Outcome measures:
There were 2 ICU mortalities in the RML group while there was none in the non-RML group, though the numbers were too small to achieve statistical significance. Acute kidney injury as defined by KDIGO criteria occurred in 22 patients out of 33 study patients (67% patients). There was a significantly higher incidence of AKI in the RML group (90%) than the non-RML group (25%). The cumulative occurrence of new postoperative dialysis was 12% in the study population and was observed only in the RML group (19% within the group). Apart from significantly higher troponin levels in the RML group (P-value 0.003); the other morbidity parameters like length of ventilation, inotrope duration, ICU and hospital length of stay didn’t have a statistically significant difference between the groups. (Table 2).
Figure 1 depicts the correlation between the change in creatinine (the difference between the peak creatinine and preoperative baseline) and CK levels. A significant correlation with a Pearson coefficient of 0.38 and P-value 0.0001 exists between the two.
Similarly, there was a significant correlation between the peak troponin levels and change in creatinine as outlined in figure 2