(J Vasc Surg 2011;53:36-43.)”
“To guide understanding of the neuropsychology of prospective memory and aging, we highlight several components of prospective memory, including
planning an intended action, retrieving the action at the appropriate moment, and executing the action. We posit that frontal systems are particularly important for prospective memory tasks that require planning, that require strategic GSK461364 clinical trial monitoring to detect the appropriate moment for executing the prospective memory intention, or for which execution of the retrieved intention must be delayed briefly. Drawing from a variety of approaches, including neuroimaging (with young adults) and studies examining individual differences relating to frontal functioning, we assemble preliminary evidence that supports this hypothesis. Further, because aging especially disrupts frontal functioning, the above noted prospective memory tasks would thus be expected to display the greatest age-related
decline. The available literature confirms this expectation. A second key hypothesis is that some prospective memory tasks-those requiring minimal planning and supporting spontaneous retrieval-do not rely extensively on frontal processes but instead rely on medial-temporal structures for reflexive retrieval. These prospective memory tasks tend to show minimal or no age-related decline. The literature, though sparse GSK126 in vivo with regard to the neuropsychological underpinnings of this kind of prospective memory task, is consistent with the present hypothesis. (C) 2010 Elsevier Ltd. All rights reserved.”
“Background: Medical imaging evaluations provide valuable information and are often imperative in the care of our patients. Radiation exposure in patients who undergo medical imaging procedures is not routinely monitored and the associated risks are often underestimated.
Methods: Radiation exposure
associated with computed tomography (CT) angiography and coronary intervention is reviewed.
Results: Vascular surgeons are often involved in the decision-making MTMR9 process in roughly 30% of CT scans performed that are believed to be unnecessary. Society for Vascular Surgery (SVS) practice guidelines for patients with abdominal aortic aneurysms recommended eliminating a 6-month contrast surveillance CT if no endoleak was observed at 1 month after endovascular aneurysm repair (EVAR). Ultrasound and aortic duplex can help eliminate some of the CT scans.
Conclusion: Vascular surgeons must remain vigilant in monitoring radiation exposure for their patients who have potential for coronary and vascular imaging with radiation. Judicious use of alternative imaging modalities when possible and maintaining the dose as low as reasonably achievable (ALARA) is the responsibility of vascular surgeons. (J Vasc Surg 2011;53:39S-43S.)”
“This paper aimed to review the limited, but growing literature on prospective memory (PM) following closed head injury (CHI).