Articles: function.
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Intraoperative neurophysiologic monitoring provides useful information on the functional status of the nervous system. This review focuses on recently published data concerning the impact of monitoring on patient outcome. ⋯ Brain monitoring facilitates anesthetic drug administration. An increasing number of neurosurgical procedures will require some form of intraoperative neurophysiologic monitoring to achieve higher degrees of safety and accuracy. In many instances, the data derived from monitoring will guide and influence surgical decisions. In this context, neurophysiologic monitoring should be regarded as interventional.
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Percutaneous disc decompression using Coblation (Nucleoplasty trade mark) implements the principle of volumetric reduction to achieve disc decompression and reduce intradiscal pressure. Previous analyses have shown that Nucleoplasty achieves reduction in volume and intradiscal pressure with minimal damage to surrounding tissue in the treated disc. ⋯ Nucleoplasty for disc decompression is one of the least-invasive techniques in the minimally invasive category, thus far exhibiting a very low incidence of complications. Although no long-term data are available, these preliminary results indicate that the Nucleoplasty procedure is a safe and moderately effective procedure for reducing pain in patients presenting with predominant discogenic low back pain associated with contained disc herniation.
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To review the mechanisms of metabolic acidosis in sepsis. ⋯ Understanding the effects of acid-base on the inflammatory response is relevant as all forms of metabolic acidosis appear to be associated with prolonged hospital and ICU length of stay. Since metabolic acidosis is both commonly caused and treated by clinicians, understanding of the physiologic consequences of altered blood pH is imperative.
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The use of epidural steroid injections as a treatment for patients with degenerative lumbar scoliotic spinal stenosis and radiculopathy has received sparse attention in the literature. Even though it has been reported that patients with scoliosis may respond differently than other patient groups to conservative therapeutic interventions for low back pain and radiculopathy, patients with scoliosis have rarely, if ever, been excluded from clinical studies of epidural steroid injections. To date, there are no studies investigating the efficacy of fluoroscopic transforaminal epidural steroid injections as a treatment for patients with radiculopathy and radiographic evidence of degenerative lumbar scoliotic stenosis. ⋯ Fluoroscopic transforaminal epidural steroid injections appear to be an effective nonsurgical treatment option for patients with degenerative lumbar scoliotic stenosis and radiculopathy and should be considered before surgical intervention.
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The next couple of decades will be characterized by an increase in life expectancy, leading to an older population. As the incidence of Alzheimer's dementia and vascular dementia is rising with age, the future anaesthesiologist will be increasingly confronted with perioperative care of patients with impaired cognitive function. This paper tries to highlight some topics specifically related to demented patients. ⋯ Anaesthesia in the demented patient may be complicated by a number of potential problems, including the comorbid pathology, the concomitant anticholinesterase activity, the need for normoventilation, monitoring of anaesthesia depth and the evaluation of postoperative pain. Anaesthesia in variant Creutzfeldt-Jakob disease is aimed at preventing the spread of the causing prion. There is a broad consensus that early return to the preoperative level of cognition is to be pursued, with the help of short-acting drugs and loco-regional anaesthesia.