1
|
Shanthikumar S, Gower WA, Srinivasan S, Rayment JH, Robinson PD, Bracken J, Stone A, Das S, Barochia A, Charbek E, Tamae-Kakazu M, Reardon EE, Abts M, Blinman T, Calvo C, Cheng PC, Cole TS, Cooke KR, Davies SM, De A, Gross J, Mechinaud F, Sheshadri A, Siddaiah R, Teusink-Cross A, Towe CT, Walkup LL, Yanik GA, Bergeron A, Casey A, Deterding RR, Liptzin DR, Schultz KR, Iyer NP, Goldfarb S. Detection of Bronchiolitis Obliterans Syndrome after Pediatric Hematopoietic Stem Cell Transplantation: An Official American Thoracic Society Clinical Practice Guideline. Am J Respir Crit Care Med 2024; 210:262-280. [PMID: 38889365 DOI: 10.1164/rccm.202406-1117st] [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: 06/04/2024] [Accepted: 06/18/2024] [Indexed: 06/20/2024] Open
Abstract
Background: Many children undergo allogeneic hematopoietic stem cell transplantation (HSCT) for the treatment of malignant and nonmalignant conditions. Unfortunately, pulmonary complications occur frequently post-HSCT, with bronchiolitis obliterans syndrome (BOS) being the most common noninfectious pulmonary complication. Current international guidelines contain conflicting recommendations regarding post-HSCT surveillance for BOS, and a recent NIH workshop highlighted the need for a standardized approach to post-HSCT monitoring. As such, this guideline provides an evidence-based approach to detection of post-HSCT BOS in children. Methods: A multinational, multidisciplinary panel of experts identified six questions regarding surveillance for, and evaluation of, post-HSCT BOS in children. A systematic review of the literature was undertaken to answer each question. The Grading of Recommendations, Assessment, Development, and Evaluation approach was used to rate the quality of evidence and the strength of recommendations. Results: The panel members considered the strength of each recommendation and evaluated the benefits and risks of applying the intervention. In formulating the recommendations, the panel considered patient and caregiver values, the cost of care, and feasibility. Recommendations addressing the role of screening pulmonary function testing and diagnostic tests in children with suspected post-HSCT BOS were made. Following a Delphi process, new diagnostic criteria for pediatric post-HSCT BOS were also proposed. Conclusions: This document provides an evidence-based approach to the detection of post-HSCT BOS in children while also highlighting considerations for the implementation of each recommendation. Further, the document describes important areas for future research.
Collapse
|
2
|
Ehler ED, Turcotte LM, Skamene S, Baker KS, Das SK, Constine LS, Yuan J, Dusenbery KE. Idiopathic Pneumonitis Syndrome After Total Body Irradiation in Pediatric Patients Undergoing Myeloablative Hematopoietic Stem Cell Transplantation: A PENTEC Comprehensive Review. Int J Radiat Oncol Biol Phys 2024; 119:625-639. [PMID: 36973099 DOI: 10.1016/j.ijrobp.2023.02.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/17/2023] [Accepted: 02/16/2023] [Indexed: 03/29/2023]
Abstract
PURPOSE Pulmonary complications, especially idiopathic pneumonitis syndrome (IPS), are potentially life altering or fatal sequelae of hematopoietic cell transplantation (HCT). Total body irradiation (TBI) as part of the conditioning regimen has been implicated in IPS. A comprehensive PENTEC (Pediatric Normal Tissues in the Clinic) review was performed to increase our understanding of the role of TBI in the development of acute, noninfectious IPS. METHODS AND MATERIALS A systematic literature search was conducted using the MEDLINE, PubMed, and Cochrane library databases for articles describing pulmonary toxicity in children treated with HCT. Data pertaining to TBI and pulmonary endpoints were extracted. Risk of IPS was analyzed in relation to patient age, TBI dose, fractionation, dose rate, lung shielding, timing, and type of transplant, with the goal to better understand factors associated with this complication in children undergoing HCT. A logistic regression model was developed using a subset of studies with comparable transplant regimens and sufficient TBI data. RESULTS Six studies met criteria for modeling of the correlation of TBI parameters with IPS; all consisted of pediatric patients undergoing allogeneic HCT with a cyclophosphamide-based