Table 3.

Comparison of the HR, MAP, BIS Between Two Groups

	Control group (n=20)	TAP block group (n=21)	p
MAP, mmHg
Pre-anesthesia	88±10	91±7	0.322
Pre-pneumoperitoneum	63±5	63±8	0.929
Post-pneumoperitoneum	78±12	75±11	0.543
Delta	15±9	13±9	0.475
HR, bpm
Pre-anesthesia	74±14	75±11	0.879
Pre-pneumoperitoneum	86±16	70±5	0.006 0.034
Post-pneumoperitoneum	90±22	74±9
Delta	4±17	4±9	0.977
BIS
Pre-anesthesia	93±12	92±10	0.889
Pre-pneumoperitoneum	45±9	46±10	0.876
Post-pneumoperitoneum	47±8	48±11	0.901
Delta	2±1	2±2	0.899

Notes: The pre-anesthesia value was before anesthesia; The pre-pneumoperitoneum value was the average value measured 3 and 1 min before CO₂ pneumoperitoneum; The post-pneumoperitoneum value was the average value measured 3 and 1 min after CO₂ pneumoperitoneum; The value of delta represents the difference between before and after pneumoperitoneum stimulation. Values are presented as mean±SD. P < 0.05 was considered statistically significant.

Abbreviation: MAP, bispectral index; HR, bispectral index; TAP, transverse abdominis plane; BIS, bispectral index.