Spurious Fingertip Oxygen Desaturation During the 6‐Minute Walk Test in a Patient With NSIP and Raynaud Phenomenon: The Value of Forehead Pulse Oximetry and Transcutaneous Oxygen Tension
Yusuke Nakamura, Masayoshi Takamori, Honoka Sunaga, Kosuke Natsume, Yuri Nomura, Yuto Goto, Nobuhiko Tsukada, Azusa Tsukada, Nobuhiko Uchida, Nana Yazawa, Hiromi Hoshi, Yasuo Shimizu, Seiji Niho · 2026
Read Spurious Fingertip Oxygen Desaturation During the 6‐Minute Walk Test in a Patient With NSIP and Raynaud Phenomenon: The Value of Forehead Pulse Oximetry and Transcutaneous Oxygen Tension by Yusuke Nakamura, Masayoshi Takamori, Honoka Sunaga, Kosuke Natsume, Yuri Nomura, Yuto Goto, Nobuhiko Tsukada, Azusa Tsukada, Nobuhiko Uchida, Nana Yazawa, Hiromi Hoshi, Yasuo Shimizu, Seiji Niho (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13504363.txt.
Description
A finger oxygen clip can lie during a walking test when a patient fingers have poor circulation from a spasm condition, making exercise oxygen drops look worse than they are. Yusuke Nakamura and co-authors report such a case in this 2026 paper. The patient was a thirty-nine-year-old woman with a scarring lung disease and the finger spasm condition.
During her six-minute walk test, fingertip readings plunged while she felt relatively well. Forehead sensors and skin-surface oxygen measures told a truer story. Misreading the test could lead to needless oxygen prescriptions or wrongly labeling the lung disease as more advanced. The case teaches lung teams a simple cross-check when walk test numbers and patient symptoms disagree.
Catalog record
| CREATOR | Yusuke Nakamura, Masayoshi Takamori, Honoka Sunaga, Kosuke Natsume, Yuri Nomura, Yuto Goto, Nobuhiko Tsukada, Azusa Tsukada, Nobuhiko Uchida, Nana Yazawa, Hiromi Hoshi, Yasuo Shimizu, Seiji Niho |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 14 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |