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Cardiopulmonary effects of the novel neuromuscular blocking drug GW280430A (AV430A) in dogs.

Publication ,  Journal Article
Heerdt, PM; Kang, R; The', A; Hashim, M; Mook, RJ; Savarese, JJ
Published in: Anesthesiology
April 2004

BACKGROUND: This investigation determined the cardiopulmonary side effects of a novel nondepolarizing neuromuscular blocking drug with an ultrashort duration of action in anesthetized male beagles. METHODS: The ED95 for GW280430A was first determined in four animals. These data were then used to guide bolus dosing in multiples of ED95 in six dogs instrumented for hemodynamic measurements as well as inspiratory pressure and pulmonary compliance. Cardiopulmonary data were compared before and after the conclusion of a 60- to 90-min GW280430A infusion and in response to subsequent incremental bolus dosing starting with 3.125 x ED95. An adverse response was regarded as an alteration of 10% or greater in any variable. Arterial blood was obtained for histamine analysis before and 1 min after each dose. RESULTS: The ED95 of GW280430A was 0.064 +/- 0.01 mg/kg, and stable neuromuscular blockade was maintained with infusion of 0.012 +/- 0.002 mg.kg(-1).min(-1). With the exception of a late 14% increase in heart rate, there were no cardiopulmonary changes during infusion. Bolus dosing produced no cardiopulmonary change until a decrease in mean arterial pressure was elicited in four of six dogs at 25 x ED95. This response was modest, transient, and associated with a concomitant increase in plasma histamine concentration. There were no accompanying changes indicative of direct myocardial depression, pulmonary vasoconstriction, or bronchospasm. CONCLUSIONS: These data indicate that GW280430 does not produce demonstrable cardiovascular effects in the anesthetized dog until doses far in excess of the ED95 are administered as a bolus.

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Published In

Anesthesiology

DOI

ISSN

0003-3022

Publication Date

April 2004

Volume

100

Issue

4

Start / End Page

846 / 851

Location

United States

Related Subject Headings

  • Time Factors
  • Species Specificity
  • Neuromuscular Nondepolarizing Agents
  • Male
  • Lung
  • Isoquinolines
  • Histamine
  • Heart Rate
  • Dose-Response Relationship, Drug
  • Dogs
 

Citation

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Chicago
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Heerdt, P. M., Kang, R., The’, A., Hashim, M., Mook, R. J., & Savarese, J. J. (2004). Cardiopulmonary effects of the novel neuromuscular blocking drug GW280430A (AV430A) in dogs. Anesthesiology, 100(4), 846–851. https://doi.org/10.1097/00000542-200404000-00014
Heerdt, Paul M., Richard Kang, Andrew The’, Mir Hashim, Robert J. Mook, and John J. Savarese. “Cardiopulmonary effects of the novel neuromuscular blocking drug GW280430A (AV430A) in dogs.Anesthesiology 100, no. 4 (April 2004): 846–51. https://doi.org/10.1097/00000542-200404000-00014.
Heerdt PM, Kang R, The’ A, Hashim M, Mook RJ, Savarese JJ. Cardiopulmonary effects of the novel neuromuscular blocking drug GW280430A (AV430A) in dogs. Anesthesiology. 2004 Apr;100(4):846–51.
Heerdt, Paul M., et al. “Cardiopulmonary effects of the novel neuromuscular blocking drug GW280430A (AV430A) in dogs.Anesthesiology, vol. 100, no. 4, Apr. 2004, pp. 846–51. Pubmed, doi:10.1097/00000542-200404000-00014.
Heerdt PM, Kang R, The’ A, Hashim M, Mook RJ, Savarese JJ. Cardiopulmonary effects of the novel neuromuscular blocking drug GW280430A (AV430A) in dogs. Anesthesiology. 2004 Apr;100(4):846–851.

Published In

Anesthesiology

DOI

ISSN

0003-3022

Publication Date

April 2004

Volume

100

Issue

4

Start / End Page

846 / 851

Location

United States

Related Subject Headings

  • Time Factors
  • Species Specificity
  • Neuromuscular Nondepolarizing Agents
  • Male
  • Lung
  • Isoquinolines
  • Histamine
  • Heart Rate
  • Dose-Response Relationship, Drug
  • Dogs