ICP monitoring in the rat

Comparison of monitoring in the ventricle, brain parenchyma, and cistema magna

Marike Zwienenberg-Lee, Qin Zhi Gong, Lillian L. Lee, Robert F Berman, Bruce G Lyeth

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Various methods of continuous intracranial pressure (ICP) monitoring during experimental procedures in the rat have been described. However, no systematic comparison of ICP monitoring in the ventricle, brain parenchyma, and cisterna magna has been reported. Since accurate and reliable ICP measurements are important in experimental models of traumatic brain injury, the present study was conducted to compare simultaneous ICP measurements from ventricular, cisterna magna, and intraparenchymal monitors during ICP changes. Subdural hematoma was produced by infusion of 0.3 ml of autologous blood into the subdural space over 6 min. The ventricular and the intraparenchymal fiberoptic catheter produced reliable and comparable pressure recordings, that did not statistically differ (p = 0.4), throughout the one hour monitoring time. In contrast, the cisterna magna catheter was less reliable and produced significantly lower readings throughout the monitoring time (p < 0.001). The intraparenchymal device produced greater cortical damage than the ventricular catheter. In conclusion, ventricular ICP monitoring is the preferred method under these circumstances, since it is accurate and induces least brain damage.

Original languageEnglish (US)
Pages (from-to)1095-1102
Number of pages8
JournalJournal of Neurotrauma
Volume16
Issue number11
StatePublished - Nov 1999

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Intracranial Pressure
Cisterna Magna
Brain
Catheters
Subdural Space
Subdural Hematoma
Ventricular Pressure
Reading
Theoretical Models
Pressure
Equipment and Supplies

Keywords

  • Intracranial pressure monitoring
  • Rat
  • Subdural hematoma

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

Cite this

ICP monitoring in the rat : Comparison of monitoring in the ventricle, brain parenchyma, and cistema magna. / Zwienenberg-Lee, Marike; Gong, Qin Zhi; Lee, Lillian L.; Berman, Robert F; Lyeth, Bruce G.

In: Journal of Neurotrauma, Vol. 16, No. 11, 11.1999, p. 1095-1102.

Research output: Contribution to journalArticle

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