation(s)
- T W Hoffman
- Interstitial Lung Diseases Center of Excellence, Department of Pulmonology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands.
| | - H W van Es
- Department of Radiology, St. Antonius Hospital, Nieuwegein/Utrecht, The Netherlands
| | - D H Biesma
- Department of Internal Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - J C Grutters
- Interstitial Lung Diseases Center of Excellence, Department of Pulmonology, St. Antonius Hospital, Koekoekslaan 1, 3435 CM, Nieuwegein, The Netherlands.,Division of Heart and Lungs, University Medical Center, Utrecht, The Netherlands
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Hoyer N, Prior TS, Bendstrup E, Shaker SB. Diagnostic delay in IPF impacts progression-free survival, quality of life and hospitalisation rates. BMJ Open Respir Res 2022; 9:9/1/e001276. [PMID: 35798532 PMCID: PMC9263910 DOI: 10.1136/bmjresp-2022-001276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 06/27/2022] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND The diagnosis of idiopathic pulmonary fibrosis (IPF) is often delayed up to several years. The objective of this study was to assess the impact of the diagnostic delay on progression-free survival, quality of life and hospitalisation rates. METHODS A total of 264 incident patients with IPF were included immediately after their diagnosis and followed for up to 5 years, with regular collection of clinical data, quality-of-life questionnaires and assessment of disease progression. Hospitalisation data were extracted from electronic patient records. Analyses were performed on the entire cohort and strata according to forced vital capacity (FVC) at diagnosis. RESULTS A long diagnostic delay (>1 year) was associated with worse progression-free survival compared with a short diagnostic delay (<1 year) (HR: 1.70, 95% CI: 1.18 to 2.46, p=0.004) especially in patients with mild disease at the time of diagnosis (FVC>80% predicted). Mean total scores of the St. George's respiratory questionnaire (SGRQ), a derived IPF-specific version of the SGRQ and the chronic obstructive pulmonary disease assessment test (CAT) were consistently higher in patients with long diagnostic delays, indicating worse quality of life. Mean hospitalisation rates were higher during the first year after diagnosis (Incidence rate ratio [IRR]: 3.28, 95% CI: 1.35 to 8.55, p=0.01) and during the entire follow-up (IRR: 1.74, 95% CI: 1.01 to 3.02, p=0.04). CONCLUSION A diagnostic delay of more than 1 year negatively impacts progression-free survival, quality of life and hospitalisation rates in patients with IPF. These findings highlight the importance of an early diagnosis for proper management of IPF. TRIAL REGISTRATION NUMBER NCT02755441.
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Affiliation(s)
- Nils Hoyer
- Department of Respiratory Medicine, Gentofte University Hospital, Hellerup, Hovedstaden, Denmark
| | - Thomas Skovhus Prior
- Centre for Rare Lung Diseases, Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - Elisabeth Bendstrup
- Centre for Rare Lung Diseases, Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
| | - Saher Burhan Shaker
- Department of Respiratory Medicine, Gentofte University Hospital, Hellerup, Hovedstaden, Denmark
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Benito-Lozano J, Arias-Merino G, Gómez-Martínez M, Ancochea-Díaz A, Aparicio-García A, Posada de la Paz M, Alonso-Ferreira V. Diagnostic Process in Rare Diseases: Determinants Associated with Diagnostic Delay. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116456. [PMID: 35682039 PMCID: PMC9180264 DOI: 10.3390/ijerph19116456] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 02/01/2023]
Abstract
Many people living with rare disease (RD) report a difficult diagnostic process from the symptom onset until they obtain the definitive diagnosis. The aim of this study was thus to ascertain the diagnostic process in RDs, and explore the determinants related with having to wait for more than one year in this process (defined as “diagnostic delay”). We conducted a case–control study, using a purpose-designed form from the Spanish Rare Diseases Patient Registry for data-collection purposes. A descriptive analysis was performed and multivariate backward logistic regression models fitted. Based on data on 1216 patients living with RDs, we identified a series of determinants associated with experiencing diagnostic delay. These included: having to travel to see a specialist other than that usually consulted in the patient’s home province (OR 2.1; 95%CI 1.6–2.9); visiting more than 10 specialists (OR 2.6; 95%CI 1.7–4.0); being diagnosed in a region other than that of the patient’s residence at the date of symptom onset (OR 2.3; 95%CI 1.5–3.6); suffering from a RD of the nervous system (OR 1.4; 95%CI 1.0–1.8). In terms of time taken to see a specialist, waiting more than 6 months to be referred from the first medical visit was the period of time which most contributed to diagnostic delay (PAR 30.2%). In conclusion, this is the first paper to use a collaborative study based on a nationwide registry to address the diagnostic process of patients living with RDs. While the evidence shows that the diagnostic process experienced by these persons is complex, more studies are needed to determine the implications that this has for their lives and those of their families at a social, educational, occupational, psychological, and financial level.
