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This is a prospective observational study to investigate if a non-invasive blood pressure monitoring device, the CareTaker Pulse Decomposition Analysis (PDA), can accurately measure blood pressure in children when compared to an arterial line. Enrolled patients will have the CareTaker PDA device placed on their finger during their operation to collect data for 30 minutes. Blood pressure readings from the CareTaker PDA device will be compared to measurements from the patient's indwelling arterial line, which will be placed as part of the patient's clinical care plan.


Blood Pressure

Recruitment Status


Eligibility Criteria

Inclusion Criteria:

Plan to receive an invasive arterial blood pressure monitor as part of their anesthesia care plan at the BCH Longwood campus

Exclusion Criteria:

Patients with vascular or congenital heart disease known to affect large and small arteries
Patients who declined to participate.


Intervention Type

Intervention Name


CareTaker PDA Device


Not Applicable



Min Age

2 Years

Max Age

17 Years

Download Date

June 9, 2021

Principal Investigator

Karen Boretsky

Primary Contact Information

Karen Boretsky, MD


For more information on this trial, visit


For more information and to contact the study team: