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- W2930045740 abstract "The local anesthetic bupivacaine is a common analgesic adjuvant medication used in combination with opioids in intrathecal drug delivery systems (IDDSs). While the acute effects of spinal bupivacaine injection on blood pressure (BP) have been studied, there is a dearth of data regarding long-term effects of continuous intrathecal bupivacaine infusion.A retrospective review of all noncancer pain patients receiving bupivacaine through IDDSs from January 2013 to November 2017 was performed. Blood pressure values before implantation, and after implant at the 1-week, 3-month, 6-month and 1-year time points are recorded as well as corresponding bupivacaine and opioid doses in the IDDS.Eighty-two patients were included in the study; median patient age was 64 years and intrathecal catheter tips were located predominantly in the lower thoracic spine. Significant decreases in systolic blood pressure (SBP) and mean arterial pressure (MAP) relative to baseline occurred in patients receiving chronic lower thoracic intrathecal bupivacaine delivery at 3, 6, and 12 months post-implant (-12.96 ± 18.21; p < 0.001 and - 6.38 ± 12.04; p < 0.001, respectively). The only significant decrease in DBP was observed at 1 year post-implant (-3.09 ± 11.76; p < 0.05). Similar decreases in BP values occurred in patients with or without hypertension.Long-term thoracic intrathecal infusion of bupivacaine likely exerts a lowering effect on BP, primarily because of a significant decrease in SBP. This effect is likely due to efferent sympathetic blockade by bupivacaine." @default.
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- W2930045740 date "2019-10-01" @default.
- W2930045740 modified "2023-09-28" @default.
- W2930045740 title "Effect of Long-Term Intrathecal Bupivacaine Infusion on Blood Pressure" @default.
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- W2930045740 doi "https://doi.org/10.1111/ner.12956" @default.
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