Neurosurgical Care | Technology & Monitoring in Anesthesiology
Analysis of pressure gradients during neuro-endoscopy
AF Kalmar*, Frank Dewaele, Hugo Vereecke, Anthony Absalom, Michel MRF Struys, Jacques Caemaert
*Corresponding author: AF Kalmar
Anaesthesiology, University Medical Center Groningen (UMCG), Groningen, Netherlands
F1000Posters 2013, 4: 81 (poster) [English]
Poster [0 KB]
American Society of Anesthesiologists (ASA) Annual Meeting 2010, 16 - 20 Mar 2010, P000
University Medical Center Groningen (UMCG)
Significant increases in intracranial pressure (ICP) may arise during neuro-endoscopic procedures. Initially, it was assumed that an open outflow channel would prevent a rapid build-up of intracranial pressure. However, it has become clear that to detect and prevent serious and sustained increases, ICP should be monitored.
In a model head, measurements at the rinsing inlet overestimated the ventricular pressure by ~50 mmHg during high rinsing flow rates, whereas measurements at the rinsing outlet underestimated the pressure by ~50 mmHg. An electronic tip sensor or pressure capillary placed at the distal end of the lumen of the rinsing channel of the endoscope produced measurements that are equivalent to ventricular pressures, without interfering with rinsing fluid flow.
A patent application was filed.
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