Hemicrania continua for the headache. When the symptoms of hemicrania continua are present, it's considered "diagnostic" if they respond completely to indomethacin. The efficacy of indomethacin may not be long term for all patients, as can eventually become ineffective. The factor that allows hemicrania continua and its exacerbations to be differentiated from migraine and cluster headache is that hemicrania continua is completely responsive to indomethacin. Triptans and other abortive medications do not affect hemicrania continua. In addition to persistent daily headache of HC, which is usually mild to moderate (and frequently severe), HC can present other symptoms. These additional symptoms of HC
Relatively hyperbolic group a relatively hyperbolic group, as formulated by Bowditch goes as follows. A group "G" is said to be hyperbolic relative to a subgroup "H" if the coned off Cayley graph formula_2 has the properties: If only the first condition holds then the group "G" is said to be weakly relatively hyperbolic with respect to "H". The definition of the coned off Cayley graph can be generalized to the case of a collection of subgroups and yields the corresponding notion of relative hyperbolicity. A group "G" which contains no collection of subgroups with respect to which it is relatively hyperbolic is