chemotherapy regimen. IPS was variably defined, but all studies that reported IPS were included in this analysis. The mean incidence of post-HCT IPS was 16% (range, 4%-41%). Mortality from IPS, when it occurred, was high (median, 50%; range, 45%-100%). Fractionated TBI prescription doses encompassed a narrow range of 9 to 14 Gy. Many differing TBI methods were reported, and there was an absence of 3-dimensional dose analysis of lung blocking techniques. Thus, a univariate correlation between IPS and total TBI dose, dose fractionation, dose rate, or TBI technique could not be made. However, a model, built from these studies based on prescribed dose using a normalized dose parameter of equivalent dose in 2-Gy fractions (EQD2), adjusted for dose rate, suggested correlation with the development of IPS (P = .0004). The model-predicted odds ratio for IPS was 24.3 Gy-1 (95% confidence interval, 7.0-84.3). Use of TBI lung dose metrics (eg, midlung point dose) could not be successfully modeled, potentially because of dosimetric uncertainties in the actual delivered volumetric lung dose and imperfections in our modeling process. CONCLUSIONS This PENTEC report is a comprehensive review of IPS in pediatric patients receiving fractionated TBI regimens for allogenic HCT. IPS was not clearly associated with 1 single TBI factor. Modeling using dose-rate adjusted EQD2 showed a response with IPS for allogeneic HCT using a cyclophosphamide-based chemotherapy regimen. Therefore, this model suggests IPS mitigation strategies can focus on not just the dose and dose per fraction but also the dose rate used in TBI. More data are needed to confirm this model and to determine the influence of chemotherapy regimens and contribution from graft-versus-host disease. The presence of confounding variables (eg, systemic chemotherapies) that affect risk, the narrow range of fractionated TBI doses found in the literature, and limitations of other reported data (eg, lung point dose) may have prevented a more straightforward link between IPS and total dose from being observed.
Collapse
Affiliation(s)
| | | | - Sonia Skamene
- Division of Radiation Oncology, McGill University, Montreal, Quebec, Canada
| | - K Scott Baker
- Fred Hutchinson Cancer Research Center, Seattle Children's Hospital, Seattle, Washington
| | - Shiva K Das
- Department of Radiation Oncology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Louis S Constine
- Department of Radiation Oncology, James P. Wilmot Cancer Institute, University of Rochester, Rochester, New York
| | | | | |
Collapse
|
3
|
Sonneveld N, Rayment JH, Usemann J, Nielsen KG, Robinson PD. Multiple breath washout and oscillometry after allogenic HSCT: a scoping review. Eur Respir Rev 2023; 32:220251. [PMID: 37495248 PMCID: PMC10369167 DOI: 10.1183/16000617.0251-2022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 05/04/2023] [Indexed: 07/28/2023] Open
Abstract
Pulmonary chronic graft-versus-host disease (cGVHD) is a substantial cause of pulmonary morbidity and mortality post-haematopoietic stem cell transplantation (HSCT). Current spirometry-based monitoring strategies have significant limitations. Understanding the utility of novel peripheral airway function tests - multiple breath washout (MBW) and oscillometry - is critical in efforts to improve detection, facilitate earlier intervention and improve outcomes. In this scoping review, we identified 17 studies investigating MBW or oscillometry, or both, after allogenic HSCT. Despite small study numbers limiting the ability to draw firm conclusions, several themes were evident. Detectable peripheral airway abnormality in MBW occurred in a substantial proportion prior to HSCT. MBW indices post-HSCT were more frequently abnormal than spirometry when reporting group data and among those with extrapulmonary cGVHD and pulmonary cGVHD. Changes in MBW indices over time may be more indicative of pulmonary complications than absolute values at any given time point. Oscillometry indices were often normal at baseline, but more frequently abnormal in those who developed pulmonary cGVHD. Pooling currently available individual participant data across these studies may improve our ability to formally compare their respective sensitivity and specificity at specific time points and assess the trajectory of MBW and oscillometry indices over time.
