Non Invasive Continuous Blood Pressure Sensor

Dartmouth Health

Status: Completed

Conditions: Arterial Line; Blood Pressure; Anesthesia

Study type: Observational

Funder types: Other

Identifiers

NCT05689294

STUDY02001549

Details and patient eligibility

About

The primary objective of this study is to collect training data in order to establish a method for correlating arterial blood pressure with voltage output signals from a non-invasive piezoelectric array sensor placed on the skin superficial to the radial artery.

Full description

The primary objective of this study is to collect training data in order to establish a method for correlating arterial blood pressure with voltage output signals from a non-invasive piezoelectric array sensor placed on the skin superficial to the radial artery. The development of this sensor could allow for non-invasive continuous measurement of arterial blood pressure.

The key hypothesis is: if the piezoelectric array sensor can detect pulsatile pressure waves when placed on a near surface artery and pulse wave analysis has been shown to allow for accurate beat-to-beat estimation of blood pressure, then the device placed superficial to a near surface artery should allow for the non-invasive estimation of continuous blood pressure.

Secondary objectives include identification of any significant ergonomic and motion artifact issues that could affect sensor utilization in future applications.

Enrollment: 15 patients

Sex: All

Ages: 18 to 100 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Adults (18yr and older)
• Undergoing a planned (non-emergent, non-urgent) surgical procedure at DHMC for which an invasive arterial pressure monitor is standard clinical practice. Typical surgical procedures include but are not limited to craniotomy, thoracic surgery, abdominal surgery, and others.

Exclusion criteria

• Morbid obesity (BMI >40)
• Radial artery depth > 1cm from skin at location of sensor
• Peripheral vascular disease
• Atrial fibrillation
• Sensitivity or allergy to silicone or medical adhesive tape
• Inability to consent.