Accuracy of Non-invasive Effective Pulmonary Perfusion Measurement by CO2

Cardiovascular Disease Clinical Trial

Official title: Accuracy and Precision of Non-invasive Effective Pulmonary Perfusion Measurement Using Volumetric Capnography

Status Completed

Clinical Trial Summary

Cardiac output monitoring is mandatory in most surgical and critical care patients. Many techniques to assess cardiac output are invasive and/or have many limitations, contraindications and drawbacks. The measurement of cardiac output throughout the CO2 signal is an interesting option due to the simplicity and non-invasive nature of its calculation.

The present study was designed to compare the cardiac output measurement using a capnodynamic formula versus the reference thermodilution method.

Clinical Trial Description

This is a prospective and observational study designed to test the accuracy and precision of the non-invasive capnodynamic cardiac output measurement in mechanically ventilated patients. We will study 30 patients undergoing cardiovascular by pass in which an invasive trans-thoracic thermodilution method (PICCOScience) is indicated - the reference method.

A pair of thermodilutions and capnodynamic cardiac output measurement will be performed along the surgery. Analysis of precision will be done at the begining of the protocol and during stable hemodynamic conditions. Accuracy will then assessed using the Bland-Altmann plot and regression analysis. ;

Related Conditions & MeSH terms

• Cardiovascular Disease
• Cardiovascular Diseases

• NCT number: NCT02382120
• Study type: Observational
• Source: Hospital Privado de Comunidad de Mar del Plata
• Status: Completed
• Start date: March 2, 2015
• Completion date: July 21, 2018