NCT05944146

Consistency of Carotid Doppler Blood Flow and Thermodilution Technique

The Consistency of Tracking Changes of Cardiac Output by Carotid Doppler Blood Flow and Thermodilution Technique in Cardiac Surgery Patients

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 200 (estimated)
• Sponsor: Shanghai Zhongshan Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 80 Years
• Healthy volunteers: Not accepted

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.

Conditions

• Cardiac Surgery

Interventions

Type	Name	Description
BEHAVIORAL	passive leg raising	transfer a patient from semi-recumbent position to supine position with a 45° leg lifting
DRUG	Dobutamine	infusion dobutamine

Timeline

• Start date: 2023-05-31
• Primary completion: 2026-12-31
• Completion: 2026-12-31
• First posted: 2023-07-13
• Last updated: 2023-07-13

Locations

1 site across 1 country: China