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A Randomized Comparison of Plasma Levobupivacaine Concentrations Following Thoracic Epidural Analgesia and Subpleural Paravertebral Analgesia in Open Thoracic Surgery

J. Matek, S. Cernohorsky, S. Trca, Z. Krska, D. Hoskovec, J. Bruthans, M. Sima, P. Michalek,

. 2020 ; 9 (5) : . [pub] 20200509

Jazyk angličtina Země Švýcarsko

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc20019215

Grantová podpora
MZCZ-DRO-VFN64165 Ministerstvo Zdravotnictví Ceské Republiky

BACKGROUND: The aim of this study was to compare plasma levobupivacaine concentrations in thoracic epidural and subpleural paravertebral analgesia. METHODS: Forty-four patients indicated for open lung resection had an epidural catheter inserted preoperatively or a subpleural catheter surgically. A bolus of 0.25% levobupivacaine at a dosage of 0.5 mg × kg-1 was given after the thoracotomy closure. Plasma levobupivacaine level at 30 min was the primary outcome. Pharmacokinetic modeling was performed subsequently. Secondary outcomes included the quality of analgesia, complications, and patients'mobility. RESULTS: Plasma concentrations were similar 30 min after application-0.389 mg × L-1 in the epidural and 0.318 mg × L-1 in the subpleural group (p = 0.33) and lower in the subpleural group at 120 min (p = 0.03). The areas under the curve but not maximum concentrations were lower in the subpleural group. The time to reach maximum plasma level was similar in both groups-27.6 vs. 24.2 min. No clinical symptoms of local anesthetic toxicity were recorded. CONCLUSIONS: Levobupivacaine systemic concentrations were low in both groups without the symptoms of toxicity. This dosage should be safe for postoperative analgesia after thoracotomy.

Citace poskytuje Crossref.org

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$a BACKGROUND: The aim of this study was to compare plasma levobupivacaine concentrations in thoracic epidural and subpleural paravertebral analgesia. METHODS: Forty-four patients indicated for open lung resection had an epidural catheter inserted preoperatively or a subpleural catheter surgically. A bolus of 0.25% levobupivacaine at a dosage of 0.5 mg × kg-1 was given after the thoracotomy closure. Plasma levobupivacaine level at 30 min was the primary outcome. Pharmacokinetic modeling was performed subsequently. Secondary outcomes included the quality of analgesia, complications, and patients'mobility. RESULTS: Plasma concentrations were similar 30 min after application-0.389 mg × L-1 in the epidural and 0.318 mg × L-1 in the subpleural group (p = 0.33) and lower in the subpleural group at 120 min (p = 0.03). The areas under the curve but not maximum concentrations were lower in the subpleural group. The time to reach maximum plasma level was similar in both groups-27.6 vs. 24.2 min. No clinical symptoms of local anesthetic toxicity were recorded. CONCLUSIONS: Levobupivacaine systemic concentrations were low in both groups without the symptoms of toxicity. This dosage should be safe for postoperative analgesia after thoracotomy.
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$a Trca, Stanislav $u 1st Department of Surgery-Department of Abdominal, Thoracic Surgery and Traumatology, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 128 00 Prague, Czech Republic.
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$a Krska, Zdenek $u 1st Department of Surgery-Department of Abdominal, Thoracic Surgery and Traumatology, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 128 00 Prague, Czech Republic.
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$a Hoskovec, David $u 1st Department of Surgery-Department of Abdominal, Thoracic Surgery and Traumatology, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 128 00 Prague, Czech Republic.
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$a Bruthans, Jan $u Department of Anaesthesia and Intensive Care, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 128 00 Prague, Czech Republic.
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$a Sima, Martin $u Institute of Pharmacology, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 128 00 Prague, Czech Republic.
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$a Michalek, Pavel $u Department of Anaesthesia and Intensive Care, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, 128 00 Prague, Czech Republic. Department of Anaesthesia, Antrim Area Hospital, Antrim BT41 2RL, UK.
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