High norepinephrinergic orthostatic hypotension in early Parkinson's disease

Autor: Hiromasa Matsuno, Tadashi Umehara, Atsuo Nakahara, C. Toyoda, Hisayoshi Oka
Rok vydání: 2017
Předmět:
Zdroj: Parkinsonismrelated disorders. 55
ISSN: 1873-5126
Popis: Introduction Plasma norepinephrine concentration reflects lesions causing OH. We investigate whether patients with high norepinephrinergic orthostatic hypotension (OH) whose supine plasma norepinephrine concentration (NEsupine) is above the mean value in all patients with Parkinson's disease (PD) have central sympathetic denervation. Methods We analyzed data from 110 non-demented patients with early de novo PD who underwent cardiovascular examinations. We divided the patients into three groups according to the presence or absence of orthostatic hypotension and NEsupine: patients without OH, patients with OH+high NEsupine, and patients with OH+low NEsupine. Results The mean NEsupine in all patients was 251.6 pg/ml. Twelve patients (10.9%) had OH+high NEsupine (≥251.6 pg/ml), and 45 patients (40.9%) had OH+low NEsupine ( Conclusions Patient with PD and high norepinephrinergic OH are a subset of patients who have early cognitive decline and impaired vasopressin release. Vasopressin release after orthostatic stress was closely related to global cognition in PD.
Databáze: OpenAIRE