Development of bronchoconstriction after administration of muscle relaxants in rabbits with normal or hyperreactive airways

F. Peták, Z. Hantos, A. Adamicza, Hristifor Gálity, Walid Habre

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Neuromuscular blocking drugs can induce intraoperative bronchospasm. We characterized the magnitude and the temporal profile of the constriction in normal or in hyperresponsive airways after injections of neuromuscular blocking drugs. Respiratory system impedance (Zrs) was measured continuously over a 90-s apneic period in naïve and rabbits sensitized to allergens by ovalbumin. Fifteen s after the start of Zrs recordings, succinylcholine, mivacurium, or pipecuronium was administered in random order. Zrs was then also recorded during the administration of increasing doses of exogenous histamine. To monitor the changes in the airway mechanics during these maneuvers, Zrs was averaged for 2-s time windows, and the airway resistance (Raw) was determined by model fitting. The increases in Raw were significantly larger in the sensitized rabbits than in the naïve animals. The largest increases in Raw and the maximum rate of change in Raw were obtained for succinylcholine (146% ± 29% and 0.80 ± 0.12 cm H2O/L, respectively) and mivacurium (80% ± 25% and 0.71 ± 0.13 cm H2O/L) and the smallest were obtained for pipecuronium (40% ± 12% and 0.41 ± 0.04 cm H2O/L). Allergic sensitization leads to severe and rapidly developing bronchospasm after administrations of mivacurium or succinylcholine. These deleterious side effects should be considered when succinylcholine or mivacurium is administered in the presence of bronchial hyperreactivity.

Original languageEnglish
Pages (from-to)103-109
Number of pages7
JournalAnesthesia and Analgesia
Volume103
Issue number1
DOIs
Publication statusPublished - Jul 2006

Fingerprint

Succinylcholine
Bronchoconstriction
Pipecuronium
Rabbits
Muscles
Bronchial Spasm
Bronchial Hyperreactivity
Airway Resistance
Ovalbumin
Mechanics
Electric Impedance
Constriction
Pharmaceutical Preparations
Respiratory System
Allergens
Histamine
Injections
mivacurium

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

Cite this

Development of bronchoconstriction after administration of muscle relaxants in rabbits with normal or hyperreactive airways. / Peták, F.; Hantos, Z.; Adamicza, A.; Gálity, Hristifor; Habre, Walid.

In: Anesthesia and Analgesia, Vol. 103, No. 1, 07.2006, p. 103-109.

Research output: Contribution to journalArticle

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