Collapse
Affiliation(s)
- Nicole Sonneveld
- Department of Respiratory Medicine, Children's Hospital at Westmead, Sydney Children's Hospitals Network, Sydney, Australia
- Discipline of Paediatrics and Child Health, University of Sydney, Sydney, Australia
| | - Jonathan H Rayment
- Division of Respiratory Medicine, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
- BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Jakob Usemann
- University Children's Hospital Basel (UKBB), Basel, Switzerland
- Division of Respiratory Medicine and Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Kim G Nielsen
- Paediatric Pulmonary Service, Copenhagen University Hospital, Department of Paediatric and Adolescent Medicine, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Paul D Robinson
- Department of Respiratory Medicine, Children's Hospital at Westmead, Sydney Children's Hospitals Network, Sydney, Australia
- Discipline of Paediatrics and Child Health, University of Sydney, Sydney, Australia
- Airway Physiology and Imaging Group, The Woolcock Institute of Medical Research, Sydney, Australia
- Children's Health and Environment Program, Child Health Research Centre, University of Queensland, Brisbane, Australia
| |
Collapse
|
4
|
Traunero A, Peri F, Badina L, Amaddeo A, Zuliani E, Maschio M, Barbi E, Ghirardo S. Hematopoietic Stem Cells Transplant (HSCT)-Related Chronic Pulmonary Diseases: An Overview. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1535. [PMID: 37761496 PMCID: PMC10530143 DOI: 10.3390/children10091535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/03/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023]
Abstract
Recipients of HSCT have a high risk of infective and non-infective pulmonary diseases. Most patients with pulmonary involvement present multiple pathogenetic mechanisms simultaneously with complex interactions. Therefore, it can be difficult to distinguish the contributions of each one and to perform studies on this subject. In this opinion article, we discuss only chronic pulmonary manifestations, focusing on LONIPCs (late-onset non-infectious pulmonary complications). This term embraces drug-related toxicity, allergies, and chronic pulmonary graft versus host disease (GvHD) in all its recently identified clinical variants. Among LONIPCs, GvHD represents the most critical in terms of morbidity and mortality, despite the rapid development of new treatment options. A recently emerging perspective suggests that pulmonary lung rejection in transplant patients shares striking similarities with the pathogenesis of GvHD. In a pulmonary transplant, the donor organ is damaged by the host immune system, whereas in GvHD, the donor immune system damages the host organs. It constitutes the most significant breakthrough in recent years and is highly promising for both hematologists and thoracic transplant surgeons. The number of patients with LONIPCs is scarce, with heterogenous clinical characteristics often involving several pathogenetic mechanisms, making it challenging to conduct randomized controlled trials. Therefore, the body of evidence in this field is scarce and generally of low quality, leading to jeopardized choices in terms of immunosuppressive treatment. Moreover, it risks being outdated by common practice due to the quick evolution of knowledge about the diagnosis and treatment of LONIPCs. The literature is even more pitiful for children with pulmonary involvement related to HSCT.
Collapse
Affiliation(s)
- Arianna Traunero
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34126 Trieste, Italy
| | - Francesca Peri
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34126 Trieste, Italy
| | - Laura Badina
- Department of Pediatrics, Institute for Maternal and Child Health, IRCCS Burlo Garofolo, 34137 Trieste, Italy
| | - Alessandro Amaddeo
- Emergency Department, Institute for Maternal and Child Health, IRCCS Burlo Garofolo, 34137 Trieste, Italy
| | - Elettra Zuliani
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34126 Trieste, Italy
| | - Massimo Maschio
- Department of Pediatrics, Institute for Maternal and Child Health, IRCCS Burlo Garofolo, 34137 Trieste, Italy
| | - Egidio Barbi
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34126 Trieste, Italy
- Department of Pediatrics, Institute for Maternal and Child Health, IRCCS Burlo Garofolo, 34137 Trieste, Italy
| | - Sergio Ghirardo
- Department of Medical, Surgical and Health Sciences, University of Trieste, 34126 Trieste, Italy
| |
Collapse
|
5
|
Rayment JH, Sandoval RA, Roden JP, Schultz KR. Multiple breath washout testing to identify pulmonary chronic graft versus host disease in children after haematopoietic stem cell transplantation. Transplant Cell Ther 2022; 28:328.e1-328.e7. [DOI: 10.1016/j.jtct.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 10/19/2022]
|
6
|
Pulmonary Dysfunction after Treatment for Childhood Cancer. Comparing Multiple-Breath Washout with Spirometry. Ann Am Thorac Soc 2021; 18:281-289. [PMID: 32877212 DOI: 10.1513/annalsats.202003-211oc] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Rationale: Childhood cancer survivors are at risk of long-term pulmonary dysfunction, but we lack sensitive outcome measures to detect early pulmonary damage.Objectives: To assess the ability of nitrogen multiple-breath washout (N2MBW) for detecting pulmonary dysfunction compared with spirometry in long-term survivors of childhood cancer.Methods: We analyzed cross-sectional data from long-term (≥5-yr) survivors of childhood cancer, aged ≤16 years at cancer diagnosis, ≥16 years at study (assessment period 2015-2019). We categorized survivors by risk: high risk for those having had pulmotoxic chemotherapy, chest radiation, thoracic surgery, and/or hematopoietic stem cell transplantation, and standard risk for other cancer therapies. Primary outcomes were the global lung clearance index (LCI) and acinar ventilation inhomogeneity index (SACIN) from N2MBW, and forced expiratory volume in 1 second (FEV1) and functional vital capacity (FVC) from spirometry. We calculated z-scores for N2MBW and spirometry parameters and compared pulmonary dysfunction between risk groups. Pulmonary dysfunction was defined as z-score +1.64 for N2MBW and -1.64 for spirometry.Results: We studied 46 survivors, median age at diagnosis 10 years (interquartile range, 4-14), median age at study 30 years (interquartile range, 25-40). Thirty-seven percent were at high risk and 63% at standard risk for pulmonary dysfunction. LCI and SACIN were higher in the high-risk group compared with the standard-risk group (mean LCI z-scores 2.09, standard deviation [SD] 2.39 vs. 0.95, SD 2.81; mean SACIN z-scores 2.45, SD 3.29 vs. 0.65, SD 2.79). FEV1 and FVC were lower in the high-risk compared with the standard-risk group (mean FEV1 z-scores -0.94, SD 1.39 vs. -0.10, SD 1.07; mean FVC z-scores -1.14, SD 1.23 vs. 0.15, SD 1.61). Overall, LCI, SACIN, FEV1, and FVC were abnormal in 60%, 53%, 33%, and 33% of high-risk patients compared with 23%, 21%, 0%, and 4% of standard-risk patients.Conclusions: N2MBW identified more cases of pulmonary dysfunction in long-term survivors of childhood cancer than spirometry, even in patients who had cancer therapy not specifically known as being pulmotoxic. N2MBW could be a complementary screening tool for early pulmonary damage after treatment for childhood cancer.Clinical trial registered with www.clinicaltrials.gov (NCT02730767).
