MIGRAINE PATIENTS UTILIZING TRIPTANS HAVE HIGHER CO2 LEVELS IN SLEEP. IS THIS A DANGEROUS FINDING OR A THERAPEUTIC EFFECT?

An abstract in Sleep abstract supplement "THE EFFECTS OF TRIPTANS ON RESPIRATORY DYNAMICS AND SLEEP ARCHITECTURE IN PATIENTS WHO SUFFER FROM MIGRAINE HEADACHES" found no changes in Polysomnography but did find there was a significant finding of increased end-tidal CO2. These higher levels of CO2 may fit with the vascular theory of migraines.On the other hand the high end-tidal CO2 values may be