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Affiliation(s)
- Juan Benito-Lozano
- Institute of Rare Diseases Research (IIER), Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.B.-L.); (G.A.-M.); (M.G.-M.); (M.P.d.l.P.)
- Universidad Nacional de Educación a Distancia (UNED), 28015 Madrid, Spain
| | - Greta Arias-Merino
- Institute of Rare Diseases Research (IIER), Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.B.-L.); (G.A.-M.); (M.G.-M.); (M.P.d.l.P.)
| | - Mario Gómez-Martínez
- Institute of Rare Diseases Research (IIER), Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.B.-L.); (G.A.-M.); (M.G.-M.); (M.P.d.l.P.)
| | | | - Aitor Aparicio-García
- The State Reference Center for Assistance to People Living with Rare Diseases and Their Families (CREER), Centro de Referencia Estatal de Atención a Personas con Enfermedades Raras y sus Familias, Dependiente del IMSERSO, 09001 Burgos, Spain;
| | - Manuel Posada de la Paz
- Institute of Rare Diseases Research (IIER), Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.B.-L.); (G.A.-M.); (M.G.-M.); (M.P.d.l.P.)
| | - Verónica Alonso-Ferreira
- Institute of Rare Diseases Research (IIER), Instituto de Salud Carlos III, 28029 Madrid, Spain; (J.B.-L.); (G.A.-M.); (M.G.-M.); (M.P.d.l.P.)
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-91-822-2089
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Silva M, Fernandes A, Pereira AR, Madanelo S, Clemêncio T, Ferreira PG. Awareness towards the main ILD among primary care physicians. Multidiscip Respir Med 2022; 17:848. [PMID: 35558644 PMCID: PMC9088858 DOI: 10.4081/mrm.2022.848] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 03/31/2022] [Indexed: 11/23/2022] Open
Abstract
Background: Interstitial lung diseases (ILDs) comprise a group of multiple entities sharing some clinical, functional and radiological similarities. In many countries primary care setting has been devoid of pre- and post-graduate educational interventions focused on basic knowledge on ILD. This, along with usual nonspecificity of symptoms at presentation, may contribute to diagnostic delay in this disease setting.Methods: We designed a study questionnaire to assess the level of awareness on basic diagnostic and management aspects of core ILDs – idiopathic pulmonary fibrosis (IPF), hypersensitivity pneumonitis, sarcoidosis, connective tissue disease related-ILD and drug-induced ILD - among primary care physicians (GPs) from five “ACeS Baixo Vouga” health centres and to perceive possible weaknesses. Differences in awareness between GPs under 45 and over 45 years-old were also assessed.Results: Globally, 69% of questions were correctly answered but only 21.9% of GPs considered to have a satisfactory self-perceived level of knowledge on ILD. Except sarcoidosis (p=0.017) and some isolated questions on other diseases, no significant differences were found between physicians below 45 years and above. Though, there was a trend to higher awareness in the younger group. The best awareness was seen in sarcoidosis. IPF questions had the worst performance and only 48.5% of GPs recognized the importance of velcro-type crackles in suggesting a possible diagnosis.Conclusion: Specific attention should be devoted to educational interventions directed to GPs on basic notions on the main ILDs. This could improve the usual diagnostic delay in many ILDs, as a timely diagnosis is essential for an early treatment and prolonged patient survival.
