Disposition of 3-hydroxyquinidine in patients receiving initial intravenous quinidine gluconate for electrophysiology testing of ventricular tachycardia

B. H. Ackerman, K. M. Olsen, E. E. Kennedy, E. H. Taylor, B. H. Chen, D. Jordan, D. J. Ackerman

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Abstract

The formation rate constant and elimination rate constant for 3-hydroxyquinidine were determined in eight patients with ventricular tachycardia. These two parameters (mean ± SD) were found to be 0.784 ± 0.202 and 0.042 ± 0.058 h-1, respectively. Coefficients of determination for the computer-generated line of best fit for serum concentration-time data were 0.986 ± 0.008. Patients received two infusions of quinidine gluconate 5 mg/kg over 30 minutes separated by a 20-30 minute electrophysiologic testing period. Unbound and total 3-hydroxyquinidine concentrations were also determined. Among the eight patients, 3-hydroxyquinidine was 61.9 percent bound. Studies in healthy volunteers had shown 50 percent binding. Linear regression of unbound and total 3-hydroxyquinidine was described by the equation Y = 0.3814X-1.448, r = 0.813. Although half-lives of 3.5-12.4 hours had been reported in healthy volunteers, prolonged half-lives were observed in all but two of our arrhythmia patients.

Original languageEnglish (US)
Pages (from-to)375-378
Number of pages4
JournalDICP, Annals of Pharmacotherapy
Volume23
Issue number5
DOIs
StatePublished - Jan 1 1989

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Electrophysiology
Ventricular Tachycardia
Healthy Volunteers
Cardiac Arrhythmias
Linear Models
3-hydroxyquinidine
quinidine gluconate
Serum

ASJC Scopus subject areas

  • Pharmacology, Toxicology and Pharmaceutics(all)
  • Pharmacology (medical)

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Disposition of 3-hydroxyquinidine in patients receiving initial intravenous quinidine gluconate for electrophysiology testing of ventricular tachycardia. / Ackerman, B. H.; Olsen, K. M.; Kennedy, E. E.; Taylor, E. H.; Chen, B. H.; Jordan, D.; Ackerman, D. J.

In: DICP, Annals of Pharmacotherapy, Vol. 23, No. 5, 01.01.1989, p. 375-378.

Research output: Contribution to journalArticle

Ackerman, B. H. ; Olsen, K. M. ; Kennedy, E. E. ; Taylor, E. H. ; Chen, B. H. ; Jordan, D. ; Ackerman, D. J. / Disposition of 3-hydroxyquinidine in patients receiving initial intravenous quinidine gluconate for electrophysiology testing of ventricular tachycardia. In: DICP, Annals of Pharmacotherapy. 1989 ; Vol. 23, No. 5. pp. 375-378.
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