Measurement of Pulse Pressure Variation and Cardiac Output by a New Application for Android™ (Captesia™)

Free University of Brussels (ULB)

Status: Completed

Conditions: Coronary Bypass

Treatments: Other: Calculation of PPV and CO with two methods

Study type: Observational

Funder types: Other

Identifiers

NCT02692222

B406201526827

Details and patient eligibility

About

This study test the agreement and accuracy of Pulse Pressure Variation (PPV) and Cardiac Output (CO) obtained by the Android application Capstesia™ against the gold standard : PPV and CO calculated by thermodilution.

Full description

Pulse pressure variation (PPV) remains a good predictor of fluid responsiveness in the OR. However, PPV can be time-consuming to calculate (manual determination), is not always displayed on monitoring screens nor reliable through visual assessment and needs additional devices to be displayed. A new Android application (Captesia) automatically calculates the PPV utilizing a digital photograph of the arterial waveform from the monitor. The application determines the PPV by selecting peaks and troughs of the arterial curve.

Enrollment: 57 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• patients scheduled for coronary artery bypass

Exclusion criteria

• patients with arrhythmias like atrial fibrillation
• patients with valvular insufficiency

Trial design

57 participants in 1 patient group

PPV

Description:

This study will track changes in PPV and CO before and after of volume expansion, which goal is to change the cardiac output.

Treatment:

Other: Calculation of PPV and CO with two methods