There are some limitations to this study, including that almost all patients had disease at C5 or above, so whether these findings would still occur if patients were affected below this level remains unanswered.
However these are very interesting findings and raise many important questions; Could lung function be used as a marker of disability in CSM? What are the day to day implications for CSM patients - for example do CSM patients become more prone to chest infections? We will have to wait and see.
1) Bhagavatula et al. Subclinical respiratory dysfunction in chronic cervical cord compression: a pulmonary function test correlation. Neurosurgical FOCUS 40(6):E3 · June 2016
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