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Berges AJ, Lina IA, Chen L, Ospino R, Davis R, Hillel AT. Delayed Diagnosis of Idiopathic Subglottic Stenosis. Laryngoscope 2022; 132:413-418. [PMID: 34369599 PMCID: PMC8742746 DOI: 10.1002/lary.29783] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/04/2021] [Accepted: 07/14/2021] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Idiopathic subglottic stenosis (iSGS) is a rare disease, causing life-threatening dyspnea secondary to scarring. Perhaps because it is rarely encountered, there is often a delay in diagnosing iSGS. The objective of this study is to characterize diagnostic delay of iSGS, factors that prolong delay, and its impact on iSGS patients. STUDY DESIGN Retrospective chart review. METHODS A retrospective chart review of 124 iSGS patients was performed. Times of symptom onset, presentation to otolaryngologist, diagnosis, imaging, pulmonary function testing (PFTs), surgeries, emergency department (ED) visits, and hospitalizations were recorded and univariate analyses were used to identify risk factors for delay. RESULTS The median total time to diagnosis from symptom onset was 24.5 months, with time to first presentation of 6.3 months and healthcare delay of 17.8 months. 54.8% of patients were diagnosed with asthma. Earlier presentation to otolaryngologist was associated with shorter healthcare delay and total time to diagnosis (rho = 0.75, rho = 0.99, P < .0001). Earlier CT imaging was correlated to shorter healthcare delay (rho = 0.84, P < .0001) and total time to diagnosis (rho = 0.74, P < .001), while earlier PFTs were correlated to shorter total time to diagnosis alone (rho = 0.71, P = .01). During evaluation, 10.5% (n = 17/124) of patients had ED visits and 13.7% (n = 13/124) patients were hospitalized. Before diagnosis, 7% (9/124) of patients underwent surgeries (including 3% (n = 4) undergoing tracheostomy) and 8% (n = 10) of patients required unplanned urgent endoscopic surgery that may have been avoided with earlier diagnosis. CONCLUSION iSGS diagnosis is frequently delayed, resulting in additional surgeries (including tracheostomy), ED visits, and hospitalizations. Further, patients' symptoms are commonly attributed to asthma. Earlier otolaryngologist evaluation, PFTs, and CT imaging may expedite iSGS diagnosis. LEVEL OF EVIDENCE 4 Laryngoscope, 132:413-418, 2022.
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Affiliation(s)
- Alexandra J. Berges
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions
| | - Ioan A. Lina
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions
| | - Lena Chen
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions
| | - Rafael Ospino
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions
| | - Ruth Davis
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions
| | - Alexander T. Hillel
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions
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Walentek P. Signaling Control of Mucociliary Epithelia: Stem Cells, Cell Fates, and the Plasticity of Cell Identity in Development and Disease. Cells Tissues Organs 2022; 211:736-753. [PMID: 33902038 PMCID: PMC8546001 DOI: 10.1159/000514579] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/19/2021] [Indexed: 01/25/2023] Open
Abstract
Mucociliary epithelia are composed of multiciliated, secretory, and stem cells and line various organs in vertebrates such as the respiratory tract. By means of mucociliary clearance, those epithelia provide a first line of defense against inhaled particles and pathogens. Mucociliary clearance relies on the correct composition of cell types, that is, the proper balance of ciliated and secretory cells. A failure to generate and to maintain correct cell type composition and function results in impaired clearance and high risk to infections, such as in congenital diseases (e.g., ciliopathies) as well as in acquired diseases, including asthma, chronic obstructive pulmonary disease (COPD), and idiopathic pulmonary fibrosis (IPF). While it remains incompletely resolved how precisely cell types are specified and maintained in development and disease, many studies have revealed important mechanisms regarding the signaling control in mucociliary cell types in various species. Those studies not only provided insights into the signaling contribution to organ development and regeneration but also highlighted the remarkable plasticity of cell identity encountered in mucociliary maintenance, including frequent trans-differentiation events during homeostasis and specifically in disease. This review will summarize major findings and provide perspectives regarding the future of mucociliary research and the treatment of chronic airway diseases associated with tissue remodeling.
