Loading...
  • METHODS
  • Methods --Continuous middle cerebral artery blood flow velocity (BFV) (transcranial Doppler ultrasound) and mean arterial pressure (MAP, Finapres) were measured in response to (1) acute hypotension during standing, (2) steady-state sitting and standing, and (3) hypercarbia during CO 2 rebreathing in 10 healthy young subjects (age 24±1 years), 10 healthy elderly subjects (age 72±3 years), and 10 previously treated hypertensive elderly (age 72±2 years) subjects. (ahajournals.org)
  • Onset
  • The purpose of the present, randomized, controlled multicenter phase III trial is to investigate the safety and efficacy of continuous 1-hour insonation of occluded middle cerebral artery with 2 MHz TCCS in stroke patients treated with intravenous tissue plasminogen activator (t-PA) within 3 hours after symptom onset. (clinicaltrials.gov)
  • During the first hours after the onset of cerebral ischemia, brain CT scans can often appear normal. (ahajournals.org)
  • rats
  • Conclusions -This study suggests that new neurons can be generated in the cerebral cortex of adult rats after transient focal cerebral ischemia. (ahajournals.org)
  • The right ophthalmic artery was occluded for 2 hours prior to reperfusion in nine wistar rats, while the left served as an internal control. (arvojournals.org)
  • Humans
  • Dawson EA, Secher NH, Dalsgaard MK, Ogoh S, Yoshiga CC, Gonzalez-Alonso J, Steensberg A, Raven PB (2004) Standing up to the challenge of standing: a siphon does not support cerebral blood flow in humans. (springer.com)
  • mortality
  • Although this operation significantly reduces mortality and improves functional outcomes, the conventional technique involves a reverse question mark incision starting anterior to the tragus that can injure the scalp's major blood supply, the superficial temporal artery (STA), which increases the risk of postoperative complications. (bioportfolio.com)
  • Clinical
  • Using high-resolution MRI, we sought to explore the plaque distribution of MCA atherosclerosis and its clinical relevance in relation to the orifices of penetrating arteries. (ahajournals.org)