โClassicโ textbook orthostatic headache was actually more common in the myelography-negative group than in patients with confirmed CVF.
The most common CVF phenotype was instead โpartial orthostaticโ headache: posture clearly matters, but not in the clean binary way we traditionally describe.
This does NOT mean orthostatic headache is unimportant.
It does suggest we may need a more nuanced understanding of what a โgood story for a leakโ actually looks like in low-Bern patients.