PURPOSE To examine the possibility that hyperventilation, commonly used to prevent or treat increased intracranial pressure in patients with acute brain lesions, may induce significant cerebral ischemia. METHODS Local cerebral blood flow and vascular reactivity were measured before and after hyperventilation using xenon-enhanced CT in 12 patients with acute brain lesions. RESULTS Five patie...

INTRODUCTION Acute spinal cord ischemia syndrome is a rare condition comprising a small fraction of neurovascular accidents, the majority of which occur within the cerebral circulation. The circulation of the spinal cord has several unique features that determine the clinical presentation. CASE PRESENTATION In this case of a 67-year-old Caucasian man who came to our emergency department with ...

Colonic complications of severe acute pancreatitis occur rarely. Although there have been several theories on how pancreatic pseudocysts rupture into the colon, the exact pathogenesis remains unknown. We report an unusual case of pseudocysts complicating severe acute pancreatitis presenting with colonic perforation in a 71-year-old man with a history of chronic mesenteric ischemia. Pressure eff...

Acute mesenteric ischemia is a serious acute abdominal condition requiring early diagnosis and intervention to improve the outcome. Although transmural acute bowel infarction represents about 1% of all cases of acute abdomen, it has a higher annual mortality rate than colon cancer. It tends to affect the colon in segmental fashion, mostly the splenic flexure and rectosigmoid portions of the col...

In the current study, effects of acute short term administration of fructose on cardiac arrhythmias and myocardial infarction size following ischemia/reperfusion were investigated in isolated rat heart. The hearts were subjected to 30 min zero flow global ischemia followed by 120 min reperfusion. In the control group, the hearts were perfused by normal drug free Krebs-Henseleit (K/H) solution t...

objective(s):acute kidney injury (aki), a syndrome characterized by decreased glomerular filtration, occurs in every 1 of 5 hospitalized patients.  renal ischemia-reperfusion, one of the main causes of aki, is of particular importance in the setting of kidney transplantation. materials and methods: sixty male rats were divided into four groups including control, nephrectomy, sham surgery and re...

Szeto HH, Liu S, Soong Y, Birk AV. Improving mitochondrial bioenergetics under ischemic conditions increases warm ischemia tolerance in the kidney. Am J Physiol Renal Physiol 308: F11–F21, 2015. First published October 22, 2014; doi:10.1152/ajprenal.00366.2014.—Ischemia time during partial nephrectomy is strongly associated with acute and chronic renal injury. ATP depletion during warm ischemia...

Aim: This study was conducted to investigate the diagnostic importance of Urotensin II (UT-II) levels, which cause vasodilation as a compensation mechanism in early phase Acute Mesenteric Ischemia (AMI). For this purpose, human plasma urotensin studied for first time literature diagnosis mesenteric ischemia.
 Material and Method: The consisted 60 patients. patients were divided into three ...

Cardiac hydatid cysts are rarely seen. The presentation of an acute lower limb ischemia secondary to embolization from an interventricular hydatic cyst is also rare. We describe a case of a 30-year-old-man who presented with acute lower limb ischemia revealing hydatid cyst of the interventricular septum and septal defect, and who was operated on successfully.

The accurate characterization of the spatiotemporal pattern of electrical activation and repolarization during ischemia is relevant for diagnosis and sudden cardiac death prediction. Although several animal studies have comprehensively described changes in acute ischemic models in the dog, cat, and pig, data from whole-heart mapping of acute ischemia in the in vivo human heart are scant and are...