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Affiliation(s)
- Peter Walentek
- Renal Division, Department of Medicine, University Hospital Freiburg, Freiburg University Faculty of Medicine, Freiburg, Germany.,CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg, Freiburg, Germany
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Faniyi AA, Hughes MJ, Scott A, Belchamber KBR, Sapey E. Inflammation, Ageing and Diseases of the Lung: Potential therapeutic strategies from shared biological pathways. Br J Pharmacol 2021; 179:1790-1807. [PMID: 34826882 DOI: 10.1111/bph.15759] [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: 06/27/2021] [Revised: 10/07/2021] [Accepted: 11/08/2021] [Indexed: 12/15/2022] Open
Abstract
Lung diseases disproportionately affect elderly individuals. The lungs form a unique environment: a highly elastic organ with gaseous exchange requiring the closest proximity of inhaled air containing harmful agents and the circulating blood volume. The lungs are highly susceptible to senescence, with age and "inflammageing" creating a pro-inflammatory environment with a reduced capacity to deal with challenges. Whilst lung diseases may have disparate causes, the burden of ageing and inflammation provides a common process which can exacerbate seemingly unrelated pathologies. However, these shared pathways may also provide a common route to treatment, with increased interest in drugs which target ageing processes across respiratory diseases. In this review, we will examine the evidence for the increased burden of lung disease in older adults, the structural and functional changes seen with advancing age and assess what our expanding knowledge of inflammation and ageing pathways could mean for the treatment of lung disease.
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Affiliation(s)
- A A Faniyi
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, U.K
| | - M J Hughes
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, U.K
| | - A Scott
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, U.K
| | - K B R Belchamber
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, U.K
| | - E Sapey
- Birmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, U.K
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46
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Jessen H, Hoyer N, Prior TS, Frederiksen P, Rønnow SR, Karsdal MA, Leeming DJ, Bendstrup E, Sand JMB, Shaker SB. Longitudinal serological assessment of type VI collagen turnover is related to progression in a real-world cohort of idiopathic pulmonary fibrosis. BMC Pulm Med 2021; 21:382. [PMID: 34814865 PMCID: PMC8609852 DOI: 10.1186/s12890-021-01684-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 09/29/2021] [Indexed: 12/02/2022] Open
Abstract
Background Remodeling of the extracellular matrix (ECM) is a central mechanism in the progression of idiopathic pulmonary fibrosis (IPF), and remodeling of type VI collagen has been suggested to be associated with disease progression. Biomarkers that reflect and predict the progression of IPF would provide valuable information for clinicians when treating IPF patients. Methods Two serological biomarkers reflecting formation (PRO-C6) and degradation (C6M) of type VI collagen were evaluated in a real-world cohort of 178 newly diagnoses IPF patients. All patients were treatment naïve at the baseline visit. Blood samples and clinical data were collected from baseline, six months, and 12 months visit. The biomarkers were measured by competitive ELISA using monoclonal antibodies. Results Patients with progressive disease had higher (P = 0.0099) serum levels of PRO-C6 compared to those with stable disease over 12 months with an average difference across all timepoints of 12% (95% CI 3–22), whereas C6M levels tended (P = 0.061) to be higher in patients with progressive disease compared with stable patients over 12 months with an average difference across all timepoints of 12% (95% CI − 0.005–27). Patients who did not receive antifibrotic medicine had a greater increase of C6M (P = 0.043) compared to treated patients from baseline over 12 months with an average difference across all timepoints of 12% (95% CI − 0.07–47). There were no differences in biomarker levels between patients receiving pirfenidone or nintedanib. Conclusions Type VI collagen formation was related to progressive disease in patients with IPF in a real-world cohort and antifibrotic therapy seemed to affect the degradation of type VI collagen. Type VI collagen formation and degradation products might be potential biomarkers for disease progression in IPF. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-021-01684-3.
