Atakan ATALAY, Özer KANDEMİR, Mustafa BÜYÜKATEŞ, S.Akın TURAN, Hilmi TOKMAKOĞLU

Kroner bypass cerrahisinde euroscore ve sts(the society of thoracic surgeons) risk skorlama yöntemlerinin karşılaştırılması

Bu çalışmada izole koroner bypass olgularında operatif mortaliteyi öngörmede EuroScore ve STS (The Society of Thoracic Surgeons) risk belirleme sistemlerinin klinik uygulanabilirliğinin karşılaştırılması amaçlandı. Gereç ve Yöntemler: Kasım 2002-Aralık 2005 tarihleri arasında opere edilen 148 izole koroner bypass olgusunun tüm risk faktörleri, EuroScore ve STS risk belirleme sistemlerine göre prospektif olarak kaydedildi. Öngörülen ve gerçekleşen mortalite oranları her sistem için karşılaştırıldı. Bulgular: Operatif mortalite, 3 hasta ile %2.0 olarak bulundu. EuroScore için beklenen mortalite %3.4±2.2 iken STS için bu oran %3.0±2.1 idi. Beklenen ve gerçekleşen mortalite oranları arasında fark bulunamadı. EuroScore için ROC (Receiver Operating Characteristic Curve) altında kalan alan 0.83, STS için 0.82 olarak hesaplandı (p>0.05). Sonuç: Her iki sistemde mortaliteyi öngörme kuvveti açısından, kliniğimiz hasta populasyonunda yeterli olarak bulunmuştur. STS’nin operatif mortalite yanında oluşabilecek morbidite hakkında da bilgi vermesi ek bir avantaj olarak görülebilir.

Comparison of euroscore and sts (the society of thoracic surgeons) risk scoring systems in isolated coronary artery bypass surgery

To compare the feasibility of the EuroScore and STS (The Society of Thoracic Surgeons) risk scoring systems for predicting the surgical mortality of isolated coronary artery bypass surgery patients. Materials and Methods: The risk scoring of 148 patients who were operated on between November 2002 and December 2005 was performed prospectively according to the EuroScore and STS risk scoring systems. The predicted and observed mortality rates according to each scoring system were compared. Results: Hospital mortality was 2% (3 patients). The predicted mortality rate according to EuroScore was 3.4±2.2%, whereas it was 3.0±2.1% for STS. There were no significant differences between predicted and observed mortality rates according to either scoring system. The area under the receiver operating characteristic curve was 0.83 for EuroScore and was 0.82 for STS (p>0.05). Conclusion: Both scoring systems were efficient for predicting mortality rates for our patient population. It is an advantage of STS that it also gives valuable information about morbidity.

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