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

2014-08-27 03:16:57 | BioPortfolio

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).

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.

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Prevention

Conditions

Ischemic Heart Disease

Intervention

fluid loading

Location

Seoul National University Hospital
Seoul
Korea, Republic of

Status

Not yet recruiting

Source

Seoul National University Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:16:57-0400

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