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ORIGINAL ARTICLE   Free accessfree

Minerva Anestesiologica 2020 January;86(1):38-46

DOI: 10.23736/S0375-9393.19.13703-0


lingua: Inglese

Effect of intravenous, perioperative-administered lidocaine on serum levels of endocannabinoids and related N-acylethanolamines in children

Barbara KOŚCIELNIAK-MERAK 1, Ilona BATKO 2, Mariusz FLESZAR 3, 4, Magdalena KOCOT-KĘPSKA 5, Andrzej GAMIAN 3, Krzysztof KOBYLARZ 2, 6, Krystyna SZTEFKO 1, Przemysław J. TOMASIK 1

1 Department of Clinical Biochemistry, Pediatrics Institute, Jagiellonian University Medical College, Cracow, Poland; 2 Intensive Care Unit, University Children’s Hospital, Cracow, Poland; 3 Department of Medical Biochemistry, Wroclaw Medical University, Wroclaw, Poland; 4 Polish Center for Technology Development, Wroclaw, Poland; 5 Department of Pain Research and Treatment, Jagiellonian University Medical College, Cracow, Poland; 6 Department of Anesthesiology and Intensive Care, Jagiellonian University Medical College, Cracow, Poland

BACKGROUND: Endocannabinoids and N-acylethanolamines (NAEs) are compounds that play a significant role in nociception. The promising therapeutic opportunities in postoperative pain management are connected with intra-venous (i.v.) lidocaine administration as a part of multimodal analgesia. Therefore, we analyzed the influence of perioperative, i.v. lidocaine infusion in children on postoperative serum concentrations of endocannabinoids and NAEs.
METHODS: Forty-four children undergoing extensive spinal surgery were divided into two groups: the lidocaine group (LG; N.=23), anesthetized generally with lidocaine as a co-analgesic, and the non-lidocaine group (NLG; N.=21), anesthetized generally without lidocaine. We also recruited 23 healthy age- and gender-matched children to the control group. Blood samples were collected before surgery, immediately after surgery, at six hours, and following morning after surgery, while in healthy children we collected blood samples only once. The serum concentrations of endocannabinoids (anandamide [AEA] and 2-arachidonyl glycerol [2-AG]) and NAEs (palmitoylethanolamide [PEA] and oleoylethanolamide [OEA]) were quantified by ultra-high-performance liquid chromatography-mass spectrometry.
RESULTS: The concentrations of measured compounds were comparable in controls and in patients before surgery (all P>0.05). During the postoperative period, we found significantly higher AEA and lower 2-AG concentrations in the LG when compared to the NLG. The highest concentration of PEA was observed in LG patients six hours after the operation and, at that time it was significantly elevated when compared to the NLG (P=0.0003).
CONCLUSIONS: Perioperative, i.v. lidocaine administration influences postoperative serum concentrations of endocannabinoids and NAEs in children.

KEY WORDS: Pain, postoperative; Lidocaine; Pediatrics; Spine; Surgery

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