Journals / Türk Anestezi ve Reanimasyon Dergisi / 2010 / Cilt: 38 - Sayı: 2

Effects of N-acetylcysteine on ischemia reperfusion in coronary bypass surgery

N-asetilsistein’in koroner arter baypas uygulanan hastalarda iskemi reperfüzyona etkisi

Pages
105–116
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Results: While CO, CI were increased, MPCWP was decreased compared to baseline in Group N (p

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: Available ample evidence reveals that the cause of myocardial damage after coronary artery bypass grafting(CABG) is the uncontrolled release of free oxygen radicals during the frst minutes of reperfusion and the use of appropriate agents improve contractile functions.
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Key Findings & Data:After induction of anaesthesia, 50mg kg-1iv bolus of NAC followed by its infusion (diluted in 500 cc 0.9 % NaCl) at a rate of 50 mg kg-1 /12 hr was instituted to Group N (N-acetylcysteine).
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Conclusion & Impact:Results: While CO, CI were increased, MPCWP was decreased compared to baseline in Group N (p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Aim: Available ample evidence reveals that the cause of myocardial damage after coronary artery bypass grafting(CABG) is the uncontrolled release of free oxygen radicals during the frst minutes of reperfusion and the use of appropriate agents improve contractile functions. One of the most popular methods inhibiting the oxidative damageinvolves the usage of glutathione regulating agents. N-acetylcysteine (NAC) is the mostly investigated agent amongthe glutathione compounds. In this study, the effects of NAC on the ischemic reperfusion damage after CABG, on total antioxidant capacity (TAC),lipid peroxidation, glutathione peroxides (GPx), myeloperoxides (MPO) and cardiac parameters were investigated. Material and Methods: A randomised, controlled clinical study was performed. After induction of anaesthesia, 50mg kg-1iv bolus of NAC followed by its infusion (diluted in 500 cc 0.9 % NaCl) at a rate of 50 mg kg-1 /12 hr was instituted to Group N (N-acetylcysteine). An infusion of 0.9 % NaCl (500 cc/12 hr) was initiated in Group C (control). Onpredetermined time points, blood samples for TAC, lipid peroxidation, GPx, MPO were collected and cardiac output(CO), cardiac index (CI), mean pulmonary arterial pressure (MPAP) and mean pulmonary capillary wedge pressure(MPCWP) were measured. Results: While CO, CI were increased, MPCWP was decreased compared to baseline in Group N (p

Özet

Amaç: Koroner arter bypass greftleme operasyonlarından sonra miyokardiyal hasarlanmanın nedeninin reperfüzyonun ilk dakikalarındaki serbest oksijen kökü aktivitesi olduğunu gösteren birçok kanıt olmakla beraber, temizleyiciajanların uygun kullanımı miyokardiyal iskemi periyodundan sonra kontraktil fonksiyonun iyileşmesini sağlar. Böyleceoksidanların neden olduğu hasarın inhibisyonunu inceleyen en popüler yöntemlerden birisi glutatyon düzenleyici ajanların kullanımı olmuştur. Glutatyan prekürsörü ajanlar içinde de N-asetilsistein (NAS) büyük olasılıkla en çok ilgi duyulanajandır. Bu çalışmada, kardiyopulmoner bypass ile ilişkili oksijen köklerinin neden olduğu iskemi-reperfüzyon hasarındaN-asetilsistein’in total antioksidan kapasite (TAK), lipid peroksidasyonu, glutatyon peroksidaz (GPO) ve myeloperoksidaz (MPO) ve kardiyak parametreler üzerine etkileri araştırılmıştır. Gereç ve Yöntem: Randomize, kontrollü klinik çalışma. Anestezi indüksiyonu sonrası Grup N’ye (n=15) 50 mg kg-1intravenöz (iv) NAS yüklemesi yapılıp, daha sonra 50 mg kg-1NAS (500 cc % 0.9 NaCl içinde) 12 saatte iv infüzyonlaverildi. Grup K’ye (n=15) anestezi indüksiyonu ile başlayan ilk 12 saat içinde 500 cc % 0.9 NaCl verildi. Her iki gruptada önceden belirlenen zamanlarda alınan kan örneklerinde, TAK, lipid peroksit, GPO ve MPO düzeylerine bakıldı.Kalp debisi (KD), kalp indeksi (Kİ), ortalama pulmoner arter basıncı (OPAB) ve ortalama pulmoner kapiller uç basıncı(OPKUB) ölçüldü.Bulgular: NAS verilen grupta, KD, Kİ değerlerinde istatistiksel anlamlı artış bulunurken, OPKUB’da 24. saatte anlamlıdüşüş gözlendi (p

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Cite This Article

ÇELEBİOĞLU, B., ÇINAR, D., KANBAK, M., UZUN, Ş., KILINÇ, K. (2022). Effects of N-acetylcysteine on ischemia reperfusion in coronary bypass surgery. Türk Anestezi ve Reanimasyon Dergisi, Cilt: 38 - Sayı: 2, 105–116. https://ajindex.com/articles/619906

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