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  • Title: Urinary catecholamines and mitral valve prolapse in panic-anxiety patients.
    Author: Nesse RM, Cameron OG, Buda AJ, McCann DS, Curtis GC, Huber-Smith MJ.
    Journal: Psychiatry Res; 1985 Jan; 14(1):67-75. PubMed ID: 3857649.
    Abstract:
    Free norepinephrine and epinephrine were measured in two consecutive 12-hour urine collections gathered during normal activity and sleep from 23 panic-anxiety patients and 9 normal subjects. Mitral value prolapse (MVP) was found in 7 of 20 patients who had echocardiograms. Mean nighttime norepinephrine and epinephrine excretion in panic-anxiety patients without MVP was significantly higher than that of control subjects, and was significantly higher than that of anxiety patients with MVP. In the daytime, all groups had higher catecholamine (CA) levels, but the differences between the groups were less pronounced. Medication significantly relieved symptoms and was associated with decreased CA levels. Elevated basal CA levels may characterize the subgroup of panic-anxiety patients who do not have MVP.
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