Comparative effect of deliberate hypotensive anesthesia using nitroglycerine vs. phentolamine on event related potentials and cognitive functions in patients undergoing septoplasty: a randomized controlled trial

Table 1 Demographics, pre-operative psychometric tests, and pre-operative P300 latency and amplitude in patients in Nitroglycerine and Phentolamine groups

		Nitroglycerine group (n = 40)	Phentolamine group (n = 40)	P- value
Age [Median (IQR)]		29 (25.25-35)	33.5 (27–38)	0.193
Sex	Males [N (%)]	20 (50%)	25 (62.5%)	0.26
Sex	Females [N (%)]	20 (50%)	15 (37.5%)	0.26
Years of education [Median (IQR)]		12 (9–16)	14 (12–14)	0.8
Pre-operative PALT [Median (IQR)]		13.5 (11.5-15.88)	14.5 (12.5–15.5)	0.232
Pre-operative BVRT [Median (IQR)]		15 (11.25-17)	14 (12–17)	0.706
Pre-operative P300 latency [Median (IQR)]		322.7 (288.52- 344.86)	321.86 (309.53- 346.76)	0.535
Pre-operative P300 amplitude [Median (IQR)]		4.47 (2.98–6.41)	3.7 (2.4–4.5)	0.128

Values are expressed as median (Q1-Q3), number (%)
PALT: Paired Associate Learning Test, BVRT: Benton Visual Retention Test
Mann-Whitney test was used for comparison between quantitative variables, Chi-squared test was used for comparison between categorical variables, P-value > 0.05 is considered in-significant

ISSN: 1471-2253