Table 2. Frequency of Acceptable Arterial Waveform in First, Second and Third Postoperative Days ^a.

Variable	Heparinized Saline Group (n = 50)	Normal Saline Group (n = 50)	P Value
Acceptable arterial waveform in 1st postop Day	39 (78)	36 (72)	0.774
Acceptable arterial waveform in 2nd postop Day	40 (80)	39 (78)	0.793
Acceptable arterial waveform in 3rd postop Day	33 (66)	32 (65.3)	0.887

^a Data are presented as No. (%).