Pulse Pressure Variation (PPV) to Predict Fluid Responsiveness During Cardiac Displacement in Patients Undergoing Off-pump Coronary Artery Bypass Surgery (OPCAB)

Pulse Pressure Variation to Predict Fluid Responsiveness During Cardiac Displacement in Patients Undergoing Off-pump Coronary Artery Bypass Surgery

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01041742

Enrollment

Registered

2010-01-01

Start date

2009-12-31

Completion date

2010-01-31

Last updated

2010-07-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ischemic Heart Disease

Brief summary

Pulse pressure variation (PPV) known as a dynamic preload index is increasingly being used for guide of fluid management under various clinical situations. We hypothesized that PPV could play a role as a predictor of fluid responsiveness during displacement of the heart in patients undergoing off-pump coronary artery bypass surgery (OPCAB).

Detailed description

The aim of this study was to investigate the ability of PPV to predict fluid responsiveness during displacement of the heart in patients undergoing off-pump coronary artery bypass surgery. After anesthesia, we will measure mean arterial pressure, heart rate, central venous pressure, mean pulmonary artery pressure, pulmonary arterial occlusion pressure, mixed venous oxygen saturation, PPV and cardiac index in patients receiving elective OPCAB. All parameters will be recorded at 5 minutes after the left anterior descending artery anastomosis, immediately after the displacement of the heart for the left circumflex artery anastomosis, and 10 minutes after fluid loading with hydroxyethyl starch 6%(10 mL/kg). Patients whose cardiac index increased by \>15% to fluid loading will be defined as responders. To test the abilities of central venous pressure, pulmonary artery occlusion pressure and PPV to predict fluid responsiveness during heart displacement, areas under the receiver operating characteristics curves of the responders will be calculated and compared.

Interventions

PROCEDUREfluid loading

fluid loading will be performed by using 6% hydroxyethyl starch solution , at 10 mL/kg.

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

PREVENTION

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to 80 Years

Healthy volunteers

Inclusion criteria

* patients undergoing elective off-pump coronary artery bypass surgery

Exclusion criteria

* unstable angina, preoperative arrhythmia, reduced ventricular function (ejection fraction \< 40%), more than mild degree valvular heart disease, preoperative use of vasopressors or mechanical assist devices, intra-cardiac shunt, pulmonary artery hypertension, severe peripheral vascular obstructive disease, or esophageal pathology precluding the use of transesophageal echocardiography (TEE)

Design outcomes

Primary

Measure	Time frame
pulse pressure variation	during displacement of the heart in OPCAB

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026