Zusammenfassung
Anästhesisten werden durch den steigenden Einsatz von Phytopharmaka vermehrt mit diesen Medikamenten konfrontiert. Im vorliegenden Fallbericht wird am Beispiel von Silexan demonstriert, welche möglichen Probleme entstehen können. Silexan ist ein pflanzliches Anxiolytikum, das zur Therapie von Unruhezuständen und ängstlicher Verstimmung eingesetzt wird. Aufgrund seines potenziellen Wirkmechanismus über γ-Aminobuttersäure- (GABA-)Rezeptoren ist eine Interaktion mit Narkosemedikamenten möglich. Es wird der Fall einer 18-jährigen Frau beschrieben, die sich während der dauerhaften Einnahme von Silexan einer Operation in Vollnarkose unterzog. Dabei konnte die gewünschte Narkosetiefe, nach erfolgloser i.v.-Hypnoseinduktion mit Propofol und Thiopental, erst durch Anwendung einer inhalativen Sevofluraneinleitung erreicht werden. Mögliche Erklärungswege und Gründe für die inhalative Einleitung als mögliche Alternative werden diskutiert.
Abstract
The increased use of phytotherapeutic drugs means that anesthetists are more often confronted with these drugs. In this case report possible problems which can occur are demonstrated exemplified by silexan. Silexan is a phytotherapeutic anxiolytic which is used in anxiety disorders. Because of its potential mechanism of action via the neurotransmitter gamma-aminobutyric acid (GABA) receptors interactions with narcotic drugs are possible. The case of an 18-year-old girl who underwent an operation under general anesthesia while taking silexan as long-term medication is presented. The desired depth of narcosis could only be reached by inhalative induction with sevoflurane after unsuccessful induction attempts using intravenous propofol and thiopental. Possible explanations for this route and inhalative induction as a possible alternative are discussed.
Literatur
http://www.blog.aromapraxis.de/2010/07/15/leserbrief-wirkmechanismus-von-lavendelol-praparat-lasea/
http://www.bah-bonn.de/index.php?id=177
http://www.lasea.de
http://www.shop-apotheke.com/pdf/productPDFs/pdfs_5/5489603p.pdf
Aoshima H, Hamamoto K (1999) Potentiation of GABAA receptors expressed in Xenopus oocytes by perfume and phytoncid. Biosci Biotechnol Biochem 63:743–748
Del Arco A, Segovia G, Garrido P et al (2007) Stress, prefrontal cortex and environmental enrichment: studies on dopamine and acetylcholine release and working memory performance in rats. Behav Brain Res 176:267–273
Eckle VS, Hucklenbruch C, Todorovic SM (2009) What do we know about anesthetic mechanisms?: hypnosis, unresponsiveness to surgical incision and amnesia. Anaesthesist 58:1144–1149
Elisabetsky E, Marschner J, Souza DO (1995) Effects of linalool on glutamatergic system in the rat cerebral cortex. Neurochem Res 20:461–465
Gerak LR (2009) Selective changes in sensitivity to benzodiazepines, and not other positive GABA (A) modulators, in rats receiving flunitrazepam chronically. Psychopharmacology 204:667–677
Hall RC, Zisook S (1981) Paradoxical reactions to benzodiazepines. Br J Clin Pharmacol 11(Suppl 1):99-104
Herring B, Mcmillan K, Pike C et al (2010) Etomidate and propofol inhibit the neurotransmitter release machinery at different sites. J Physiol 589:1103–1115
Huang L, Abuhamdah S, Howes MJ et al (2008) Pharmacological profile of essential oils derived from Lavandula angustifolia and Melissa officinalis with anti-agitation properties: focus on ligand-gated channels. J Pharm Pharmacol 60:1515–1522
Kasper S, Gastpar M, Muller WE et al (2010) Efficacy and safety of silexan, a new, orally administered lavender oil preparation, in subthreshold anxiety disorder – evidence from clinical trials. Wien Med Wochenschr 160:547–556
Kober M, Pohl K, Efferth T (2008) Molecular mechanisms underlying St. John’s wort drug interactions. Curr Drug Metab 9:1027–1037
Krasowski MD, Koltchine VV, Rick CE et al (1998) Propofol and other intravenous anesthetics have sites of action on the gamma-aminobutyric acid type A receptor distinct from that for isoflurane. Mol Pharmacol 53:530–538
Liu H, Dai T, Yao S (2006) Effect of thiopental sodium on N-methyl-D-aspartate-gated currents. Can J Anaesth 53:442–448
Lukatch HS, Kiddoo CE, Maciver MB (2005) Anesthetic-induced burst suppression EEG activity requires glutamate-mediated excitatory synaptic transmission. Cereb Cortex 15:1322–1331
Mckenzie WS, Rosenberg M (2010) Paradoxical reaction following administration of a benzodiazepine. J Oral Maxillofac Surg 68:3034–3036
Mihic SJ, Ye Q, Wick MJ et al (1997) Sites of alcohol and volatile anaesthetic action on GABA (A) and glycine receptors. Nature 389:385–389
Stroumpos C, Manolaraki M, Paspatis GA (2010) Remifentanil, a different opioid: potential clinical applications and safety aspects. Expert Opin Drug Saf 9:355–364
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Decker, S., Polarz, H. Silexan und Narkose. Anaesthesist 60, 946–949 (2011). https://doi.org/10.1007/s00101-011-1916-x
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DOI: https://doi.org/10.1007/s00101-011-1916-x