From: Surgical bleeding in patients undergoing posterior lumbar inter-body fusion surgery: a randomized clinical trial evaluating the effect of two mechanical ventilation mode types
Group
Need for blood pressure-lowering drugs
No need for blood pressure-lowering drugs
Sum
VCV
4(10.3%)
35(89.7%)
39(100%)
PCV
2(5.1%)
37(94.9%)
6(7.7%)
72(92.3%)
78(100%)
P value
0/22