Effects of Cerebral Oxygen Saturation on Neuropsychological Outcomes

NCT ID: NCT00151307

Last Updated: 2008-06-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2001-02-28

Study Completion Date

2007-04-30

Brief Summary

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The purpose of this study is to evaluate the effects of maintaining adequate cerebral oxygen saturation (over 40%) on patients undergoing cardiac surgery. Effects on neuropsychological outcome, length of ICU stay, and length of hospital stay will be measured.

Detailed Description

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Central nervous system dysfunction is a major cause of morbidity after cardiac surgery. This study seeks to evaluate the effects of cerebral oxygen saturation on the neuropsychological outcome of cardiac surgery patients. Currently, monitoring of cerebral oxygen saturation levels is not part of routine and standard practice.

Subjects will be assigned to a control and intervention group. Anesthesia and surgery will be performed as per usual standards of care. Patients in both groups will be monitored with an oxygen sensor placed over the forehead. The data will be recorded continuously on a floppy disk. The control group will be treated according to current standard of care; the readings of brain oxygen saturation will not be visible to the clinician. In the intervention group, the reading of brain oxygen saturation will be monitored by the anesthesiologist throughout surgery. Interventions will be performed to maintain cerebral oxygen saturations above 40%. Neuropsychological tests will be completed pre-operatively and at two time points post-operatively. The tests used are the ASEM (antisaccadic eye movement) and the MMSE (mini-mental state examination).

Conditions

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Cardiovascular Diseases Postoperative Complications

Keywords

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Heart surgery Cerebral oxygen saturation Neuropsychological function

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Interventions

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INVOS cerebral oximeter

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Adult patient
* Elective cardiac surgery with cardiopulmonary bypass
* Coronary artery disease or valvular heart disease or combination of both
* Ability and willingness to give informed consent

Exclusion Criteria

* Pediatric patients
* Emergency surgery
* Unable to understand English
* Allergic to tape used to attach oxygen sensor
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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New York Presbyterian Hospital

OTHER

Sponsor Role collaborator

Weill Medical College of Cornell University

OTHER

Sponsor Role lead

Principal Investigators

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Fun-Sun Yao, M.D.

Role: PRINCIPAL_INVESTIGATOR

Anesthesiology; Weill Medical College of Cornell University, New York Presbyterian Hospital

Locations

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New York Presbyterian Hospital, Weill Medical College of Cornell University

New York, New York, United States

Site Status

Countries

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United States

References

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Yao FS, Tseng CC, Ho CY, Levin SK, Illner P. Cerebral oxygen desaturation is associated with early postoperative neuropsychological dysfunction in patients undergoing cardiac surgery. J Cardiothorac Vasc Anesth. 2004 Oct;18(5):552-8. doi: 10.1053/j.jvca.2004.07.007.

Reference Type BACKGROUND
PMID: 15578464 (View on PubMed)

Other Identifiers

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0599-691

Identifier Type: -

Identifier Source: org_study_id