Journals / Türk Göğüs Kalp Damar Cerrahisi Dergisi / 2013 / Cilt: 21 - Sayı: 4

The effects of normoxic and hyperoxic cardiopulmonary bypass on oxidative stress in cyanotic pediatric patients

Siyanotik çocuk hastalarda normoksik ve hiperoksik kardiyopulmoner baypasın oksidatif strese etkisi

Pages
898–904
Publication Date
2022-09-02
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Controlled reoxygenation strategy should be implemented to prevent or minimize this undesired condition.

📌 3 Key Takeaways

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Objective & Hypothesis:Background: This study aims to investigate the effects of controlled reoxygenation cardiopulmonary bypass on oxidative stress in children undergoing repair of cyanotic congenital heart defect.
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Key Findings & Data:Methods: Thirty cyanotic children (mean age 24.2±17.4 month; range 6 month to 5 years) who underwent surgery using cardiopulmonary bypass for congenital heart defect (Tetralogy of Fallot) were included.
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Conclusion & Impact:Controlled reoxygenation strategy should be implemented to prevent or minimize this undesired condition.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background: This study aims to investigate the effects of controlled reoxygenation cardiopulmonary bypass on oxidative stress in children undergoing repair of cyanotic congenital heart defect. Methods: Thirty cyanotic children (mean age 24.2±17.4 month; range 6 month to 5 years) who underwent surgery using cardiopulmonary bypass for congenital heart defect (Tetralogy of Fallot) were included. The patients were randomly allocated into two groups as normoxic (PaO2: 80-150 mmHg) and hyperoxic (PaO2: 150-250 mmHg) cardiopulmonary bypass. Blood samples for serum malondialdehyde levels, glutathione peroxidase and glutathione reductase response to cardiopulmonary bypass were collected after induction of anesthesia, and at 30 minutes after placement of aortic cross clamp, and 10 minutes and 12 hours after removal of the aortic cross clamp. Results: Hyperoxic cardiopulmonary bypass in the group, serum malondialdehyde and antioxidant enzyme levels were found to be high, at 30 minutes after placement of aortic cross clamp, 10 minutes after removal of the aortic cross clamp, indicating a statistical significance. Conclusion: High level of partial oxygen pressure which is routinely used in cardiopulmonary bypass leads to increased oxyradical damage in cyanotic children. Controlled reoxygenation strategy should be implemented to prevent or minimize this undesired condition.

Özet

Amaç: Bu çalışmada siyanotik doğuştan kalp defekti nedeniyle ameliyat edilen hastalarda, kontrollü reoksijenasyon ile yapılan kardiyopulmoner baypasın oksidatif stres üzerine etkisi değerlendirildi.Ça­lış­ma pla­nı: Çalışmaya doğuştan kalp hastalığı(Fallot tetralojisi) nedeniyle kardiyopulmoner baypas kullanılarak ameliyat edilen 30 siyanotik çocuk(ort. yaş 24.2±17.4 ay; dağılım 6 ay-5 yıl) alındı. Hastalar normoksik (PaO 2: 80-150 mmHg) vehiperoksik (PaO 2: 150-250 mmHg) kardiyopulmoner baypas uygulananlar olarak ikiye ayrıldı. Serum malondialdehit düzeyleri, glutatyon peroksidaz ve glutatyon redüktazın kardiyopulmoner baypasa yanıtınıdeğerlendirmek için anestezi indüksiyonundan sonra,aortik kros klempin 30. dakikasında ve aortik krosklemp kaldırıldıktan 10 dakika ve 12 saat sonra kanörnekleri alındı.Bul­gu­lar: Hiperoksik kardiyopulmoner baypas uygulanan grupta, malondialdehit ve antioksidan enzim düzeyleri aortik kross klempin 30. dakikasında ve aortik kros klempkaldırıldıktan 10 dakika sonra yüksek olduğu ve istatistiksel olarak anlamlı olduğu bulundu. So­nuç: Kardiyopulmoner baypasta rutin uygulanan yüksek parsiyel oksijen basıncı değerleri, siyanotik çocuklarda oksiradikal hasarının artmasına neden olmaktadır. Bu istenmeyen tablonun önüne geçmek veya azaltmak için kontrollü reoksijenasyon stratejisi kullanılmalıdır.

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Cite This Article

SALİH, O. K., GÖÇEN, U., TOPÇUOĞLU, M. Ş., ATALAY, A., YALINIZ, H., BAŞTÜRK, Y., KEKLİK, V., ASLAN, M. (2022). The effects of normoxic and hyperoxic cardiopulmonary bypass on oxidative stress in cyanotic pediatric patients. Türk Göğüs Kalp Damar Cerrahisi Dergisi, Cilt: 21 - Sayı: 4, 898–904. https://ajindex.com/articles/424477

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