Pakistan Journal of Medical Sciences

Published by : PROFESSIONAL MEDICAL PUBLICATIONS

ISSN 1681-715X

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ORIGINAL ARTICLE

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Volume 23

April - June (Part-II) 2007

Number 3


 

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The relationship between cerebral oxygen saturation
changes and Post operative neurologic complications
in patients undergoing cardiac surgery

Sohrab Negargar1, Ata Mahmoudpour2, Reza Taheri3, Sarvin Sanaie4

ABSTRACT
Objective: To study the relationship between cerebral oxygen saturation changes and postoperative neurologic complications.
Methodology: Seventy two adult patients with ASA class II, III who were scheduled for elective cardiac surgery, were randomized into three groups: Group I: with CPB (on –pump) Group II: without CPB (off- pump) Group III: valve surgery. Neuropsychological outcome was assessed by the Mini-Mental State Examination (MMSE). Cerebral oxygen saturation was also measured.
Results: There was no statistical difference in desaturation of more than 20% among three groups (P=0.113) but it was significant between group I and II (P=0.042). Changes of rSo2 in different hours of surgery was significant in group I and group II (P=0.0001 in both ) but it was not significant in group III ( P=0.075) .
Conclusion: Although cerebral oximetry is a noninvasive and useful method of monitoring during cardiac surgery, it has low accuracy to determine postoperative neurologic complications.

KEYWORDS: Cerebral Oxygen Saturation, Cardiopulmonary Bypass, Neurologic Complication.

Pak J Med Sci   May - June 2007   Vol. 23 No. 3    380-385


1. Sohrab Negargar,
Associate Professor of Anesthesiology,
2. Ata Mahmoudpour,
Anesthesiologist,
Fellowship of Intensive Care Medicine,
3. Reza Taheri,
Anesthesiologist,
4. Sarvin Sanaie,
General Physician,
1-4: Departement of Anesthesiology and
Intensive Care,
Shahid Madani Research Center,
Tabriz,
Iran.

Correspondence

Ata Mahmoudpour
No. 26, Homam Tabrizi Ave,
Mosaddeg square, Vali-Asr,
Tabriz – Iran.
Email: dr_am5757@yahoo.com

* Received for Publication: July 13, 2006
* Accepted: January 25, 2007



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