Scintigraphic assessment of cardiac adrenergic innervation in patients with essential hypertension. 1991

Y Fujiwara, and M Hamada, and Y Shigematsu, and T Sumimoto, and K Hamamoto, and K Hiwada
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.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D007457 Iodine Radioisotopes Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes. Radioisotopes, Iodine
D007462 Iodobenzenes Any derivative of BENZENE that contains IODINE.
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011877 Radionuclide Imaging The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph. Gamma Camera Imaging,Radioisotope Scanning,Scanning, Radioisotope,Scintigraphy,Scintiphotography,Imaging, Gamma Camera,Imaging, Radionuclide
D002312 Cardiomyopathy, Hypertrophic A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY). Cardiomyopathy, Hypertrophic Obstructive,Cardiomyopathies, Hypertrophic,Cardiomyopathies, Hypertrophic Obstructive,Hypertrophic Cardiomyopathies,Hypertrophic Cardiomyopathy,Hypertrophic Obstructive Cardiomyopathies,Hypertrophic Obstructive Cardiomyopathy,Obstructive Cardiomyopathies, Hypertrophic,Obstructive Cardiomyopathy, Hypertrophic
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000320 Adrenergic Fibers Nerve fibers liberating catecholamines at a synapse after an impulse. Sympathetic Fibers,Adrenergic Fiber,Fiber, Adrenergic,Fiber, Sympathetic,Fibers, Adrenergic,Fibers, Sympathetic,Sympathetic Fiber

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