Yan et al. [1] need to be congratulated on forming an international aortic arch study group to improve patient outcomes after aortic arch surgery. Clinical consensus to classify the different temperatures utilized for hypothermia is obviously important; however, it does not take into account metabolic variation between patients [2] and may potentially explain variation in reported outcomes. Wit...

Open repair of aneurysms and dissections involving the aortic arch has traditionally been associated with high rates of morbidity and mortality, primarily because of the complications related to the need to interrupt normal blood flow to the cerebral circulation. Over the past several years, our approach to these operations has gradually changed largely through the introduction of various techn...

BACKGROUND The aim of this study was to show the application of cerebral blood flow SPECT (rCBF SPECT) study in dementia with Lewy bodies (DLB). MATERIAL AND METHODS (99m)Tc-ECD regional cerebral blood flow SPECT scanning was performed using a triple head, high resolution gamma camera on a group of six patients who ful- -filled criteria for clinical diagnosis of DLB. All patients were examine...

Delirium can be caused by haemodynamics abnormalities during anaesthesia. The main role in delirium appearance is given to decreasing of cerebral perfusion pressure. Especially it can happen in patients with underlying intracranial hypertension. Anaesthetics effects on intracranial pressure are different therefore cerebral hypoperfusion can happens in these patients even without systemic hypote...

Objective: Collateral circulation is essential for cerebral perfusion and the maintenance of metabolism function. The clinical factors affecting collateral in brain still unknown. In presence slowly developing stenosis, decrease blood flow can be compensated by adequate circulation, signs hemodynamic deterioration may not observed. Case: This case with a 6-year retrospective record only right I...

We surgically replaced the aortic root and the complex arch in a patient with aortitis syndrome with total occlusion of the cervical branches. Cerebral perfusion was being maintained through the reversed flow of the vertebral artery from the bilateral mammary arteries. Though cerebral perfusion was continued through the prosthetic grafts attached to the subclavian arteries during the procedure,...

BACKGROUND AND PURPOSE Our purpose was to determine (1) the correlation between quantitative CT and MR measurements of infarct core, penumbra, and mismatch; and (2) whether the difference between these measurements would alter patient selection for stroke clinical trials. METHODS We studied 45 patients with acute middle cerebral artery stroke imaged a mean of 3.8 hours after onset (range, 0.4...