Cited by 51Cardiac pacing and defibrillation studiesCardiac Arrhythmias and TreatmentsCardiac electrophysiology and arrhythmias

Effect of epinephrine on the efficacy of the internal cardioverter-defibrillator

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Sousa, João, Kou, William, Calkins, Hugh, Rosenheck, Shimon, Kadish, Alan, Morady, Fred·1992·The American Journal of Cardiology

Abstract

To evaluate the effect of sympathetic activation on the efficacy of the implantable cardioverter-defibrillator (ICD) in converting ventricular tachycardia (VT) or ventricular fibrillation (VF), 32 patients who received an ICD because of life-threatening VT/VF underwent 1 week postimplant ICD testing both before and after infusion of 25 (16 patients) or 50 (16 patients) ng/kg/min of epinephrine for greater than or equal to 12 minutes. These infusion rates are known to result in plasma epinephrine concentrations comparable to mild-moderate stress. The patients' mean age was 63 +/- 10 years; 26 had coronary artery disease, 2 had dilated cardiomyopathy and 4 had no evidence of structural heart disease. VT and VF were induced in 16 patients each by programmed stimulation or alternating current. Among the 16 patients with VT, the first ICD discharge (26 to 30 J) was effective in 15 patients in the baseline state and in all 16 patients during epinephrine infusion. Among patients with VF, the first ICD discharge (26 to 30 J) terminated VF in all patients in the baseline state, compared with 12 of 16 patients during epinephrine infusion (p less than 0.05). In 4 patients, VF was terminated during epinephrine infusion only by the second or third ICD discharge (30 J). In conclusion, physiologic increases in the plasma epinephrine concentration may increase the number and energy of shocks needed to terminate VF.

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Crossref · 10.1016/0002-9149(92)90995-b

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Authors
Sousa, J., Kou, W., Calkins, H., Rosenheck, S., Kadish, A., & Morady, F.
Affiliations
University of Michigan (US)
Corresponding author
Morady, Fred
Venue
The American Journal of Cardiology
Publisher
Elsevier BV
Published
1992-02
Volume
69
Issue
5
Pages
509-512
ISSN
0002-9149 (ISSN-L)
OpenAlex
W1998484581
Cited by
51
References
14
Citations by year
2023: 1 · 2022: 1 · 2020: 2 · 2019: 3 · 2018: 2 · 2017: 2 · 2015: 1 · 2014: 1 · 2013: 5 · 2012: 3
FWCI
1.83
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Cardiology (publishedVersion)
  • PubMed (publishedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac pacing and defibrillation studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
Keywords
epinephrine, implantable cardioverter-defibrillator, ventricular tachycardia, ventricular fibrillation, sympathetic activation, programmed electrical stimulation, coronary artery disease, dilated cardiomyopathy
MeSH terms
Aged, Electric Countershock, Epinephrine, Female, Heart, Heart Rate, Humans, Infusions, Intravenous, Male, Middle Aged, Sympathetic Nervous System, Tachycardia, Ventricular Fibrillation, Prostheses and Implants

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