Ontology highlight
ABSTRACT: Background
The mu-opioid agonist methadone is administered orally and used in opioid detoxification and in the treatment of moderate-to-severe pain. Acute oral methadone-use and -abuse have been associated with inflammatory and toxic central nervous system (CNS) damage in some cases and cognitive deficits can develop in long-term methadone users. In contrast, reports of intravenous methadone adverse effects are rare.Case presentation
Here, we report a patient who developed acute bilateral hearing loss, ataxia and paraparesis subsequently to intravenous methadone-abuse. While the patient gradually recovered from these deficits, widespread magnetic resonance imaging changes progressed and delayed-onset encephalopathy with signs of cortical dysfunction persisted. This was associated with changes in the composition of monocyte and natural killer cell subsets in the cerebrospinal fluid.Conclusion
This case suggests a potential bi-phasic primary toxic and secondary inflammatory CNS damage induced by intravenous methadone.
SUBMITTER: Repple J
PROVIDER: S-EPMC7898738 | biostudies-literature | 2021 Feb
REPOSITORIES: biostudies-literature
Repple Jonathan J Haessner Svea S Johnen Andreas A Landmeyer Nils C NC Schulte-Mecklenbeck Andreas A Pawlitzki Marc M Wiendl Heinz H Meyer Zu Hörste Gerd G
BMC neurology 20210222 1
<h4>Background</h4>The mu-opioid agonist methadone is administered orally and used in opioid detoxification and in the treatment of moderate-to-severe pain. Acute oral methadone-use and -abuse have been associated with inflammatory and toxic central nervous system (CNS) damage in some cases and cognitive deficits can develop in long-term methadone users. In contrast, reports of intravenous methadone adverse effects are rare.<h4>Case presentation</h4>Here, we report a patient who developed acute ...[more]