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Related Concept Videos

Other Pulmonary Disorders01:17

Other Pulmonary Disorders

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Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
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Related Experiment Video

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Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
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Interstitial Lung Abnormality in Asian Population.

Gong Yong Jin1

  • 1Department of Radiology, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University and Medical School, Jeonju, Republic of Korea.

Tuberculosis and Respiratory Diseases
|December 19, 2023
PubMed
Summary

Interstitial lung abnormalities (ILAs) are common incidental findings on CT scans. This review focuses on ILA prevalence, prognosis, and management in Asian populations, comparing findings to Western cohorts.

Keywords:
Idiopathic Pulmonary FibrosisInterstitial Lung AbnormalitiesInterstitial Lung DiseasePrognosis

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Area of Science:

  • Pulmonology
  • Radiology
  • Epidemiology

Background:

  • Interstitial lung abnormalities (ILAs) are incidental findings on chest CT scans, encompassing conditions from subclinical fibrosis to usual interstitial pneumonia.
  • The Fleischner Society's position paper aimed to clarify ILA definitions and management, primarily based on Western data.
  • Recent Asian studies investigate ILA's long-term outcomes, risk factors, and quantification, addressing a need for region-specific insights.

Purpose of the Study:

  • To report the occurrence of ILAs in the Asian population.
  • To discuss the prognosis of ILAs in Asians.
  • To review future management strategies for ILAs in Asia, referencing the Fleischner Society guidelines.

Main Methods:

  • Review of recent Asian studies on ILA prevalence, risk factors, and outcomes.
  • Comparison of ILA incidence/prevalence between Western and Asian populations.
  • Evaluation of quantitative CT metrics for ILA detection and their diagnostic accuracy.

Main Results:

  • The prevalence of ILA in Asians (approx. 4%) is lower than in Westerners (7-10%).
  • ILAs are associated with respiratory symptoms and increased treatment complications in lung cancer patients, similar to Western populations.
  • Quantitative CT shows promise for ILA screening, with specific thresholds demonstrating high sensitivity and specificity in South Korean studies.

Conclusions:

  • While ILA prevalence differs between ethnicities, its clinical significance appears comparable.
  • Further validation of quantitative CT and standardized protocols are needed for widespread ILA screening.
  • Future management strategies should consider ethnicity-specific data and emerging quantitative imaging techniques.