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Scintigraphic assessment of cardiac adrenergic innervation in patients with essential hypertension

Journal Article · · Journal of Cardiovascular Pharmacology; (United States)
; ; ; ; ;  [1]
  1. 2nd Department of Internal Medicine, Ehime University School of Medicine (Japan)
To assess the regional cardiac adrenergic innervation in patients with essential hypertension (EHT), simultaneous iodine-123 metaiodobenzylguanidine ((123I)MIBG) and thallium-201 (201Tl) myocardial imagings were performed in five patients with EHT, seven patients with hypertrophic cardiomyopathy (HCM), and seven normal subjects. Short axial images at rest were divided into five segments: anterior, septal, posterior, lateral, and apical segments. Percent regional uptake (%RU) of 201Tl except the septal segment in patients with EHT showed no significant difference. However, the %RU of (123I)MIBG at posterior, lateral, and apical segments was significantly lower than that at anterior and septal segments in EHT. This intraimage heterogeneity of (123I)MIBG was also observed in HCM. These results suggest that there is a difference in regional adrenergic innervation of the left ventricle with myocardial hypertrophy.
OSTI ID:
5028631
Journal Information:
Journal of Cardiovascular Pharmacology; (United States), Journal Name: Journal of Cardiovascular Pharmacology; (United States) Vol. 17 Suppl 2; ISSN 0160-2246; ISSN JCPCD
Country of Publication:
United States
Language:
English