Optimal Flow Rate During Cardiopulmonary Bypass

August 5, 2014 updated by: Arndt-H. Kiessling, Johann Wolfgang Goethe University Hospital

Regardless of the development of cardiac surgery techniques and technologies, the question of an optimal extracorporeal circulation is still unanswered. There are globally accepted standards of perfusion, however, keep many of these procedures was not evidence-based review.

Generally accepted are flow rates during cardiopulmonary bypasses of 2.5 L/min/m2. This target was derived from the physiological conditions, but they are not the result of an adapted adjustment to the fundamentally non-physiological processes during extracorporeal circulation. Among other things, an increased metabolic demand during re-perfusion is not taken into account.

An increasing and optimizing of the standard flow rate of 0.5 L/min/m2 should be the aim of this investigation. Under optimal perfusion, the investigators are maintaining the microcirculation and organ protection in receipt of endothelial function and oxygen transport.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
      • Frankfurt am Main, Germany, 60590
        • Recruiting
        • Johann Wolfgang Goethe University Hospital
        • Contact:
        • Sub-Investigator:
          • Arndt H Kiessling, MD
        • Sub-Investigator:
          • Eduard Manherz

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Extracorporeal circulation
  • Age > 18
  • Written consent

Exclusion Criteria:

  • Emergency cases

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Flow rate
Comparison between a flow rate of 2.5/l/min/m2 versus 3.0/l/min/m2
Procedure: Flow rate
Different flow rate during cardiopulmonary bypass

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Microcirulation
Time Frame: intraooperative
measurement with O2C
intraooperative

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Johann Wolfgang Goethe University Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2010

Primary Completion (Anticipated)

December 1, 2015

Study Registration Dates

First Submitted

April 15, 2010

First Submitted That Met QC Criteria

April 15, 2010

First Posted (Estimate)

April 16, 2010

Study Record Updates

Last Update Posted (Estimate)

August 6, 2014

Last Update Submitted That Met QC Criteria

August 5, 2014

Last Verified

August 1, 2014

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • CI001AZ-AHK

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe