title: [Relationship between cardiac 123I-metaiodobenzylguanidine scintigraphy and cardiovascular autonomic function test (standing test) in Parkinson's disease].
abstract: We investigated the correlation between results of 123I-metaiodobenzylguanidine (MIBG) myocardial scintigraphy and those of cardiovascular autonomic function tests in patients with Parkinson's disease (PD). 123I-MIBG myocardial scintigraphy and a 5-minute standing test were performed in 50 patients with PD and in 19 control subjects. The value of the basal plasma noradrenaline (NA) level was used as an index of basal sympathetic nerve activity, and %NA was used to assess the response of sympathetic nerve activity. In addition, the parameters of DeltaBP and DeltaHR were evaluated to assess the autonomic response of the cardiovascular system. A mild, but significant correlation was observed between the myocardium to mediastinum (H/M) ratio and the values of the plasma NA baseline (r = 0.35, p < 0.05 in early image, r = 0.29, p < 0.05 in delay image). No significant correlation was observed between the H/M ratio and the other parameters (%NA, DeltaBP, DeltaHR). These results suggest that 123I-MIBG myocardial scintigraphy may be associated with the basal sympathetic nerve activity, but not with autonomic nervous response of the cardiovascular system in patients with PD.
authors.affiliation: Department of Neurology, Higashi General Hospital of Nagoya.
authors.forename: Hideki
authors.initials: H
authors.lastname: Doi
authors.forename: Yuki
authors.initials: Y
authors.lastname: Niimi
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Hasegawa
authors.forename: Shigeru
authors.initials: S
authors.lastname: Miwa
authors.forename: Tomoko
authors.initials: T
authors.lastname: Yamana
authors.forename: Susumu
authors.initials: S
authors.lastname: Takagi
authors.forename: Akira
authors.initials: A
authors.lastname: Takahashi
authors.forename: Gen
authors.initials: G
authors.lastname: Sobue
mesh_terms: D019797:3-Iodobenzylguanidine; D000368:Aged; D015415:Biomarkers / Q000097:blood; D003943:Diagnostic Techniques, Neurological; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging* / Q000294:innervation*; D006801:Humans; D007457:Iodine Radioisotopes; D008297:Male; D008875:Middle Aged; D009638:Norepinephrine / Q000097:blood; D010300:Parkinson Disease / Q000175:diagnosis* / Q000503:physiopathology; D011187:Posture / Q000502:physiology*; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013564:Sympathetic Nervous System / Q000503:physiopathology*
chemical_list: D015415:Biomarkers; D007457:Iodine Radioisotopes; D019275:Radiopharmaceuticals; D019797:3-Iodobenzylguanidine; D009638:Norepinephrine