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FloTrac Sensor + Vigileo Monitor used to decide how much fluid to give during surgery.

FloTrac Sensor + Vigileo Monitor only used for data collection during surgery; Standard of Care to decide fluid amount.

Study Group = The monitor and routine vital sign measurements will be used to decide how much fluid to give during surgery; Control Group = Information from the monitor will be collected and compared to the information collected from participants in Study Group.

Vigileo Monitor

Device connected to the patient's arterial line and Vigileo monitor that measures fluid requirements during surgery.

FloTrac Sensor

Gabriel Mena, MD

The purpose of this study is to determine whether the early identification and more precise intervention of operating room (OR) patient fluid administration optimization using arterial pressure-based cardiac output (APCO) yields comparable patient outcome as fluid administration optimization using a global standard care method.

THE EDWARDS VIGILEO MONITOR:

The Vigileo™ monitor measures the amount of blood the heart pumps through the body.

SCREENING TEST:

Before you can begin this study, you will have a "screening test" to help the doctor decide if you are eligible to take part in this study. Women who are able to have children must have a negative urine pregnancy test.

STUDY GROUP:

If you are found to be eligible to take part in this study, you will be randomly assigned (as in the flip of a coin) to either the Control Group or the Study Group. You will have an equal chance of being assigned to either group. You will not know to which group you have been assigned.

STUDY PARTICIPATION:

You will have a arterial catheter (small plastic tube) inserted into an artery inside your wrist at the beginning of surgery. This is used routinely (even in patients not taking part in the study) to measure your blood pressure more accurately rather than with a blood pressure cuff. It is inserted after you receive general anesthesia (numbing medicine), so you should feel no pain. If it is inserted while you are awake (based on the judgment of your anesthesiologist), then local anesthesia will be given to you to reduce discomfort.

If your doctors decide that an arterial catheter is not required as part of your routine medical care during your surgery, they will not place one for study purposes only. In that situation, you will be removed from the study, and your medical care will continue as planned by your doctors.

If the catheter is placed, the Vigileo™ monitor will be connected to the catheter and readings will be taken during the surgery. It will be disconnected at the end of surgery.

If you are in the Study Group, your doctor will use the monitor and routine vital sign measurement to decide how much fluid to give you during surgery.

If you are in the Control Group, your doctor will not know the information being collected by the monitor, as it will be collected and compared to the information collected from participants in the Study Group. The amount of fluid you received during surgery will be decided by routine vital sign measurement, as is standard of care.

ESOPHAGEAL DOPPLER:

Regardless of study group assignment, during your surgery, researchers will also connect an esophageal doppler which will also collect data on fluid volume.

The esophageal doppler is a thin, tube-like device that is placed in your throat while you are asleep. This is used routinely by doctors to assist in the administration of fluids during surgery.

The information from the doppler will be compared to the information collected from the Vigileo™ monitor. The esophageal doppler measures blood flow through your heart by ultrasound waves.

LENGTH OF STUDY:

You will be considered off study once you leave the recovery room.

FOLLOW-UP:

Researchers will be collecting information on your progress during and after surgery, including when you are allowed to leave the hospital. Your medical records will be reviewed after surgery and up to 6 months after surgery to see how you are doing and if you have had any medical problems. The kind of information researchers will be collecting is the amount of time you were in the intensive care (if any), amount of time in the hospital, any complications or problems you may have had, how well you organs are functioning, and general health information.

This is an investigational study. The Vigileo™ Monitor and esophageal doppler are FDA approved and commercially available for volume monitoring. The comparison of the monitor and doppler is investigational.

Up to 218 patients will be enrolled in this multi-center study. Up to 66 will be enrolled at M.D. Anderson.

Evaluation of Arterial Pressure Based Cardiac Output for Goal-Directed Perioperative Therapy

Randomized Evaluation of Arterial Pressure Based Cardiac Output for Goal-Directed Perioperative Therapy

Length of hospital stay of arterial pressure-based cardiac output (APCO) monitor participants versus the participants using the global standard care guided by esophageal Doppler, measured in days.

Edwards Lifesciences

M.D. Anderson Cancer Center

Study Group: FloTrac Sensor + Vigileo Monitor used to decide how much fluid to give during surgery; and Control Group: FloTrac Sensor + Vigileo Monitor only used for data collection during surgery while Standard of Care used to decide fluid amount.

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