Low dose hyperbaric bupivicaine injected at T12–L1 provides adequate anesthesia with stable hemodynamics for elderly patients undergoing TURP

Available online 5 May 2011

Figures & data

Figure 1 Systolic blood pressure throughout the study period. All variables are means (error bars are standard deviations). ^∗P < 0.05 versus base line recording and ^†P < 0.05 versus Group I.

Figure 2 Diastolic blood pressure throughout the study period. All variables are means (error bars are standard deviations). ^∗P < 0.05 versus base line recording and ^†P < 0.05 versus Group I.

Figure 3 Heart rate throughout the study period. All variables are means (error bars are standard deviations). ^∗P < 0.05 versus base line recording and ^†P < 0.05 versus Group I.

Table 1 Demographic data. Data are presented as mean ± SD.

	Group I	Group II
	N = 25	N = 25
Age (yr)	75.04 ± 2.8	74.52 ± 2.52
Weight (kg)	76.8 ± 3.1	78.1 ± 3.4
Height (cm)	171 ± 6.2	169 ± 5.5
Surgical duration (min)	81.58 ± 3.86	81.1 ± 2.63
Prostate size (g)	42.23 ± 1.8	42 ± 1.7
Irrigation fluid (L)	21.8 ± 3.1	22.5 ± 1.1

Table 2 Study data. Data are median (interquartile range [range]), mean (SD), or ratio.

	Group I	Group II	P value
	N = 25	N = 25
Time to T10(minutes)	5.8 ± 1.3^*	2.6 ± 0.5	<0.0001
Peak sensory block level	T6 (T5-T8)^*	T4 (T3-T4)	<0.0001
Time to peak sensory block level (minutes)	14.56 ± 1.47^*	4.80 ± 1.15	<0.0001
Two segment regression at 2 hours	25/0^*	0/25	<0.0001
Bromage score 5 (minutes) after induction (II/III/IV)	2/12/11	1/15/9	0.46
Maximum motor block (n) (Bromage Score 4/3)	25/0	25/0	1.0
Bromage Score after 2 hours (Bromage III/IV)	25/0^*	0/25	<0.0001

* Indicates significance compared to group II.