ISSN : 1301-5680
e-ISSN : 2149-8156
Turkish Journal of Thoracic and Cardiovascular Surgery     
An evaluation of bilateral cerebral oxygen saturation during cyanotic and non-cyanotic cardiac surgery
Zeliha Aslı Demir1, Ümit Karadeniz1, Aslı Dönmez1, Bahar Aydınlı1, Ayşenur Paç3, Mustafa Paç2, Tulga Ulus2, Ayşegül Özgök1, Özcan Erdemli1
1Departments of Anaesthesiology and Reanimation, Türkiye Yüksek İhtisas Training and Research Hospital, Ankara, Turkey
2Departments of Cardiovascular Surgery, Türkiye Yüksek İhtisas Training and Research Hospital, Ankara, Turkey
3Departments of Pediatric Cardiology, Türkiye Yüksek İhtisas Training and Research Hospital, Ankara, Turkey
DOI : 10.5606/tgkdc.dergisi.2016.12679
Background: This study aims to investigate cerebral oxygenation differences between cyanotic and non-cyanotic pediatric cardiac surgery patients using near-infrared spectroscopy.

Methods: Between January 2013 and May 2013, a total of 25 pediatric patients (10 boys, 15 girls) were included in this prospective study. Cyanotic group (group C) included 11 patients who received total correction for tetralogy of Fallot, while the non-cyanotic group (group NC) included 14 patients whose simple congenital heart disease was surgically repaired. Bilateral near-infrared spectroscopy values at varying time points: post-induction (T1), prebypass (T2), on cross-clamp (T3), after removal of crossclamp (T4), rewarming (T5), off bypass (T6), and end of the operation (T7) were recorded. Also, hemodynamic variables, body temperature, blood gas parameters, lactate, oxygen content, hematocrit values, mechanical ventilation duration, and length of intensive care unit and hospital stay were noted.

Results: There was no significant difference in the right and left cerebral oxygenation values between the groups. Similarly, no significant difference was observed in the right and left cerebral oxygenation in each individual group. None of the patients experienced morbidity or mortality following surgery.

Conclusion: Although hematocrit, arterial oxygen, and carbon dioxide pressure may alter in cyanotic cardiac diseases, bilateral cerebral oxygenation values appear to be similar between cyanotic and non-cyanotic patients. Although there were significant physiopathological differences between the groups, NIRS values did not differ.

Keywords : Cardiac surgery; cerebral oxygenation; cyanotic heart disease; near-infrared spectroscopy; non-cyanotic heart disease; pediatric congenital heart disease
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