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Affiliation(s)
- Henrik Jessen
- Biomarkers and Research, Nordic Bioscience, Herlev Hovedgade 205-207, 2730, Herlev, Denmark. .,Department of Respiratory Medicine, Herlev and Gentofte University Hospital, Copenhagen, Denmark.
| | - Nils Hoyer
- Department of Respiratory Medicine, Herlev and Gentofte University Hospital, Copenhagen, Denmark
| | - Thomas S Prior
- Department of Respiratory Disease and Allergy, Center for Rare Lung Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Peder Frederiksen
- Biomarkers and Research, Nordic Bioscience, Herlev Hovedgade 205-207, 2730, Herlev, Denmark
| | - Sarah R Rønnow
- Biomarkers and Research, Nordic Bioscience, Herlev Hovedgade 205-207, 2730, Herlev, Denmark
| | - Morten A Karsdal
- Biomarkers and Research, Nordic Bioscience, Herlev Hovedgade 205-207, 2730, Herlev, Denmark
| | - Diana J Leeming
- Biomarkers and Research, Nordic Bioscience, Herlev Hovedgade 205-207, 2730, Herlev, Denmark
| | - Elisabeth Bendstrup
- Department of Respiratory Disease and Allergy, Center for Rare Lung Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Jannie M B Sand
- Biomarkers and Research, Nordic Bioscience, Herlev Hovedgade 205-207, 2730, Herlev, Denmark
| | - Saher B Shaker
- Department of Respiratory Medicine, Herlev and Gentofte University Hospital, Copenhagen, Denmark
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Pryimak N, Zaiachuk M, Kovalchuk O, Kovalchuk I. The Potential Use of Cannabis in Tissue Fibrosis. Front Cell Dev Biol 2021; 9:715380. [PMID: 34708034 PMCID: PMC8542845 DOI: 10.3389/fcell.2021.715380] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/06/2021] [Indexed: 01/06/2023] Open
Abstract
Fibrosis is a condition characterized by thickening or/and scarring of various tissues. Fibrosis may develop in almost all tissues and organs, and it may be one of the leading causes of morbidity and mortality. It provokes excessive scarring that excels the usual wound healing response to trauma in numerous organs. Currently, very little can be done to prevent tissue fibrosis, and it is almost impossible to reverse it. Anti-inflammatory and immunosuppressive drugs are among the few treatments that may be efficient in preventing fibrosis. Numerous publications suggest that cannabinoids and extracts of Cannabis sativa have potent anti-inflammatory and anti-fibrogenic properties. In this review, we describe the types and mechanisms of fibrosis in various tissues and discuss various strategies for prevention and dealing with tissue fibrosis. We further introduce cannabinoids and their potential for the prevention and treatment of fibrosis, and therefore for extending healthy lifespan.
