RT Book, Section
A1 Spierings, Egilius L.H.
A2 Warfield, Carol A.
A2 Bajwa, Zahid H.
SR Print(0)
ID 3411866
T1 Chapter 22. Chronic Daily Headache
T2 Principles & Practice of Pain Medicine, 2e
YR 2004
FD 2004
PB The McGraw-Hill Companies
PP New York, NY
SN 9780071443494
LK accessanesthesiology.mhmedical.com/content.aspx?aid=3411866
RD 2024/04/25
AB Chronic  daily  headache  relates  to  the  daily  or  almost-daily  occurrence  of  headache.  However,  not  all  daily  or  almost-daily  headaches  fall  under  this  denominator,  as  is  the  case  with  the  daily  or  almost-daily  headaches  of  (chronic)  cluster  headache  and  paroxysmal  hemicrania,  as  well  as  those  of  hypnic  headache  or  nocturnal  migraine.  These  conditions  can  be  referred  to  as  paroxysmal  daily  headaches  in  which  the  headaches  occur  in  well-defined  attack  patterns.  In  cluster  headache,  the  attack  pattern  is  that  of  headaches  occurring  once  or  twice  a  day  and  lasting  1  to  2  hours,  whereas  in  paroxysmal  hemicrania,  it  is  that  of  headaches  occurring  5  to  15  times  per  day  and  lasting  10  to  30  minutes.  In  hypnic  headache  or  nocturnal  migraine,  the  headaches  occur  once  a  day,  waking  the  patient  from  sleep  at  night,  usually  between  4  and  6  am,  and  lasting  for  a  variable  amount  of  time,  also  depending  on  the  efficacy  of  treatment.