Display options
Share it on

J Clin Neurol. 2016 Jul;12(3):262-73. doi: 10.3988/jcn.2016.12.3.262.

Intraoperative Monitoring and Mapping of the Functional Integrity of the Brainstem.

Journal of clinical neurology (Seoul, Korea)

Vedran Deletis, Isabel Fernández-Conejero

Affiliations

  1. Laboratory for Human and Experimental Neurophysiology, School of Medicine, Split, Croatia. [email protected].
  2. Department of Intraoperative Neurophysiology, University Hospital of Bellvitge, Barcelona, Spain.

PMID: 27449909 PMCID: PMC4960209 DOI: 10.3988/jcn.2016.12.3.262

Abstract

The risk of iatrogenic damage is very high in surgical interventions in or around the brainstem. However, surgical techniques and intraoperative neuromonitoring (ION) have evolved sufficiently to increase the likelihood of successful functional outcomes in many patients. We present a critical review of the methodologies available for intraoperative monitoring and mapping of the brainstem. There are three main groups of techniques that can be used to assess the functional integrity of the brainstem: 1) mapping, which provides rapid anatomical identification of neural structures using electrical stimulation with a hand-held probe, 2) monitoring, which provides real-time information about the functional integrity of the nervous tissue, and 3) techniques involving the examination of brainstem reflexes in the operating room, which allows for the evaluation of the reflex responses that are known to be crucial for most brainstem functions. These include the blink reflex, which is already in use, and other brainstem reflexes that are being explored, such as the masseter H-reflex. This is still under development but is likely to have important functional consequences. Today an abundant armory of ION methods is available for the monitoring and mapping of the functional integrity of the brainstem during surgery. ION methods are essential in surgery either in or around the brainstem; they facilitate the removal of lesions and contribute to notable improvements in the functional outcomes of patients.

Keywords: brainstem reflexes; intraoperative mapping; intraoperative neuromonitoring; motor-evoked potentials

References

  1. Clin Neurophysiol. 2011 Sep;122(9):1883-9 - PubMed
  2. Acta Neurochir (Wien). 2013 Oct;155(10):1863-9 - PubMed
  3. J Neurosurg. 2000 Oct;93(4):586-93 - PubMed
  4. J Neurosurg. 2007 Mar;106(3):519-20; author reply 520 - PubMed
  5. J Physiol. 2005 May 1;564(Pt 3):931-40 - PubMed
  6. J Neurol Neurosurg Psychiatry. 2009 Apr;80(4):417-22 - PubMed
  7. Clin Neurophysiol. 2011 May;122(5):1048-54 - PubMed
  8. Croat Med J. 2000 Dec;41(4):384-8 - PubMed
  9. Brain Res. 1975 Mar 7;85(3):447-58 - PubMed
  10. Neurosurgery. 1996 Oct;39(4):787-93; discussion 793-4 - PubMed
  11. Muscle Nerve. 2000 Sep;23(9):1445-6 - PubMed
  12. Acta Neurochir (Wien). 2006 May;148(5):499-509; discussion 509 - PubMed
  13. Neurosurgery. 1995 Nov;37(5):922-9; discussion 929-30 - PubMed
  14. J Neurosurg. 2014 Jan;120(1):291-2 - PubMed
  15. Zentralbl Neurochir. 1991;52(1):25-32 - PubMed
  16. Clin Neurophysiol. 2013 Dec;124(12):2291-316 - PubMed
  17. J Neurosurg. 1993 Sep;79(3):393-9 - PubMed
  18. Clin Neurophysiol. 2005 Mar;116(3):588-96 - PubMed
  19. Clin Neurophysiol. 2015 Sep;126(9):1833-9 - PubMed
  20. Neurosurgery. 2004 Jan;54(1):97-104; discussion 104-6 - PubMed
  21. Clin Neurophysiol. 2012 Jan;123(1):78-83 - PubMed
  22. Clin Neurophysiol. 2009 Feb;120(2):336-41 - PubMed
  23. Neurosurgery. 2004 Apr;54(4):916-24; discussion 924 - PubMed
  24. Muscle Nerve. 2009 May;39(5):642-6 - PubMed

Publication Types