Journals / Anadolu Kardiyoloji Dergisi / 2009 / Cilt: 9 - Sayı: 3

Kardiyak cerrahide levosimendan kullanımında zamanlama

Timing of levosimendan in cardiac surgery

Pages
223–230
Publication Date
2022-10-10
DOI
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AI Summary & Key Takeaways

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

As a result, case selection and timing should be performed well when using LS.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Levosimendan (LS) is a new inodilator agent that improves cardiac contractility by increasing the sensitivity of troponin C to calcium, which usage in cardiac surgery has been growing in the recent years.
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Key Findings & Data:Patients were divided into 3 groups according to timing of LS.
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Conclusion & Impact:As a result, case selection and timing should be performed well when using LS.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Levosimendan (LS) is a new inodilator agent that improves cardiac contractility by increasing the sensitivity of troponin C to calcium, which usage in cardiac surgery has been growing in the recent years. We aimed to determine the best timing of the administration of LS in high-risk patients who underwent cardiovascular surgery. Methods: Fifteen patients were evaluated retrospectively who have left ventricular dysfunction, underwent open-heart surgery and were applied LS in different phases of operation. Patients were divided into 3 groups according to timing of LS. Levosimendan infusion (0. 1 µg-1kg-1min) was applied after the induction of anaesthesia (n=5) (Group 1), during the pump removal period (n=5) (Group 2) and in postoperative period (n=5) (Group 3). Demographic data, operative characteristics, mean arterial pressure (MAP), mean pulmonary arterial pressure (MPAP), pulmonary wedge capillary pressure (PWCP), cardiac index (CI), inotropic agent consumption, postoperative urine output, lactate levels of groups were compared between before and after LS treatment. Data were evaluated by Fisher exact, Kruskal-Wallis, Mann-Whitney U and Wilcoxon rank tests.Results: In all patients, urine output was satisfactory 24 hours after LS application. There was a significant increase in CI of all 3 groups (p=0.04). Also, there was a significant decrease in PCWP of all 3 groups before and after LS (p=0.04). There was a significant decrease in MPAP in Group 2 and 3 (p=0.04). Twenty- four hours after LS application, whereas all inotropic agents could be stopped in Group 1 and 2, in Group 3 inotropic infusion (dopamine [10 µg-1kg-1min (5-17.5)], dobutamine [15 µg-1kg-1min (5-20)] and adrenaline [0.4 µg-1kg-1min (0.15–0.65)]) couldn’t be stopped (p= 0.007). During postoperative period, in Groups 1 and 2 one case from each required intraaortic balloon pump, while in Group 3 four patients were applied intraaortic balloon pump (p=0.08). Conclusion: According to our experience, LS is effective in high-risk cases during cardiac surgery, especially during the intra-operative and pump removal periods; however, no successful outcomes were observed during the post-operative period. As a result, case selection and timing should be performed well when using LS.

Özet

Amaç: Levosimendan (LS), troponin C’nin kalsiyuma duyarlılığını artırarak kardiyak kontraktiliteyi güçlendiren yeni bir inodilatatör ajandır ve son zamanlarda kardiyak cerrahide kullanımı artmaktadır. Bu çalışmada kardiyovasküler cerrahiye giden yüksek riskli hastalarda LS kullanımında en uygun zamanlamanın tespit edilmesi hedeflenmiştir. Yöntemler: Kısıtlı sol ventrikül fonksiyonuna sahip, açık kalp cerrahisi geçiren ve operasyonun çeşitli evrelerinde LS uygulanan toplam 15 hasta retrospektif olarak incelendi. Hastalar LS kullanım zamanlarına göre 3 gruba ayrıldılar. Anestezi indüksiyonundan sonra (n=5) (Grup1), pompa çıkışında (n=5) (Grup 2) ve postoperatif periyodda (n=5) (Grup 3) LS infüzyonu (0.1 µg-1kg-1dak) uygulanmıştır. Grupların demografik verileri, operatif karakteristikleri, ortalama arter basıncı (OAB), ortalama pulmoner arter basıncı (OPAB), pulmoner kapiller uç basıncı (PKUB), kardiyak indeksi (Kİ), inotropik ajan tüketimi, postoperatif idrar çıkışı, laktat düzeyleri LS öncesi ve LS sonrası dönemde karşılaştırıldı. Veriler Fisher exact, Kruskal-Wallis, Mann-Whitney U and Wilcoxon rank tests ile değerlendirildi. Bulgular: Tüm hastalarda LS uygulanmasından 24 saat sonra idrar çıkışı yeterliydi. Levosimendan öncesi ve LS sonrası kardiyak indekslerde her üç grupta da anlamlı artış oldu (p=0.04). Levosimendan öncesi ve LS sonrası PKUB’da her üç grupta da anlamlı azalma saptandı (p=0.04). Pulmoner arter basıncında Grup 2 ve 3’de anlamlı düşme saptandı (p=0.04). Levosimendan uygulamasından 24 saat sonra Grup 1 ve 2’de tüm inotropik ajanlar kesilebilmişken, Grup 3’de inotrop infüzyonu (dopamin [10 µg-1kg-1dak (5-17.5)], dobutamin [15 µg-1kg-1dak (5-20)] ve adrenalin [0.4 µg-11kg-1dak (0.15–0.65)]) kesilememiştir (p= 0.007). Postoperatif dönemde Grup 1 ve 2’de 1’er hastaya intraaortik balon uygulanmışken Grup 3’de 4 hastada intraaortik balon uygulanmıştır (p=0.08). Sonuç: Deneyimlerimiz LS’nın kardiyak cerrahide, yüksek riskli olgularda özellikle intraoperatif ve pompa çıkışı kullanımlarının etkin olduğu, postoperatif kullanımlarında ise çok başarılı sonuçlar alınamadığı yönündedir. Bu yüzden LS kullanımında olgu seçimi ve zamanlama iyi yapılmalıdır.

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Cite This Article

AKSUN, M., ÖZTÜRK, T., ÖZGÜRBÜZ, U., ŞENCAN, A., ARAN, G., ADANIR, T., GÜRBÜZ, A., YETKİN, U., KARAHAN, N. (2022). Kardiyak cerrahide levosimendan kullanımında zamanlama. Anadolu Kardiyoloji Dergisi, Cilt: 9 - Sayı: 3, 223–230. https://ajindex.com/articles/436867

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