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  • Title: Microsensor and microdialysis technology. Advanced techniques in the management of severe head injury.
    Author: Haselman M, Fox S.
    Journal: Crit Care Nurs Clin North Am; 2000 Dec; 12(4):437-46. PubMed ID: 11855247.
    Abstract:
    Neuroscientists continue the search for the "magic bullet" that will prevent the deleterious effects of primary and secondary brain injury. Indirect measurement of the effects of primary and secondary brain injury through the study of ICP- or CPP-directed management, CBF monitoring, Sjo2 monitoring, and TCD monitoring has led to improved care of persons with brain injury. Although the findings from brain injury research using microsensor and microdialysis technology are only preliminary and extensive research is still needed, these technologies have dramatically expanded knowledge about brain injury at the cellular level. Extended neuromonitoring is poised to enter a new and exciting phase because of the growth in knowledge regarding the cellular events associated with brain injury. The recent approval of NeuroTrend by the FDA will further promote this growth. Applications of the technology have already expanded to include uses beyond the management of traumatic brain injury. Microsensor and microdialysis technology is being used intraoperatively to determine "safe" temporary clipping times for aneurysm surgery and is also being used within the critical care setting to improve the monitoring and management of subarachnoid hemorrhage patients who are experiencing vasospasm. The ultimate application of this new technology is to improve long-term outcomes for patients with brain injury through the reduction of secondary brain injury. If that goal is to be accomplished, then it will be important for nurses caring for patients with brain injury to become immersed in this exciting new phase in brain injury monitoring. Nurses must obtain a comprehensive knowledge base of brain injury pathophysiology and how extended neuromonitoring can lead to improved outcomes. Technical proficiency will also be important to ensure that treatment and research conclusions are based on accurate data. Finally and perhaps most importantly, it will be critical for nurses to participate in and develop research studies that explore the impact of interventions, especially nursing care activities, on the injured brain if these exciting new advances are to be translated into tangible benefits for brain-injured patients.
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