Background: One of the most disabling features of patients with Riley-day syndrome are
recurrent attacks of severe nausea/retching/vomiting accompanied by hypertension,
tachycardia, and skin flushing, usually triggered by emotional or other stresses. Study: We
monitored blood pressure and heart rate and measured plasma catecholamines during
typical dysautonomic crises triggered by emotionally charged situations. For comparison,
measurements were repeated at follow-up after the symptoms had resolved and the patients …