Impedance Cardiography During Major Abdominal Surgery

Inje University

Status and phase: Completed; Phase 4

Conditions: Abdominal Surgery

Treatments: Device: Niccomo™ (Medis, Ilmenau, Germany) impedance cardiography

Study type: Interventional

Funder types: Other

Identifiers

NCT01611376

ICG-01-Choe

Details and patient eligibility

About

The investigators validated ICG's(impedance cardiography) usefulness during the abdominal surgery, by comparing it with FloTrac/Vigileo™ (Edwards Lifesciences,Irvine, CA, USA)

Full description

Intrathoracic structures have relatively constant resistance except the influence of changing diameter of aorta. Great vessels in thorax has the lowest resistance, and their diameter changes by the beats of the heart. As their diameter increases, their resistance decreases. ICG measures the difference between the resistances caused by heartbeats, and calculates cardiac output.

But during the surgery, there are many interfering electrical currents made by electro cautery, patient positioning, and internal organ handling. Therefore, it has been thought that ICG is not a valid tool for measuring cardiac output during the surgery.

The investigators validated ICG's usefulness during the surgery, by comparing it with Floctac/Vigileo.

Enrollment: 11 patients

Sex: All

Ages: 20 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients undergoing open gastrectomy with arterial line
• ASA 1 & 2

Exclusion criteria

• severe valve disease
• severe lung disease

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)