New method for non-invasive measurement of cardiac output with vector flow mapping

JRCT ID: jRCT1032210381

Registered date:20/10/2021

Basic Information

• Recruitment status: Recruiting
• Health condition(s) or Problem(s) studied: Cardiovascular disease
• Date of first enrollment: 24/10/2021
• Target sample size: 12
• Study type: Interventional
• Intervention(s): Transthoracic echocardiography will be performed before and after surgery. Before surgery, it will be performed when patients are admitted to our hospital, and when Swan-Ganz catheter is inserted in operating room. After surgery, it will be performed on admission to the intensive care unit (ICU), 2 hours, and 4 hours after admission to the ICU, and when patients are extubed.

Outcome(s)

• Primary Outcome: We will compare measurements of cardiac output, with Swan-Ganz catheter and with vector flow mapping.
• Secondary Outcome: We will compare measurements of cardiac output, with Swan-Ganz catheter and with VTI method and biplane method.

Key inclusion & exclusion criteria

• Age minimum: >= 20age old
• Age maximum: < 90age old
• Gender: Both
• Include criteria: Patients who require cardiovascular surgery monitored with Swan-Ganz catheter.

Exclude criteria

1. Patients who undergo emergency surgery.
2. Patients with continuous arrhythmia. (i.e. chronic atrial fibrillation)
3. Other patients judged to be inappropriate by the principal investigator or investigator

Related Information

• Primary Sponsor: Inui Tomohiko
• Secondary Sponsor: Kanda Tomoyoshi
• Source(s) of Monetary Support: JSPS KAKENHI Grant