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Affiliation(s)
| | | | - Olga Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada
| | - Igor Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, Canada
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Lancaster L, Bonella F, Inoue Y, Cottin V, Siddall J, Small M, Langley J. Idiopathic pulmonary fibrosis: Physician and patient perspectives on the pathway to care from symptom recognition to diagnosis and disease burden. Respirology 2021; 27:66-75. [PMID: 34611971 PMCID: PMC9135122 DOI: 10.1111/resp.14154] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/23/2021] [Accepted: 09/07/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVE Idiopathic pulmonary fibrosis (IPF) is a chronic progressive disease that requires ongoing care and is associated with considerable socioeconomic burden. We evaluated the IPF care pathway from symptom recognition to treatment. We describe the impact of IPF on healthcare resource use (HCRU), quality of life (QoL) and work impairment, and report differences in patient and physician perspectives using real-world data from France, Germany, Japan and the United States. METHODS Quantitative, point-in-time data were collected as part of the Adelphi IPF II Disease Specific Programme™. Physician-reported data (patient demographics, medical history, diagnoses, treatment) were matched to patient-reported data (HCRU, QoL, work impairment). HCRU was measured as physician visits and hospitalizations. QoL and work impairment were measured using the EuroQol-5 Dimensions (EQ-5D) and Work Productivity and Activity Impairment questionnaires. RESULTS Overall, 244 physicians reported data on 1249 patients, 739 of whom self-reported data. Diagnostic delays of 0.8 (Germany) to 2.0 (Japan) years after symptom onset were reported; treatment initiation was further delayed. In all countries, patients more often reported symptoms in the survey than did their physicians. On average, patients underwent 7-10 clinical tests before diagnosis. Antifibrotic use increased from 57% (2016) to 69% (2019); only 50% of patients with moderate/severe IPF were satisfied with their treatment. The 12-month hospitalization rates were 24% (Japan) to 64% (United States). Patients reported low QoL (mean EQ-5D visual analogue scale: 61.7/100). CONCLUSION Patients with IPF experience considerable diagnostic and treatment delays. More effective therapies and management are needed to reduce the disease burden.
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Affiliation(s)
- Lisa Lancaster
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Francesco Bonella
- Center for Interstitial and Rare Lung Diseases, Pneumology Department, Ruhrlandklinik University Hospital, University Duisburg-Essen, Essen, Germany
| | - Yoshikazu Inoue
- Clinical Research Center, National Hospital Organization Kinki-Chuo Chest Medical Center, Osaka, Japan
| | - Vincent Cottin
- National Coordinating Reference Center for Rare Pulmonary Diseases, Louis Pradel Hospital, University of Lyon, Lyon, France
| | - James Siddall
- Respiratory Research, Adelphi Real World, Bollington, UK
| | - Mark Small
- Respiratory Research, Adelphi Real World, Bollington, UK
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van der Sar IG, Jones S, Clarke DL, Bonella F, Fourrier JM, Lewandowska K, Bermudo G, Simidchiev A, Strambu IR, Wijsenbeek MS, Parfrey H. Patient Reported Experiences and Delays During the Diagnostic Pathway for Pulmonary Fibrosis: A Multinational European Survey. Front Med (Lausanne) 2021; 8:711194. [PMID: 34422866 PMCID: PMC8371687 DOI: 10.3389/fmed.2021.711194] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/12/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: Pulmonary fibrosis includes a spectrum of diseases and is incurable. There is a variation in disease course, but it is often progressive leading to increased breathlessness, impaired quality of life, and decreased life expectancy. Detection of pulmonary fibrosis is challenging, which contributes to considerable delays in diagnosis and treatment. More knowledge about the diagnostic journey from patients' perspective is needed to improve the diagnostic pathway. The aims of this study were to evaluate the time to diagnosis of pulmonary fibrosis, identify potential reasons for delays, and document patients emotions. Methods: Members of European patient organisations, with a self-reported diagnosis of pulmonary fibrosis, were invited to participate in an online survey. The survey assessed the diagnostic pathway retrospectively, focusing on four stages: (1) time from initial symptoms to first appointment in primary care; (2) time to hospital referral; (3) time to first hospital appointment; (4) time to final diagnosis. It comprised open-ended and closed questions focusing on time to diagnosis, factors contributing to delays, diagnostic tests, patient emotions, and information provision. Results: Two hundred and seventy three participants (214 idiopathic pulmonary fibrosis, 28 sarcoidosis, 31 other) from 13 countries responded. Forty percent of individuals took ≥1 year to receive a final diagnosis. Greatest delays were reported in stage 1, with only 50.2% making an appointment within 3 months. For stage 2, 73.3% reported a hospital referral within three primary care visits. However, 9.9% reported six or more visits. After referral, 76.9% of patients were assessed by a specialist within 3 months (stage 3) and 62.6% received a final diagnosis within 3 months of their first hospital visit (stage 4). Emotions during the journey were overall negative. A major need for more information and support during and after the diagnostic process was identified. Conclusion: The time to diagnose pulmonary fibrosis varies widely across Europe. Delays occur at each stage of the diagnostic pathway. Raising awareness about pulmonary fibrosis amongst the general population and healthcare workers is essential to shorten the time to diagnosis. Furthermore, there remains a need to provide patients with sufficient information and support at all stages of their diagnostic journey.
