The goal of this clinical trial is to learn if high-accuracy augmented reality (AR) guidance for external ventricular drain (EVD) placement using a standalone head-worn navigation system can improve current shortcomings of freehand and image-guidance techniques. It will assess safety, feasibility and clinical performance. The main questions it aims to answer are: * Is the implementation of a standalone head-worn AR navigation system for EVD placement in critical care settings feasible and safe? * How does it compare to the conventional freehand technique in terms of EVD placement quality, complication rate and revision rate? Researchers will assess placement quality using the modified Kakarla scale, grading placement quality based on the position of the EVD tip on postoperative CT imaging. The amount of attempts, complications and revisions will be documented. The results of the AR-guided placements will be compared to a matched, non-concurrent freehand control group. Participants will undergo AR-guided EVD placement in a critical care setting (i.e. the emergency room or intensive care unit).
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Clinical EVD placement quality
Timeframe: Within 24 hours after surgery