And because all three disorders may share a common basis, the researchers wrote, "It is possible that effective treatment of one symptom may lead to reductions in the presence or severity of the other symptoms".
All three disorders are characterized by elevated concentrations of ammonia in the blood after the ingestion of proteins and by impairment of the central nervous system (the cells of the brain are highly sensitive to ammonia).
However, the co-occurrence of symptoms of these three disorders is still only partially explored.
The second edition of the International Classification of Headache Disorders (ICHD-II, 2004) [8] distinguishes three disorders, namely, migraine-triggered seizures (migralepsy), hemicrania epileptica, and postictal headaches.
The principal objective of headache services within a health-care system must be to mitigate this burden; their focus must be these three disorders.
Furthermore, no single temporal pattern of onset was identified in individuals with all three disorders, suggesting no obvious cause-effect relationship among them.
This theoretical framework is then used to elucidate the cognitive emotional mechanisms underpinning three disorders of affect regulation: depression, anxiety, and schizophrenia.
Because of their high prevalence and their disabling nature, tension-type headache (TTH), migraine and medication-overuse headache (MOH) are three disorders collectively responsible for the majority of headache-attributed burden [3 7].
It became clear that these three disorders are distinct entities, even though they share several features: acute onset, the absence of structural brain disease and exertional factors as precipitating events.
The aims of this study were to identify subgroups (i.e., classes) in a Dutch sample of bereaved individuals, based on severity and/or co-occurrence of symptoms and to identify predictors for these subgroups, taking into account all three disorders.
The lack of a comprehensive military pain system only complicates the diagnosis and treatment of all three disorders.