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Affiliation(s)
| | - Steve Jones
- Action for Pulmonary Fibrosis, Lichfield, United Kingdom
| | | | | | | | - Katarzyna Lewandowska
- Department of Pulmonary Diseases, National Research Institute of Tuberculosis and Lung Diseases, Warsaw, Poland
| | | | | | - Irina R Strambu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
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Spagnolo P, Ryerson CJ, Putman R, Oldham J, Salisbury M, Sverzellati N, Valenzuela C, Guler S, Jones S, Wijsenbeek M, Cottin V. Early diagnosis of fibrotic interstitial lung disease: challenges and opportunities. THE LANCET RESPIRATORY MEDICINE 2021; 9:1065-1076. [PMID: 34331867 DOI: 10.1016/s2213-2600(21)00017-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/29/2020] [Accepted: 01/05/2021] [Indexed: 12/17/2022]
Abstract
Many patients with interstitial lung disease (ILD) develop pulmonary fibrosis, which can lead to reduced quality of life and early mortality. Patients with fibrotic ILD often have considerable diagnostic delay, and are exposed to unnecessary and costly diagnostic procedures, and ineffective and potentially harmful treatments. Non-specific and insidious presenting symptoms, along with scarce knowledge of fibrotic ILD among primary care physicians and non-ILD experts, are some of the main causes of diagnostic delay. Here, we outline and discuss the challenges facing both patients and physicians in making an early diagnosis of fibrotic ILD, and explore strategies to facilitate early identification of patients with fibrotic ILD, both in the general population and among individuals at highest risk of developing the disease. Finally, we discuss controversies and key uncertainties in screening programmes for fibrotic ILD. Timely identification and accurate diagnosis of patients with fibrotic ILD poses several substantial clinical challenges, but could potentially improve outcomes through early initiation of appropriate management.
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Affiliation(s)
- Paolo Spagnolo
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Respiratory Disease Unit, University of Padova, Padova, Italy.
| | - Christopher J Ryerson
- Department of Medicine, University of British Columbia and Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada
| | - Rachel Putman
- Division of Pulmonary and Critical Care, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Justin Oldham
- Department of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of California at Davis, Davis, CA, USA
| | - Margaret Salisbury
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nicola Sverzellati
- Department of Surgery, Section of Diagnostic Imaging, University of Parma, Parma, Italy
| | - Claudia Valenzuela
- Instituto de Investigación Princesa, Hospital Universitario de La Princesa, Madrid, Spain
| | - Sabina Guler
- Department of Pulmonary Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Steve Jones
- Action for Pulmonary Fibrosis, Peterborough, UK
| | - Marlies Wijsenbeek
- Department of Respiratory Medicine, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Vincent Cottin
- Department of Respiratory Medicine, National Reference Coordinating Centre for Rare Pulmonary Diseases, Louis Pradel Hospital, Hospices Civils de Lyon, Lyon, France; Department of Respiratory Medicine, Université de Lyon, Université Claude Bernard Lyon 1, UMR754, IVPC, Lyon, France
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