Cerebral hypoperfusion in orthostatic hypotension with globally denervated myocardium.

A 57-yr-old woman had frequent syncope when rising from a seated position. Her blood pressure fell from 140/80 mmHg to 60-70/40 mmHg while changing positions. Iodine-123-metaiodobenzylguanidine ([123I]MIBG) did not accumulate in the heart, whereas 201Tl-Cl (201Tl) did.

Maladaptation of vascular response in frontal area of patients with orthostatic hypotension.

Unlabelled: To clarify the relationship between abnormalities in cerebral blood flow (CBF) and in blood pressure regulation, we performed 99mTc-HMPAO brain SPECT in association with measurement of plasma norepinephrine and blood pressure in both the upright and supine positions.

Methods: We studied six patients with orthostatic hypotension and six normal patients. No patient had any significant stenosis of the carotid arteries on echocardiography-Doppler ultrasound and no abnormalities on brain MRI or CT.

[Low serum TSH levels in patients with emergent conditions due to ischemic heart disease or congestive heart failure].

We investigated the pathophysiological and clinical significance of thyroid stimulating hormone (TSH) levels in patients within 4 days after onset of ischemic heart disease (IHD) or aggravation of congestive heart failure (CHF) due to myocardial infarction. We classified patients into 3 groups: 1) angina pectoris (AP) group [n = 66, 62 years (Mean)], 2) acute myocardial infarction (AMI) group (n = 58, 65 years) and 3) CHF group (n = 16, 68 years). Soon after admission, blood samples were obtained to measure TSH by the IRMA method.