Observational studyLung2018
Imaging Features of Chronic Bronchitis with Preserved Ratio and Impaired Spirometry (PRISm).
Observational study in Lung, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
20 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Chest CT in the evaluation of chronic obstructive pulmonary disease: recommendations of Asian Society of Thoracic Radiology.The British journal of radiology · 2026Guideline
- Association of preserved ratio impaired spirometry with mortality and cardiovascular diseases: a systematic review and meta-analysis.Systematic reviews · 2024Pooled it
- Phenotyping preserved ratio impaired spirometry (PRISm) using quantitative high-resolution computed tomography imaging features.Quantitative imaging in medicine and surgery · 2026Article
- Article
- Traditional Chinese Exercise Improves Lung Function and Exercise Capacity in Patients with Preserved Ratio Impaired Spirometry.Chinese journal of integrative medicine · 2025Article
- Impulse oscillometry for the detection of small airway dysfunction in patients with chronic respiratory symptoms, preserved ratio impaired spirometry and COPD.BMC pulmonary medicine · 2025Article
- Preserved ratio impaired spirometry: clinical, imaging and artificial intelligence perspective.Journal of thoracic disease · 2025Review
- Risk of All-Cause Mortality in US Adults With Preserved Ratio Impaired Spirometry: An Observational Study.International journal of chronic obstructive pulmonary disease · 2025Observational
- A clinical-radiomics nomogram based on automated segmentation of chest CT to discriminate PRISm and COPD patients.European journal of radiology open · 2024Article
- CT-based whole lung radiomics nomogram for identification of PRISm from non-COPD subjects.Respiratory research · 2024Article
- The value of lung function assessment and Testin expression detection in clinicopathological features and prognosis of NSCLC patients.Journal of cardiothoracic surgery · 2024Article
- Analysis of Endocrine and Inflammatory Markers in Preserved Ratio Impaired Spirometry.Medical sciences (Basel, Switzerland) · 2024Article
- Associations Between Physical Activity and Preserved Ratio Impaired Spirometry: A Cross-Sectional NHANES Study.International journal of chronic obstructive pulmonary disease · 2024Article
- Preserved Ratio Impaired Spirometry in US Primary Care Patients Diagnosed with Chronic Obstructive Pulmonary Disease.Pragmatic and observational research · 2024Article
- Preserved Ratio Impaired Spirometry (PRISm): A Global Epidemiological Overview, Radiographic Characteristics, Comorbid Associations, and Differentiation from Chronic Obstructive Pulmonary Disease.International journal of chronic obstructive pulmonary disease · 2024Review
- Understanding COPD Etiology, Pathophysiology, and Definition.Respiratory care · 2023Article
- Small Airway Dysfunction in Chronic Bronchitis with Preserved Pulmonary Function.Canadian respiratory journal · 2022Article
- Computer-aided quantitative MSCT measurements may be useful for congenital lung malformations surgical approach selection.Pediatric surgery international · 2021Article
- Physical performance in relation to preserved ratio impaired spirometry: a cross-sectional study of community-dwelling older Japanese adults.Scientific reports · 2021Article
- Different Smoking Statuses on Survival and Emphysema in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease.International journal of chronic obstructive pulmonary diseaseArticle
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purpose of the study was to investigate the quantitative chest tomographic features of chronic bronchitis with preserved ratio and impaired spirometry (PRISm), including airway wall area, emphysema index, and lung capacity.
methodsAn observational, cross-sectional study of 343 patients at the Ninth Hospital of Xi'an Affiliated Hospital of Xi'an Jiaotong University between October 2014 and September 2017. The patients were divided into three groups: 77 cases of chronic bronchitis with normal lung function (forced expiratory volume in one second/forced vital capacity) (FEV1/FVC > 70%, FEV1%pred > 80%), 80 cases of chronic bronchitis with PRISm (FEV1/FVC > 70%, FEV1%pred < 80%), and 186 cases of the early chronic obstructive pulmonary disease (COPD) (FEV1/FVC < 70%, FEV1%pred > 50%, that is, Global Initiative for Chronic Obstructive Lung Disease (GOLD) grade 1 + 2). We compared and analyzed the differences in imaging between the chronic bronchitis with PRISm and the other two groups.
resultsCompared with the early COPD group, the PRISm group revealed significant differences in airway wall area, emphysema index, and lung capacity (P < 0.05). Compared with the chronic bronchitis with normal lung function group, the PRISm group showed increased WA%
conclusionIn terms of airway wall area and emphysema index, patients with chronic bronchitis with PRISm were essentially no different than those with chronic bronchitis without abnormal spirometry, whereas for symptoms, they are more like GOLD 1 and 2 patients. Our findings show that it is not yet clear whether it constitutes an intermediate stage of chronic bronchitis with normal lung function that progression to early COPD.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.