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Systolic Blood Pressure Measurement in Critically-ill Patients

NCT02366507 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 12

Last updated 2022-04-28

No results posted yet for this study

Summary

Traditional devices to measure blood pressure include automatic sphygmomanometer (pressure) cuff systems or manual blood pressures obtained by auscultation (listening with a stethoscope). Both these techniques fail to provide accurate and consistent blood pressure in the hypotensive (low blood pressure) state, which is often encountered in emergency departments and intensive care units. Alternately, invasive arterial pressure measurement is time-intensive, painful, expensive, and risks include bleeding, infection, and neurovascular injury.

In clinical practice, the Doppler velocimetry system is occasionally used in hypotensive, critically-ill patients when an immediate systolic blood pressure measurement is vital for clinical and therapeutic management. With a technique similar to that used to obtain a manual blood pressure, the Doppler velocimetry system can be used in place of the auscultation of the brachial pulse to accurately determine the systolic blood pressure. It is currently unknown whether additional information can be obtained by evaluation of the Doppler waveform in healthy vs. critically-ill patients. The goal is this project is to digitally record Doppler waveforms of critically-ill patients in the Emergency Department (ED) via a standard 8MHz (fetal) Doppler probe, correlate the Doppler readings with current blood pressure and heart rate, and determine if waveform shapes and parameters are predictive of hemodynamic compromise.

Conditions

Sponsors & Collaborators

  • University of North Carolina, Charlotte

    collaborator OTHER

  • Wake Forest University Health Sciences

    lead OTHER

Principal Investigators

  • David A Pearson, MD · Carolinas Medical Center

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2014-07-31
Primary Completion
2015-09-30

Countries

  • United States

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02366507 on ClinicalTrials.gov