Collapse
|
7
|
Shanthikumar S, Gower WA, Abts M, Liptzin DR, Fiorino EK, Stone A, Srinivasan S, Vece TJ, Akil N, Cole T, Cooke KR, Goldfarb SB. Pulmonary surveillance in pediatric hematopoietic stem cell transplant: A multinational multidisciplinary survey. Cancer Rep (Hoboken) 2021; 5:e1501. [PMID: 34319008 PMCID: PMC9124519 DOI: 10.1002/cnr2.1501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 06/16/2021] [Accepted: 06/29/2021] [Indexed: 12/18/2022] Open
Abstract
Background Hematopoietic Stem Cell Transplant (HSCT) is an established treatment for malignant and non‐malignant conditions and pulmonary disease is a leading cause of late term morbidity and mortality. Accurate and early detection of pulmonary complications is a critical step in improving long term outcomes. Existing guidelines for surveillance of pulmonary complications post‐HSCT contain conflicting recommendations. Aim To determine the breadth of current practice in monitoring for pulmonary complications of pediatric HSCT. Methods An institutional review board approved, online, anonymous multiple‐choice survey was distributed to HSCT and pulmonary physicians from the United States of America and Australasia using the REDcap platform. The survey was developed by members of the American Thoracic Society Working Group on Complications of Childhood Cancer, and was designed to assess patient management and service design. Results A total of 40 (34.8%) responses were received. The majority (62.5%) were pulmonologists, and 82.5% were from the United States of America. In all, 67.5% reported having a protocol for monitoring pulmonary complications and 50.0% reported adhering “well” or “very well” to protocols. Pulmonary function tests (PFTs) most commonly involved spirometry and diffusion capacity for carbon monoxide. The frequency of PFTs varied depending on time post‐HSCT and presence of complications. In all, 55.0% reported a set threshold for a clinically significant change in PFT. Conclusions These results illustrate current variation in surveillance for pulmonary complications of pediatric HSCT. The results of this survey will inform development of future guidelines for monitoring of pulmonary complications after pediatric HSCT.
Collapse
Affiliation(s)
- Shivanthan Shanthikumar
- Respiratory and Sleep Medicine, Royal Children's Hospital, Parkville, Victoria, Australia.,Respiratory Diseases, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - William A Gower
- Division of Pediatric Pulmonology, Department of Pediatrics, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Matthew Abts
- Seattle Children's Hospital, Seattle, Washington, USA.,Pediatric Pulmonary and Sleep Medicine, University of Washington, Seattle, Washington, USA
| | - Deborah R Liptzin
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Elizabeth K Fiorino
- Division of Pulmonology, Allergy, and Immunology, Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA
| | - Anne Stone
- Division of Pulmonology, Department of Pediatrics, Oregon Health & Science University, Portland, Oregon, USA
| | - Saumini Srinivasan
- Division of Pulmonology, Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Timothy J Vece
- Division of Pediatric Pulmonology, Department of Pediatrics, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Nour Akil
- Division of Pulmonology, Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Theresa Cole
- Allergy and Immunology, Royal Children's Hospital, Parkville, Victoria, Australia
| | - Kenneth R Cooke
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Samuel B Goldfarb
- Division of Pulmonary and Sleep Medicine, Department of Pediatrics, School of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| |
Collapse
|
8
|
Gower WA, Vece TJ. Pediatric pulmonology 2019 year in review: rare and diffuse lung disease. Pediatr Pulmonol 2021; 56:1324-1331. [PMID: 33559960 DOI: 10.1002/ppul.25297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 12/31/2020] [Accepted: 01/20/2021] [Indexed: 11/07/2022]
Abstract
Pediatric Pulmonology publishes original research, review articles, and case reports on topics related to a wide range of children's respiratory disorders. Here we review manuscripts published in 2019 in this journal and others on (1) anatomic lung, airway, and vascular malformations, (2) children's interstitial lung disease, and (3) primary ciliary dyskinesia and non-cystic fibrosis bronchiectasis.
Collapse
Affiliation(s)
- William A Gower
- Division of Pediatric Pulmonology, Program for Rare and Interstitial Lung Disease, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Timothy J Vece
- Division of Pediatric Pulmonology, Program for Rare and Interstitial Lung Disease, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| |
Collapse
|
9
|
Rhoads E, Wall BL, Ren CL. Pediatric pulmonology year in review 2019: Physiology. Pediatr Pulmonol 2020; 55:2848-2852. [PMID: 32729952 DOI: 10.1002/ppul.24995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/02/2020] [Accepted: 07/05/2020] [Indexed: 11/07/2022]
Abstract
Pulmonary physiologic assessments are critical for the care and study of pediatric respiratory disease. In 2019, there were numerous contributions to this topic in Pediatric Pulmonology.
