Table 4: Baseline, Intraoperative and Outcome Data in Patients who Did vs Patients who Did Not Develop Cognitive Dysfunction

Cognitive Dysfunction p
Yes (n=18) No (n=51)
Age 76.65 ± 8.65 73.63 ± 14.44 NS
Preoperative Ht 33.32 ± 4.44 36.76 ± 4.60 0.009
Preoperative Hb 10.73 ± 1.56 12.20 ± 1.69 0.002
Postoperative Ht 33.67 ± 3.22 32.57 ± 3.51 NS
Postoperative Hb 10.26 ± 1.15 10.82 ± 1.44 NS
Preoperative SpO2 94.82 ± 2.90 96.63 ± 1.92 0.004
Baseline L 53.71 ± 10.69 62.17 ± 9.21 0.002
Baseline R 53.06 ±12.10 60.46 ± 8.45 0.007
rSO2 L at 20 min 55.35 ± 9.10 65.31 ± 7.60 <0.001
rSO2 R at 20 min 55.00 ± 9.20 64.27 ± 7.54 <0.001
Min rSO2 L 42.35 ± 6.40 54.31 ± 8.41 <0.001
Min rSO2 R 42.00 ± 7.80 53.10 ± 8.70 <0.001
rSO2 L end 56.76 ± 9.86 63.75 ± 8.35 0.006
rSO2 R end 56.29 ± 8.91 62.73 ± 9.24 0.014
rSO2 L recovery 57.53 ± 12.10 66.56 ± 9.14 0.002
rSO2 R recovery 56.18 ± 12.63 65.79 ± 9.67 0.002
Days in hospital 9.41 ± 3.18 9.75 ± 4.43 NS
Agitation 0.12 ± 0.33 0.13 ± 0.40 NS

Comparisons using student’s t test.P<0.05 was considered significant for all comparisons, NS means Not Significant.