Consistency of Carotid Doppler Blood Flow and Thermodilution Technique

Summary

Currently, the gold standard method to estimate CO is the thermodilution technique, pulmonary artery catheter (PAC) and PiCCO system included, however, the invasiveness and complexity of the thermodilution technique have limited their usefulness in many clinical scenarios. By measuring the carotid blood flow, continuous carotid doppler technique has been reported to noninvasively estimate cardiac output (CO) and other parameters related to cardiac contractility and fluid status in various cardiovascular disorders. However, to the best of our knowledge, few study has been reported to evaluate the consistency of this technique in cardiac surgery patients. The aim of this study is to evaluate the tracking ability of CO changes measured by continuous carotid doppler technique in cardiac surgery patients, use the thermodilution technique as the referenced.

Timeline

Start

2023-05-31

Primary completion

2026-12-31

Completion

2026-12-31

Publications

• Hao GW, Huang DL, Ma GG, Su Y, Hou JY, Zhang YJ, Liu WJ, Lu ZH, Luo Z, Tu GW. Ability of the continuous carotid Doppler patch to track directional changes in cardiac output in cardiac surgery patients. Eur J Med Res. 2026 Feb 24. doi: 10.1186/s40001-026-04034-3. Online ahead of print.

Drugs

Indications

No indication recorded.