Table 2.

TCD measurements of the two studied groups at different timings

Variables	Group M (n = 30)	Group L (n = 30)	P-value
MV (cm/s)
Baseline	68.1 ± 7.09	66.1 ± 6.52	0.272
After 1 hour	66.4 ± 6.92	63.3 ± 5.98	0.060
After 6 hours	67.1 ± 7.05	64.3 ± 6.78	0.117
DIAS (cm/s)
Baseline	48.4 ± 5.42	46.8 ± 3.52	0.192
After 1 hour	46.9 ± 8.50	43.5 ± 7.50	0.108
After 6 hours	47.7 ± 6.32	44.5 ± 6.81	0.065
PI
Baseline	0.77 ± 0.04	0.77 ± 0.05	0.712
After 1 hour	0.66 ± 0.05	0.67 ± 0.05	0.535
After 6 hours	0.66 ± 0.05	0.67 ± 0.06	0.306
CPP (mmHg)
Baseline	103.3 ± 12.7	103.6 ± 12.6	0.856
After 1 hour	87.8 ± 10.6	86.2 ± 13.02	0.619
After 6 hours	89.8 ± 10.9	83.7 ± 14.6	0.074
MCA velocity (cm/s)
Baseline	3.54 ± 0.44	3.62 ± 0.44	0.489
After 1 hour	3.47 ± 0.38	3.51 ± 0.35	0.657
After 6 hours	3.42 ± 0.30	3.54 ± 0.36	0.182

Group M = Magnesium sulfate group, Group L = Labetalol group, n = Total number of subjects in each group, MV = Mean Velocity, DIAS = Mean End Diastolic Velocity, PI = Pulsatility Index, CPP = Cerebral Perfusion Pressure, MCA Velocity = Middle Cerebral Artery Velocity.

Data were expressed as mean ± SD.

Independent samples student’s t-test.

P < 0.05 is significant.