HI Thank for asking to HCM You said it is black out while the doctor called it Catamenial seizure let me tell you something, the seizure means the epileptic attack which means tonic and colonic movement of limbs either upper or lower or all four together, frothing from mouth typical screaming of patient before attack (Aura phase ) passing of urine involuntarily, in severe attack tongue also get bite, is this kind of symptoms did you see ? if not then this is not catamanial seizures and if yes, then she has to be on drug for longer time of period may be till the menopause, I am still doubtful this may not be catamenial seizure, I would like to advise you to have second opinion, and important is watch the symptoms properly,, have good day wishing you a very good health of your wife.