Comparison of the Efficacy of SAPS II and MPM II Scoring Systems in Intensive Care Unit Mortality

Objectives: We aimed to investigate the predicting performances of Simplified Acute Physiology Score (SAPS) II and Mortality Probability Model (MPM) II0 and MPM II24 on determining the mortality rates of intensive care unit (ICU) patients. Patients and Methods: Consecutive 100 patients admitted to the ICU were investigated retrospectively, and 92 of them were included in the study. Initial SAPS and MPM analysis and calculations for mortality prediction percentages were performed with auxiliary software package. Transfer data, total ICU and hospital stay and duration of mechanical ventilation were calculated. Results: Most of the patients (53%) were transferred to the ICU from the emergency department. Twenty two patients were transferred to another department and 15 patients were discharged. The number of patients died were 50, the mortality rate was determined as 54%. The ICU stay and duration of mechanical ventilation of patients who died were found as statistically significant (p=0.007, p=alt;0.0001, respectively). Conclusion: Although SAPS II, MPM II0 and MPM II24 analysis are related to mortality, they have no effect on predicting the mortality independent from logistic regression analysis. The predicted mortality rates were found related with those determined by logistic regression analysis. Duration of mechanical ventilation and ICU stay and mechanical ventilation duration above 24 hours affect the predicted mortality, independently. Amac: Yogun bakim unitesi (YBU) hastalarinda mortalite orani ongorusunun belirlenmesinde Simplified Acute Physiology Score (SAPS) II ile Mortality Probability Model (MPM) II0 ve MPM II24 skorlama sistemlerinin etkinligini arastirmayi amacladik. Hastalar ve Yontemler: Universite hastanemiz YBUa#39;sune kabul edilen ardisik 100 hastanin verileri geriye donuk olarak incelendi, 92 hasta calismaya alindi. Hastalarin SAPS II ve MPM baslangic verilerinin degerlendirilmesi ve mortalite ongoru oranlarinin hesaplanmasi yardimci yazilim ile yapildi. Hastalarin YBUa#39;ye geldigi yer, YBU ve hastanede kalis suresi ve mekanik ventilasyon sureleri hesaplandi. Bulgular: Yogun bakim unitesine en cok hasta, hastanemiz acil servisinden (%53) kabul edilmisti. Yirmi yedi hasta baska bir servise devir, 15 hasta ise taburcu edildi. Olen hastalarin sayisi 50, mortalite orani ise %54 olarak saptandi. Yogun bakim unitesinde kalis ve mekanik ventilasyon sureleri olen hastalarda istatistiksel olarak anlamli bulundu (sirasiyla p=0.007, p=alt;0.0001). Sonuc: SAPS II, MPM II0 ve MPM II24 analizlerinin tumunun mortalite ile iliskisi olmakla beraber lojistik regresyon analizinden bagimsiz olarak mortaliteyi ongormede etkileri yoktur. Ongorulmus olum oranlari lojistik regresyon analizi ile gozlenen olum oranlariyla iliskili bulunmustur. Mekanik ventilasyon ve YBUa#39;de kalis sureleri ile 24 saatten uzun suren mekanik ventilasyon suresi ongorulen mortaliteyi bagimsiz olarak etkilemektedir.