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Chronological changes in plasma levobupivacaine concentrations after bilateral modified thoracoabdominal nerve block through perichondrial approach
| Title: | Chronological changes in plasma levobupivacaine concentrations after bilateral modified thoracoabdominal nerve block through perichondrial approach |
| Authors: | Aikawa, Katsuhiro Browse this author | | Uchinami, Yuka Browse this author | | Morimoto, Yuji Browse this author →KAKEN DB |
| Keywords: | Modified thoracoabdominal nerves block through perichondrial approach (M-TAPA) | | Plasma levobupivacaine concentration | | Epinephrine |
| Issue Date: | 6-Jun-2023 |
| Publisher: | Springer |
| Journal Title: | Journal of anesthesia |
| Volume: | 37 |
| Issue: | 4 |
| Start Page: | 641 |
| End Page: | 644 |
| Publisher DOI: | 10.1007/s00540-023-03209-0 |
| Abstract: | The local anesthetic (LA) systemic toxicity of trunk blocks is a major concern. Recently, modified thoracoabdominal nerve block through perichondrial approach (M-TAPA) has attracted attention; however, plasma LA level is unknown. We tested whether the peak plasma LA concentration following M-TAPA, using 25 mL of 0.25% levobupivacaine mixed with epinephrine on each side, would be below the toxic level (2.6 mu g/mL). We recruited 10 patients undergoing abdominal surgery with planned M-TAPA between November 2021 and February 2022. In all patients, 25 mL of 0.25% levobupivacaine mixed with 1:200,000 epinephrine was administered on each side. Blood samples were obtained at 10, 20, 30, 45, 60, and 120 min after the block. The highest individual peak and the mean peak plasma LA concentrations were 1.03 and 0.73 mu g/mL, respectively. We could not capture the peak in five patients; however, the highest concentrations in all patients were significantly lower than the toxic level. A negative correlation between the peak level and body weight was observed. Our results indicated that the plasma LA concentration following M-TAPA using total of 50 mL of 0.25% levobupivacaine with epinephrine remains below the toxic level. Further research is required due to the small sample size of this study.Trial registry number: UMIN000045406. |
| Rights: | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s00540-023-03209-0 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/92752 |
| Appears in Collections: | 北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 相川 勝洋
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