Comparison of Spinal Block Levels between Laboring and Nonlaboring Parturients Using Combined Spinal Epidural Technique with Intrathecal Plain Bupivacaine
Table 2
Block characteristics 20 minutes after intrathecal injection.
Block characteristics
Group NL
Group L
value
()
()
Median sensory blockade level to cold
T6 (T4–T6)a
T5 (T4–T6)a
0.46
Time to achieve cold blockade level (minutes)
10.9 (2.1)b
10.7 (2.3)b
0.83
Median sensory blockade level to pinprick
T7 (T6–T8)a
T7 (T7-T8)a
0.35
Time to achieve pinprick blockade level (minutes)
11.2 (2.2)b
10.5 (2.6)b
0.36
Motor block grade
3 (3-4)a
3 (3-4)a
0.85
Time to achieve motor block (minutes)
8.0 (2.5)b
7.7 (2.6)b
0.42
Phenylephrine (μg)
0 (0–100)a
0 (0-0)a
>0.99
Maximal decrease of SBP (mmHg)
23.2 (13.2)b
34.6 (9.2)b
0.03
Hypotension
8 (32%)c
5 (20%)c
0.52
Shivering
5 (20%)c
12 (48%)c
0.07
Nausea and vomiting
3 (12%)c
1 (4%)c
0.61
a
Results are expressed as the median (interquartile range); bresults are expressed as the mean (SD); cresults are expressed as the number of parturients (percent).