Articles: function.
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Neosaxitoxin (NeoSTX) is a site-1 sodium channel blocker undergoing clinical trials as a prolonged-duration local anesthetic. Rat sciatic block and intravenous infusion models were used to assess efficacy and local and systemic toxicities for NeoSTX in saline (NeoSTX-Saline), bupivacaine (Bup), and their combination (NeoSTX-Bup). Exploratory studies evaluated the effects of addition of epinephrine to NeoSTX-Bup (NeoSTX-Bup-Epi). ⋯ NeoSTX-Bup and NeoSTX-Bup-Epi hold promise for prolonged-duration local anesthesia.
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Randomized Controlled Trial
Comparison of lung expansion techniques on thoracoabdominal mechanics and incidence of pulmonary complications after upper abdominal surgery: a randomized and controlled trial.
Lung expansion techniques (LETs) are widely used to prevent postoperative pulmonary complications (PPCs). However, the effects of each of these techniques on thoracoabdominal mechanics and PPC incidence after abdominal surgery remain unclear. The objective of this study was to compare the effects of LET on pulmonary volumes, respiratory muscle activation, and PPC incidence after major, elective upper abdominal surgery. ⋯ LETs do not modify the changes on thoracoabdominal mechanics or prevent PPCs after abdominal surgery. The indiscriminate use of LETs should not be routinely prescribed to prevent PPCs; however, more studies are required to confirm our results and to change the standard practice.
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Seminars in neurology · Oct 2015
ReviewThe Concussion Toolbox: The Role of Vision in the Assessment of Concussion.
Concussion may lead to subtle changes in brain function, and tests involving the visual system probe higher cortical functioning and increase our sensitivity in detecting these changes. Concussions are acutely and sometimes more persistently associated with abnormalities in balance, cognition, and vision. The visual system involves roughly half of the brain's circuits, including many regions susceptible to head impacts. ⋯ The King-Devick (K-D) test is a visual performance measure that may increase the sensitivity of detecting concussions on the sideline when used in combination with tests of cognition and balance that are part of the Sports Concussion Assessment Tool (3rd ed.; SCAT3). Portable eye movement trackers and pupillometry may in the future improve our neuro-ophthalmic assessment after concussions. Combining visual tasks with neuroimaging and neurophysiology has allowed subtle changes to be detected, may refine our ability to make appropriate return-to-play decisions, and could potentially determine susceptibility to long-term sequelae of concussion.
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ANZ journal of surgery · Oct 2015
Functional and return to work outcomes following major trauma involving severe pelvic ring fracture.
There is limited evidence describing the long-term outcomes of severe pelvic ring fractures. The aim of this study was to describe the longer term independent living and return to work outcomes following severe pelvic ring fracture. ⋯ Despite the severity of the injuries sustained, 77% of severe pelvic ring fracture patients were living independently and 59% had returned to work, 2-years post-injury. Fracture type and management were not key predictors of outcome. Large-scale multi-centre studies are needed to fully understand the burden of severe pelvic ring fractures and to guide clinical management.