Letter: Role of spirometry in fixed upper airway obstruction
To the Editor: We read with interest the article by Johnson et al[1][1] on fixed upper airway obstruction in the April issue and would like to highlight the following points. There is a typo in Table 2 of the article: the FEV1/FVC ratio is misstated as FVC/FEV1. The Tiffeneau-Pinelli index, or FEV1
Authors
- Arunabh Talwar (ORCID: https://orcid.org/0000-0003-2290-7562)
- Abhinav Talwar (ORCID: https://orcid.org/0000-0001-8385-6119)
- S Z Khan
- Jaydeep Patel
Institutions
- Northwestern University (US)
- Northwell Health (US)
Publication Details
- Journal
- Cleveland Clinic Journal of Medicine
- Published
- 2026-07-01
- DOI
- https://doi.org/10.3949/ccjm.93c.07001
- Primary Topic
- Respiratory and Cough-Related Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00