CT Imaging Assessment of Response to Treatment in Allergic Bronchopulmonary Aspergillosis in Adults With Bronchial Asthma
Copyright © 2024 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved..
BACKGROUND: One of the major challenges in managing allergic bronchopulmonary aspergillosis remains consistent and reproducible assessment of response to treatment.
RESEARCH QUESTION: What are the most relevant changes in CT scan parameters over time for assessing response to treatment?.
STUDY DESIGN AND METHODS: In this ancillary study of a randomized clinical trial (NEBULAMB), patients with asthma with available CT scan and without exacerbation during a 4-month allergic bronchopulmonary aspergillosis exacerbation treatment period (corticosteroids and itraconazole) were included. Changed CT scan parameters were assessed by systematic analyses of CT scan findings at initiation and end of treatment. CT scans were assessed by two radiologists blinded to the clinical data. Radiologic parameters were determined by selecting those showing significant changes over time. Improvement of at least one, without worsening of the others, defined the radiologic response. Agreement between radiologic changes and clinical and immunologic responses was likewise investigated.
RESULTS: Among the 139 originally randomized patients, 132 were included. We identified five CT scan parameters showing significant changes at end of treatment: mucoid impaction extent, mucoid impaction density, centrilobular micronodules, consolidation/ground-glass opacities, and bronchial wall thickening (P < .05). These changes were only weakly associated with one another, except for mucoid impaction extent and density. No agreement was observed between clinical, immunologic, and radiologic responses, assessed as an overall response, or considering each of the parameters (Cohen κ, -0.01 to 0.24).
INTERPRETATION: Changes in extent and density of mucoid impaction, centrilobular micronodules, consolidation/ground-glass opacities, and thickening of the bronchial walls were found to be the most relevant CT scan parameters to assess radiologic response to treatment. A clinical, immunologic, and radiologic multidimensional approach should be adopted to assess outcomes, probably with a composite definition of response to treatment.
TRIAL REGISTRATION: ClinicalTrials.gov; No.: NCT02273661; URL: www.
CLINICALTRIALS: gov).
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - year:2024 |
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| Enthalten in: |
Chest - (2024) vom: 20. Feb. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Godet, Cendrine [VerfasserIn] |
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| Links: |
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| Themen: |
ABPA |
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| Anmerkungen: |
Date Revised 14.03.2024 published: Print-Electronic ClinicalTrials.gov: NCT02273661 Citation Status Publisher |
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| doi: |
10.1016/j.chest.2024.02.026 |
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| 245 | 1 | 0 | |a CT Imaging Assessment of Response to Treatment in Allergic Bronchopulmonary Aspergillosis in Adults With Bronchial Asthma |
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| 500 | |a ClinicalTrials.gov: NCT02273661 | ||
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| 520 | |a Copyright © 2024 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved. | ||
| 520 | |a BACKGROUND: One of the major challenges in managing allergic bronchopulmonary aspergillosis remains consistent and reproducible assessment of response to treatment | ||
| 520 | |a RESEARCH QUESTION: What are the most relevant changes in CT scan parameters over time for assessing response to treatment? | ||
| 520 | |a STUDY DESIGN AND METHODS: In this ancillary study of a randomized clinical trial (NEBULAMB), patients with asthma with available CT scan and without exacerbation during a 4-month allergic bronchopulmonary aspergillosis exacerbation treatment period (corticosteroids and itraconazole) were included. Changed CT scan parameters were assessed by systematic analyses of CT scan findings at initiation and end of treatment. CT scans were assessed by two radiologists blinded to the clinical data. Radiologic parameters were determined by selecting those showing significant changes over time. Improvement of at least one, without worsening of the others, defined the radiologic response. Agreement between radiologic changes and clinical and immunologic responses was likewise investigated | ||
| 520 | |a RESULTS: Among the 139 originally randomized patients, 132 were included. We identified five CT scan parameters showing significant changes at end of treatment: mucoid impaction extent, mucoid impaction density, centrilobular micronodules, consolidation/ground-glass opacities, and bronchial wall thickening (P < .05). These changes were only weakly associated with one another, except for mucoid impaction extent and density. No agreement was observed between clinical, immunologic, and radiologic responses, assessed as an overall response, or considering each of the parameters (Cohen κ, -0.01 to 0.24) | ||
| 520 | |a INTERPRETATION: Changes in extent and density of mucoid impaction, centrilobular micronodules, consolidation/ground-glass opacities, and thickening of the bronchial walls were found to be the most relevant CT scan parameters to assess radiologic response to treatment. A clinical, immunologic, and radiologic multidimensional approach should be adopted to assess outcomes, probably with a composite definition of response to treatment | ||
| 520 | |a TRIAL REGISTRATION: ClinicalTrials.gov; No.: NCT02273661; URL: www | ||
| 520 | |a CLINICALTRIALS: gov) | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a ABPA | |
| 650 | 4 | |a CT scan | |
| 650 | 4 | |a allergic bronchopulmonary aspergillosis | |
| 650 | 4 | |a radiologic response | |
| 650 | 4 | |a treatment outcomes | |
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