Collapse
Affiliation(s)
- Eli Rhoads
- Division of Pediatric Pulmonology, Allergy, and Sleep Medicine, Indiana University School of Medicine, Indianapolis, Indiana.,Riley Hospital for Children, Indianapolis, Indiana
| | - Brittany L Wall
- Division of Pediatric Pulmonology, Allergy, and Sleep Medicine, Indiana University School of Medicine, Indianapolis, Indiana.,Riley Hospital for Children, Indianapolis, Indiana
| | - Clement L Ren
- Division of Pediatric Pulmonology, Allergy, and Sleep Medicine, Indiana University School of Medicine, Indianapolis, Indiana.,Riley Hospital for Children, Indianapolis, Indiana
| |
Collapse
|
10
|
Walther S, Rettinger E, Maurer HM, Pommerening H, Jarisch A, Sörensen J, Schubert R, Berres M, Bader P, Zielen S, Jerkic SP. Long-term pulmonary function testing in pediatric bronchiolitis obliterans syndrome after hematopoietic stem cell transplantation. Pediatr Pulmonol 2020; 55:1725-1735. [PMID: 32369682 DOI: 10.1002/ppul.24801] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 04/16/2020] [Indexed: 12/19/2022]
Abstract
RATIONALE Bronchiolitis obliterans syndrome (BOS) is a severe, chronic inflammation of the airways leading to an obstruction of the bronchioles. So far, there are only a few studies looking at the long-term development of pulmonary impairment in children with BOS. OBJECTIVE The objective of this study was to investigate the incidence and long-term outcome of BOS in children who underwent allogeneic hematopoietic stem cell transplantation (HSCT). METHODS Medical charts of 526 children undergoing HSCT in Frankfurt/Main, Germany between 2000 and 2017 were analyzed retrospectively and as a result, 14 patients with BOS were identified. A total of 271 lung functions (spirometry and body plethysmography), 26 lung clearance indices (LCI), and 46 chest high-resolution computed tomography (HRCT) of these 14 patients with BOS were evaluated. RESULTS Fourteen patients suffered from BOS after HSCT (2.7%), whereby three distinctive patterns of lung function impairment were observed: three out of 14 patients showed a progressive lung function decline; two died and one received a lung transplant. In five out of 14 patients with BOS persisted with a severe obstructive and secondarily restrictive pattern in lung function (forced vital capacity [FVC] < 60%, forced expiratory volume in 1 second [FEV1] < 50%, and FEV1/FVC < 0.7) and increased LCI (11.67-20.9), six out of 14 patients recovered completely after moderate lung function impairment and signs of BOS on HRCT. Long-term FVC in absolute numbers was increased indicating that the children still have lung growth. CONCLUSION Our results showed that the incidence of BOS in children is low. BOS was associated with high mortality and may lead to persistent obstructive lung disease; although, lung growth continued to exist.
Collapse
Affiliation(s)
- Sophie Walther
- Division of Allergology Pulmonology and Cystic fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Eva Rettinger
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Hannah Miriam Maurer
- Division of Allergology Pulmonology and Cystic fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Helena Pommerening
- Division of Allergology Pulmonology and Cystic fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Andrea Jarisch
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Jan Sörensen
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Ralf Schubert
- Division of Allergology Pulmonology and Cystic fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Martin Berres
- Department of Diagnostic and Interventional Radiology, Goethe University, Frankfurt, Germany
| | - Peter Bader
- Division for Stem Cell Transplantation and Immunology, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Stefan Zielen
- Division of Allergology Pulmonology and Cystic fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| | - Silvija Pera Jerkic
- Division of Allergology Pulmonology and Cystic fibrosis, Department for Children and Adolescents, Goethe University, Frankfurt, Germany
| |
Collapse
|