[Tactics and indications for surgical treatment of patients with combined extra- and intracranial lesions of the carotid arteries].

The authors present the results of surgical treatment of patients with concomitant extra-intracranial and bilateral lesions of the carotid arteries. The patients underwent 163 operations for establishment of extra-intracranial microanastomosis (EICMA) including reconstruction of the extracranial segments with EICMA establishment (75 cases). In 66 cases, EICMA was performed for contralateral stenosis of the internal carotid artery (ICA).

[Single-photon emission-computed tomography of the head using labelled amines in visualizing the cerebral microcirculation].

The authors presented clinical material on cerebral hemodynamics in patients with neurological pathology in suspected tumor vascular cerebral diseases and craniocerebral traumas. Investigation of cerebral microcirculation was performed using a multidetector single-photon emission tomograph "Testoscan" (USSR) after iv administration of 99mTc-hexamethylpropilene-amyloxine. This radiopharmaceutical is good for the evaluation of cerebral perfusion and gives a clinician rich information on cerebral microcirculation.

[Tactics and indications in the surgical treatment of patients with combined extra- and intracranial lesions of the carotid arteries].

The article deals with the results of surgical treatment of 159 patients with concomitant extra-intracranial and bilateral lesions of the carotid arteries; 163 operations were conducted for the formation of an extra-intracranial microanastomosis (EICMA) among which 75 operations comprised reconstruction of extracranial segments with creation of EICMA. In 66 cases EICMA was performed in contralateral stenosis of the internal carotid artery (in 22 with subsequent carotid endarterectomy), in 14 cases as the first stage before reconstruction of the iliofemoral segment, and in 8 cases in occlusion of the middle cerebral artery or in tortuous carotid arteries. Complex examination was conducted, including ultrasonic dopplerography, transcranial dopplerography, study of cerebral blood flow according to Xe-133 clearance, and angiography.

[Regional cerebral blood flow and the collateral reserve of the blood supply to the brain in occlusion of the internal carotid artery].

Regional cerebral blood flow (rCBF) and CO2-reactivity were investigated by the clearance of inhalation 133Xe on a 32-detector system in 33 patients with occlusion of the internal carotid artery. The patients were divided into 2 groups: with few symptoms and residual effects of ischemic insult of various degrees of expression. rCBF asymmetry was more noticeable in the 2nd group than in the 1st group.

[Surgical treatment of combined extra- and intracranial lesions of the carotid arteries].

The results of surgery for extra- and intracranial lesions of the carotid arteries in 108 patients are analysed. Application of non-invasive methods of examination parallelled with angiography provided a positive estimate of collateral circulation in unilateral occlusion of the internal carotid artery. Long-term postoperative studies showed best results in patients with transitory ischaemic attacks, minor stroke, dyscirculatory encephalopathy, and minor sequelae of ischaemic stroke.