2000
DOI: 10.1053/rapm.2000.8933
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Pain on intramuscular injection of bupivacaine, ropivacaine, with and without dexamethasone

Abstract: The pain on intramuscular injection of bupivacaine is significantly more intense than with ropivacaine. The difference in the intensity of the pain on injection between bupivacaine and ropivacaine does not appear to be related to differences in pH. The results of our study have implications on the choice of the local anesthetic used in trigger point injections.

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Cited by 14 publications
(3 citation statements)
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“…0.25% had less injection pain and better efficacy. Krishnan et al 434 RCT 30 VAS I-A Comparing injection pain of bupivacaine, ropivacaine, bupivacaine with steroids, ropivacaine with steroids, and just needle insertion. Ropivacaine was less painful (alone) compared to bupivacaine or either local anesthetic in combination with steroids.…”
Section: Injection Therapymentioning
confidence: 99%
“…0.25% had less injection pain and better efficacy. Krishnan et al 434 RCT 30 VAS I-A Comparing injection pain of bupivacaine, ropivacaine, bupivacaine with steroids, ropivacaine with steroids, and just needle insertion. Ropivacaine was less painful (alone) compared to bupivacaine or either local anesthetic in combination with steroids.…”
Section: Injection Therapymentioning
confidence: 99%
“…31 Based on a study conducted on human volunteers, it has been determined that the pain experienced during intramuscular injection of bupivacaine 0.5% is significantly more intense compared with ropivacaine 0.5%. 32 Interestingly, the variance in pain intensity between these two LAs does not appear to be associated with differences in pH. 32 Lipid solubility of the LA has also been considered as a factor in the severity of pain on injection.…”
Section: Discussionmentioning
confidence: 99%
“… 32 Interestingly, the variance in pain intensity between these two LAs does not appear to be associated with differences in pH. 32 Lipid solubility of the LA has also been considered as a factor in the severity of pain on injection. 33 This factor provides justification for the observation that bupivacaine, being more liposoluble compared with ropivacaine, may cause greater pain during injection.…”
Section: Discussionmentioning
confidence: 99%