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background
backgroundLarge doses of local anesthetics can cause a wider range of sensory block, but the risk is also greater
.
The purpose of this trial is to compare the effects of different volumes of ropivacaine injected into the deep plane of the serratus anterior muscle in patients undergoing breast surgery
method
methodIn this randomized double-blind trial, 60 patients who underwent breast surgery were randomly divided into R10, R20, and R30 groups (n=20), and received 10, 20, and 30 mL 0.
5% ropivacaine in the deep-saw anterior plane, respectively Block
.
After 30 minutes of blocking, test skin sensation with cold stimulation along the mid-axillary line and along the cranial caudal direction
result
resultThe blocking skin ranges of R10, R20 and R30 groups were 3[3,4], 6[5,7] and 7[6,8] (Compared R10 group and R20 group, P<0.
001; R10 and R30 Comparison, P<0.
001; R20 vs.
R30, P=0.
005)
.
The area under the curve in the R10 group was significantly higher than that in the R20 and R30 groups (P=0.
in conclusion
in conclusionWhen 10, 20, and 30ml ropivacaine was used for deep serratus anterior plane block, the blocked skin increased as the volume increased
.
The analgesic effects of 20 and 30 ml are similar, better than 10 ml
Original source:
Original source:Kejian Shi, Ying Chen, Le Liu, et al.
Comparison of the effect of different volumes ropivacaine on deep serratus anterior plane block in patients undergoing breast surgery: a prospective randomized double-blinded trial in this message
