The patients after CABG and found that APACHE II

The observed 30-day mortality was 10.3 % which is
considered to be  higher than the average
mortality reported in previous studies 9.3%, 9.6% and
6% (Curiel-Balsera et al. 2013, Junior et al. 2015,
Exarchopoulos et al. 2015) respectively. this may be due to The higher rate
of postoperative cardiac and respiratory complications. twenty seven/103 (26.2%)
of the study group had cardiac complications while 16/103 patients (15.5%) had
respiratory complications.

A factor that was identified in this study as an
independent predictor of mortality after cardiac surgery, was the preoperative
platelet count. We found that the preoperative platelet count was higher in non
survivors {285.40+67.42 (103)} compared to survivors {232.32+64.41
(103)}. Unal et al. 2013 reported that the mean platelet
volume (MPV) reflecting platelet production rate and activation and the
platelet count were moderately correlated with adverse events after CABG
including ischemic vascular events, recurrent MI or death. The reported platelet count in their patients with adverse
events was 262 ± 66(103).

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The 
APACHE II score, calculated in the first day of ICU admission, was
identified as another independent predictor of postoperative mortality. It has a
good predictive power for the 30-day mortality after cardiac surgery (AUC:
0.868, p value <0.001). Supporting our results Chang et al. 2017 studied 483 patients after CABG and found that APACHE II score in the first ICU day was effective in prediction of mortality (AUC: 0.86, P value <0.001).  Other authors demonstrated that APACHE II score at ICU admission successfully predicted 30-day mortality in 150 cardiac surgery patients (AUC: 0.82, P value 0.001) (Exarchopoulos et al. 2015). The most important difference between APACHE II score and other scores is that it is estimated during the first 24 hours of ICU admission so it gives a snapshot of risk using data in the early time of admission but it still cannot guide clinical decision making reliably after the initial ICU period and prediction could be inaccurate as postoperative events unfold (Howitt et al. 2016). This can be solved if APACHE II score have the ability to predict the risk daily.