Performance Evaluation of the ViTrack Continuous Non-invasive Blood Pressure Measurement Device

Inclusion Criteria: * scheduled to undergo noncardiac surgery with general or spinal anesthesia * clinical indication for invasive intra-arterial pressure monitoring * palpable pulse Exclusion Criteria: * difference of greater than 10 mmHg in the left versus right arm oscillometric systolic blood pressure * Upper extremity arteriovenous hemodialysis shunt * Upper extremity amputation * Planned surgical position/draping that precludes access to the wrist * Wrist distortion or pain from arthritis * Prior trauma or surgery at the radial artery monitoring site * Unable to provide informed consent * Clinical contraindication as determined by the clinical team or study investigators