“…A number of different anaesthetic techniques for the Stagnara wake-up test have been advocated, including volatile-based anaesthesia. A Danish group, 58 in a randomized trial involving 40 patients, described the successful use of a midazolam-based anaesthetic, antagonized by¯umazenil at the time of the wake-up test, compared with a propofol infusion technique. The midazolam/¯umazenil group was found to have a shorter intraoperative wake-up time (mean 2.9 vs 16 min in the propofol group), shorter postoperative wake-up times (1.8 vs 13.9 min, respectively), and a better quality of intraoperative arousal.…”
The spectrum of spinal surgery in adult life is considerable. Anaesthesia for major spinal surgery, such as spinal stabilization following trauma or neoplastic disease, or for correction of scoliosis, presents a number of challenges. The type of patients who would have been declined surgery 20 yr ago for medical reasons, are now being offered extensive procedures. They commonly have preoperative co-morbid conditions such as serious cardiovascular and respiratory impairment. Airway management may be difficult. Surgery imposes further stresses of significant blood loss, prolonged anaesthesia, and problematical postoperative pain management. The perioperative management of these patients is discussed. The advent of techniques to monitor spinal cord function has reduced postoperative neurological morbidity in these patients. The anaesthetist has an important role in facilitating these methods of monitoring.
“…A number of different anaesthetic techniques for the Stagnara wake-up test have been advocated, including volatile-based anaesthesia. A Danish group, 58 in a randomized trial involving 40 patients, described the successful use of a midazolam-based anaesthetic, antagonized by¯umazenil at the time of the wake-up test, compared with a propofol infusion technique. The midazolam/¯umazenil group was found to have a shorter intraoperative wake-up time (mean 2.9 vs 16 min in the propofol group), shorter postoperative wake-up times (1.8 vs 13.9 min, respectively), and a better quality of intraoperative arousal.…”
The spectrum of spinal surgery in adult life is considerable. Anaesthesia for major spinal surgery, such as spinal stabilization following trauma or neoplastic disease, or for correction of scoliosis, presents a number of challenges. The type of patients who would have been declined surgery 20 yr ago for medical reasons, are now being offered extensive procedures. They commonly have preoperative co-morbid conditions such as serious cardiovascular and respiratory impairment. Airway management may be difficult. Surgery imposes further stresses of significant blood loss, prolonged anaesthesia, and problematical postoperative pain management. The perioperative management of these patients is discussed. The advent of techniques to monitor spinal cord function has reduced postoperative neurological morbidity in these patients. The anaesthetist has an important role in facilitating these methods of monitoring.
“…An alternative or complement to intraoperative neuromonitoring, is the Stagnara Wake-up test to assess the anterior motor por-tion of the spinal cord. 39,49,52 However, this requires preoperative planning with the aenesthetist and a patient who can understand and comply with directions. The ankleclonus test is another intraoperative test of motor function as described by Hoppenfeld et al 43 that can be used to test anterior cord function.…”
Section: Surgical Causes Of Posci In the Thoracic Spinementioning
ObjectIn this report, the authors suggest evidence-based approaches to minimize the chance of perioperative spinal cord injury (POSCI) and optimize outcome in the event of a POSCI.MethodsA systematic review of the basic science and clinical literature is presented.ResultsAuthors of clinical studies have assessed intraoperative monitoring to minimize the chance of POSCI. Furthermore, preoperative factors and intraoperative issues that place patients at increased risk of POSCI have been identified, including developmental stenosis, ankylosing spondylitis, preexisting myelopathy, and severe deformity with spinal cord compromise. However, no studies have assessed methods to optimize outcomes specifically after POSCIs. There are a number of studies focussed on the pathophysiology of SCI and the minimization of secondary damage. These basic science and clinical studies are reviewed, and treatment options outlined in this article.ConclusionsThere are a number of treatment options, including maintenance of mean arterial blood pressure > 80 mm Hg, starting methylprednisolone treatment preoperatively, and multimodality monitoring to help prevent POSCI occurrence, minimize secondary damage, and potentially improve the clinical outcome of after a POSCI. Further prospective cohort studies are needed to delineate incidence rate, current practice patterns for preventing injury and minimizing the clinical consequences of POSCI, factors that may increase the risk of POSCI, and determinants of clinical outcome in the event of a POSCI.
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