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A clinical comparison of continuous interscalene brachial plexus block with different basal infusion rates of 0.2% ropivacaine for shoulder surgery.

Yang CW, Jung SM, Kwon HU, Cho CK, Yi JW, Kim CW, Jung JK, An YM - Korean J Anesthesiol (2010)

Bottom Line: A continuous interscalene brachial plexus block is a highly effective postoperative analgesic modality after shoulder surgery.After surgery, the patients were divided randomly into two groups containing 32 each.During the first 48 h after surgery, groups R8 and R6 received a continuous infusion of 0.2% ropivacaine at 8 ml/h and 6 ml/h, respectively.

View Article: PubMed Central - PubMed

Affiliation: Department of Anesthesiology and Pain Medicine, School of Medicine, Konyang University, Daejeon, Korea.

ABSTRACT

Background: A continuous interscalene brachial plexus block is a highly effective postoperative analgesic modality after shoulder surgery. However, there is no consensus regarding the optimal basal infusion rate of ropivacaine for a continuous interscalene brachial plexus block. A prospective, double blind study was performed to compare two different basal rates of 0.2% ropivacaine for a continuous interscalene brachial plexus block after shoulder surgery.

Methods: Sixty-two patients receiving shoulder surgery under an interscalene brachial plexus block were included. The continuous interscalene brachial plexus block was performed using a modified lateral technique with 30 ml of 0.5% ropivacaine. Surgery was carried out under an interscalene brachial plexus block or general anesthesia. After surgery, the patients were divided randomly into two groups containing 32 each. During the first 48 h after surgery, groups R8 and R6 received a continuous infusion of 0.2% ropivacaine at 8 ml/h and 6 ml/h, respectively. The pain scores at rest and on movement, supplemental analgesia, motor block, adverse events and patient's satisfaction were recorded.

Results: The pain scores, supplemental analgesia, motor block, adverse events and patient's satisfaction were similar in the two groups.

Conclusions: When providing continuous interscalene brachial plexus block after shoulder surgery, 0.2% ropivacaine at a basal rate of 8 ml/h or 6 ml/h produces similar clinical efficacy. Therefore, decreasing the basal rate of CISB is more appropriate considering the toxicity of local anesthetics.

No MeSH data available.


Related in: MedlinePlus

Local anesthetic consumption. Group R8: continuous interscalene brachial plexus block with 0.2% ropivacaine at a rate of 8 ml/h, Group R6: continuous interscalene brachial plexus block with 0.2% ropivacaine at a rate of 6 ml/h. PACU: postanesthetic care unit.
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Figure 3: Local anesthetic consumption. Group R8: continuous interscalene brachial plexus block with 0.2% ropivacaine at a rate of 8 ml/h, Group R6: continuous interscalene brachial plexus block with 0.2% ropivacaine at a rate of 6 ml/h. PACU: postanesthetic care unit.

Mentions: Fig. 1 and 2 show the VAS scores at rest and on shoulder abduction . The pain scores in the PACU at 24 and 48 h after surgery were similar in the two groups. In addition, the proportion of patients requiring rescue diclofenac analgesia was also similar in the two groups (Table 4). There were no significant differences in sleep disturbances on postoperative days 0 and 1 (Table 4). The volume of the local anesthetic solution administered at 24 h and 48 h postoperatively was 204 ± 18 and 404 ± 31 ml in group R8 and 152 ± 11 and 307 ± 19 ml in group R6, respectively (Fig. 3).


A clinical comparison of continuous interscalene brachial plexus block with different basal infusion rates of 0.2% ropivacaine for shoulder surgery.

Yang CW, Jung SM, Kwon HU, Cho CK, Yi JW, Kim CW, Jung JK, An YM - Korean J Anesthesiol (2010)

Local anesthetic consumption. Group R8: continuous interscalene brachial plexus block with 0.2% ropivacaine at a rate of 8 ml/h, Group R6: continuous interscalene brachial plexus block with 0.2% ropivacaine at a rate of 6 ml/h. PACU: postanesthetic care unit.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2908223&req=5

Figure 3: Local anesthetic consumption. Group R8: continuous interscalene brachial plexus block with 0.2% ropivacaine at a rate of 8 ml/h, Group R6: continuous interscalene brachial plexus block with 0.2% ropivacaine at a rate of 6 ml/h. PACU: postanesthetic care unit.
Mentions: Fig. 1 and 2 show the VAS scores at rest and on shoulder abduction . The pain scores in the PACU at 24 and 48 h after surgery were similar in the two groups. In addition, the proportion of patients requiring rescue diclofenac analgesia was also similar in the two groups (Table 4). There were no significant differences in sleep disturbances on postoperative days 0 and 1 (Table 4). The volume of the local anesthetic solution administered at 24 h and 48 h postoperatively was 204 ± 18 and 404 ± 31 ml in group R8 and 152 ± 11 and 307 ± 19 ml in group R6, respectively (Fig. 3).

Bottom Line: A continuous interscalene brachial plexus block is a highly effective postoperative analgesic modality after shoulder surgery.After surgery, the patients were divided randomly into two groups containing 32 each.During the first 48 h after surgery, groups R8 and R6 received a continuous infusion of 0.2% ropivacaine at 8 ml/h and 6 ml/h, respectively.

View Article: PubMed Central - PubMed

Affiliation: Department of Anesthesiology and Pain Medicine, School of Medicine, Konyang University, Daejeon, Korea.

ABSTRACT

Background: A continuous interscalene brachial plexus block is a highly effective postoperative analgesic modality after shoulder surgery. However, there is no consensus regarding the optimal basal infusion rate of ropivacaine for a continuous interscalene brachial plexus block. A prospective, double blind study was performed to compare two different basal rates of 0.2% ropivacaine for a continuous interscalene brachial plexus block after shoulder surgery.

Methods: Sixty-two patients receiving shoulder surgery under an interscalene brachial plexus block were included. The continuous interscalene brachial plexus block was performed using a modified lateral technique with 30 ml of 0.5% ropivacaine. Surgery was carried out under an interscalene brachial plexus block or general anesthesia. After surgery, the patients were divided randomly into two groups containing 32 each. During the first 48 h after surgery, groups R8 and R6 received a continuous infusion of 0.2% ropivacaine at 8 ml/h and 6 ml/h, respectively. The pain scores at rest and on movement, supplemental analgesia, motor block, adverse events and patient's satisfaction were recorded.

Results: The pain scores, supplemental analgesia, motor block, adverse events and patient's satisfaction were similar in the two groups.

Conclusions: When providing continuous interscalene brachial plexus block after shoulder surgery, 0.2% ropivacaine at a basal rate of 8 ml/h or 6 ml/h produces similar clinical efficacy. Therefore, decreasing the basal rate of CISB is more appropriate considering the toxicity of local anesthetics.

No MeSH data available.


Related in: MedlinePlus