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Beyond airflow obstruction: acknowledging the diversity of abnormal spirometry patterns.
Sateesh Sakhamuri1, Terence Seemungal2
1Medical Associates Hospital, St Joseph, Trinidad and Tobago.
ERJ Open Research
|July 5, 2023
Summary
Restrictive spirometry patterns and Preserved Ratio Impaired Spirometry (PRISm) may differ, potentially leading to missed diagnoses of abnormal lung function. Careful interpretation of all spirometry indices is crucial for accurate patient assessment.
Area of Science:
- Pulmonary Medicine
- Respiratory Physiology
Background:
- Spirometry is a cornerstone of respiratory diagnostics.
- Restrictive spirometry patterns are commonly identified.
- Preserved Ratio Impaired Spirometry (PRISm) represents another pattern of abnormal lung function.
Purpose of the Study:
- To investigate the potential differences between restrictive spirometry patterns and PRISm.
- To highlight the risk of underdiagnosis when these patterns are conflated.
Main Methods:
- Analysis of spirometry data.
- Comparison of diagnostic criteria for restrictive patterns and PRISm.
- Review of clinical implications.
Main Results:
- Restrictive spirometry patterns and PRISm may not be equivalent diagnostic entities.
- A significant number of individuals with abnormal spirometry could be missed if these distinctions are not recognized.
Conclusions:
- Accurate interpretation of spirometry requires careful consideration of all indices.
- Distinguishing between restrictive patterns and PRISm is essential for comprehensive diagnosis and management of respiratory conditions.
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