[Cerebral circulation in chronic hypertensive encephalopathy].

Cerebral blood supply was studied in 123 patients with stage III hypertensive encephalopathy (HE) in the absence of occlusion of main head arteries. Duplex scanning was used to measure blood flow rate in common carotid (CCA), vertebral (VA) and medial cerebral (MCA) arteries. Cortical cerebral blood flow (CBF) was measured by single-photon emission CT using 99mTc- ceretec.

[Possibility of an emission computer tomography for an estimation cerebral perfusion at patients with carotid stenoses before and after stenting].

The Purpose: To estimate possibilities for studies of cerebral perfusion with brain scintigraphy for revealing and an estimation of features of change brain perfusion at patients with a cardio-cerebral vascular pathology before and after carotid stenting (CAS).

Material And Methods: 11 patients with established (after carotid angiography) stenosis of internal carotid artery and coronary artery disease have been studied with SPECT with analogue HMPAO teoxim--Tc99M after intravenous introduction 700 MBk up to and in 5 days and in the remote period after stenting. For analysis of results the program "Neurogam" have been used.

[Cerebral hemodynamics and endothelium function in patients with cerebrovascular pathology treated by teveten].

Teveten (eprosartan mesilate) was used as a monotherapy or in combination with hypotiazide (12,5 mg/day) in dosage 600 mg once a day for treatment of 20 patients with cerebrovascular pathology (chronic cerebrovascular insufficiency, consequences of brain ischemica in the presence of arterial hypertension stage I-II, or higher borderline levels of normal blood pressure (BP). Treatment duration was 12 weeks, 24-h monitoring of BP was made some indices of cerebral blood flow, hemodynamics and peripheral vessels reaction were registered. Modulating antihypertensive effect of Teveten was found, statistically significant reduction of systolic BP did not result in worsening of cerebral hemodynamics.

[Cerebral perfusion in patients with arterial hypertension and chronic forms of brain vascular pathology].

Aim: To examine cerebral perfusion in patients with dyscirculatory encephalopathy and residual disorders of cerebral circulation in arterial hypertension.

Material And Methods: Duplex scanning of extra- and intracranial arteries, computed tomography of the head were performed in 26 hypertensive patients with chronic vascular pathology of the brain. Cerebral perfusion was studied by the evidence obtained at single-photon emission computed tomography.

[Regional cerebral blood flow and the infarct volume in obstruction of the internal carotid artery in relationship to the source of the collateral circulation].

The cerebral blood flow was examined by means of Obrist's 133Xe-inhalational method, cerebral angiography, and computer-aided tomography of the head in 100 patients with occlusion of the internal carotid artery. The findings obtained have revealed a correlation between the level of the compensatory collateral blood supply of the bed of the middle cerebral artery (MCA) and the source of collateral blood circulation. The authors have demonstrated the vulnerability of the MCA bed secondary to a low level of blood supply persisting despite the functioning of all pathways of the collateral circulation.