Effect of protracted dexamethasone exposure and its withdrawal on rocuronium-induced neuromuscular blockade and sugammadex reversal: an ex vivo rat study

Seok Kyeong Oh, Byung Gun Lim, Sungsoo Park, Hong Seuk Yang, Junyong In, Yong Beom Kim, Hey ran Choi, Il Ok Lee

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Abstract

Studies have reported that protracted dexamethasone treatment induces resistance to nondepolarizing neuromuscular blocking agents (NMBAs) and the association with nicotinic acetylcholine receptors in the diaphragm of rats. Here, we investigated the effect of protracted dexamethasone administration on the sensitivity to rocuronium and the recovery profile when reversed by sugammadex; additionally, we observed the recovery period of pharmacodynamic change after withdrawal. Sprague-Dawley rats received daily intraperitoneal injections of dexamethasone or saline for 14 days. On days 1, 3, and 7 after the last dexamethasone treatment (Dexa1, Dexa3, and Dexa7, respectively) or 1 day after saline (control group), the phrenic nerve-hemidiaphragm preparation was dissected for assay. The dose-response curve of rocuronium in Dexa1 was shifted to the right compared to controls, but curves in Dexa3 and Dexa7 were not significantly different. Groups were not significantly different in attaining the train-of-four ratio ≥ 0.9, but the recovery index in Dexa7 was shorter than that in control and Dexa1. Recovery profiles (period of sugammadex reversal) were not correlated with resistance properties but rather with total administered drugs (binding capacity of NMBAs and sugammadex). Protracted dexamethasone exposure induced resistance to rocuronium but seemed to have no effect on sugammadex reversal in the rat diaphragm.

Original languageEnglish
Article number11268
JournalScientific reports
Volume9
Issue number1
DOIs
Publication statusPublished - 2019 Dec 1

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Neuromuscular Blockade
Dexamethasone
Neuromuscular Blocking Agents
Diaphragm
Phrenic Nerve
Nicotinic Receptors
Intraperitoneal Injections
Sprague Dawley Rats
Sugammadex
rocuronium
Control Groups
Therapeutics
Pharmaceutical Preparations

ASJC Scopus subject areas

  • General

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Effect of protracted dexamethasone exposure and its withdrawal on rocuronium-induced neuromuscular blockade and sugammadex reversal : an ex vivo rat study. / Oh, Seok Kyeong; Lim, Byung Gun; Park, Sungsoo; Yang, Hong Seuk; In, Junyong; Kim, Yong Beom; Choi, Hey ran; Lee, Il Ok.

In: Scientific reports, Vol. 9, No. 1, 11268, 01.12.2019.

Research output: Contribution to journalArticle

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